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fmt/ChangeLog.md

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Update changelog
2023-12-23 00:55:02 +00:00
# 10.2.0 - TBD
Update changelog
2023-12-23 23:30:26 +00:00
- Added support for the chrono suffix for days and changed
the suffix for minutes from "m" to the correct "min"
(https://github.com/fmtlib/fmt/pull/3664).
For example ([godbolt](https://godbolt.org/z/9KhMnq9ba)):
```c++
#include <fmt/chrono.h>
int main() {
fmt::print("{}\n", std::chrono::days(42)); // prints "42d"
}
```
Thanks @Richardk2n.
Update changelog
2023-12-28 15:23:56 +00:00
- Fixed an overflow in `std::chrono::time_point` formatting with large dates
(https://github.com/fmtlib/fmt/issues/3725,
https://github.com/fmtlib/fmt/pull/3727). Thanks @cschreib.
Update changelog
2023-12-23 20:20:14 +00:00
- Added a formatter for `std::bitset`
Update changelog
2023-12-23 23:30:26 +00:00
(https://github.com/fmtlib/fmt/pull/3660).
For example ([godbolt](https://godbolt.org/z/bdEaGeYxe)):
Update changelog
2023-12-23 20:20:14 +00:00
```c++
#include <bitset>
#include <fmt/std.h>
int main() {
fmt::print("{}\n", std::bitset<6>(42)); // prints "101010"
}
```
Thanks @muggenhor.
Update changelog
2023-12-23 23:30:26 +00:00
- Added synchronization with the underlying output stream when writing to
the Windows console
(https://github.com/fmtlib/fmt/pull/3668,
https://github.com/fmtlib/fmt/issues/3688,
https://github.com/fmtlib/fmt/pull/3689).
Thanks @Roman-Koshelev and @dimztimz.
Update changelog
2023-12-28 15:23:56 +00:00
- Changed to only export `format_error` when {fmt} is built as a shared
library (https://github.com/fmtlib/fmt/issues/3626,
Update changelog
2023-12-23 04:42:20 +00:00
https://github.com/fmtlib/fmt/pull/3627). Thanks @phprus.
Update changelog
2023-12-23 20:20:14 +00:00
- Made `fmt::streamed` `constexpr`.
(https://github.com/fmtlib/fmt/pull/3650). Thanks @muggenhor.
Update changelog
2023-12-23 04:42:20 +00:00
- Added an option to build without `wchar_t` support on Windows
(https://github.com/fmtlib/fmt/pull/3636). Thanks @glebm.
Update changelog
2023-12-25 14:41:37 +00:00
- Improved build configuration
(https://github.com/fmtlib/fmt/issues/3701,
https://github.com/fmtlib/fmt/pull/3702). Thanks @pklima.
Update changelog
2023-12-23 00:55:02 +00:00
- Fixed various warnings and compilation issues
Update changelog
2023-12-23 04:42:20 +00:00
(https://github.com/fmtlib/fmt/pull/3610,
https://github.com/fmtlib/fmt/pull/3624,
https://github.com/fmtlib/fmt/pull/3630,
Update changelog
2023-12-23 20:20:14 +00:00
https://github.com/fmtlib/fmt/pull/3634,
https://github.com/fmtlib/fmt/pull/3638,
https://github.com/fmtlib/fmt/issues/3645,
https://github.com/fmtlib/fmt/pull/3647,
Update changelog
2023-12-23 23:30:26 +00:00
https://github.com/fmtlib/fmt/pull/3652,
https://github.com/fmtlib/fmt/issues/3654,
https://github.com/fmtlib/fmt/pull/3663,
https://github.com/fmtlib/fmt/pull/3680,
Update changelog
2023-12-25 14:41:37 +00:00
https://github.com/fmtlib/fmt/pull/3695,
https://github.com/fmtlib/fmt/pull/369,
https://github.com/fmtlib/fmt/issues/3712,
https://github.com/fmtlib/fmt/pull/3713,
Update changelog
2023-12-28 15:23:56 +00:00
https://github.com/fmtlib/fmt/pull/3716,
https://github.com/fmtlib/fmt/pull/3723).
Update changelog
2023-12-23 20:20:14 +00:00
Thanks @danakj, @vinayyadav3016, @cyyever, @phprus, @qimiko, @saschasc,
Update changelog
2023-12-25 14:41:37 +00:00
@gsjaardema, @lazka, @Zhaojun-Liu, @carlsmedstad, @hotwatermorning,
Update changelog
2023-12-28 15:23:56 +00:00
@cptFracassa, @kuguma, @PeterJohnson .
Update changelog
2023-12-23 20:20:14 +00:00
- Improved documentation and README
(https://github.com/fmtlib/fmt/pull/3642,
https://github.com/fmtlib/fmt/pull/3653,
https://github.com/fmtlib/fmt/pull/3655,
Update changelog
2023-12-23 23:30:26 +00:00
https://github.com/fmtlib/fmt/pull/3661,
Update changelog
2023-12-28 15:23:56 +00:00
https://github.com/fmtlib/fmt/issues/3673,
Update changelog
2023-12-23 23:30:26 +00:00
https://github.com/fmtlib/fmt/pull/3677).
Thanks @idzm, @perlun, @joycebrum, @fennewald.
Update changelog
2023-12-23 00:55:02 +00:00
- Updated CI dependencies
(https://github.com/fmtlib/fmt/pull/3615,
https://github.com/fmtlib/fmt/pull/3622,
Update changelog
2023-12-23 23:30:26 +00:00
https://github.com/fmtlib/fmt/pull/3623,
https://github.com/fmtlib/fmt/pull/3666,
https://github.com/fmtlib/fmt/pull/3696,
https://github.com/fmtlib/fmt/pull/3697).
Update changelog
2023-12-23 00:55:02 +00:00
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 10.1.1 - 2023-08-28
- Added formatters for `std::atomic` and `atomic_flag`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3574,
https://github.com/fmtlib/fmt/pull/3594).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @wangzw and @AlexGuteniev.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed an error about partial specialization of `formatter<string>`
after instantiation when compiled with gcc and C++20
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3584).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed compilation as a C++20 module with gcc and clang
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3587,
https://github.com/fmtlib/fmt/pull/3597,
https://github.com/fmtlib/fmt/pull/3605).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @MathewBensonCode.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made `fmt::to_string` work with types that have `format_as`
Update changelog
2023-12-23 04:42:20 +00:00
overloads (https://github.com/fmtlib/fmt/pull/3575). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made `formatted_size` work with integral format specifiers at
Simplify URLs
2023-09-04 17:00:13 +00:00
compile time (https://github.com/fmtlib/fmt/pull/3591).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @elbeno.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed a warning about the `no_unique_address` attribute on clang-cl
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3599). Thanks @lukester1975.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved compatibility with the legacy GBK encoding
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3598,
https://github.com/fmtlib/fmt/pull/3599). Thanks @YuHuanTin.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added OpenSSF Scorecard analysis
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3530,
https://github.com/fmtlib/fmt/pull/3571). Thanks @joycebrum.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Updated CI dependencies
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3591,
https://github.com/fmtlib/fmt/pull/3592,
https://github.com/fmtlib/fmt/pull/3593,
https://github.com/fmtlib/fmt/pull/3602).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 10.1.0 - 2023-08-12
- Optimized format string compilation resulting in up to 40% speed up
in compiled `format_to` and \~4x speed up in compiled `format_to_n`
on a concatenation benchmark
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3133,
https://github.com/fmtlib/fmt/issues/3484).
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2023-09-04 14:07:24 +00:00
{fmt} 10.0:
---------------------------------------------------------
Benchmark Time CPU Iterations
---------------------------------------------------------
BM_format_to 78.9 ns 78.9 ns 8881746
BM_format_to_n 568 ns 568 ns 1232089
{fmt} 10.1:
---------------------------------------------------------
Benchmark Time CPU Iterations
---------------------------------------------------------
BM_format_to 54.9 ns 54.9 ns 12727944
BM_format_to_n 133 ns 133 ns 5257795
- Optimized storage of an empty allocator in `basic_memory_buffer`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3485). Thanks @Minty-Meeo.
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2023-09-04 14:07:24 +00:00
- Added formatters for proxy references to elements of
`std::vector<bool>` and `std::bitset<N>`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3567,
https://github.com/fmtlib/fmt/pull/3570). For example
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/zYb79Pvn8)):
```c++
#include <vector>
#include <fmt/std.h>
int main() {
auto v = std::vector<bool>{true};
fmt::print("{}", v[0]);
}
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @phprus and @felix642.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed an ambiguous formatter specialization for containers that look
like container adaptors such as `boost::flat_set`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3556,
https://github.com/fmtlib/fmt/pull/3561). Thanks @5chmidti.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed compilation when formatting durations not convertible from
`std::chrono::seconds`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3430). Thanks @patlkli.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made the `formatter` specialization for `char*` const-correct
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3432). Thanks @timsong-cpp.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made `{}` and `{:}` handled consistently during compile-time checks
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3526).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Disallowed passing temporaries to `make_format_args` to improve API
safety by preventing dangling references.
- Improved the compile-time error for unformattable types
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3478). Thanks @BRevzin.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved the floating-point formatter
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3448,
https://github.com/fmtlib/fmt/pull/3450).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @florimond-collette.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of precision for `long double` larger than 64 bits.
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3539,
https://github.com/fmtlib/fmt/issues/3564).
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2023-09-04 14:07:24 +00:00
- Made floating-point and chrono tests less platform-dependent
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3337,
https://github.com/fmtlib/fmt/issues/3433,
https://github.com/fmtlib/fmt/pull/3434). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Removed the remnants of the Grisu floating-point formatter that has
been replaced by Dragonbox in earlier versions.
- Added `throw_format_error` to the public API
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3551). Thanks @mjerabek.
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2023-09-04 14:07:24 +00:00
- Made `FMT_THROW` assert even if assertions are disabled when
compiling with exceptions disabled
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3418,
https://github.com/fmtlib/fmt/pull/3439). Thanks @BRevzin.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made `format_as` and `std::filesystem::path` formatter work with
exotic code unit types.
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3457,
https://github.com/fmtlib/fmt/pull/3476). Thanks @gix and @hmbj.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support for the `?` format specifier to
`std::filesystem::path` and made the default unescaped for
consistency with strings.
- Deprecated the wide stream overload of `printf`.
- Removed unused `basic_printf_parse_context`.
- Improved RTTI detection used when formatting exceptions
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3468). Thanks @danakj.
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2023-09-04 14:07:24 +00:00
- Improved compatibility with VxWorks7
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3467). Thanks @wenshan1.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved documentation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3174,
https://github.com/fmtlib/fmt/issues/3423,
https://github.com/fmtlib/fmt/pull/3454,
https://github.com/fmtlib/fmt/issues/3458,
https://github.com/fmtlib/fmt/pull/3461,
https://github.com/fmtlib/fmt/issues/3487,
https://github.com/fmtlib/fmt/pull/3515).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @zencatalyst, @rlalik and @mikecrowe.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved build and CI configurations
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3449,
https://github.com/fmtlib/fmt/pull/3451,
https://github.com/fmtlib/fmt/pull/3452,
https://github.com/fmtlib/fmt/pull/3453,
https://github.com/fmtlib/fmt/pull/3459,
https://github.com/fmtlib/fmt/issues/3481,
https://github.com/fmtlib/fmt/pull/3486,
https://github.com/fmtlib/fmt/issues/3489,
https://github.com/fmtlib/fmt/pull/3496,
https://github.com/fmtlib/fmt/issues/3517,
https://github.com/fmtlib/fmt/pull/3523,
https://github.com/fmtlib/fmt/pull/3563).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @joycebrum, @glebm, @phprus, @petrmanek, @setoye and @abouvier.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed various warnings and compilation issues
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3408,
https://github.com/fmtlib/fmt/issues/3424,
https://github.com/fmtlib/fmt/issues/3444,
https://github.com/fmtlib/fmt/pull/3446,
https://github.com/fmtlib/fmt/pull/3475,
https://github.com/fmtlib/fmt/pull/3482,
https://github.com/fmtlib/fmt/issues/3492,
https://github.com/fmtlib/fmt/pull/3493,
https://github.com/fmtlib/fmt/pull/3508,
https://github.com/fmtlib/fmt/issues/3509,
https://github.com/fmtlib/fmt/issues/3533,
https://github.com/fmtlib/fmt/pull/3542,
https://github.com/fmtlib/fmt/issues/3543,
https://github.com/fmtlib/fmt/issues/3540,
https://github.com/fmtlib/fmt/pull/3544,
https://github.com/fmtlib/fmt/issues/3548,
https://github.com/fmtlib/fmt/pull/3549,
https://github.com/fmtlib/fmt/pull/3550,
https://github.com/fmtlib/fmt/pull/3552).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @adesitter, @hmbj, @Minty-Meeo, @phprus, @TobiSchluter,
@kieranclancy, @alexeedm, @jurihock, @Ozomahtli and @razaqq.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 10.0.0 - 2023-05-09
- Replaced Grisu with a new floating-point formatting algorithm for
Simplify URLs
2023-09-04 17:00:13 +00:00
given precision (https://github.com/fmtlib/fmt/issues/3262,
https://github.com/fmtlib/fmt/issues/2750,
https://github.com/fmtlib/fmt/pull/3269,
https://github.com/fmtlib/fmt/pull/3276). The new algorithm
Convert changelog to markdown for compatibility with release notes
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is based on Dragonbox already used for the shortest representation
and gives substantial performance improvement:
Simplify URLs
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![](https://user-images.githubusercontent.com/33922675/211956670-84891a09-6867-47d9-82fc-3230da7abe0f.png)
Convert changelog to markdown for compatibility with release notes
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- Red: new algorithm
- Green: new algorithm with `FMT_USE_FULL_CACHE_DRAGONBOX` defined
to 1
- Blue: old algorithm
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @jk-jeon.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Replaced `snprintf`-based hex float formatter with an internal
Simplify URLs
2023-09-04 17:00:13 +00:00
implementation (https://github.com/fmtlib/fmt/pull/3179,
https://github.com/fmtlib/fmt/pull/3203). This removes the
Cleanup changelog
2023-09-04 16:05:07 +00:00
last usage of `s(n)printf` in {fmt}. Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed alignment of floating-point numbers with localization
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3263,
https://github.com/fmtlib/fmt/pull/3272). Thanks @ShawnZhong.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made handling of `#` consistent with `std::format`.
- Improved C++20 module support
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3134,
https://github.com/fmtlib/fmt/pull/3254,
https://github.com/fmtlib/fmt/pull/3386,
https://github.com/fmtlib/fmt/pull/3387,
https://github.com/fmtlib/fmt/pull/3388,
https://github.com/fmtlib/fmt/pull/3392,
https://github.com/fmtlib/fmt/pull/3397,
https://github.com/fmtlib/fmt/pull/3399,
https://github.com/fmtlib/fmt/pull/3400).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @laitingsheng, @Orvid and @DanielaE.
- Switched to the [modules CMake library](https://github.com/vitaut/modules)
which allows building {fmt} as a C++20 module with clang:
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2023-09-04 14:07:24 +00:00
CXX=clang++ cmake -DFMT_MODULE=ON .
make
- Made `format_as` work with any user-defined type and not just enums.
For example ([godbolt](https://godbolt.org/z/b7rqhq5Kh)):
```c++
#include <fmt/format.h>
struct floaty_mc_floatface {
double value;
};
auto format_as(floaty_mc_floatface f) { return f.value; }
int main() {
fmt::print("{:8}\n", floaty_mc_floatface{0.42}); // prints " 0.42"
}
```
- Removed deprecated implicit conversions for enums and conversions to
primitive types for compatibility with `std::format` and to prevent
potential ODR violations. Use `format_as` instead.
- Added support for fill, align and width to the time point formatter
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3237,
https://github.com/fmtlib/fmt/pull/3260,
https://github.com/fmtlib/fmt/pull/3275). For example
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/rKP6MGz6c)):
```c++
#include <fmt/chrono.h>
int main() {
// prints " 2023"
fmt::print("{:>8%Y}\n", std::chrono::system_clock::now());
}
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @ShawnZhong.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Implemented formatting of subseconds
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2207,
https://github.com/fmtlib/fmt/issues/3117,
https://github.com/fmtlib/fmt/pull/3115,
https://github.com/fmtlib/fmt/pull/3143,
https://github.com/fmtlib/fmt/pull/3144,
https://github.com/fmtlib/fmt/pull/3349). For example
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/45738oGEo)):
```c++
#include <fmt/chrono.h>
int main() {
// prints 01.234567
fmt::print("{:%S}\n", std::chrono::microseconds(1234567));
}
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @patrickroocks @phprus and @BRevzin.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added precision support to `%S`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3148). Thanks @SappyJoy
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support for `std::utc_time`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3098,
https://github.com/fmtlib/fmt/pull/3110). Thanks @patrickroocks.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Switched formatting of `std::chrono::system_clock` from local time
to UTC for compatibility with the standard
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3199,
https://github.com/fmtlib/fmt/pull/3230). Thanks @ned14.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support for `%Ez` and `%Oz` to chrono formatters.
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3220,
https://github.com/fmtlib/fmt/pull/3222). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved validation of format specifiers for `std::chrono::duration`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3219,
https://github.com/fmtlib/fmt/pull/3232). Thanks @ShawnZhong.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed formatting of time points before the epoch
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3117,
https://github.com/fmtlib/fmt/pull/3261). For example
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/f7bcznb3W)):
```c++
#include <fmt/chrono.h>
int main() {
auto t = std::chrono::system_clock::from_time_t(0) -
std::chrono::milliseconds(250);
fmt::print("{:%S}\n", t); // prints 59.750000000
}
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @ShawnZhong.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Experimental: implemented glibc extension for padding seconds,
minutes and hours
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2959,
https://github.com/fmtlib/fmt/pull/3271). Thanks @ShawnZhong.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added a formatter for `std::exception`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2977,
https://github.com/fmtlib/fmt/issues/3012,
https://github.com/fmtlib/fmt/pull/3062,
https://github.com/fmtlib/fmt/pull/3076,
https://github.com/fmtlib/fmt/pull/3119). For example
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/8xoWGs9e4)):
```c++
#include <fmt/std.h>
#include <vector>
int main() {
try {
std::vector<bool>().at(0);
} catch(const std::exception& e) {
fmt::print("{}", e);
}
}
```
prints:
vector<bool>::_M_range_check: __n (which is 0) >= this->size() (which is 0)
Cleanup changelog
2023-09-04 16:05:07 +00:00
on libstdc++. Thanks @zach2good and @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Moved `std::error_code` formatter from `fmt/os.h` to `fmt/std.h`.
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3125). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added formatters for standard container adapters:
`std::priority_queue`, `std::queue` and `std::stack`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3215,
https://github.com/fmtlib/fmt/pull/3279). For example
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/74h1xY9qK)):
```c++
#include <fmt/ranges.h>
#include <stack>
#include <vector>
int main() {
auto s = std::stack<bool, std::vector<bool>>();
for (auto b: {true, false, true}) s.push(b);
fmt::print("{}\n", s); // prints [true, false, true]
}
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @ShawnZhong.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
Cleanup changelog
2023-09-04 16:05:07 +00:00
- Added a formatter for `std::optional` to `fmt/std.h`.
Thanks @tom-huntington.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed formatting of valueless by exception variants
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3347). Thanks @TheOmegaCarrot.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made `fmt::ptr` accept `unique_ptr` with a custom deleter
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3177). Thanks @hmbj.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed formatting of noncopyable ranges and nested ranges of chars
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3158
https://github.com/fmtlib/fmt/issues/3286,
https://github.com/fmtlib/fmt/pull/3290). Thanks @BRevzin.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed issues with formatting of paths and ranges of paths
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3319,
https://github.com/fmtlib/fmt/pull/3321
https://github.com/fmtlib/fmt/issues/3322). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved handling of invalid Unicode in paths.
- Enabled compile-time checks on Apple clang 14 and later
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3331). Thanks @cloyce.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved compile-time checks of named arguments
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3105,
https://github.com/fmtlib/fmt/pull/3214). Thanks @rbrich.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed formatting when both alignment and `0` are given
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3236,
https://github.com/fmtlib/fmt/pull/3248). Thanks @ShawnZhong.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved Unicode support in the experimental file API on Windows
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3234,
https://github.com/fmtlib/fmt/pull/3293). Thanks @Fros1er.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Unified UTF transcoding
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3416). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support for UTF-8 digit separators via an experimental locale
Simplify URLs
2023-09-04 17:00:13 +00:00
facet (https://github.com/fmtlib/fmt/issues/1861). For
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
example ([godbolt](https://godbolt.org/z/f7bcznb3W)):
```c++
auto loc = std::locale(
std::locale(), new fmt::format_facet<std::locale>("’"));
auto s = fmt::format(loc, "{:L}", 1000);
```
where `’` is U+2019 used as a digit separator in the de_CH locale.
- Added an overload of `formatted_size` that takes a locale
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3084,
https://github.com/fmtlib/fmt/pull/3087). Thanks @gerboengels.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Removed the deprecated `FMT_DEPRECATED_OSTREAM`.
- Fixed a UB when using a null `std::string_view` with
`fmt::to_string` or format string compilation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3241,
https://github.com/fmtlib/fmt/pull/3244). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added `starts_with` to the fallback `string_view` implementation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3080). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added `fmt::basic_format_string::get()` for compatibility with
`basic_format_string`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3111). Thanks @huangqinjin.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added `println` for compatibility with C++23
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3267). Thanks @ShawnZhong.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Renamed the `FMT_EXPORT` macro for shared library usage to
`FMT_LIB_EXPORT`.
- Improved documentation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3108,
https://github.com/fmtlib/fmt/issues/3169,
https://github.com/fmtlib/fmt/pull/3243).
https://github.com/fmtlib/fmt/pull/3404).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @Cleroth and @Vertexwahn.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved build configuration and tests
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3118,
https://github.com/fmtlib/fmt/pull/3120,
https://github.com/fmtlib/fmt/pull/3188,
https://github.com/fmtlib/fmt/issues/3189,
https://github.com/fmtlib/fmt/pull/3198,
https://github.com/fmtlib/fmt/pull/3205,
https://github.com/fmtlib/fmt/pull/3207,
https://github.com/fmtlib/fmt/pull/3210,
https://github.com/fmtlib/fmt/pull/3240,
https://github.com/fmtlib/fmt/pull/3256,
https://github.com/fmtlib/fmt/pull/3264,
https://github.com/fmtlib/fmt/issues/3299,
https://github.com/fmtlib/fmt/pull/3302,
https://github.com/fmtlib/fmt/pull/3312,
https://github.com/fmtlib/fmt/issues/3317,
https://github.com/fmtlib/fmt/pull/3328,
https://github.com/fmtlib/fmt/pull/3333,
https://github.com/fmtlib/fmt/pull/3369,
https://github.com/fmtlib/fmt/issues/3373,
https://github.com/fmtlib/fmt/pull/3395,
https://github.com/fmtlib/fmt/pull/3406,
https://github.com/fmtlib/fmt/pull/3411).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @dimztimz, @phprus, @DavidKorczynski, @ChrisThrasher,
@FrancoisCarouge, @kennyweiss, @luzpaz, @codeinred, @Mixaill, @joycebrum,
@kevinhwang and @Vertexwahn.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed a regression in handling empty format specifiers after a colon
Simplify URLs
2023-09-04 17:00:13 +00:00
(`{:}`) (https://github.com/fmtlib/fmt/pull/3086). Thanks @oxidase.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Worked around a broken implementation of
`std::is_constant_evaluated` in some versions of libstdc++ on clang
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3247,
https://github.com/fmtlib/fmt/pull/3281). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed formatting of volatile variables
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3068).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed various warnings and compilation issues
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3057,
https://github.com/fmtlib/fmt/pull/3066,
https://github.com/fmtlib/fmt/pull/3072,
https://github.com/fmtlib/fmt/pull/3082,
https://github.com/fmtlib/fmt/pull/3091,
https://github.com/fmtlib/fmt/issues/3092,
https://github.com/fmtlib/fmt/pull/3093,
https://github.com/fmtlib/fmt/pull/3095,
https://github.com/fmtlib/fmt/issues/3096,
https://github.com/fmtlib/fmt/pull/3097,
https://github.com/fmtlib/fmt/issues/3128,
https://github.com/fmtlib/fmt/pull/3129,
https://github.com/fmtlib/fmt/pull/3137,
https://github.com/fmtlib/fmt/pull/3139,
https://github.com/fmtlib/fmt/issues/3140,
https://github.com/fmtlib/fmt/pull/3142,
https://github.com/fmtlib/fmt/issues/3149,
https://github.com/fmtlib/fmt/pull/3150,
https://github.com/fmtlib/fmt/issues/3154,
https://github.com/fmtlib/fmt/issues/3163,
https://github.com/fmtlib/fmt/issues/3178,
https://github.com/fmtlib/fmt/pull/3184,
https://github.com/fmtlib/fmt/pull/3196,
https://github.com/fmtlib/fmt/issues/3204,
https://github.com/fmtlib/fmt/pull/3206,
https://github.com/fmtlib/fmt/pull/3208,
https://github.com/fmtlib/fmt/issues/3213,
https://github.com/fmtlib/fmt/pull/3216,
https://github.com/fmtlib/fmt/issues/3224,
https://github.com/fmtlib/fmt/issues/3226,
https://github.com/fmtlib/fmt/issues/3228,
https://github.com/fmtlib/fmt/pull/3229,
https://github.com/fmtlib/fmt/pull/3259,
https://github.com/fmtlib/fmt/issues/3274,
https://github.com/fmtlib/fmt/issues/3287,
https://github.com/fmtlib/fmt/pull/3288,
https://github.com/fmtlib/fmt/issues/3292,
https://github.com/fmtlib/fmt/pull/3295,
https://github.com/fmtlib/fmt/pull/3296,
https://github.com/fmtlib/fmt/issues/3298,
https://github.com/fmtlib/fmt/issues/3325,
https://github.com/fmtlib/fmt/pull/3326,
https://github.com/fmtlib/fmt/issues/3334,
https://github.com/fmtlib/fmt/issues/3342,
https://github.com/fmtlib/fmt/pull/3343,
https://github.com/fmtlib/fmt/issues/3351,
https://github.com/fmtlib/fmt/pull/3352,
https://github.com/fmtlib/fmt/pull/3362,
https://github.com/fmtlib/fmt/issues/3365,
https://github.com/fmtlib/fmt/pull/3366,
https://github.com/fmtlib/fmt/pull/3374,
https://github.com/fmtlib/fmt/issues/3377,
https://github.com/fmtlib/fmt/pull/3378,
https://github.com/fmtlib/fmt/issues/3381,
https://github.com/fmtlib/fmt/pull/3398,
https://github.com/fmtlib/fmt/pull/3413,
https://github.com/fmtlib/fmt/issues/3415).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @phprus, @gsjaardema, @NewbieOrange, @EngineLessCC, @asmaloney,
@HazardyKnusperkeks, @sergiud, @Youw, @thesmurph, @czudziakm,
@Roman-Koshelev, @chronoxor, @ShawnZhong, @russelltg, @glebm, @tmartin-gh,
@Zhaojun-Liu, @louiswins and @mogemimi.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 9.1.0 - 2022-08-27
- `fmt::formatted_size` now works at compile time
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3026). For example
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/1MW5rMdf8)):
```c++
#include <fmt/compile.h>
int main() {
using namespace fmt::literals;
constexpr size_t n = fmt::formatted_size("{}"_cf, 42);
fmt::print("{}\n", n); // prints 2
}
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @marksantaniello.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of invalid UTF-8
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3038,
https://github.com/fmtlib/fmt/pull/3044,
https://github.com/fmtlib/fmt/pull/3056).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @phprus and @skeeto.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved Unicode support in `ostream` overloads of `print`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2994,
https://github.com/fmtlib/fmt/pull/3001,
https://github.com/fmtlib/fmt/pull/3025). Thanks @dimztimz.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of the sign specifier in localized formatting on
systems with 32-bit `wchar_t`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3041).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support for wide streams to `fmt::streamed`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2994). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added the `n` specifier that disables the output of delimiters when
Simplify URLs
2023-09-04 17:00:13 +00:00
formatting ranges (https://github.com/fmtlib/fmt/pull/2981,
https://github.com/fmtlib/fmt/pull/2983). For example
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/roKqGdj8c)):
```c++
#include <fmt/ranges.h>
#include <vector>
int main() {
auto v = std::vector{1, 2, 3};
fmt::print("{:n}\n", v); // prints 1, 2, 3
}
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @BRevzin.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Worked around problematic `std::string_view` constructors introduced
Simplify URLs
2023-09-04 17:00:13 +00:00
in C++23 (https://github.com/fmtlib/fmt/issues/3030,
https://github.com/fmtlib/fmt/issues/3050). Thanks @strega-nil-ms.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improve handling (exclusion) of recursive ranges
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2968,
https://github.com/fmtlib/fmt/pull/2974). Thanks @Dani-Hub.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved error reporting in format string compilation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/3055).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved the implementation of
[Dragonbox](https://github.com/jk-jeon/dragonbox), the algorithm
used for the default floating-point formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2984). Thanks @jk-jeon.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed issues with floating-point formatting on exotic platforms.
- Improved the implementation of chrono formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/3010). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved documentation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2966,
https://github.com/fmtlib/fmt/pull/3009,
https://github.com/fmtlib/fmt/issues/3020,
https://github.com/fmtlib/fmt/pull/3037).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @mwinterb, @jcelerier and @remiburtin.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved build configuration
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2991,
https://github.com/fmtlib/fmt/pull/2995,
https://github.com/fmtlib/fmt/issues/3004,
https://github.com/fmtlib/fmt/pull/3007,
https://github.com/fmtlib/fmt/pull/3040).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @dimztimz and @hwhsu1231.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed various warnings and compilation issues
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2969,
https://github.com/fmtlib/fmt/pull/2971,
https://github.com/fmtlib/fmt/issues/2975,
https://github.com/fmtlib/fmt/pull/2982,
https://github.com/fmtlib/fmt/pull/2985,
https://github.com/fmtlib/fmt/issues/2988,
https://github.com/fmtlib/fmt/issues/2989,
https://github.com/fmtlib/fmt/issues/3000,
https://github.com/fmtlib/fmt/issues/3006,
https://github.com/fmtlib/fmt/issues/3014,
https://github.com/fmtlib/fmt/issues/3015,
https://github.com/fmtlib/fmt/pull/3021,
https://github.com/fmtlib/fmt/issues/3023,
https://github.com/fmtlib/fmt/pull/3024,
https://github.com/fmtlib/fmt/pull/3029,
https://github.com/fmtlib/fmt/pull/3043,
https://github.com/fmtlib/fmt/issues/3052,
https://github.com/fmtlib/fmt/pull/3053,
https://github.com/fmtlib/fmt/pull/3054).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @h-friederich, @dimztimz, @olupton, @bernhardmgruber and @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 9.0.0 - 2022-07-04
- Switched to the internal floating point formatter for all decimal
presentation formats. In particular this results in consistent
rounding on all platforms and removing the `s[n]printf` fallback for
decimal FP formatting.
- Compile-time floating point formatting no longer requires the
header-only mode. For example
([godbolt](https://godbolt.org/z/G37PTeG3b)):
```c++
#include <array>
#include <fmt/compile.h>
consteval auto compile_time_dtoa(double value) -> std::array<char, 10> {
auto result = std::array<char, 10>();
fmt::format_to(result.data(), FMT_COMPILE("{}"), value);
return result;
}
constexpr auto answer = compile_time_dtoa(0.42);
```
works with the default settings.
- Improved the implementation of
[Dragonbox](https://github.com/jk-jeon/dragonbox), the algorithm
used for the default floating-point formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2713,
https://github.com/fmtlib/fmt/pull/2750). Thanks @jk-jeon.
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2023-09-04 14:07:24 +00:00
- Made `fmt::to_string` work with `__float128`. This uses the internal
FP formatter and works even on system without `__float128` support
in `[s]printf`.
- Disabled automatic `std::ostream` insertion operator (`operator<<`)
discovery when `fmt/ostream.h` is included to prevent ODR
violations. You can get the old behavior by defining
`FMT_DEPRECATED_OSTREAM` but this will be removed in the next major
release. Use `fmt::streamed` or `fmt::ostream_formatter` to enable
formatting via `std::ostream` instead.
- Added `fmt::ostream_formatter` that can be used to write `formatter`
specializations that perform formatting via `std::ostream`. For
example ([godbolt](https://godbolt.org/z/5sEc5qMsf)):
```c++
#include <fmt/ostream.h>
struct date {
int year, month, day;
friend std::ostream& operator<<(std::ostream& os, const date& d) {
return os << d.year << '-' << d.month << '-' << d.day;
}
};
template <> struct fmt::formatter<date> : ostream_formatter {};
std::string s = fmt::format("The date is {}", date{2012, 12, 9});
// s == "The date is 2012-12-9"
```
- Added the `fmt::streamed` function that takes an object and formats
it via `std::ostream`. For example
([godbolt](https://godbolt.org/z/5G3346G1f)):
```c++
#include <thread>
#include <fmt/ostream.h>
int main() {
fmt::print("Current thread id: {}\n",
fmt::streamed(std::this_thread::get_id()));
}
```
Note that `fmt/std.h` provides a `formatter` specialization for
`std::thread::id` so you don\'t need to format it via
`std::ostream`.
- Deprecated implicit conversions of unscoped enums to integers for
consistency with scoped enums.
- Added an argument-dependent lookup based `format_as` extension API
to simplify formatting of enums.
- Added experimental `std::variant` formatting support
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2941). For example
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2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/KG9z6cq68)):
```c++
#include <variant>
#include <fmt/std.h>
int main() {
auto v = std::variant<int, std::string>(42);
fmt::print("{}\n", v);
}
```
prints:
variant(42)
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @jehelset.
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2023-09-04 14:07:24 +00:00
- Added experimental `std::filesystem::path` formatting support
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2865,
https://github.com/fmtlib/fmt/pull/2902,
https://github.com/fmtlib/fmt/issues/2917,
https://github.com/fmtlib/fmt/pull/2918). For example
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2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/o44dMexEb)):
```c++
#include <filesystem>
#include <fmt/std.h>
int main() {
fmt::print("There is no place like {}.", std::filesystem::path("/home"));
}
```
prints:
There is no place like "/home".
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added a `std::thread::id` formatter to `fmt/std.h`. For example
([godbolt](https://godbolt.org/z/j1azbYf3E)):
```c++
#include <thread>
#include <fmt/std.h>
int main() {
fmt::print("Current thread id: {}\n", std::this_thread::get_id());
}
```
- Added `fmt::styled` that applies a text style to an individual
Simplify URLs
2023-09-04 17:00:13 +00:00
argument (https://github.com/fmtlib/fmt/pull/2793). For
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2023-09-04 14:07:24 +00:00
example ([godbolt](https://godbolt.org/z/vWGW7v5M6)):
```c++
#include <fmt/chrono.h>
#include <fmt/color.h>
int main() {
auto now = std::chrono::system_clock::now();
fmt::print(
"[{}] {}: {}\n",
fmt::styled(now, fmt::emphasis::bold),
fmt::styled("error", fg(fmt::color::red)),
"something went wrong");
}
```
prints
Simplify URLs
2023-09-04 17:00:13 +00:00
![](https://user-images.githubusercontent.com/576385/175071215-12809244-dab0-4005-96d8-7cd911c964d5.png)
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @rbrugo.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made `fmt::print` overload for text styles correctly handle UTF-8
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2681,
https://github.com/fmtlib/fmt/pull/2701). Thanks @AlexGuteniev.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed Unicode handling when writing to an ostream.
- Added support for nested specifiers to range formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2673). For example
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/xd3Gj38cf)):
```c++
#include <vector>
#include <fmt/ranges.h>
int main() {
fmt::print("{::#x}\n", std::vector{10, 20, 30});
}
```
prints `[0xa, 0x14, 0x1e]`.
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @BRevzin.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Implemented escaping of wide strings in ranges
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2904). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support for ranges with `begin` / `end` found via the
argument-dependent lookup
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2807). Thanks @rbrugo.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed formatting of certain kinds of ranges of ranges
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2787). Thanks @BRevzin.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of maps with element types other than `std::pair`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2944). Thanks @BrukerJWD.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made tuple formatter enabled only if elements are formattable
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2939,
https://github.com/fmtlib/fmt/pull/2940). Thanks @jehelset.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made `fmt::join` compatible with format string compilation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2719,
https://github.com/fmtlib/fmt/pull/2720). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made compile-time checks work with named arguments of custom types
and `std::ostream` `print` overloads
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2816,
https://github.com/fmtlib/fmt/issues/2817,
https://github.com/fmtlib/fmt/pull/2819). Thanks @timsong-cpp.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Removed `make_args_checked` because it is no longer needed for
compile-time checks
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2760). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Removed the following deprecated APIs: `_format`, `arg_join`, the
`format_to` overload that takes a memory buffer, `[v]fprintf` that
takes an `ostream`.
- Removed the deprecated implicit conversion of `[const] signed char*`
and `[const] unsigned char*` to C strings.
- Removed the deprecated `fmt/locale.h`.
- Replaced the deprecated `fileno()` with `descriptor()` in
`buffered_file`.
- Moved `to_string_view` to the `detail` namespace since it\'s an
implementation detail.
- Made access mode of a created file consistent with `fopen` by
setting `S_IWGRP` and `S_IWOTH`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2733). Thanks @arogge.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Removed a redundant buffer resize when formatting to `std::ostream`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2842,
https://github.com/fmtlib/fmt/pull/2843). Thanks @jcelerier.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made precision computation for strings consistent with width
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2888).
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2023-09-04 14:07:24 +00:00
- Fixed handling of locale separators in floating point formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2830).
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2023-09-04 14:07:24 +00:00
- Made sign specifiers work with `__int128_t`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2773).
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2023-09-04 14:07:24 +00:00
- Improved support for systems such as CHERI with extra data stored in
Simplify URLs
2023-09-04 17:00:13 +00:00
pointers (https://github.com/fmtlib/fmt/pull/2932).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @davidchisnall.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved documentation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2706,
https://github.com/fmtlib/fmt/pull/2712,
https://github.com/fmtlib/fmt/pull/2789,
https://github.com/fmtlib/fmt/pull/2803,
https://github.com/fmtlib/fmt/pull/2805,
https://github.com/fmtlib/fmt/pull/2815,
https://github.com/fmtlib/fmt/pull/2924).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @BRevzin, @Pokechu22, @setoye, @rtobar, @rbrugo, @anoonD and
@leha-bot.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved build configuration
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2766,
https://github.com/fmtlib/fmt/pull/2772,
https://github.com/fmtlib/fmt/pull/2836,
https://github.com/fmtlib/fmt/pull/2852,
https://github.com/fmtlib/fmt/pull/2907,
https://github.com/fmtlib/fmt/pull/2913,
https://github.com/fmtlib/fmt/pull/2914).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @kambala-decapitator, @mattiasljungstrom, @kieselnb, @nathannaveen
and @Vertexwahn.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed various warnings and compilation issues
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2408,
https://github.com/fmtlib/fmt/issues/2507,
https://github.com/fmtlib/fmt/issues/2697,
https://github.com/fmtlib/fmt/issues/2715,
https://github.com/fmtlib/fmt/issues/2717,
https://github.com/fmtlib/fmt/pull/2722,
https://github.com/fmtlib/fmt/pull/2724,
https://github.com/fmtlib/fmt/pull/2725,
https://github.com/fmtlib/fmt/issues/2726,
https://github.com/fmtlib/fmt/pull/2728,
https://github.com/fmtlib/fmt/pull/2732,
https://github.com/fmtlib/fmt/issues/2738,
https://github.com/fmtlib/fmt/pull/2742,
https://github.com/fmtlib/fmt/issues/2744,
https://github.com/fmtlib/fmt/issues/2745,
https://github.com/fmtlib/fmt/issues/2746,
https://github.com/fmtlib/fmt/issues/2754,
https://github.com/fmtlib/fmt/pull/2755,
https://github.com/fmtlib/fmt/issues/2757,
https://github.com/fmtlib/fmt/pull/2758,
https://github.com/fmtlib/fmt/issues/2761,
https://github.com/fmtlib/fmt/pull/2762,
https://github.com/fmtlib/fmt/issues/2763,
https://github.com/fmtlib/fmt/pull/2765,
https://github.com/fmtlib/fmt/issues/2769,
https://github.com/fmtlib/fmt/pull/2770,
https://github.com/fmtlib/fmt/issues/2771,
https://github.com/fmtlib/fmt/issues/2777,
https://github.com/fmtlib/fmt/pull/2779,
https://github.com/fmtlib/fmt/pull/2782,
https://github.com/fmtlib/fmt/pull/2783,
https://github.com/fmtlib/fmt/issues/2794,
https://github.com/fmtlib/fmt/issues/2796,
https://github.com/fmtlib/fmt/pull/2797,
https://github.com/fmtlib/fmt/pull/2801,
https://github.com/fmtlib/fmt/pull/2802,
https://github.com/fmtlib/fmt/issues/2808,
https://github.com/fmtlib/fmt/issues/2818,
https://github.com/fmtlib/fmt/pull/2819,
https://github.com/fmtlib/fmt/issues/2829,
https://github.com/fmtlib/fmt/issues/2835,
https://github.com/fmtlib/fmt/issues/2848,
https://github.com/fmtlib/fmt/issues/2860,
https://github.com/fmtlib/fmt/pull/2861,
https://github.com/fmtlib/fmt/pull/2882,
https://github.com/fmtlib/fmt/issues/2886,
https://github.com/fmtlib/fmt/issues/2891,
https://github.com/fmtlib/fmt/pull/2892,
https://github.com/fmtlib/fmt/issues/2895,
https://github.com/fmtlib/fmt/issues/2896,
https://github.com/fmtlib/fmt/pull/2903,
https://github.com/fmtlib/fmt/issues/2906,
https://github.com/fmtlib/fmt/issues/2908,
https://github.com/fmtlib/fmt/pull/2909,
https://github.com/fmtlib/fmt/issues/2920,
https://github.com/fmtlib/fmt/pull/2922,
https://github.com/fmtlib/fmt/pull/2927,
https://github.com/fmtlib/fmt/pull/2929,
https://github.com/fmtlib/fmt/issues/2936,
https://github.com/fmtlib/fmt/pull/2937,
https://github.com/fmtlib/fmt/pull/2938,
https://github.com/fmtlib/fmt/pull/2951,
https://github.com/fmtlib/fmt/issues/2954,
https://github.com/fmtlib/fmt/pull/2957,
https://github.com/fmtlib/fmt/issues/2958,
https://github.com/fmtlib/fmt/pull/2960).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @matrackif @Tobi823, @ivan-volnov, @VasiliPupkin256,
@federico-busato, @barcharcraz, @jk-jeon, @HazardyKnusperkeks, @dalboris,
@seanm, @gsjaardema, @timsong-cpp, @seanm, @frithrah, @chronoxor, @Agga,
@madmaxoft, @JurajX, @phprus and @Dani-Hub.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 8.1.1 - 2022-01-06
- Restored ABI compatibility with version 8.0.x
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2695,
https://github.com/fmtlib/fmt/pull/2696). Thanks @saraedum.
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2023-09-04 14:07:24 +00:00
- Fixed chrono formatting on big endian systems
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2698,
https://github.com/fmtlib/fmt/pull/2699).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @phprus and @xvitaly.
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2023-09-04 14:07:24 +00:00
- Fixed a linkage error with mingw
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2691,
https://github.com/fmtlib/fmt/pull/2692). Thanks @rbberger.
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2023-09-04 14:07:24 +00:00
# 8.1.0 - 2022-01-02
- Optimized chrono formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2500,
https://github.com/fmtlib/fmt/pull/2537,
https://github.com/fmtlib/fmt/issues/2541,
https://github.com/fmtlib/fmt/pull/2544,
https://github.com/fmtlib/fmt/pull/2550,
https://github.com/fmtlib/fmt/pull/2551,
https://github.com/fmtlib/fmt/pull/2576,
https://github.com/fmtlib/fmt/issues/2577,
https://github.com/fmtlib/fmt/pull/2586,
https://github.com/fmtlib/fmt/pull/2591,
https://github.com/fmtlib/fmt/pull/2594,
https://github.com/fmtlib/fmt/pull/2602,
https://github.com/fmtlib/fmt/pull/2617,
https://github.com/fmtlib/fmt/issues/2628,
https://github.com/fmtlib/fmt/pull/2633,
https://github.com/fmtlib/fmt/issues/2670,
https://github.com/fmtlib/fmt/pull/2671).
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Processing of some specifiers such as `%z` and `%Y` is now up to
10-20 times faster, for example on GCC 11 with libstdc++:
----------------------------------------------------------------------------
Benchmark Before After
----------------------------------------------------------------------------
FMTFormatter_z 261 ns 26.3 ns
FMTFormatterCompile_z 246 ns 11.6 ns
FMTFormatter_Y 263 ns 26.1 ns
FMTFormatterCompile_Y 244 ns 10.5 ns
----------------------------------------------------------------------------
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @phprus and @toughengineer.
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2023-09-04 14:07:24 +00:00
- Implemented subsecond formatting for chrono durations
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2623). For example
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([godbolt](https://godbolt.org/z/es7vWTETe)):
```c++
#include <fmt/chrono.h>
int main() {
fmt::print("{:%S}", std::chrono::milliseconds(1234));
}
```
prints \"01.234\".
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @matrackif.
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2023-09-04 14:07:24 +00:00
- Fixed handling of precision 0 when formatting chrono durations
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2587,
https://github.com/fmtlib/fmt/pull/2588). Thanks @lukester1975.
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2023-09-04 14:07:24 +00:00
- Fixed an overflow on invalid inputs in the `tm` formatter
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2564). Thanks @phprus.
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- Added `fmt::group_digits` that formats integers with a non-localized
digit separator (comma) for groups of three digits. For example
([godbolt](https://godbolt.org/z/TxGxG9Poq)):
```c++
#include <fmt/format.h>
int main() {
fmt::print("{} dollars", fmt::group_digits(1000000));
}
```
prints \"1,000,000 dollars\".
- Added support for faint, conceal, reverse and blink text styles
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2394):
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2023-09-04 14:07:24 +00:00
<https://user-images.githubusercontent.com/576385/147710227-c68f5317-f8fa-42c3-9123-7c4ba3c398cb.mp4>
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @benit8 and @data-man.
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2023-09-04 14:07:24 +00:00
- Added experimental support for compile-time floating point
Simplify URLs
2023-09-04 17:00:13 +00:00
formatting (https://github.com/fmtlib/fmt/pull/2426,
https://github.com/fmtlib/fmt/pull/2470). It is currently
Cleanup changelog
2023-09-04 16:05:07 +00:00
limited to the header-only mode. Thanks @alexezeder.
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- Added UDL-based named argument support to compile-time format string
Simplify URLs
2023-09-04 17:00:13 +00:00
checks (https://github.com/fmtlib/fmt/issues/2640,
https://github.com/fmtlib/fmt/pull/2649). For example
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2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/ohGbbvonv)):
```c++
#include <fmt/format.h>
int main() {
using namespace fmt::literals;
fmt::print("{answer:s}", "answer"_a=42);
}
```
gives a compile-time error on compilers with C++20 `consteval` and
non-type template parameter support (gcc 10+) because `s` is not a
valid format specifier for an integer.
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @alexezeder.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Implemented escaping of string range elements. For example
([godbolt](https://godbolt.org/z/rKvM1vKf3)):
```c++
#include <fmt/ranges.h>
#include <vector>
int main() {
fmt::print("{}", std::vector<std::string>{"\naan"});
}
```
is now printed as:
["\naan"]
instead of:
["
aan"]
- Added an experimental `?` specifier for escaping strings.
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2674). Thanks @BRevzin.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Switched to JSON-like representation of maps and sets for
consistency with Python\'s `str.format`. For example
([godbolt](https://godbolt.org/z/seKjoY9W5)):
```c++
#include <fmt/ranges.h>
#include <map>
int main() {
fmt::print("{}", std::map<std::string, int>{{"answer", 42}});
}
```
is now printed as:
{"answer": 42}
- Extended `fmt::join` to support C++20-only ranges
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2549). Thanks @BRevzin.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Optimized handling of non-const-iterable ranges and implemented
initial support for non-const-formattable types.
- Disabled implicit conversions of scoped enums to integers that was
accidentally introduced in earlier versions
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1841).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Deprecated implicit conversion of `[const] signed char*` and
`[const] unsigned char*` to C strings.
- Deprecated `_format`, a legacy UDL-based format API
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2646). Thanks @alexezeder.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Marked `format`, `formatted_size` and `to_string` as `[[nodiscard]]`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2612). @0x8000-0000.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added missing diagnostic when trying to format function and member
pointers as well as objects convertible to pointers which is
explicitly disallowed
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2598,
https://github.com/fmtlib/fmt/pull/2609,
https://github.com/fmtlib/fmt/pull/2610). Thanks @AlexGuteniev.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Optimized writing to a contiguous buffer with `format_to_n`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2489). Thanks @Roman-Koshelev.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Optimized writing to non-`char` buffers
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2477). Thanks @Roman-Koshelev.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Decimal point is now localized when using the `L` specifier.
- Improved floating point formatter implementation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2498,
https://github.com/fmtlib/fmt/pull/2499). Thanks @Roman-Koshelev.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of very large precision in fixed format
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2616).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made a table of cached powers used in FP formatting static
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2509). Thanks @jk-jeon.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Resolved a lookup ambiguity with C++20 format-related functions due
Simplify URLs
2023-09-04 17:00:13 +00:00
to ADL (https://github.com/fmtlib/fmt/issues/2639,
https://github.com/fmtlib/fmt/pull/2641). Thanks @mkurdej.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Removed unnecessary inline namespace qualification
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2642,
https://github.com/fmtlib/fmt/pull/2643). Thanks @mkurdej.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Implemented argument forwarding in `format_to_n`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2462,
https://github.com/fmtlib/fmt/pull/2463). Thanks @owent.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of implicit conversions in `fmt::to_string` and
format string compilation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2565).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Changed the default access mode of files created by
`fmt::output_file` to `-rw-r--r--` for consistency with `fopen`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2530).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Make `fmt::ostream::flush` public
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2435).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved C++14/17 attribute detection
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2615). Thanks @AlexGuteniev.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved `consteval` detection for MSVC
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2559). Thanks @DanielaE.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved documentation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2406,
https://github.com/fmtlib/fmt/pull/2446,
https://github.com/fmtlib/fmt/issues/2493,
https://github.com/fmtlib/fmt/issues/2513,
https://github.com/fmtlib/fmt/pull/2515,
https://github.com/fmtlib/fmt/issues/2522,
https://github.com/fmtlib/fmt/pull/2562,
https://github.com/fmtlib/fmt/pull/2575,
https://github.com/fmtlib/fmt/pull/2606,
https://github.com/fmtlib/fmt/pull/2620,
https://github.com/fmtlib/fmt/issues/2676).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @sobolevn, @UnePierre, @zhsj, @phprus, @ericcurtin and @Lounarok.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved fuzzers and added a fuzzer for chrono timepoint formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2461,
https://github.com/fmtlib/fmt/pull/2469). @pauldreik,
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added the `FMT_SYSTEM_HEADERS` CMake option setting which marks
{fmt}\'s headers as system. It can be used to suppress warnings
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2644,
https://github.com/fmtlib/fmt/pull/2651). Thanks @alexezeder.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added the Bazel build system support
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2505,
https://github.com/fmtlib/fmt/pull/2516). Thanks @Vertexwahn.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved build configuration and tests
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2437,
https://github.com/fmtlib/fmt/pull/2558,
https://github.com/fmtlib/fmt/pull/2648,
https://github.com/fmtlib/fmt/pull/2650,
https://github.com/fmtlib/fmt/pull/2663,
https://github.com/fmtlib/fmt/pull/2677).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @DanielaE, @alexezeder and @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed various warnings and compilation issues
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2353,
https://github.com/fmtlib/fmt/pull/2356,
https://github.com/fmtlib/fmt/pull/2399,
https://github.com/fmtlib/fmt/issues/2408,
https://github.com/fmtlib/fmt/pull/2414,
https://github.com/fmtlib/fmt/pull/2427,
https://github.com/fmtlib/fmt/pull/2432,
https://github.com/fmtlib/fmt/pull/2442,
https://github.com/fmtlib/fmt/pull/2434,
https://github.com/fmtlib/fmt/issues/2439,
https://github.com/fmtlib/fmt/pull/2447,
https://github.com/fmtlib/fmt/pull/2450,
https://github.com/fmtlib/fmt/issues/2455,
https://github.com/fmtlib/fmt/issues/2465,
https://github.com/fmtlib/fmt/issues/2472,
https://github.com/fmtlib/fmt/issues/2474,
https://github.com/fmtlib/fmt/pull/2476,
https://github.com/fmtlib/fmt/issues/2478,
https://github.com/fmtlib/fmt/issues/2479,
https://github.com/fmtlib/fmt/issues/2481,
https://github.com/fmtlib/fmt/pull/2482,
https://github.com/fmtlib/fmt/pull/2483,
https://github.com/fmtlib/fmt/issues/2490,
https://github.com/fmtlib/fmt/pull/2491,
https://github.com/fmtlib/fmt/pull/2510,
https://github.com/fmtlib/fmt/pull/2518,
https://github.com/fmtlib/fmt/issues/2528,
https://github.com/fmtlib/fmt/pull/2529,
https://github.com/fmtlib/fmt/pull/2539,
https://github.com/fmtlib/fmt/issues/2540,
https://github.com/fmtlib/fmt/pull/2545,
https://github.com/fmtlib/fmt/pull/2555,
https://github.com/fmtlib/fmt/issues/2557,
https://github.com/fmtlib/fmt/issues/2570,
https://github.com/fmtlib/fmt/pull/2573,
https://github.com/fmtlib/fmt/pull/2582,
https://github.com/fmtlib/fmt/issues/2605,
https://github.com/fmtlib/fmt/pull/2611,
https://github.com/fmtlib/fmt/pull/2647,
https://github.com/fmtlib/fmt/issues/2627,
https://github.com/fmtlib/fmt/pull/2630,
https://github.com/fmtlib/fmt/issues/2635,
https://github.com/fmtlib/fmt/issues/2638,
https://github.com/fmtlib/fmt/issues/2653,
https://github.com/fmtlib/fmt/issues/2654,
https://github.com/fmtlib/fmt/issues/2661,
https://github.com/fmtlib/fmt/pull/2664,
https://github.com/fmtlib/fmt/pull/2684).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @DanielaE, @mwinterb, @cdacamar, @TrebledJ, @bodomartin, @cquammen,
@white238, @mmarkeloff, @palacaze, @jcelerier, @mborn-adi, @BrukerJWD,
@spyridon97, @phprus, @oliverlee, @joshessman-llnl, @akohlmey, @timkalu,
@olupton, @Acretock, @alexezeder, @andrewcorrigan, @lucpelletier and
@HazardyKnusperkeks.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 8.0.1 - 2021-07-02
- Fixed the version number in the inline namespace
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2374).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added a missing presentation type check for `std::string`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2402).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed a linkage error when mixing code built with clang and gcc
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2377).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed documentation issues
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2396,
https://github.com/fmtlib/fmt/issues/2403,
https://github.com/fmtlib/fmt/issues/2406). Thanks @mkurdej.
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2023-09-04 14:07:24 +00:00
- Removed dead code in FP formatter (
Simplify URLs
2023-09-04 17:00:13 +00:00
https://github.com/fmtlib/fmt/pull/2398). Thanks @javierhonduco.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed various warnings and compilation issues
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2351,
https://github.com/fmtlib/fmt/issues/2359,
https://github.com/fmtlib/fmt/pull/2365,
https://github.com/fmtlib/fmt/issues/2368,
https://github.com/fmtlib/fmt/pull/2370,
https://github.com/fmtlib/fmt/pull/2376,
https://github.com/fmtlib/fmt/pull/2381,
https://github.com/fmtlib/fmt/pull/2382,
https://github.com/fmtlib/fmt/issues/2386,
https://github.com/fmtlib/fmt/pull/2389,
https://github.com/fmtlib/fmt/pull/2395,
https://github.com/fmtlib/fmt/pull/2397,
https://github.com/fmtlib/fmt/issues/2400,
https://github.com/fmtlib/fmt/issues/2401,
https://github.com/fmtlib/fmt/pull/2407).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @zx2c4, @AidanSun05, @mattiasljungstrom, @joemmett, @erengy,
@patlkli, @gsjaardema and @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 8.0.0 - 2021-06-21
- Enabled compile-time format string checks by default. For example
([godbolt](https://godbolt.org/z/sMxcohGjz)):
```c++
#include <fmt/core.h>
int main() {
fmt::print("{:d}", "I am not a number");
}
```
gives a compile-time error on compilers with C++20 `consteval`
support (gcc 10+, clang 11+) because `d` is not a valid format
specifier for a string.
To pass a runtime string wrap it in `fmt::runtime`:
```c++
fmt::print(fmt::runtime("{:d}"), "I am not a number");
```
- Added compile-time formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2019,
https://github.com/fmtlib/fmt/pull/2044,
https://github.com/fmtlib/fmt/pull/2056,
https://github.com/fmtlib/fmt/pull/2072,
https://github.com/fmtlib/fmt/pull/2075,
https://github.com/fmtlib/fmt/issues/2078,
https://github.com/fmtlib/fmt/pull/2129,
https://github.com/fmtlib/fmt/pull/2326). For example
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/Mxx9d89jM)):
```c++
#include <fmt/compile.h>
consteval auto compile_time_itoa(int value) -> std::array<char, 10> {
auto result = std::array<char, 10>();
fmt::format_to(result.data(), FMT_COMPILE("{}"), value);
return result;
}
constexpr auto answer = compile_time_itoa(42);
```
Most of the formatting functionality is available at compile time
with a notable exception of floating-point numbers and pointers.
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @alexezeder.
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2023-09-04 14:07:24 +00:00
- Optimized handling of format specifiers during format string
compilation. For example, hexadecimal formatting (`"{:x}"`) is now
3-7x faster than before when using `format_to` with format string
compilation and a stack-allocated buffer
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1944).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
Before (7.1.3):
----------------------------------------------------------------------------
Benchmark Time CPU Iterations
----------------------------------------------------------------------------
FMTCompileOld/0 15.5 ns 15.5 ns 43302898
FMTCompileOld/42 16.6 ns 16.6 ns 43278267
FMTCompileOld/273123 18.7 ns 18.6 ns 37035861
FMTCompileOld/9223372036854775807 19.4 ns 19.4 ns 35243000
----------------------------------------------------------------------------
After (8.x):
----------------------------------------------------------------------------
Benchmark Time CPU Iterations
----------------------------------------------------------------------------
FMTCompileNew/0 1.99 ns 1.99 ns 360523686
FMTCompileNew/42 2.33 ns 2.33 ns 279865664
FMTCompileNew/273123 3.72 ns 3.71 ns 190230315
FMTCompileNew/9223372036854775807 5.28 ns 5.26 ns 130711631
----------------------------------------------------------------------------
It is even faster than `std::to_chars` from libc++ compiled with
clang on macOS:
----------------------------------------------------------------------------
Benchmark Time CPU Iterations
----------------------------------------------------------------------------
ToChars/0 4.42 ns 4.41 ns 160196630
ToChars/42 5.00 ns 4.98 ns 140735201
ToChars/273123 7.26 ns 7.24 ns 95784130
ToChars/9223372036854775807 8.77 ns 8.75 ns 75872534
----------------------------------------------------------------------------
In other cases, especially involving `std::string` construction, the
speed up is usually lower because handling format specifiers takes a
smaller fraction of the total time.
- Added the `_cf` user-defined literal to represent a compiled format
string. It can be used instead of the `FMT_COMPILE` macro
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2043,
https://github.com/fmtlib/fmt/pull/2242):
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2023-09-04 14:07:24 +00:00
```c++
#include <fmt/compile.h>
using namespace fmt::literals;
auto s = fmt::format(FMT_COMPILE("{}"), 42); // 🙁 not modern
auto s = fmt::format("{}"_cf, 42); // 🙂 modern as hell
```
It requires compiler support for class types in non-type template
Cleanup changelog
2023-09-04 16:05:07 +00:00
parameters (a C++20 feature) which is available in GCC 9.3+.
Thanks @alexezeder.
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2023-09-04 14:07:24 +00:00
- Format string compilation now requires `format` functions of
`formatter` specializations for user-defined types to be `const`:
```c++
template <> struct fmt::formatter<my_type>: formatter<string_view> {
template <typename FormatContext>
auto format(my_type obj, FormatContext& ctx) const { // Note const here.
// ...
}
};
```
- Added UDL-based named argument support to format string compilation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2243,
https://github.com/fmtlib/fmt/pull/2281). For example:
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
#include <fmt/compile.h>
using namespace fmt::literals;
auto s = fmt::format(FMT_COMPILE("{answer}"), "answer"_a = 42);
```
Here the argument named \"answer\" is resolved at compile time with
Cleanup changelog
2023-09-04 16:05:07 +00:00
no runtime overhead. Thanks @alexezeder.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added format string compilation support to `fmt::print`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2280,
https://github.com/fmtlib/fmt/pull/2304). Thanks @alexezeder.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added initial support for compiling {fmt} as a C++20 module
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2235,
https://github.com/fmtlib/fmt/pull/2240,
https://github.com/fmtlib/fmt/pull/2260,
https://github.com/fmtlib/fmt/pull/2282,
https://github.com/fmtlib/fmt/pull/2283,
https://github.com/fmtlib/fmt/pull/2288,
https://github.com/fmtlib/fmt/pull/2298,
https://github.com/fmtlib/fmt/pull/2306,
https://github.com/fmtlib/fmt/pull/2307,
https://github.com/fmtlib/fmt/pull/2309,
https://github.com/fmtlib/fmt/pull/2318,
https://github.com/fmtlib/fmt/pull/2324,
https://github.com/fmtlib/fmt/pull/2332,
https://github.com/fmtlib/fmt/pull/2340). Thanks @DanielaE.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made symbols private by default reducing shared library size
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2301). For example
Cleanup changelog
2023-09-04 16:05:07 +00:00
there was a \~15% reported reduction on one platform. Thanks @sergiud.
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2023-09-04 14:07:24 +00:00
- Optimized includes making the result of preprocessing `fmt/format.h`
\~20% smaller with libstdc++/C++20 and slightly improving build
Simplify URLs
2023-09-04 17:00:13 +00:00
times (https://github.com/fmtlib/fmt/issues/1998).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support of ranges with non-const `begin` / `end`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1953). Thanks @kitegi.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support of `std::byte` and other formattable types to
Simplify URLs
2023-09-04 17:00:13 +00:00
`fmt::join` (https://github.com/fmtlib/fmt/issues/1981,
https://github.com/fmtlib/fmt/issues/2040,
https://github.com/fmtlib/fmt/pull/2050,
https://github.com/fmtlib/fmt/issues/2262). For example:
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
#include <fmt/format.h>
#include <cstddef>
#include <vector>
int main() {
auto bytes = std::vector{std::byte(4), std::byte(2)};
fmt::print("{}", fmt::join(bytes, ""));
}
```
prints \"42\".
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @kamibo.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Implemented the default format for `std::chrono::system_clock`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2319,
https://github.com/fmtlib/fmt/pull/2345). For example:
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
#include <fmt/chrono.h>
int main() {
fmt::print("{}", std::chrono::system_clock::now());
}
```
prints \"2021-06-18 15:22:00\" (the output depends on the current
Cleanup changelog
2023-09-04 16:05:07 +00:00
date and time). Thanks @sunmy2019.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made more chrono specifiers locale independent by default. Use the
`'L'` specifier to get localized formatting. For example:
```c++
#include <fmt/chrono.h>
int main() {
std::locale::global(std::locale("ru_RU.UTF-8"));
auto monday = std::chrono::weekday(1);
fmt::print("{}\n", monday); // prints "Mon"
fmt::print("{:L}\n", monday); // prints "пн"
}
```
- Improved locale handling in chrono formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2337,
https://github.com/fmtlib/fmt/pull/2349,
https://github.com/fmtlib/fmt/pull/2350). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Deprecated `fmt/locale.h` moving the formatting functions that take
a locale to `fmt/format.h` (`char`) and `fmt/xchar` (other
overloads). This doesn\'t introduce a dependency on `<locale>` so
there is virtually no compile time effect.
- Deprecated an undocumented `format_to` overload that takes
`basic_memory_buffer`.
- Made parameter order in `vformat_to` consistent with `format_to`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2327).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support for time points with arbitrary durations
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2208). For example:
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
#include <fmt/chrono.h>
int main() {
using tp = std::chrono::time_point<
std::chrono::system_clock, std::chrono::seconds>;
fmt::print("{:%S}", tp(std::chrono::seconds(42)));
}
```
prints \"42\".
- Formatting floating-point numbers no longer produces trailing zeros
by default for consistency with `std::format`. For example:
```c++
#include <fmt/core.h>
int main() {
fmt::print("{0:.3}", 1.1);
}
```
prints \"1.1\". Use the `'#'` specifier to keep trailing zeros.
- Dropped a limit on the number of elements in a range and replaced
`{}` with `[]` as range delimiters for consistency with Python\'s
`str.format`.
- The `'L'` specifier for locale-specific numeric formatting can now
be combined with presentation specifiers as in `std::format`. For
example:
```c++
#include <fmt/core.h>
#include <locale>
int main() {
std::locale::global(std::locale("fr_FR.UTF-8"));
fmt::print("{0:.2Lf}", 0.42);
}
```
prints \"0,42\". The deprecated `'n'` specifier has been removed.
- Made the `0` specifier ignored for infinity and NaN
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2305,
https://github.com/fmtlib/fmt/pull/2310). Thanks @Liedtke.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made the hexfloat formatting use the right alignment by default
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2308,
https://github.com/fmtlib/fmt/pull/2317). Thanks @Liedtke.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Removed the deprecated numeric alignment (`'='`). Use the `'0'`
specifier instead.
- Removed the deprecated `fmt/posix.h` header that has been replaced
with `fmt/os.h`.
- Removed the deprecated `format_to_n_context`, `format_to_n_args` and
`make_format_to_n_args`. They have been replaced with
`format_context`, `` format_args` and ``make_format_args\`\`
respectively.
- Moved `wchar_t`-specific functions and types to `fmt/xchar.h`. You
can define `FMT_DEPRECATED_INCLUDE_XCHAR` to automatically include
`fmt/xchar.h` from `fmt/format.h` but this will be disabled in the
next major release.
- Fixed handling of the `'+'` specifier in localized formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2133).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support for the `'s'` format specifier that gives textual
representation of `bool`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2094,
https://github.com/fmtlib/fmt/pull/2109). For example:
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
#include <fmt/core.h>
int main() {
fmt::print("{:s}", true);
}
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
prints \"true\". Thanks @powercoderlol.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made `fmt::ptr` work with function pointers
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2131). For example:
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
#include <fmt/format.h>
int main() {
fmt::print("My main: {}\n", fmt::ptr(main));
}
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @mikecrowe.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- The undocumented support for specializing `formatter` for pointer
types has been removed.
- Fixed `fmt::formatted_size` with format string compilation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2141,
https://github.com/fmtlib/fmt/pull/2161). Thanks @alexezeder.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of empty format strings during format string
Simplify URLs
2023-09-04 17:00:13 +00:00
compilation (https://github.com/fmtlib/fmt/issues/2042):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
auto s = fmt::format(FMT_COMPILE(""));
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @alexezeder.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of enums in `fmt::to_string`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2036).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved width computation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2033,
https://github.com/fmtlib/fmt/issues/2091). For example:
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
#include <fmt/core.h>
int main() {
fmt::print("{:-<10}{}\n", "你好", "世界");
fmt::print("{:-<10}{}\n", "hello", "world");
}
```
prints
Simplify URLs
2023-09-04 17:00:13 +00:00
![](https://user-images.githubusercontent.com/576385/119840373-cea3ca80-beb9-11eb-91e0-54266c48e181.png)
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
on a modern terminal.
- The experimental fast output stream (`fmt::ostream`) is now
truncated by default for consistency with `fopen`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2018). For example:
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
#include <fmt/os.h>
int main() {
fmt::ostream out1 = fmt::output_file("guide");
out1.print("Zaphod");
out1.close();
fmt::ostream out2 = fmt::output_file("guide");
out2.print("Ford");
}
```
writes \"Ford\" to the file \"guide\". To preserve the old file
content if any pass `fmt::file::WRONLY | fmt::file::CREATE` flags to
`fmt::output_file`.
- Fixed moving of `fmt::ostream` that holds buffered data
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2197,
https://github.com/fmtlib/fmt/pull/2198). Thanks @vtta.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Replaced the `fmt::system_error` exception with a function of the
same name that constructs `std::system_error`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2266).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Replaced the `fmt::windows_error` exception with a function of the
same name that constructs `std::system_error` with the category
returned by `fmt::system_category()`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2274,
https://github.com/fmtlib/fmt/pull/2275). The latter is
Cleanup changelog
2023-09-04 16:05:07 +00:00
similar to `std::sytem_category` but correctly handles UTF-8.
Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Replaced `fmt::error_code` with `std::error_code` and made it
Simplify URLs
2023-09-04 17:00:13 +00:00
formattable (https://github.com/fmtlib/fmt/issues/2269,
https://github.com/fmtlib/fmt/pull/2270,
https://github.com/fmtlib/fmt/pull/2273). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added speech synthesis support
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2206).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made `format_to` work with a memory buffer that has a custom
Simplify URLs
2023-09-04 17:00:13 +00:00
allocator (https://github.com/fmtlib/fmt/pull/2300).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @voxmea.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added `Allocator::max_size` support to `basic_memory_buffer`.
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1960). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added wide string support to `fmt::join`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2236). Thanks @crbrz.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made iterators passed to `formatter` specializations via a format
context satisfy C++20 `std::output_iterator` requirements
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2156,
https://github.com/fmtlib/fmt/pull/2158,
https://github.com/fmtlib/fmt/issues/2195,
https://github.com/fmtlib/fmt/pull/2204). Thanks @randomnetcat.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Optimized the `printf` implementation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1982,
https://github.com/fmtlib/fmt/pull/1984,
https://github.com/fmtlib/fmt/pull/2016,
https://github.com/fmtlib/fmt/pull/2164).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @rimathia and @moiwi.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved detection of `constexpr` `char_traits`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2246,
https://github.com/fmtlib/fmt/pull/2257). Thanks @phprus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed writing to `stdout` when it is redirected to `NUL` on Windows
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2080).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed exception propagation from iterators
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2097).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved `strftime` error handling
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2238,
https://github.com/fmtlib/fmt/pull/2244). Thanks @yumeyao.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Stopped using deprecated GCC UDL template extension.
- Added `fmt/args.h` to the install target
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2096).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Error messages are now passed to assert when exceptions are disabled
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2145). Thanks @NobodyXu.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added the `FMT_MASTER_PROJECT` CMake option to control build and
install targets when {fmt} is included via `add_subdirectory`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2098,
https://github.com/fmtlib/fmt/pull/2100).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @randomizedthinking.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved build configuration
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/2026,
https://github.com/fmtlib/fmt/pull/2122).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @luncliff and @ibaned.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed various warnings and compilation issues
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1947,
https://github.com/fmtlib/fmt/pull/1959,
https://github.com/fmtlib/fmt/pull/1963,
https://github.com/fmtlib/fmt/pull/1965,
https://github.com/fmtlib/fmt/issues/1966,
https://github.com/fmtlib/fmt/pull/1974,
https://github.com/fmtlib/fmt/pull/1975,
https://github.com/fmtlib/fmt/pull/1990,
https://github.com/fmtlib/fmt/issues/2000,
https://github.com/fmtlib/fmt/pull/2001,
https://github.com/fmtlib/fmt/issues/2002,
https://github.com/fmtlib/fmt/issues/2004,
https://github.com/fmtlib/fmt/pull/2006,
https://github.com/fmtlib/fmt/pull/2009,
https://github.com/fmtlib/fmt/pull/2010,
https://github.com/fmtlib/fmt/issues/2038,
https://github.com/fmtlib/fmt/issues/2039,
https://github.com/fmtlib/fmt/issues/2047,
https://github.com/fmtlib/fmt/pull/2053,
https://github.com/fmtlib/fmt/issues/2059,
https://github.com/fmtlib/fmt/pull/2065,
https://github.com/fmtlib/fmt/pull/2067,
https://github.com/fmtlib/fmt/pull/2068,
https://github.com/fmtlib/fmt/pull/2073,
https://github.com/fmtlib/fmt/issues/2103,
https://github.com/fmtlib/fmt/issues/2105,
https://github.com/fmtlib/fmt/pull/2106,
https://github.com/fmtlib/fmt/pull/2107,
https://github.com/fmtlib/fmt/issues/2116,
https://github.com/fmtlib/fmt/pull/2117,
https://github.com/fmtlib/fmt/issues/2118,
https://github.com/fmtlib/fmt/pull/2119,
https://github.com/fmtlib/fmt/issues/2127,
https://github.com/fmtlib/fmt/pull/2128,
https://github.com/fmtlib/fmt/issues/2140,
https://github.com/fmtlib/fmt/issues/2142,
https://github.com/fmtlib/fmt/pull/2143,
https://github.com/fmtlib/fmt/pull/2144,
https://github.com/fmtlib/fmt/issues/2147,
https://github.com/fmtlib/fmt/issues/2148,
https://github.com/fmtlib/fmt/issues/2149,
https://github.com/fmtlib/fmt/pull/2152,
https://github.com/fmtlib/fmt/pull/2160,
https://github.com/fmtlib/fmt/issues/2170,
https://github.com/fmtlib/fmt/issues/2175,
https://github.com/fmtlib/fmt/issues/2176,
https://github.com/fmtlib/fmt/pull/2177,
https://github.com/fmtlib/fmt/issues/2178,
https://github.com/fmtlib/fmt/pull/2179,
https://github.com/fmtlib/fmt/issues/2180,
https://github.com/fmtlib/fmt/issues/2181,
https://github.com/fmtlib/fmt/pull/2183,
https://github.com/fmtlib/fmt/issues/2184,
https://github.com/fmtlib/fmt/issues/2185,
https://github.com/fmtlib/fmt/pull/2186,
https://github.com/fmtlib/fmt/pull/2187,
https://github.com/fmtlib/fmt/pull/2190,
https://github.com/fmtlib/fmt/pull/2192,
https://github.com/fmtlib/fmt/pull/2194,
https://github.com/fmtlib/fmt/pull/2205,
https://github.com/fmtlib/fmt/issues/2210,
https://github.com/fmtlib/fmt/pull/2211,
https://github.com/fmtlib/fmt/pull/2215,
https://github.com/fmtlib/fmt/pull/2216,
https://github.com/fmtlib/fmt/pull/2218,
https://github.com/fmtlib/fmt/pull/2220,
https://github.com/fmtlib/fmt/issues/2228,
https://github.com/fmtlib/fmt/pull/2229,
https://github.com/fmtlib/fmt/pull/2230,
https://github.com/fmtlib/fmt/issues/2233,
https://github.com/fmtlib/fmt/pull/2239,
https://github.com/fmtlib/fmt/issues/2248,
https://github.com/fmtlib/fmt/issues/2252,
https://github.com/fmtlib/fmt/pull/2253,
https://github.com/fmtlib/fmt/pull/2255,
https://github.com/fmtlib/fmt/issues/2261,
https://github.com/fmtlib/fmt/issues/2278,
https://github.com/fmtlib/fmt/issues/2284,
https://github.com/fmtlib/fmt/pull/2287,
https://github.com/fmtlib/fmt/pull/2289,
https://github.com/fmtlib/fmt/pull/2290,
https://github.com/fmtlib/fmt/pull/2293,
https://github.com/fmtlib/fmt/issues/2295,
https://github.com/fmtlib/fmt/pull/2296,
https://github.com/fmtlib/fmt/pull/2297,
https://github.com/fmtlib/fmt/issues/2311,
https://github.com/fmtlib/fmt/pull/2313,
https://github.com/fmtlib/fmt/pull/2315,
https://github.com/fmtlib/fmt/issues/2320,
https://github.com/fmtlib/fmt/pull/2321,
https://github.com/fmtlib/fmt/pull/2323,
https://github.com/fmtlib/fmt/issues/2328,
https://github.com/fmtlib/fmt/pull/2329,
https://github.com/fmtlib/fmt/pull/2333,
https://github.com/fmtlib/fmt/pull/2338,
https://github.com/fmtlib/fmt/pull/2341).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @darklukee, @fagg, @killerbot242, @jgopel, @yeswalrus, @Finkman,
@HazardyKnusperkeks, @dkavolis, @concatime, @chronoxor, @summivox, @yNeo,
@Apache-HB, @alexezeder, @toojays, @Brainy0207, @vadz, @imsherlock, @phprus,
@white238, @yafshar, @BillyDonahue, @jstaahl, @denchat, @DanielaE,
@ilyakurdyukov, @ilmai, @JessyDL, @sergiud, @mwinterb, @sven-herrmann,
@jmelas, @twoixter, @crbrz and @upsj.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved documentation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1986,
https://github.com/fmtlib/fmt/pull/2051,
https://github.com/fmtlib/fmt/issues/2057,
https://github.com/fmtlib/fmt/pull/2081,
https://github.com/fmtlib/fmt/issues/2084,
https://github.com/fmtlib/fmt/pull/2312).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @imba-tjd, @0x416c69 and @mordante.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Continuous integration and test improvements
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1969,
https://github.com/fmtlib/fmt/pull/1991,
https://github.com/fmtlib/fmt/pull/2020,
https://github.com/fmtlib/fmt/pull/2110,
https://github.com/fmtlib/fmt/pull/2114,
https://github.com/fmtlib/fmt/issues/2196,
https://github.com/fmtlib/fmt/pull/2217,
https://github.com/fmtlib/fmt/pull/2247,
https://github.com/fmtlib/fmt/pull/2256,
https://github.com/fmtlib/fmt/pull/2336,
https://github.com/fmtlib/fmt/pull/2346).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @jgopel, @alexezeder and @DanielaE.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 7.1.3 - 2020-11-24
- Fixed handling of buffer boundaries in `format_to_n`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1996,
https://github.com/fmtlib/fmt/issues/2029).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed linkage errors when linking with a shared library
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2011).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Reintroduced ostream support to range formatters
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2014).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Worked around an issue with mixing std versions in gcc
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/2017).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 7.1.2 - 2020-11-04
- Fixed floating point formatting with large precision
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1976).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 7.1.1 - 2020-11-01
- Fixed ABI compatibility with 7.0.x
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1961).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added the `FMT_ARM_ABI_COMPATIBILITY` macro to work around ABI
incompatibility between GCC and Clang on ARM
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1919).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Worked around a SFINAE bug in GCC 8
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1957).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed linkage errors when building with GCC\'s LTO
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1955).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed a compilation error when building without `__builtin_clz` or
Simplify URLs
2023-09-04 17:00:13 +00:00
equivalent (https://github.com/fmtlib/fmt/pull/1968).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @tohammer.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed a sign conversion warning
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1964). Thanks @OptoCloud.
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2023-09-04 14:07:24 +00:00
# 7.1.0 - 2020-10-25
- Switched from
[Grisu3](https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf)
to [Dragonbox](https://github.com/jk-jeon/dragonbox) for the default
floating-point formatting which gives the shortest decimal
representation with round-trip guarantee and correct rounding
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1882,
https://github.com/fmtlib/fmt/pull/1887,
https://github.com/fmtlib/fmt/pull/1894). This makes {fmt}
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2023-09-04 14:07:24 +00:00
up to 20-30x faster than common implementations of
`std::ostringstream` and `sprintf` on
[dtoa-benchmark](https://github.com/fmtlib/dtoa-benchmark) and
faster than double-conversion and Ryū:
Simplify URLs
2023-09-04 17:00:13 +00:00
![](https://user-images.githubusercontent.com/576385/95684665-11719600-0ba8-11eb-8e5b-972ff4e49428.png)
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2023-09-04 14:07:24 +00:00
It is possible to get even better performance at the cost of larger
binary size by compiling with the `FMT_USE_FULL_CACHE_DRAGONBOX`
macro set to 1.
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @jk-jeon.
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2023-09-04 14:07:24 +00:00
- Added an experimental unsynchronized file output API which, together
with [format string
compilation](https://fmt.dev/latest/api.html#compile-api), can give
[5-9 times speed up compared to
fprintf](https://www.zverovich.net/2020/08/04/optimal-file-buffer-size.html)
on common platforms ([godbolt](https://godbolt.org/z/nsTcG8)):
```c++
#include <fmt/os.h>
int main() {
auto f = fmt::output_file("guide");
f.print("The answer is {}.", 42);
}
```
- Added a formatter for `std::chrono::time_point<system_clock>`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1819,
https://github.com/fmtlib/fmt/pull/1837). For example
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/c4M6fh)):
```c++
#include <fmt/chrono.h>
int main() {
auto now = std::chrono::system_clock::now();
fmt::print("The time is {:%H:%M:%S}.\n", now);
}
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @adamburgess.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support for ranges with non-const `begin`/`end` to `fmt::join`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1784,
https://github.com/fmtlib/fmt/pull/1786). For example
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/jP63Tv)):
```c++
#include <fmt/ranges.h>
#include <range/v3/view/filter.hpp>
int main() {
using std::literals::string_literals::operator""s;
auto strs = std::array{"a"s, "bb"s, "ccc"s};
auto range = strs | ranges::views::filter(
[] (const std::string &x) { return x.size() != 2; }
);
fmt::print("{}\n", fmt::join(range, ""));
}
```
prints \"accc\".
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @tonyelewis.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added a `memory_buffer::append` overload that takes a range
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1806). Thanks @BRevzin.
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2023-09-04 14:07:24 +00:00
- Improved handling of single code units in `FMT_COMPILE`. For
example:
```c++
#include <fmt/compile.h>
char* f(char* buf) {
return fmt::format_to(buf, FMT_COMPILE("x{}"), 42);
}
```
compiles to just ([godbolt](https://godbolt.org/z/5vncz3)):
```asm
_Z1fPc:
movb $120, (%rdi)
xorl %edx, %edx
cmpl $42, _ZN3fmt2v76detail10basic_dataIvE23zero_or_powers_of_10_32E+8(%rip)
movl $3, %eax
seta %dl
subl %edx, %eax
movzwl _ZN3fmt2v76detail10basic_dataIvE6digitsE+84(%rip), %edx
cltq
addq %rdi, %rax
movw %dx, -2(%rax)
ret
```
Here a single `mov` instruction writes `'x'` (`$120`) to the output
buffer.
- Added dynamic width support to format string compilation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1809).
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2023-09-04 14:07:24 +00:00
- Improved error reporting for unformattable types: now you\'ll get
the type name directly in the error message instead of the note:
```c++
#include <fmt/core.h>
struct how_about_no {};
int main() {
fmt::print("{}", how_about_no());
}
```
Error ([godbolt](https://godbolt.org/z/GoxM4e)):
`fmt/core.h:1438:3: error: static_assert failed due to requirement 'fmt::v7::formattable<how_about_no>()' "Cannot format an argument. To make type T formattable provide a formatter<T> specialization: https://fmt.dev/latest/api.html#udt" ...`
- Added the
[make_args_checked](https://fmt.dev/7.1.0/api.html#argument-lists)
function template that allows you to write formatting functions with
compile-time format string checks and avoid binary code bloat
([godbolt](https://godbolt.org/z/PEf9qr)):
```c++
void vlog(const char* file, int line, fmt::string_view format,
fmt::format_args args) {
fmt::print("{}: {}: ", file, line);
fmt::vprint(format, args);
}
template <typename S, typename... Args>
void log(const char* file, int line, const S& format, Args&&... args) {
vlog(file, line, format,
fmt::make_args_checked<Args...>(format, args...));
}
#define MY_LOG(format, ...) \
log(__FILE__, __LINE__, FMT_STRING(format), __VA_ARGS__)
MY_LOG("invalid squishiness: {}", 42);
```
- Replaced `snprintf` fallback with a faster internal IEEE 754 `float`
and `double` formatter for arbitrary precision. For example
([godbolt](https://godbolt.org/z/dPhWvj)):
```c++
#include <fmt/core.h>
int main() {
fmt::print("{:.500}\n", 4.9406564584124654E-324);
}
```
prints
`4.9406564584124654417656879286822137236505980261432476442558568250067550727020875186529983636163599237979656469544571773092665671035593979639877479601078187812630071319031140452784581716784898210368871863605699873072305000638740915356498438731247339727316961514003171538539807412623856559117102665855668676818703956031062493194527159149245532930545654440112748012970999954193198940908041656332452475714786901472678015935523861155013480352649347201937902681071074917033322268447533357208324319360923829e-324`.
- Made `format_to_n` and `formatted_size` part of the [core
API](https://fmt.dev/latest/api.html#core-api)
([godbolt](https://godbolt.org/z/sPjY1K)):
```c++
#include <fmt/core.h>
int main() {
char buffer[10];
auto result = fmt::format_to_n(buffer, sizeof(buffer), "{}", 42);
}
```
- Added `fmt::format_to_n` overload with format string compilation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1764,
https://github.com/fmtlib/fmt/pull/1767,
https://github.com/fmtlib/fmt/pull/1869). For example
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/93h86q)):
```c++
#include <fmt/compile.h>
int main() {
char buffer[8];
fmt::format_to_n(buffer, sizeof(buffer), FMT_COMPILE("{}"), 42);
}
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @Kurkin and @alexezeder.
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2023-09-04 14:07:24 +00:00
- Added `fmt::format_to` overload that take `text_style`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1593,
https://github.com/fmtlib/fmt/issues/1842,
https://github.com/fmtlib/fmt/pull/1843). For example
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
([godbolt](https://godbolt.org/z/91153r)):
```c++
#include <fmt/color.h>
int main() {
std::string out;
fmt::format_to(std::back_inserter(out),
fmt::emphasis::bold | fg(fmt::color::red),
"The answer is {}.", 42);
}
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @Naios.
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2023-09-04 14:07:24 +00:00
- Made the `'#'` specifier emit trailing zeros in addition to the
Simplify URLs
2023-09-04 17:00:13 +00:00
decimal point (https://github.com/fmtlib/fmt/issues/1797).
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2023-09-04 14:07:24 +00:00
For example ([godbolt](https://godbolt.org/z/bhdcW9)):
```c++
#include <fmt/core.h>
int main() {
fmt::print("{:#.2g}", 0.5);
}
```
prints `0.50`.
- Changed the default floating point format to not include `.0` for
consistency with `std::format` and `std::to_chars`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1893,
https://github.com/fmtlib/fmt/issues/1943). It is possible
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
to get the decimal point and trailing zero with the `#` specifier.
- Fixed an issue with floating-point formatting that could result in
addition of a non-significant trailing zero in rare cases e.g.
`1.00e-34` instead of `1.0e-34`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1873,
https://github.com/fmtlib/fmt/issues/1917).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made `fmt::to_string` fallback on `ostream` insertion operator if
the `formatter` specialization is not provided
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1815,
https://github.com/fmtlib/fmt/pull/1829). Thanks @alexezeder.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support for the append mode to the experimental file API and
improved `fcntl.h` detection.
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1847,
https://github.com/fmtlib/fmt/pull/1848). Thanks @t-wiser.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of types that have both an implicit conversion
operator and an overloaded `ostream` insertion operator
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1766).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed a slicing issue in an internal iterator type
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1822). Thanks @BRevzin.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed an issue in locale-specific integer formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1927).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of exotic code unit types
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1870,
https://github.com/fmtlib/fmt/issues/1932).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved `FMT_ALWAYS_INLINE`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1878). Thanks @jk-jeon.
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2023-09-04 14:07:24 +00:00
- Removed dependency on `windows.h`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1900). Thanks @bernd5.
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2023-09-04 14:07:24 +00:00
- Optimized counting of decimal digits on MSVC
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1890). Thanks @mwinterb.
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2023-09-04 14:07:24 +00:00
- Improved documentation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1772,
https://github.com/fmtlib/fmt/pull/1775,
https://github.com/fmtlib/fmt/pull/1792,
https://github.com/fmtlib/fmt/pull/1838,
https://github.com/fmtlib/fmt/pull/1888,
https://github.com/fmtlib/fmt/pull/1918,
https://github.com/fmtlib/fmt/pull/1939).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @leolchat, @pepsiman, @Klaim, @ravijanjam, @francesco-st and @udnaan.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added the `FMT_REDUCE_INT_INSTANTIATIONS` CMake option that reduces
the binary code size at the cost of some integer formatting
performance. This can be useful for extremely memory-constrained
embedded systems
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1778,
https://github.com/fmtlib/fmt/pull/1781). Thanks @kammce.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added the `FMT_USE_INLINE_NAMESPACES` macro to control usage of
inline namespaces
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1945). Thanks @darklukee.
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2023-09-04 14:07:24 +00:00
- Improved build configuration
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1760,
https://github.com/fmtlib/fmt/pull/1770,
https://github.com/fmtlib/fmt/issues/1779,
https://github.com/fmtlib/fmt/pull/1783,
https://github.com/fmtlib/fmt/pull/1823).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @dvetutnev, @xvitaly, @tambry, @medithe and @martinwuehrer.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed various warnings and compilation issues
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1790,
https://github.com/fmtlib/fmt/pull/1802,
https://github.com/fmtlib/fmt/pull/1808,
https://github.com/fmtlib/fmt/issues/1810,
https://github.com/fmtlib/fmt/issues/1811,
https://github.com/fmtlib/fmt/pull/1812,
https://github.com/fmtlib/fmt/pull/1814,
https://github.com/fmtlib/fmt/pull/1816,
https://github.com/fmtlib/fmt/pull/1817,
https://github.com/fmtlib/fmt/pull/1818,
https://github.com/fmtlib/fmt/issues/1825,
https://github.com/fmtlib/fmt/pull/1836,
https://github.com/fmtlib/fmt/pull/1855,
https://github.com/fmtlib/fmt/pull/1856,
https://github.com/fmtlib/fmt/pull/1860,
https://github.com/fmtlib/fmt/pull/1877,
https://github.com/fmtlib/fmt/pull/1879,
https://github.com/fmtlib/fmt/pull/1880,
https://github.com/fmtlib/fmt/issues/1896,
https://github.com/fmtlib/fmt/pull/1897,
https://github.com/fmtlib/fmt/pull/1898,
https://github.com/fmtlib/fmt/issues/1904,
https://github.com/fmtlib/fmt/pull/1908,
https://github.com/fmtlib/fmt/issues/1911,
https://github.com/fmtlib/fmt/issues/1912,
https://github.com/fmtlib/fmt/issues/1928,
https://github.com/fmtlib/fmt/pull/1929,
https://github.com/fmtlib/fmt/issues/1935,
https://github.com/fmtlib/fmt/pull/1937,
https://github.com/fmtlib/fmt/pull/1942,
https://github.com/fmtlib/fmt/issues/1949).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @TheQwertiest, @medithe, @martinwuehrer, @n16h7hunt3r, @Othereum,
@gsjaardema, @AlexanderLanin, @gcerretani, @chronoxor, @noizefloor,
@akohlmey, @jk-jeon, @rimathia, @rglarix, @moiwi, @heckad, @MarcDirven.
@BartSiwek and @darklukee.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 7.0.3 - 2020-08-06
- Worked around broken `numeric_limits` for 128-bit integers
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1787).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added error reporting on missing named arguments
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1796).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Stopped using 128-bit integers with clang-cl
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1800). Thanks @Kingcom.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed issues in locale-specific integer formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1782,
https://github.com/fmtlib/fmt/issues/1801).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 7.0.2 - 2020-07-29
- Worked around broken `numeric_limits` for 128-bit integers
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1725).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed compatibility with CMake 3.4
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1779).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of digit separators in locale-specific formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1782).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 7.0.1 - 2020-07-07
- Updated the inline version namespace name.
- Worked around a gcc bug in mangling of alias templates
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1753).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed a linkage error on Windows
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1757). Thanks @Kurkin.
Convert changelog to markdown for compatibility with release notes
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- Fixed minor issues with the documentation.
# 7.0.0 - 2020-07-05
- Reduced the library size. For example, on macOS a stripped test
binary statically linked with {fmt} [shrank from \~368k to less than
100k](http://www.zverovich.net/2020/05/21/reducing-library-size.html).
- Added a simpler and more efficient [format string compilation
API](https://fmt.dev/7.0.0/api.html#compile-api):
```c++
#include <fmt/compile.h>
// Converts 42 into std::string using the most efficient method and no
// runtime format string processing.
std::string s = fmt::format(FMT_COMPILE("{}"), 42);
```
The old `fmt::compile` API is now deprecated.
- Optimized integer formatting: `format_to` with format string
compilation and a stack-allocated buffer is now [faster than
to_chars on both libc++ and
libstdc++](http://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html).
- Optimized handling of small format strings. For example,
```c++
fmt::format("Result: {}: ({},{},{},{})", str1, str2, str3, str4, str5)
```
is now \~40% faster
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1685).
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- Applied extern templates to improve compile times when using the
core API and `fmt/format.h`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1452). For example,
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
on macOS with clang the compile time of a test translation unit
dropped from 2.3s to 0.3s with `-O2` and from 0.6s to 0.3s with the
default settings (`-O0`).
Before (`-O2`):
% time c++ -c test.cc -I include -std=c++17 -O2
c++ -c test.cc -I include -std=c++17 -O2 2.22s user 0.08s system 99% cpu 2.311 total
After (`-O2`):
% time c++ -c test.cc -I include -std=c++17 -O2
c++ -c test.cc -I include -std=c++17 -O2 0.26s user 0.04s system 98% cpu 0.303 total
Before (default):
% time c++ -c test.cc -I include -std=c++17
c++ -c test.cc -I include -std=c++17 0.53s user 0.06s system 98% cpu 0.601 total
After (default):
% time c++ -c test.cc -I include -std=c++17
c++ -c test.cc -I include -std=c++17 0.24s user 0.06s system 98% cpu 0.301 total
It is still recommended to use `fmt/core.h` instead of
`fmt/format.h` but the compile time difference is now smaller.
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @alex3d for the suggestion.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Named arguments are now stored on stack (no dynamic memory
allocations) and the compiled code is more compact and efficient.
For example
```c++
#include <fmt/core.h>
int main() {
fmt::print("The answer is {answer}\n", fmt::arg("answer", 42));
}
```
compiles to just ([godbolt](https://godbolt.org/z/NcfEp_))
```asm
.LC0:
.string "answer"
.LC1:
.string "The answer is {answer}\n"
main:
sub rsp, 56
mov edi, OFFSET FLAT:.LC1
mov esi, 23
movabs rdx, 4611686018427387905
lea rax, [rsp+32]
lea rcx, [rsp+16]
mov QWORD PTR [rsp+8], 1
mov QWORD PTR [rsp], rax
mov DWORD PTR [rsp+16], 42
mov QWORD PTR [rsp+32], OFFSET FLAT:.LC0
mov DWORD PTR [rsp+40], 0
call fmt::v6::vprint(fmt::v6::basic_string_view<char>,
fmt::v6::format_args)
xor eax, eax
add rsp, 56
ret
.L.str.1:
.asciz "answer"
```
- Implemented compile-time checks for dynamic width and precision
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1614):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
#include <fmt/format.h>
int main() {
fmt::print(FMT_STRING("{0:{1}}"), 42);
}
```
now gives a compilation error because argument 1 doesn\'t exist:
In file included from test.cc:1:
include/fmt/format.h:2726:27: error: constexpr variable 'invalid_format' must be
initialized by a constant expression
FMT_CONSTEXPR_DECL bool invalid_format =
^
...
include/fmt/core.h:569:26: note: in call to
'&checker(s, {}).context_->on_error(&"argument not found"[0])'
if (id >= num_args_) on_error("argument not found");
^
- Added sentinel support to `fmt::join`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1689)
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
struct zstring_sentinel {};
bool operator==(const char* p, zstring_sentinel) { return *p == '\0'; }
bool operator!=(const char* p, zstring_sentinel) { return *p != '\0'; }
struct zstring {
const char* p;
const char* begin() const { return p; }
zstring_sentinel end() const { return {}; }
};
auto s = fmt::format("{}", fmt::join(zstring{"hello"}, "_"));
// s == "h_e_l_l_o"
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @BRevzin.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support for named arguments, `clear` and `reserve` to
`dynamic_format_arg_store`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1655,
https://github.com/fmtlib/fmt/pull/1663,
https://github.com/fmtlib/fmt/pull/1674,
https://github.com/fmtlib/fmt/pull/1677). Thanks @vsolontsov-ll.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support for the `'c'` format specifier to integral types for
compatibility with `std::format`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1652).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Replaced the `'n'` format specifier with `'L'` for compatibility
with `std::format`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1624). The `'n'`
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
specifier can be enabled via the `FMT_DEPRECATED_N_SPECIFIER` macro.
- The `'='` format specifier is now disabled by default for
compatibility with `std::format`. It can be enabled via the
`FMT_DEPRECATED_NUMERIC_ALIGN` macro.
- Removed the following deprecated APIs:
- `FMT_STRING_ALIAS` and `fmt` macros - replaced by `FMT_STRING`
- `fmt::basic_string_view::char_type` - replaced by
`fmt::basic_string_view::value_type`
- `convert_to_int`
- `format_arg_store::types`
- `*parse_context` - replaced by `*format_parse_context`
- `FMT_DEPRECATED_INCLUDE_OS`
- `FMT_DEPRECATED_PERCENT` - incompatible with `std::format`
- `*writer` - replaced by compiled format API
- Renamed the `internal` namespace to `detail`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1538). The former is
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
still provided as an alias if the `FMT_USE_INTERNAL` macro is
defined.
- Improved compatibility between `fmt::printf` with the standard specs
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1595,
https://github.com/fmtlib/fmt/pull/1682,
https://github.com/fmtlib/fmt/pull/1683,
https://github.com/fmtlib/fmt/pull/1687,
https://github.com/fmtlib/fmt/pull/1699). Thanks @rimathia.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of `operator<<` overloads that use `copyfmt`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1666).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added the `FMT_OS` CMake option to control inclusion of OS-specific
APIs in the fmt target. This can be useful for embedded platforms
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1654,
https://github.com/fmtlib/fmt/pull/1656). Thanks @kwesolowski.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Replaced `FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION` with the
`FMT_FUZZ` macro to prevent interfering with fuzzing of projects
Simplify URLs
2023-09-04 17:00:13 +00:00
using {fmt} (https://github.com/fmtlib/fmt/pull/1650).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @asraa.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed compatibility with emscripten
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1636,
https://github.com/fmtlib/fmt/pull/1637). Thanks @ArthurSonzogni.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved documentation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/704,
https://github.com/fmtlib/fmt/pull/1643,
https://github.com/fmtlib/fmt/pull/1660,
https://github.com/fmtlib/fmt/pull/1681,
https://github.com/fmtlib/fmt/pull/1691,
https://github.com/fmtlib/fmt/pull/1706,
https://github.com/fmtlib/fmt/pull/1714,
https://github.com/fmtlib/fmt/pull/1721,
https://github.com/fmtlib/fmt/pull/1739,
https://github.com/fmtlib/fmt/pull/1740,
https://github.com/fmtlib/fmt/pull/1741,
https://github.com/fmtlib/fmt/pull/1751).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @senior7515, @lsr0, @puetzk, @fpelliccioni, Alexey Kuzmenko, @jelly,
@claremacrae, @jiapengwen, @gsjaardema and @alexey-milovidov.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Implemented various build configuration fixes and improvements
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1603,
https://github.com/fmtlib/fmt/pull/1657,
https://github.com/fmtlib/fmt/pull/1702,
https://github.com/fmtlib/fmt/pull/1728).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @scramsby, @jtojnar, @orivej and @flagarde.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed various warnings and compilation issues
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1616,
https://github.com/fmtlib/fmt/issues/1620,
https://github.com/fmtlib/fmt/issues/1622,
https://github.com/fmtlib/fmt/issues/1625,
https://github.com/fmtlib/fmt/pull/1627,
https://github.com/fmtlib/fmt/issues/1628,
https://github.com/fmtlib/fmt/pull/1629,
https://github.com/fmtlib/fmt/issues/1631,
https://github.com/fmtlib/fmt/pull/1633,
https://github.com/fmtlib/fmt/pull/1649,
https://github.com/fmtlib/fmt/issues/1658,
https://github.com/fmtlib/fmt/pull/1661,
https://github.com/fmtlib/fmt/pull/1667,
https://github.com/fmtlib/fmt/issues/1668,
https://github.com/fmtlib/fmt/pull/1669,
https://github.com/fmtlib/fmt/issues/1692,
https://github.com/fmtlib/fmt/pull/1696,
https://github.com/fmtlib/fmt/pull/1697,
https://github.com/fmtlib/fmt/issues/1707,
https://github.com/fmtlib/fmt/pull/1712,
https://github.com/fmtlib/fmt/pull/1716,
https://github.com/fmtlib/fmt/pull/1722,
https://github.com/fmtlib/fmt/issues/1724,
https://github.com/fmtlib/fmt/pull/1729,
https://github.com/fmtlib/fmt/pull/1738,
https://github.com/fmtlib/fmt/issues/1742,
https://github.com/fmtlib/fmt/issues/1743,
https://github.com/fmtlib/fmt/pull/1744,
https://github.com/fmtlib/fmt/issues/1747,
https://github.com/fmtlib/fmt/pull/1750).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @gsjaardema, @gabime, @johnor, @Kurkin, @invexed, @peterbell10,
@daixtrose, @petrutlucian94, @Neargye, @ambitslix, @gabime, @erthink,
@tohammer and @0x8000-0000.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 6.2.1 - 2020-05-09
- Fixed ostream support in `sprintf`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1631).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed type detection when using implicit conversion to `string_view`
and ostream `operator<<` inconsistently
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1662).
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2023-09-04 14:07:24 +00:00
# 6.2.0 - 2020-04-05
- Improved error reporting when trying to format an object of a
non-formattable type:
```c++
fmt::format("{}", S());
```
now gives:
include/fmt/core.h:1015:5: error: static_assert failed due to requirement
'formattable' "Cannot format argument. To make type T formattable provide a
formatter<T> specialization:
https://fmt.dev/latest/api.html#formatting-user-defined-types"
static_assert(
^
...
note: in instantiation of function template specialization
'fmt::v6::format<char [3], S, char>' requested here
fmt::format("{}", S());
^
if `S` is not formattable.
- Reduced the library size by \~10%.
- Always print decimal point if `#` is specified
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1476,
https://github.com/fmtlib/fmt/issues/1498):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
fmt::print("{:#.0f}", 42.0);
```
now prints `42.`
- Implemented the `'L'` specifier for locale-specific numeric
formatting to improve compatibility with `std::format`. The `'n'`
specifier is now deprecated and will be removed in the next major
release.
- Moved OS-specific APIs such as `windows_error` from `fmt/format.h`
to `fmt/os.h`. You can define `FMT_DEPRECATED_INCLUDE_OS` to
automatically include `fmt/os.h` from `fmt/format.h` for
compatibility but this will be disabled in the next major release.
- Added precision overflow detection in floating-point formatting.
- Implemented detection of invalid use of `fmt::arg`.
- Used `type_identity` to block unnecessary template argument
deduction. Thanks Tim Song.
- Improved UTF-8 handling
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1109):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
fmt::print("┌{0:─^{2}}┐\n"
"│{1: ^{2}}│\n"
"└{0:─^{2}}┘\n", "", "Привет, мир!", 20);
```
now prints:
┌────────────────────┐
│ Привет, мир! │
└────────────────────┘
on systems that support Unicode.
- Added experimental dynamic argument storage
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1170,
https://github.com/fmtlib/fmt/pull/1584):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
fmt::dynamic_format_arg_store<fmt::format_context> store;
store.push_back("answer");
store.push_back(42);
fmt::vprint("The {} is {}.\n", store);
```
prints:
The answer is 42.
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @vsolontsov-ll.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made `fmt::join` accept `initializer_list`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1591). Thanks @Rapotkinnik.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of empty tuples
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1588).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of output iterators in `format_to_n`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1506).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed formatting of `std::chrono::duration` types to wide output
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1533). Thanks @zeffy.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added const `begin` and `end` overload to buffers
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1553). Thanks @dominicpoeschko.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added the ability to disable floating-point formatting via
`FMT_USE_FLOAT`, `FMT_USE_DOUBLE` and `FMT_USE_LONG_DOUBLE` macros
for extremely memory-constrained embedded system
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1590). Thanks @albaguirre.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made `FMT_STRING` work with `constexpr` `string_view`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1589). Thanks @scramsby.
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2023-09-04 14:07:24 +00:00
- Implemented a minor optimization in the format string parser
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1560). Thanks @IkarusDeveloper.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved attribute detection
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1469,
https://github.com/fmtlib/fmt/pull/1475,
https://github.com/fmtlib/fmt/pull/1576).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @federico-busato, @chronoxor and @refnum.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved documentation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1481,
https://github.com/fmtlib/fmt/pull/1523).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @JackBoosY and @imba-tjd.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed symbol visibility on Linux when compiling with
`-fvisibility=hidden`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1535). Thanks @milianw.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Implemented various build configuration fixes and improvements
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1264,
https://github.com/fmtlib/fmt/issues/1460,
https://github.com/fmtlib/fmt/pull/1534,
https://github.com/fmtlib/fmt/issues/1536,
https://github.com/fmtlib/fmt/issues/1545,
https://github.com/fmtlib/fmt/pull/1546,
https://github.com/fmtlib/fmt/issues/1566,
https://github.com/fmtlib/fmt/pull/1582,
https://github.com/fmtlib/fmt/issues/1597,
https://github.com/fmtlib/fmt/pull/1598).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @ambitslix, @jwillikers and @stac47.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed various warnings and compilation issues
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1433,
https://github.com/fmtlib/fmt/issues/1461,
https://github.com/fmtlib/fmt/pull/1470,
https://github.com/fmtlib/fmt/pull/1480,
https://github.com/fmtlib/fmt/pull/1485,
https://github.com/fmtlib/fmt/pull/1492,
https://github.com/fmtlib/fmt/issues/1493,
https://github.com/fmtlib/fmt/issues/1504,
https://github.com/fmtlib/fmt/pull/1505,
https://github.com/fmtlib/fmt/pull/1512,
https://github.com/fmtlib/fmt/issues/1515,
https://github.com/fmtlib/fmt/pull/1516,
https://github.com/fmtlib/fmt/pull/1518,
https://github.com/fmtlib/fmt/pull/1519,
https://github.com/fmtlib/fmt/pull/1520,
https://github.com/fmtlib/fmt/pull/1521,
https://github.com/fmtlib/fmt/pull/1522,
https://github.com/fmtlib/fmt/issues/1524,
https://github.com/fmtlib/fmt/pull/1530,
https://github.com/fmtlib/fmt/issues/1531,
https://github.com/fmtlib/fmt/pull/1532,
https://github.com/fmtlib/fmt/issues/1539,
https://github.com/fmtlib/fmt/issues/1547,
https://github.com/fmtlib/fmt/issues/1548,
https://github.com/fmtlib/fmt/pull/1554,
https://github.com/fmtlib/fmt/issues/1567,
https://github.com/fmtlib/fmt/pull/1568,
https://github.com/fmtlib/fmt/pull/1569,
https://github.com/fmtlib/fmt/pull/1571,
https://github.com/fmtlib/fmt/pull/1573,
https://github.com/fmtlib/fmt/pull/1575,
https://github.com/fmtlib/fmt/pull/1581,
https://github.com/fmtlib/fmt/issues/1583,
https://github.com/fmtlib/fmt/issues/1586,
https://github.com/fmtlib/fmt/issues/1587,
https://github.com/fmtlib/fmt/issues/1594,
https://github.com/fmtlib/fmt/pull/1596,
https://github.com/fmtlib/fmt/issues/1604,
https://github.com/fmtlib/fmt/pull/1606,
https://github.com/fmtlib/fmt/issues/1607,
https://github.com/fmtlib/fmt/issues/1609).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @marti4d, @iPherian, @parkertomatoes, @gsjaardema, @chronoxor,
@DanielaE, @torsten48, @tohammer, @lefticus, @ryusakki, @adnsv, @fghzxm,
@refnum, @pramodk, @Spirrwell and @scramsby.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 6.1.2 - 2019-12-11
- Fixed ABI compatibility with `libfmt.so.6.0.0`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1471).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling types convertible to `std::string_view`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1451). Thanks @denizevrenci.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made CUDA test an opt-in enabled via the `FMT_CUDA_TEST` CMake
option.
- Fixed sign conversion warnings
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1440). Thanks @0x8000-0000.
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2023-09-04 14:07:24 +00:00
# 6.1.1 - 2019-12-04
- Fixed shared library build on Windows
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1443,
https://github.com/fmtlib/fmt/issues/1445,
https://github.com/fmtlib/fmt/pull/1446,
https://github.com/fmtlib/fmt/issues/1450).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @egorpugin and @bbolli.
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2023-09-04 14:07:24 +00:00
- Added a missing decimal point in exponent notation with trailing
zeros.
- Removed deprecated `format_arg_store::TYPES`.
# 6.1.0 - 2019-12-01
- {fmt} now formats IEEE 754 `float` and `double` using the shortest
decimal representation with correct rounding by default:
```c++
#include <cmath>
#include <fmt/core.h>
int main() {
fmt::print("{}", M_PI);
}
```
prints `3.141592653589793`.
- Made the fast binary to decimal floating-point formatter the
default, simplified it and improved performance. {fmt} is now 15
times faster than libc++\'s `std::ostringstream`, 11 times faster
than `printf` and 10% faster than double-conversion on
[dtoa-benchmark](https://github.com/fmtlib/dtoa-benchmark):
Update ChangeLog.md
2023-09-04 15:16:16 +00:00
| Function | Time (ns) | Speedup |
| ------------- | --------: | ------: |
| ostringstream | 1,346.30 | 1.00x |
| ostrstream | 1,195.74 | 1.13x |
| sprintf | 995.08 | 1.35x |
| doubleconv | 99.10 | 13.59x |
| fmt | 88.34 | 15.24x |
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Simplify URLs
2023-09-04 17:00:13 +00:00
![](https://user-images.githubusercontent.com/576385/69767160-cdaca400-112f-11ea-9fc5-347c9f83caad.png)
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2023-09-04 14:07:24 +00:00
- {fmt} no longer converts `float` arguments to `double`. In
particular this improves the default (shortest) representation of
floats and makes `fmt::format` consistent with `std::format` specs
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1336,
https://github.com/fmtlib/fmt/issues/1353,
https://github.com/fmtlib/fmt/pull/1360,
https://github.com/fmtlib/fmt/pull/1361):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
fmt::print("{}", 0.1f);
```
prints `0.1` instead of `0.10000000149011612`.
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @orivej.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made floating-point formatting output consistent with
`printf`/iostreams
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1376,
https://github.com/fmtlib/fmt/issues/1417).
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2023-09-04 14:07:24 +00:00
- Added support for 128-bit integers
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1287):
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2023-09-04 14:07:24 +00:00
```c++
fmt::print("{}", std::numeric_limits<__int128_t>::max());
```
prints `170141183460469231731687303715884105727`.
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @denizevrenci.
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2023-09-04 14:07:24 +00:00
- The overload of `print` that takes `text_style` is now atomic, i.e.
the output from different threads doesn\'t interleave
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1351). Thanks @tankiJong.
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2023-09-04 14:07:24 +00:00
- Made compile time in the header-only mode \~20% faster by reducing
the number of template instantiations. `wchar_t` overload of
`vprint` was moved from `fmt/core.h` to `fmt/format.h`.
- Added an overload of `fmt::join` that works with tuples
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1322,
https://github.com/fmtlib/fmt/pull/1330):
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2023-09-04 14:07:24 +00:00
```c++
#include <tuple>
#include <fmt/ranges.h>
int main() {
std::tuple<char, int, float> t{'a', 1, 2.0f};
fmt::print("{}", t);
}
```
prints `('a', 1, 2.0)`.
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @jeremyong.
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2023-09-04 14:07:24 +00:00
- Changed formatting of octal zero with prefix from \"00\" to \"0\":
```c++
fmt::print("{:#o}", 0);
```
prints `0`.
- The locale is now passed to ostream insertion (`<<`) operators
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1406):
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2023-09-04 14:07:24 +00:00
```c++
#include <fmt/locale.h>
#include <fmt/ostream.h>
struct S {
double value;
};
std::ostream& operator<<(std::ostream& os, S s) {
return os << s.value;
}
int main() {
auto s = fmt::format(std::locale("fr_FR.UTF-8"), "{}", S{0.42});
// s == "0,42"
}
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @dlaugt.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Locale-specific number formatting now uses grouping
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1393,
https://github.com/fmtlib/fmt/pull/1394). Thanks @skrdaniel.
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2023-09-04 14:07:24 +00:00
- Fixed handling of types with deleted implicit rvalue conversion to
Simplify URLs
2023-09-04 17:00:13 +00:00
`const char**` (https://github.com/fmtlib/fmt/issues/1421):
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2023-09-04 14:07:24 +00:00
```c++
struct mystring {
operator const char*() const&;
operator const char*() &;
operator const char*() const&& = delete;
operator const char*() && = delete;
};
mystring str;
fmt::print("{}", str); // now compiles
```
- Enums are now mapped to correct underlying types instead of `int`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1286). Thanks @agmt.
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- Enum classes are no longer implicitly converted to `int`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1424).
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2023-09-04 14:07:24 +00:00
- Added `basic_format_parse_context` for consistency with C++20
`std::format` and deprecated `basic_parse_context`.
- Fixed handling of UTF-8 in precision
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1389,
https://github.com/fmtlib/fmt/pull/1390). Thanks @tajtiattila.
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- {fmt} can now be installed on Linux, macOS and Windows with
[Conda](https://docs.conda.io/en/latest/) using its
[conda-forge](https://conda-forge.org)
[package](https://github.com/conda-forge/fmt-feedstock)
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1410):
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2023-09-04 14:07:24 +00:00
conda install -c conda-forge fmt
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @tdegeus.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
Simplify URLs
2023-09-04 17:00:13 +00:00
- Added a CUDA test (https://github.com/fmtlib/fmt/pull/1285,
https://github.com/fmtlib/fmt/pull/1317).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @luncliff and @risa2000.
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2023-09-04 14:07:24 +00:00
- Improved documentation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1276,
https://github.com/fmtlib/fmt/issues/1291,
https://github.com/fmtlib/fmt/issues/1296,
https://github.com/fmtlib/fmt/pull/1315,
https://github.com/fmtlib/fmt/pull/1332,
https://github.com/fmtlib/fmt/pull/1337,
https://github.com/fmtlib/fmt/issues/1395
https://github.com/fmtlib/fmt/pull/1418).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @waywardmonkeys, @pauldreik and @jackoalan.
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2023-09-04 14:07:24 +00:00
- Various code improvements
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1358,
https://github.com/fmtlib/fmt/pull/1407).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @orivej and @dpacbach.
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2023-09-04 14:07:24 +00:00
- Fixed compile-time format string checks for user-defined types
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1292).
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2023-09-04 14:07:24 +00:00
Simplify URLs
2023-09-04 17:00:13 +00:00
- Worked around a false positive in `unsigned-integer-overflow` sanitizer
(https://github.com/fmtlib/fmt/issues/1377).
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2023-09-04 14:07:24 +00:00
- Fixed various warnings and compilation issues
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1273,
https://github.com/fmtlib/fmt/pull/1278,
https://github.com/fmtlib/fmt/pull/1280,
https://github.com/fmtlib/fmt/issues/1281,
https://github.com/fmtlib/fmt/issues/1288,
https://github.com/fmtlib/fmt/pull/1290,
https://github.com/fmtlib/fmt/pull/1301,
https://github.com/fmtlib/fmt/issues/1305,
https://github.com/fmtlib/fmt/issues/1306,
https://github.com/fmtlib/fmt/issues/1309,
https://github.com/fmtlib/fmt/pull/1312,
https://github.com/fmtlib/fmt/issues/1313,
https://github.com/fmtlib/fmt/issues/1316,
https://github.com/fmtlib/fmt/issues/1319,
https://github.com/fmtlib/fmt/pull/1320,
https://github.com/fmtlib/fmt/pull/1326,
https://github.com/fmtlib/fmt/pull/1328,
https://github.com/fmtlib/fmt/issues/1344,
https://github.com/fmtlib/fmt/pull/1345,
https://github.com/fmtlib/fmt/pull/1347,
https://github.com/fmtlib/fmt/pull/1349,
https://github.com/fmtlib/fmt/issues/1354,
https://github.com/fmtlib/fmt/issues/1362,
https://github.com/fmtlib/fmt/issues/1366,
https://github.com/fmtlib/fmt/pull/1364,
https://github.com/fmtlib/fmt/pull/1370,
https://github.com/fmtlib/fmt/pull/1371,
https://github.com/fmtlib/fmt/issues/1385,
https://github.com/fmtlib/fmt/issues/1388,
https://github.com/fmtlib/fmt/pull/1397,
https://github.com/fmtlib/fmt/pull/1414,
https://github.com/fmtlib/fmt/pull/1416,
https://github.com/fmtlib/fmt/issues/1422
https://github.com/fmtlib/fmt/pull/1427,
https://github.com/fmtlib/fmt/issues/1431,
https://github.com/fmtlib/fmt/pull/1433).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @hhb, @gsjaardema, @gabime, @neheb, @vedranmiletic, @dkavolis,
@mwinterb, @orivej, @denizevrenci, @leonklingele, @chronoxor, @kent-tri,
@0x8000-0000 and @marti4d.
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# 6.0.0 - 2019-08-26
Simplify URLs
2023-09-04 17:00:13 +00:00
- Switched to the [MIT license](
https://github.com/fmtlib/fmt/blob/5a4b24613ba16cc689977c3b5bd8274a3ba1dd1f/LICENSE.rst)
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with an optional exception that allows distributing binary code
without attribution.
- Floating-point formatting is now locale-independent by default:
```c++
#include <locale>
#include <fmt/core.h>
int main() {
std::locale::global(std::locale("ru_RU.UTF-8"));
fmt::print("value = {}", 4.2);
}
```
prints \"value = 4.2\" regardless of the locale.
For locale-specific formatting use the `n` specifier:
```c++
std::locale::global(std::locale("ru_RU.UTF-8"));
fmt::print("value = {:n}", 4.2);
```
prints \"value = 4,2\".
- Added an experimental Grisu floating-point formatting algorithm
implementation (disabled by default). To enable it compile with the
`FMT_USE_GRISU` macro defined to 1:
```c++
#define FMT_USE_GRISU 1
#include <fmt/format.h>
auto s = fmt::format("{}", 4.2); // formats 4.2 using Grisu
```
With Grisu enabled, {fmt} is 13x faster than `std::ostringstream`
(libc++) and 10x faster than `sprintf` on
[dtoa-benchmark](https://github.com/fmtlib/dtoa-benchmark) ([full
results](https://fmt.dev/unknown_mac64_clang10.0.html)):
Simplify URLs
2023-09-04 17:00:13 +00:00
![](https://user-images.githubusercontent.com/576385/54883977-9fe8c000-4e28-11e9-8bde-272d122e7c52.jpg)
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- Separated formatting and parsing contexts for consistency with
[C++20 std::format](http://eel.is/c++draft/format), removing the
undocumented `basic_format_context::parse_context()` function.
- Added [oss-fuzz](https://github.com/google/oss-fuzz) support
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1199). Thanks @pauldreik.
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2023-09-04 14:07:24 +00:00
- `formatter` specializations now always take precedence over
Simplify URLs
2023-09-04 17:00:13 +00:00
`operator<<` (https://github.com/fmtlib/fmt/issues/952):
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2023-09-04 14:07:24 +00:00
```c++
#include <iostream>
#include <fmt/ostream.h>
struct S {};
std::ostream& operator<<(std::ostream& os, S) {
return os << 1;
}
template <>
struct fmt::formatter<S> : fmt::formatter<int> {
auto format(S, format_context& ctx) {
return formatter<int>::format(2, ctx);
}
};
int main() {
std::cout << S() << "\n"; // prints 1 using operator<<
fmt::print("{}\n", S()); // prints 2 using formatter
}
```
- Introduced the experimental `fmt::compile` function that does format
string compilation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/618,
https://github.com/fmtlib/fmt/issues/1169,
https://github.com/fmtlib/fmt/pull/1171):
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2023-09-04 14:07:24 +00:00
```c++
#include <fmt/compile.h>
auto f = fmt::compile<int>("{}");
std::string s = fmt::format(f, 42); // can be called multiple times to
// format different values
// s == "42"
```
It moves the cost of parsing a format string outside of the format
function which can be beneficial when identically formatting many
Cleanup changelog
2023-09-04 16:05:07 +00:00
objects of the same types. Thanks @stryku.
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2023-09-04 14:07:24 +00:00
- Added experimental `%` format specifier that formats floating-point
values as percentages
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1060,
https://github.com/fmtlib/fmt/pull/1069,
https://github.com/fmtlib/fmt/pull/1071):
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2023-09-04 14:07:24 +00:00
```c++
auto s = fmt::format("{:.1%}", 0.42); // s == "42.0%"
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @gawain-bolton.
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2023-09-04 14:07:24 +00:00
- Implemented precision for floating-point durations
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1004,
https://github.com/fmtlib/fmt/pull/1012):
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2023-09-04 14:07:24 +00:00
```c++
auto s = fmt::format("{:.1}", std::chrono::duration<double>(1.234));
// s == 1.2s
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @DanielaE.
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2023-09-04 14:07:24 +00:00
- Implemented `chrono` format specifiers `%Q` and `%q` that give the
value and the unit respectively
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1019):
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2023-09-04 14:07:24 +00:00
```c++
auto value = fmt::format("{:%Q}", 42s); // value == "42"
auto unit = fmt::format("{:%q}", 42s); // unit == "s"
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @DanielaE.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of dynamic width in chrono formatter:
```c++
auto s = fmt::format("{0:{1}%H:%M:%S}", std::chrono::seconds(12345), 12);
// ^ width argument index ^ width
// s == "03:25:45 "
```
Thanks Howard Hinnant.
- Removed deprecated `fmt/time.h`. Use `fmt/chrono.h` instead.
- Added `fmt::format` and `fmt::vformat` overloads that take
Simplify URLs
2023-09-04 17:00:13 +00:00
`text_style` (https://github.com/fmtlib/fmt/issues/993,
https://github.com/fmtlib/fmt/pull/994):
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2023-09-04 14:07:24 +00:00
```c++
#include <fmt/color.h>
std::string message = fmt::format(fmt::emphasis::bold | fg(fmt::color::red),
"The answer is {}.", 42);
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @Naios.
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2023-09-04 14:07:24 +00:00
- Removed the deprecated color API (`print_colored`). Use the new API,
namely `print` overloads that take `text_style` instead.
- Made `std::unique_ptr` and `std::shared_ptr` formattable as pointers
Simplify URLs
2023-09-04 17:00:13 +00:00
via `fmt::ptr` (https://github.com/fmtlib/fmt/pull/1121):
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2023-09-04 14:07:24 +00:00
```c++
std::unique_ptr<int> p = ...;
fmt::print("{}", fmt::ptr(p)); // prints p as a pointer
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @sighingnow.
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2023-09-04 14:07:24 +00:00
- Made `print` and `vprint` report I/O errors
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1098,
https://github.com/fmtlib/fmt/pull/1099). Thanks @BillyDonahue.
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2023-09-04 14:07:24 +00:00
- Marked deprecated APIs with the `[[deprecated]]` attribute and
removed internal uses of deprecated APIs
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1022). Thanks @eliaskosunen.
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2023-09-04 14:07:24 +00:00
- Modernized the codebase using more C++11 features and removing
workarounds. Most importantly, `buffer_context` is now an alias
template, so use `buffer_context<T>` instead of
`buffer_context<T>::type`. These features require GCC 4.8 or later.
- `formatter` specializations now always take precedence over implicit
conversions to `int` and the undocumented `convert_to_int` trait is
now deprecated.
- Moved the undocumented `basic_writer`, `writer`, and `wwriter` types
to the `internal` namespace.
- Removed deprecated `basic_format_context::begin()`. Use `out()`
instead.
- Disallowed passing the result of `join` as an lvalue to prevent
misuse.
- Refactored the undocumented structs that represent parsed format
specifiers to simplify the API and allow multibyte fill.
- Moved SFINAE to template parameters to reduce symbol sizes.
- Switched to `fputws` for writing wide strings so that it\'s no
longer required to call `_setmode` on Windows
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1229,
https://github.com/fmtlib/fmt/pull/1243). Thanks @jackoalan.
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2023-09-04 14:07:24 +00:00
- Improved literal-based API
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1254). Thanks @sylveon.
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2023-09-04 14:07:24 +00:00
- Added support for exotic platforms without `uintptr_t` such as IBM i
(AS/400) which has 128-bit pointers and only 64-bit integers
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1059).
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2023-09-04 14:07:24 +00:00
Simplify URLs
2023-09-04 17:00:13 +00:00
- Added [Sublime Text syntax highlighting config](
https://github.com/fmtlib/fmt/blob/master/support/C%2B%2B.sublime-syntax)
(https://github.com/fmtlib/fmt/issues/1037). Thanks @Kronuz.
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2023-09-04 14:07:24 +00:00
- Added the `FMT_ENFORCE_COMPILE_STRING` macro to enforce the use of
compile-time format strings
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1231). Thanks @jackoalan.
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2023-09-04 14:07:24 +00:00
- Stopped setting `CMAKE_BUILD_TYPE` if {fmt} is a subproject
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1081).
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2023-09-04 14:07:24 +00:00
- Various build improvements
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1039,
https://github.com/fmtlib/fmt/pull/1078,
https://github.com/fmtlib/fmt/pull/1091,
https://github.com/fmtlib/fmt/pull/1103,
https://github.com/fmtlib/fmt/pull/1177).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @luncliff, @jasonszang, @olafhering, @Lecetem and @pauldreik.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved documentation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1049,
https://github.com/fmtlib/fmt/pull/1051,
https://github.com/fmtlib/fmt/pull/1083,
https://github.com/fmtlib/fmt/pull/1113,
https://github.com/fmtlib/fmt/pull/1114,
https://github.com/fmtlib/fmt/issues/1146,
https://github.com/fmtlib/fmt/issues/1180,
https://github.com/fmtlib/fmt/pull/1250,
https://github.com/fmtlib/fmt/pull/1252,
https://github.com/fmtlib/fmt/pull/1265).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @mikelui, @foonathan, @BillyDonahue, @jwakely, @kaisbe and
@sdebionne.
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2023-09-04 14:07:24 +00:00
- Fixed ambiguous formatter specialization in `fmt/ranges.h`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1123).
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2023-09-04 14:07:24 +00:00
- Fixed formatting of a non-empty `std::filesystem::path` which is an
infinitely deep range of its components
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1268).
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2023-09-04 14:07:24 +00:00
- Fixed handling of general output iterators when formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
characters (https://github.com/fmtlib/fmt/issues/1056,
https://github.com/fmtlib/fmt/pull/1058). Thanks @abolz.
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2023-09-04 14:07:24 +00:00
- Fixed handling of output iterators in `formatter` specialization for
Simplify URLs
2023-09-04 17:00:13 +00:00
ranges (https://github.com/fmtlib/fmt/issues/1064).
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2023-09-04 14:07:24 +00:00
- Fixed handling of exotic character types
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1188).
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2023-09-04 14:07:24 +00:00
- Made chrono formatting work with exceptions disabled
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1062).
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2023-09-04 14:07:24 +00:00
- Fixed DLL visibility issues
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/1134,
https://github.com/fmtlib/fmt/pull/1147). Thanks @denchat.
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2023-09-04 14:07:24 +00:00
- Disabled the use of UDL template extension on GCC 9
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1148).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Removed misplaced `format` compile-time checks from `printf`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1173).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed issues in the experimental floating-point formatter
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1072,
https://github.com/fmtlib/fmt/issues/1129,
https://github.com/fmtlib/fmt/issues/1153,
https://github.com/fmtlib/fmt/pull/1155,
https://github.com/fmtlib/fmt/issues/1210,
https://github.com/fmtlib/fmt/issues/1222). Thanks @alabuzhev.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed bugs discovered by fuzzing or during fuzzing integration
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1124,
https://github.com/fmtlib/fmt/issues/1127,
https://github.com/fmtlib/fmt/issues/1132,
https://github.com/fmtlib/fmt/pull/1135,
https://github.com/fmtlib/fmt/issues/1136,
https://github.com/fmtlib/fmt/issues/1141,
https://github.com/fmtlib/fmt/issues/1142,
https://github.com/fmtlib/fmt/issues/1178,
https://github.com/fmtlib/fmt/issues/1179,
https://github.com/fmtlib/fmt/issues/1194). Thanks @pauldreik.
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2023-09-04 14:07:24 +00:00
- Fixed building tests on FreeBSD and Hurd
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/1043). Thanks @jackyf.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed various warnings and compilation issues
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/998,
https://github.com/fmtlib/fmt/pull/1006,
https://github.com/fmtlib/fmt/issues/1008,
https://github.com/fmtlib/fmt/issues/1011,
https://github.com/fmtlib/fmt/issues/1025,
https://github.com/fmtlib/fmt/pull/1027,
https://github.com/fmtlib/fmt/pull/1028,
https://github.com/fmtlib/fmt/pull/1029,
https://github.com/fmtlib/fmt/pull/1030,
https://github.com/fmtlib/fmt/pull/1031,
https://github.com/fmtlib/fmt/pull/1054,
https://github.com/fmtlib/fmt/issues/1063,
https://github.com/fmtlib/fmt/pull/1068,
https://github.com/fmtlib/fmt/pull/1074,
https://github.com/fmtlib/fmt/pull/1075,
https://github.com/fmtlib/fmt/pull/1079,
https://github.com/fmtlib/fmt/pull/1086,
https://github.com/fmtlib/fmt/issues/1088,
https://github.com/fmtlib/fmt/pull/1089,
https://github.com/fmtlib/fmt/pull/1094,
https://github.com/fmtlib/fmt/issues/1101,
https://github.com/fmtlib/fmt/pull/1102,
https://github.com/fmtlib/fmt/issues/1105,
https://github.com/fmtlib/fmt/pull/1107,
https://github.com/fmtlib/fmt/issues/1115,
https://github.com/fmtlib/fmt/issues/1117,
https://github.com/fmtlib/fmt/issues/1118,
https://github.com/fmtlib/fmt/issues/1120,
https://github.com/fmtlib/fmt/issues/1123,
https://github.com/fmtlib/fmt/pull/1139,
https://github.com/fmtlib/fmt/issues/1140,
https://github.com/fmtlib/fmt/issues/1143,
https://github.com/fmtlib/fmt/pull/1144,
https://github.com/fmtlib/fmt/pull/1150,
https://github.com/fmtlib/fmt/pull/1151,
https://github.com/fmtlib/fmt/issues/1152,
https://github.com/fmtlib/fmt/issues/1154,
https://github.com/fmtlib/fmt/issues/1156,
https://github.com/fmtlib/fmt/pull/1159,
https://github.com/fmtlib/fmt/issues/1175,
https://github.com/fmtlib/fmt/issues/1181,
https://github.com/fmtlib/fmt/issues/1186,
https://github.com/fmtlib/fmt/pull/1187,
https://github.com/fmtlib/fmt/pull/1191,
https://github.com/fmtlib/fmt/issues/1197,
https://github.com/fmtlib/fmt/issues/1200,
https://github.com/fmtlib/fmt/issues/1203,
https://github.com/fmtlib/fmt/issues/1205,
https://github.com/fmtlib/fmt/pull/1206,
https://github.com/fmtlib/fmt/issues/1213,
https://github.com/fmtlib/fmt/issues/1214,
https://github.com/fmtlib/fmt/pull/1217,
https://github.com/fmtlib/fmt/issues/1228,
https://github.com/fmtlib/fmt/pull/1230,
https://github.com/fmtlib/fmt/issues/1232,
https://github.com/fmtlib/fmt/pull/1235,
https://github.com/fmtlib/fmt/pull/1236,
https://github.com/fmtlib/fmt/issues/1240).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @DanielaE, @mwinterb, @eliaskosunen, @morinmorin, @ricco19,
@waywardmonkeys, @chronoxor, @remyabel, @pauldreik, @gsjaardema, @rcane,
@mocabe, @denchat, @cjdb, @HazardyKnusperkeks, @vedranmiletic, @jackoalan,
@DaanDeMeyer and @starkmapper.
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2023-09-04 14:07:24 +00:00
# 5.3.0 - 2018-12-28
- Introduced experimental chrono formatting support:
```c++
#include <fmt/chrono.h>
int main() {
using namespace std::literals::chrono_literals;
fmt::print("Default format: {} {}\n", 42s, 100ms);
fmt::print("strftime-like format: {:%H:%M:%S}\n", 3h + 15min + 30s);
}
```
prints:
Default format: 42s 100ms
strftime-like format: 03:15:30
- Added experimental support for emphasis (bold, italic, underline,
strikethrough), colored output to a file stream, and improved
colored formatting API
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/961,
https://github.com/fmtlib/fmt/pull/967,
https://github.com/fmtlib/fmt/pull/973):
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2023-09-04 14:07:24 +00:00
```c++
#include <fmt/color.h>
int main() {
print(fg(fmt::color::crimson) | fmt::emphasis::bold,
"Hello, {}!\n", "world");
print(fg(fmt::color::floral_white) | bg(fmt::color::slate_gray) |
fmt::emphasis::underline, "Hello, {}!\n", "мир");
print(fg(fmt::color::steel_blue) | fmt::emphasis::italic,
"Hello, {}!\n", "世界");
}
```
prints the following on modern terminals with RGB color support:
Simplify URLs
2023-09-04 17:00:13 +00:00
![](https://user-images.githubusercontent.com/576385/50405788-b66e7500-076e-11e9-9592-7324d1f951d8.png)
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @Rakete1111.
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2023-09-04 14:07:24 +00:00
- Added support for 4-bit terminal colors
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/968,
https://github.com/fmtlib/fmt/pull/974)
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
#include <fmt/color.h>
int main() {
print(fg(fmt::terminal_color::red), "stop\n");
}
```
Note that these colors vary by terminal:
Simplify URLs
2023-09-04 17:00:13 +00:00
![](https://user-images.githubusercontent.com/576385/50405925-dbfc7e00-0770-11e9-9b85-333fab0af9ac.png)
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @Rakete1111.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Parameterized formatting functions on the type of the format string
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/880,
https://github.com/fmtlib/fmt/pull/881,
https://github.com/fmtlib/fmt/pull/883,
https://github.com/fmtlib/fmt/pull/885,
https://github.com/fmtlib/fmt/pull/897,
https://github.com/fmtlib/fmt/issues/920). Any object of
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2023-09-04 14:07:24 +00:00
type `S` that has an overloaded `to_string_view(const S&)` returning
`fmt::string_view` can be used as a format string:
```c++
namespace my_ns {
inline string_view to_string_view(const my_string& s) {
return {s.data(), s.length()};
}
}
std::string message = fmt::format(my_string("The answer is {}."), 42);
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @DanielaE.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made `std::string_view` work as a format string
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/898):
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2023-09-04 14:07:24 +00:00
```c++
auto message = fmt::format(std::string_view("The answer is {}."), 42);
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @DanielaE.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added wide string support to compile-time format string checks
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/924):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
print(fmt(L"{:f}"), 42); // compile-time error: invalid type specifier
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @XZiar.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made colored print functions work with wide strings
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/867):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
#include <fmt/color.h>
int main() {
print(fg(fmt::color::red), L"{}\n", 42);
}
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @DanielaE.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Introduced experimental Unicode support
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/628,
https://github.com/fmtlib/fmt/pull/891):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
using namespace fmt::literals;
auto s = fmt::format("{:*^5}"_u, "🤡"_u); // s == "**🤡**"_u
```
- Improved locale support:
```c++
#include <fmt/locale.h>
struct numpunct : std::numpunct<char> {
protected:
char do_thousands_sep() const override { return '~'; }
};
std::locale loc;
auto s = fmt::format(std::locale(loc, new numpunct()), "{:n}", 1234567);
// s == "1~234~567"
```
- Constrained formatting functions on proper iterator types
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/921). Thanks @DanielaE.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added `make_printf_args` and `make_wprintf_args` functions
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/934). Thanks @tnovotny.
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2023-09-04 14:07:24 +00:00
- Deprecated `fmt::visit`, `parse_context`, and `wparse_context`. Use
`fmt::visit_format_arg`, `format_parse_context`, and
`wformat_parse_context` instead.
- Removed undocumented `basic_fixed_buffer` which has been superseded
by the iterator-based API
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/873,
https://github.com/fmtlib/fmt/pull/902). Thanks @superfunc.
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2023-09-04 14:07:24 +00:00
- Disallowed repeated leading zeros in an argument ID:
```c++
fmt::print("{000}", 42); // error
```
- Reintroduced support for gcc 4.4.
- Fixed compilation on platforms with exotic `double`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/878).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved documentation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/164,
https://github.com/fmtlib/fmt/issues/877,
https://github.com/fmtlib/fmt/pull/901,
https://github.com/fmtlib/fmt/pull/906,
https://github.com/fmtlib/fmt/pull/979).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @kookjr, @DarkDimius and @HecticSerenity.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added pkgconfig support which makes it easier to consume the library
from meson and other build systems
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/916). Thanks @colemickens.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Various build improvements
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/909,
https://github.com/fmtlib/fmt/pull/926,
https://github.com/fmtlib/fmt/pull/937,
https://github.com/fmtlib/fmt/pull/953,
https://github.com/fmtlib/fmt/pull/959).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @tchaikov, @luncliff, @AndreasSchoenle, @hotwatermorning and @Zefz.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved `string_view` construction performance
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/914). Thanks @gabime.
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2023-09-04 14:07:24 +00:00
- Fixed non-matching char types
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/895). Thanks @DanielaE.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed `format_to_n` with `std::back_insert_iterator`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/913). Thanks @DanielaE.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed locale-dependent formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/905).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed various compiler warnings and errors
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/882,
https://github.com/fmtlib/fmt/pull/886,
https://github.com/fmtlib/fmt/pull/933,
https://github.com/fmtlib/fmt/pull/941,
https://github.com/fmtlib/fmt/issues/931,
https://github.com/fmtlib/fmt/pull/943,
https://github.com/fmtlib/fmt/pull/954,
https://github.com/fmtlib/fmt/pull/956,
https://github.com/fmtlib/fmt/pull/962,
https://github.com/fmtlib/fmt/issues/965,
https://github.com/fmtlib/fmt/issues/977,
https://github.com/fmtlib/fmt/pull/983,
https://github.com/fmtlib/fmt/pull/989).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @Luthaf, @stevenhoving, @christinaa, @lgritz, @DanielaE,
@0x8000-0000 and @liuping1997.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 5.2.1 - 2018-09-21
- Fixed `visit` lookup issues on gcc 7 & 8
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/870). Thanks @medithe.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed linkage errors on older gcc.
- Prevented `fmt/range.h` from specializing `fmt::basic_string_view`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/865,
https://github.com/fmtlib/fmt/pull/868). Thanks @hhggit.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved error message when formatting unknown types
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/872). Thanks @foonathan.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Disabled templated user-defined literals when compiled under nvcc
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/875). Thanks @CandyGumdrop.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed `format_to` formatting to `wmemory_buffer`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/874).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 5.2.0 - 2018-09-13
- Optimized format string parsing and argument processing which
resulted in up to 5x speed up on long format strings and significant
performance boost on various benchmarks. For example, version 5.2 is
2.22x faster than 5.1 on decimal integer formatting with `format_to`
(macOS, clang-902.0.39.2):
Update ChangeLog.md
2023-09-04 15:10:34 +00:00
| Method | Time, s | Speedup |
| -------------------------- | --------------: | ------: |
| fmt::format 5.1 | 0.58 | |
| fmt::format 5.2 | 0.35 | 1.66x |
| fmt::format_to 5.1 | 0.51 | |
| fmt::format_to 5.2 | 0.23 | 2.22x |
| sprintf | 0.71 | |
| std::to_string | 1.01 | |
| std::stringstream | 1.73 | |
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- Changed the `fmt` macro from opt-out to opt-in to prevent name
collisions. To enable it define the `FMT_STRING_ALIAS` macro to 1
before including `fmt/format.h`:
```c++
#define FMT_STRING_ALIAS 1
#include <fmt/format.h>
std::string answer = format(fmt("{}"), 42);
```
- Added compile-time format string checks to `format_to` overload that
takes `fmt::memory_buffer`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/783):
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2023-09-04 14:07:24 +00:00
```c++
fmt::memory_buffer buf;
// Compile-time error: invalid type specifier.
fmt::format_to(buf, fmt("{:d}"), "foo");
```
- Moved experimental color support to `fmt/color.h` and enabled the
new API by default. The old API can be enabled by defining the
`FMT_DEPRECATED_COLORS` macro.
- Added formatting support for types explicitly convertible to
`fmt::string_view`:
```c++
struct foo {
explicit operator fmt::string_view() const { return "foo"; }
};
auto s = format("{}", foo());
```
In particular, this makes formatting function work with
`folly::StringPiece`.
- Implemented preliminary support for `char*_t` by replacing the
`format` function overloads with a single function template
parameterized on the string type.
- Added support for dynamic argument lists
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/814,
https://github.com/fmtlib/fmt/pull/819). Thanks @MikePopoloski.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Reduced executable size overhead for embedded targets using newlib
nano by making locale dependency optional
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/839). Thanks @teajay-fr.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Keep `noexcept` specifier when exceptions are disabled
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/801,
https://github.com/fmtlib/fmt/pull/810). Thanks @qis.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed formatting of user-defined types providing `operator<<` with
Simplify URLs
2023-09-04 17:00:13 +00:00
`format_to_n` (https://github.com/fmtlib/fmt/pull/806).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @mkurdej.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed dynamic linkage of new symbols
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/808).
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2023-09-04 14:07:24 +00:00
- Fixed global initialization issue
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/807):
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2023-09-04 14:07:24 +00:00
```c++
// This works on compilers with constexpr support.
static const std::string answer = fmt::format("{}", 42);
```
- Fixed various compiler warnings and errors
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/804,
https://github.com/fmtlib/fmt/issues/809,
https://github.com/fmtlib/fmt/pull/811,
https://github.com/fmtlib/fmt/issues/822,
https://github.com/fmtlib/fmt/pull/827,
https://github.com/fmtlib/fmt/issues/830,
https://github.com/fmtlib/fmt/pull/838,
https://github.com/fmtlib/fmt/issues/843,
https://github.com/fmtlib/fmt/pull/844,
https://github.com/fmtlib/fmt/issues/851,
https://github.com/fmtlib/fmt/pull/852,
https://github.com/fmtlib/fmt/pull/854).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @henryiii, @medithe, and @eliasdaler.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 5.1.0 - 2018-07-05
- Added experimental support for RGB color output enabled with the
`FMT_EXTENDED_COLORS` macro:
```c++
#define FMT_EXTENDED_COLORS
#define FMT_HEADER_ONLY // or compile fmt with FMT_EXTENDED_COLORS defined
#include <fmt/format.h>
fmt::print(fmt::color::steel_blue, "Some beautiful text");
```
The old API (the `print_colored` and `vprint_colored` functions and
the `color` enum) is now deprecated.
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/762
https://github.com/fmtlib/fmt/pull/767). thanks @Remotion.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added quotes to strings in ranges and tuples
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/766). Thanks @Remotion.
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2023-09-04 14:07:24 +00:00
- Made `format_to` work with `basic_memory_buffer`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/776).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added `vformat_to_n` and `wchar_t` overload of `format_to_n`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/764,
https://github.com/fmtlib/fmt/issues/769).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made `is_range` and `is_tuple_like` part of public (experimental)
API to allow specialization for user-defined types
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/751,
https://github.com/fmtlib/fmt/pull/759). Thanks @drrlvn.
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2023-09-04 14:07:24 +00:00
- Added more compilers to continuous integration and increased
`FMT_PEDANTIC` warning levels
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/736). Thanks @eliaskosunen.
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2023-09-04 14:07:24 +00:00
- Fixed compilation with MSVC 2013.
- Fixed handling of user-defined types in `format_to`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/793).
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2023-09-04 14:07:24 +00:00
- Forced linking of inline `vformat` functions into the library
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/795).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed incorrect call to on_align in `'{:}='`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/750).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed floating-point formatting to a non-back_insert_iterator with
sign & numeric alignment specified
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/756).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed formatting to an array with `format_to_n`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/778).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed formatting of more than 15 named arguments
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/754).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of compile-time strings when including
Simplify URLs
2023-09-04 17:00:13 +00:00
`fmt/ostream.h`. (https://github.com/fmtlib/fmt/issues/768).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed various compiler warnings and errors
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/742,
https://github.com/fmtlib/fmt/issues/748,
https://github.com/fmtlib/fmt/issues/752,
https://github.com/fmtlib/fmt/issues/770,
https://github.com/fmtlib/fmt/pull/775,
https://github.com/fmtlib/fmt/issues/779,
https://github.com/fmtlib/fmt/pull/780,
https://github.com/fmtlib/fmt/pull/790,
https://github.com/fmtlib/fmt/pull/792,
https://github.com/fmtlib/fmt/pull/800).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @Remotion, @gabime, @foonathan, @Dark-Passenger and @0x8000-0000.
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2023-09-04 14:07:24 +00:00
# 5.0.0 - 2018-05-21
- Added a requirement for partial C++11 support, most importantly
variadic templates and type traits, and dropped `FMT_VARIADIC_*`
emulation macros. Variadic templates are available since GCC 4.4,
Clang 2.9 and MSVC 18.0 (2013). For older compilers use {fmt}
[version 4.x](https://github.com/fmtlib/fmt/releases/tag/4.1.0)
which continues to be maintained and works with C++98 compilers.
- Renamed symbols to follow standard C++ naming conventions and
proposed a subset of the library for standardization in [P0645R2
Text Formatting](https://wg21.link/P0645).
- Implemented `constexpr` parsing of format strings and [compile-time
format string
checks](https://fmt.dev/latest/api.html#compile-time-format-string-checks).
For example
```c++
#include <fmt/format.h>
std::string s = format(fmt("{:d}"), "foo");
```
gives a compile-time error because `d` is an invalid specifier for
strings ([godbolt](https://godbolt.org/g/rnCy9Q)):
...
<source>:4:19: note: in instantiation of function template specialization 'fmt::v5::format<S, char [4]>' requested here
std::string s = format(fmt("{:d}"), "foo");
^
format.h:1337:13: note: non-constexpr function 'on_error' cannot be used in a constant expression
handler.on_error("invalid type specifier");
Compile-time checks require relaxed `constexpr` (C++14 feature)
support. If the latter is not available, checks will be performed at
runtime.
- Separated format string parsing and formatting in the extension API
to enable compile-time format string processing. For example
```c++
struct Answer {};
namespace fmt {
template <>
struct formatter<Answer> {
constexpr auto parse(parse_context& ctx) {
auto it = ctx.begin();
spec = *it;
if (spec != 'd' && spec != 's')
throw format_error("invalid specifier");
return ++it;
}
template <typename FormatContext>
auto format(Answer, FormatContext& ctx) {
return spec == 's' ?
format_to(ctx.begin(), "{}", "fourty-two") :
format_to(ctx.begin(), "{}", 42);
}
char spec = 0;
};
}
std::string s = format(fmt("{:x}"), Answer());
```
gives a compile-time error due to invalid format specifier
([godbolt](https://godbolt.org/g/2jQ1Dv)):
...
<source>:12:45: error: expression '<throw-expression>' is not a constant expression
throw format_error("invalid specifier");
- Added [iterator
support](https://fmt.dev/latest/api.html#output-iterator-support):
```c++
#include <vector>
#include <fmt/format.h>
std::vector<char> out;
fmt::format_to(std::back_inserter(out), "{}", 42);
```
- Added the
[format_to_n](https://fmt.dev/latest/api.html#_CPPv2N3fmt11format_to_nE8OutputItNSt6size_tE11string_viewDpRK4Args)
function that restricts the output to the specified number of
Simplify URLs
2023-09-04 17:00:13 +00:00
characters (https://github.com/fmtlib/fmt/issues/298):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
char out[4];
fmt::format_to_n(out, sizeof(out), "{}", 12345);
// out == "1234" (without terminating '\0')
```
Simplify URLs
2023-09-04 17:00:13 +00:00
- Added the [formatted_size](
https://fmt.dev/latest/api.html#_CPPv2N3fmt14formatted_sizeE11string_viewDpRK4Args)
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2023-09-04 14:07:24 +00:00
function for computing the output size:
```c++
#include <fmt/format.h>
auto size = fmt::formatted_size("{}", 12345); // size == 5
```
- Improved compile times by reducing dependencies on standard headers
and providing a lightweight [core
API](https://fmt.dev/latest/api.html#core-api):
```c++
#include <fmt/core.h>
fmt::print("The answer is {}.", 42);
```
See [Compile time and code
bloat](https://github.com/fmtlib/fmt#compile-time-and-code-bloat).
Simplify URLs
2023-09-04 17:00:13 +00:00
- Added the [make_format_args](
https://fmt.dev/latest/api.html#_CPPv2N3fmt16make_format_argsEDpRK4Args)
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
function for capturing formatting arguments:
```c++
// Prints formatted error message.
void vreport_error(const char *format, fmt::format_args args) {
fmt::print("Error: ");
fmt::vprint(format, args);
}
template <typename... Args>
void report_error(const char *format, const Args & ... args) {
vreport_error(format, fmt::make_format_args(args...));
}
```
- Added the `make_printf_args` function for capturing `printf`
Simplify URLs
2023-09-04 17:00:13 +00:00
arguments (https://github.com/fmtlib/fmt/issues/687,
https://github.com/fmtlib/fmt/pull/694). Thanks @Kronuz.
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2023-09-04 14:07:24 +00:00
- Added prefix `v` to non-variadic functions taking `format_args` to
distinguish them from variadic ones:
```c++
std::string vformat(string_view format_str, format_args args);
template <typename... Args>
std::string format(string_view format_str, const Args & ... args);
```
- Added experimental support for formatting ranges, containers and
tuple-like types in `fmt/ranges.h`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/735):
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2023-09-04 14:07:24 +00:00
```c++
#include <fmt/ranges.h>
std::vector<int> v = {1, 2, 3};
fmt::print("{}", v); // prints {1, 2, 3}
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @Remotion.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Implemented `wchar_t` date and time formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/712):
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2023-09-04 14:07:24 +00:00
```c++
#include <fmt/time.h>
std::time_t t = std::time(nullptr);
auto s = fmt::format(L"The date is {:%Y-%m-%d}.", *std::localtime(&t));
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @DanielaE.
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2023-09-04 14:07:24 +00:00
- Provided more wide string overloads
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/724). Thanks @DanielaE.
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2023-09-04 14:07:24 +00:00
- Switched from a custom null-terminated string view class to
`string_view` in the format API and provided `fmt::string_view`
which implements a subset of `std::string_view` API for pre-C++17
systems.
- Added support for `std::experimental::string_view`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/607):
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2023-09-04 14:07:24 +00:00
```c++
#include <fmt/core.h>
#include <experimental/string_view>
fmt::print("{}", std::experimental::string_view("foo"));
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @virgiliofornazin.
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2023-09-04 14:07:24 +00:00
- Allowed mixing named and automatic arguments:
```c++
fmt::format("{} {two}", 1, fmt::arg("two", 2));
```
- Removed the write API in favor of the [format
API](https://fmt.dev/latest/api.html#format-api) with compile-time
handling of format strings.
- Disallowed formatting of multibyte strings into a wide character
Simplify URLs
2023-09-04 17:00:13 +00:00
target (https://github.com/fmtlib/fmt/pull/606).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved documentation
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/515,
https://github.com/fmtlib/fmt/issues/614,
https://github.com/fmtlib/fmt/pull/617,
https://github.com/fmtlib/fmt/pull/661,
https://github.com/fmtlib/fmt/pull/680).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @ibell, @mihaitodor and @johnthagen.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Implemented more efficient handling of large number of format
arguments.
- Introduced an inline namespace for symbol versioning.
- Added debug postfix `d` to the `fmt` library name
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/636).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Removed unnecessary `fmt/` prefix in includes
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/397). Thanks @chronoxor.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Moved `fmt/*.h` to `include/fmt/*.h` to prevent irrelevant files and
directories appearing on the include search paths when fmt is used
as a subproject and moved source files to the `src` directory.
- Added qmake project file `support/fmt.pro`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/641). Thanks @cowo78.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added Gradle build file `support/build.gradle`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/649). Thanks @luncliff.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Removed `FMT_CPPFORMAT` CMake option.
- Fixed a name conflict with the macro `CHAR_WIDTH` in glibc
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/616). Thanks @aroig.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of nested braces in `fmt::join`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/638).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added `SOURCELINK_SUFFIX` for compatibility with Sphinx 1.5
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/497). Thanks @ginggs.
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2023-09-04 14:07:24 +00:00
- Added a missing `inline` in the header-only mode
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/626). Thanks @aroig.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed various compiler warnings
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/640,
https://github.com/fmtlib/fmt/pull/656,
https://github.com/fmtlib/fmt/pull/679,
https://github.com/fmtlib/fmt/pull/681,
https://github.com/fmtlib/fmt/pull/705,
https://github.com/fmtlib/fmt/issues/715,
https://github.com/fmtlib/fmt/pull/717,
https://github.com/fmtlib/fmt/pull/720,
https://github.com/fmtlib/fmt/pull/723,
https://github.com/fmtlib/fmt/pull/726,
https://github.com/fmtlib/fmt/pull/730,
https://github.com/fmtlib/fmt/pull/739).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @peterbell10, @LarsGullik, @foonathan, @eliaskosunen,
@christianparpart, @DanielaE and @mwinterb.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Worked around an MSVC bug and fixed several warnings
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/653). Thanks @alabuzhev.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Worked around GCC bug 67371
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/682).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed compilation with `-fno-exceptions`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/655). Thanks @chenxiaolong.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Made `constexpr remove_prefix` gcc version check tighter
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/648).
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2023-09-04 14:07:24 +00:00
- Renamed internal type enum constants to prevent collision with
poorly written C libraries
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/644).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added detection of `wostream operator<<`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/650).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed compilation on OpenBSD
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/660). Thanks @hubslave.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed compilation on FreeBSD 12
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/732). Thanks @dankm.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed compilation when there is a mismatch between `-std` options
between the library and user code
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/664).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed compilation with GCC 7 and `-std=c++11`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/734).
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2023-09-04 14:07:24 +00:00
- Improved generated binary code on GCC 7 and older
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/668).
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2023-09-04 14:07:24 +00:00
- Fixed handling of numeric alignment with no width
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/675).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of empty strings in UTF8/16 converters
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/676). Thanks @vgalka-sl.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed formatting of an empty `string_view`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/689).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed detection of `string_view` on libc++
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/686).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
Simplify URLs
2023-09-04 17:00:13 +00:00
- Fixed DLL issues (https://github.com/fmtlib/fmt/pull/696).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @sebkoenig.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed compile checks for mixing narrow and wide strings
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/690).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Disabled unsafe implicit conversion to `std::string`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/729).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of reused format specs (as in `fmt::join`) for
Simplify URLs
2023-09-04 17:00:13 +00:00
pointers (https://github.com/fmtlib/fmt/pull/725). Thanks @mwinterb.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed installation of `fmt/ranges.h`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/738). Thanks @sv1990.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 4.1.0 - 2017-12-20
- Added `fmt::to_wstring()` in addition to `fmt::to_string()`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/559). Thanks @alabuzhev.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support for C++17 `std::string_view`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/571 and
https://github.com/fmtlib/fmt/pull/578).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @thelostt and @mwinterb.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Enabled stream exceptions to catch errors
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/581). Thanks @crusader-mike.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Allowed formatting of class hierarchies with `fmt::format_arg()`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/547). Thanks @rollbear.
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2023-09-04 14:07:24 +00:00
- Removed limitations on character types
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/563). Thanks @Yelnats321.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Conditionally enabled use of `std::allocator_traits`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/583). Thanks @mwinterb.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support for `const` variadic member function emulation with
`FMT_VARIADIC_CONST`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/591). Thanks @ludekvodicka.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Various bugfixes: bad overflow check, unsupported implicit type
conversion when determining formatting function, test segfaults
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/551), ill-formed
macros (https://github.com/fmtlib/fmt/pull/542) and
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2023-09-04 14:07:24 +00:00
ambiguous overloads
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/580). Thanks @xylosper.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Prevented warnings on MSVC
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/605,
https://github.com/fmtlib/fmt/pull/602, and
https://github.com/fmtlib/fmt/pull/545), clang
(https://github.com/fmtlib/fmt/pull/582), GCC
(https://github.com/fmtlib/fmt/issues/573), various
conversion warnings (https://github.com/fmtlib/fmt/pull/609,
https://github.com/fmtlib/fmt/pull/567,
https://github.com/fmtlib/fmt/pull/553 and
https://github.com/fmtlib/fmt/pull/553), and added
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2023-09-04 14:07:24 +00:00
`override` and `[[noreturn]]`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/549 and
https://github.com/fmtlib/fmt/issues/555).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @alabuzhev, @virgiliofornazin, @alexanderbock, @yumetodo, @VaderY,
@jpcima, @thelostt and @Manu343726.
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2023-09-04 14:07:24 +00:00
- Improved CMake: Used `GNUInstallDirs` to set installation location
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/610) and fixed warnings
(https://github.com/fmtlib/fmt/pull/536 and
https://github.com/fmtlib/fmt/pull/556).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @mikecrowe, @evgen231 and @henryiii.
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2023-09-04 14:07:24 +00:00
# 4.0.0 - 2017-06-27
- Removed old compatibility headers `cppformat/*.h` and CMake options
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/527). Thanks @maddinat0r.
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2023-09-04 14:07:24 +00:00
- Added `string.h` containing `fmt::to_string()` as alternative to
`std::to_string()` as well as other string writer functionality
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/326 and
https://github.com/fmtlib/fmt/pull/441):
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2023-09-04 14:07:24 +00:00
```c++
#include "fmt/string.h"
std::string answer = fmt::to_string(42);
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @glebov-andrey.
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2023-09-04 14:07:24 +00:00
- Moved `fmt::printf()` to new `printf.h` header and allowed `%s` as
Simplify URLs
2023-09-04 17:00:13 +00:00
generic specifier (https://github.com/fmtlib/fmt/pull/453),
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
made `%.f` more conformant to regular `printf()`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/490), added custom
writer support (https://github.com/fmtlib/fmt/issues/476)
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2023-09-04 14:07:24 +00:00
and implemented missing custom argument formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/339 and
https://github.com/fmtlib/fmt/pull/340):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
#include "fmt/printf.h"
// %s format specifier can be used with any argument type.
fmt::printf("%s", 42);
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @mojoBrendan, @manylegged and @spacemoose.
Simplify URLs
2023-09-04 17:00:13 +00:00
See also https://github.com/fmtlib/fmt/issues/360,
https://github.com/fmtlib/fmt/issues/335 and
https://github.com/fmtlib/fmt/issues/331.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added `container.h` containing a `BasicContainerWriter` to write to
containers like `std::vector`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/450). Thanks @polyvertex.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added `fmt::join()` function that takes a range and formats its
elements separated by a given string
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/466):
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2023-09-04 14:07:24 +00:00
```c++
#include "fmt/format.h"
std::vector<double> v = {1.2, 3.4, 5.6};
// Prints "(+01.20, +03.40, +05.60)".
fmt::print("({:+06.2f})", fmt::join(v.begin(), v.end(), ", "));
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @olivier80.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support for custom formatting specifications to simplify
customization of built-in formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/444). Thanks @polyvertex.
See also https://github.com/fmtlib/fmt/issues/439.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added `fmt::format_system_error()` for error code formatting
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/323 and
https://github.com/fmtlib/fmt/pull/526). Thanks @maddinat0r.
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2023-09-04 14:07:24 +00:00
- Added thread-safe `fmt::localtime()` and `fmt::gmtime()` as
replacement for the standard version to `time.h`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/396). Thanks @codicodi.
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2023-09-04 14:07:24 +00:00
- Internal improvements to `NamedArg` and `ArgLists`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/389 and
https://github.com/fmtlib/fmt/pull/390). Thanks @chronoxor.
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2023-09-04 14:07:24 +00:00
- Fixed crash due to bug in `FormatBuf`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/493). Thanks @effzeh. See also
https://github.com/fmtlib/fmt/issues/480 and
https://github.com/fmtlib/fmt/issues/491.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of wide strings in `fmt::StringWriter`.
- Improved compiler error messages
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/357).
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2023-09-04 14:07:24 +00:00
- Fixed various warnings and issues with various compilers
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/494,
https://github.com/fmtlib/fmt/pull/499,
https://github.com/fmtlib/fmt/pull/483,
https://github.com/fmtlib/fmt/pull/485,
https://github.com/fmtlib/fmt/pull/482,
https://github.com/fmtlib/fmt/pull/475,
https://github.com/fmtlib/fmt/pull/473 and
https://github.com/fmtlib/fmt/pull/414).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @chronoxor, @zhaohuaxishi, @pkestene, @dschmidt and @0x414c.
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2023-09-04 14:07:24 +00:00
- Improved CMake: targets are now namespaced
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/511 and
https://github.com/fmtlib/fmt/pull/513), supported
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2023-09-04 14:07:24 +00:00
header-only `printf.h`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/354), fixed issue with
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2023-09-04 14:07:24 +00:00
minimal supported library subset
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/418,
https://github.com/fmtlib/fmt/pull/419 and
https://github.com/fmtlib/fmt/pull/420).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @bjoernthiel, @niosHD, @LogicalKnight and @alabuzhev.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
Simplify URLs
2023-09-04 17:00:13 +00:00
- Improved documentation (https://github.com/fmtlib/fmt/pull/393).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @pwm1234.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 3.0.2 - 2017-06-14
- Added `FMT_VERSION` macro
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/411).
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2023-09-04 14:07:24 +00:00
- Used `FMT_NULL` instead of literal `0`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/409). Thanks @alabuzhev.
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2023-09-04 14:07:24 +00:00
- Added extern templates for `format_float`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/413).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed implicit conversion issue
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/507).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed signbit detection
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/423).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed naming collision
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/425).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed missing intrinsic for C++/CLI
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/457). Thanks @calumr.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed Android detection
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/458). Thanks @Gachapen.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Use lean `windows.h` if not in header-only mode
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/503). Thanks @Quentin01.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed issue with CMake exporting C++11 flag
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/455). Thanks @EricWF.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed issue with nvcc and MSVC compiler bug and MinGW
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/505).
- Fixed DLL issues (https://github.com/fmtlib/fmt/pull/469 and
https://github.com/fmtlib/fmt/pull/502).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @richardeakin and @AndreasSchoenle.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed test compilation under FreeBSD
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/433).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed various warnings
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/403,
https://github.com/fmtlib/fmt/pull/410 and
https://github.com/fmtlib/fmt/pull/510).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @Lecetem, @chenhayat and @trozen.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Worked around a broken `__builtin_clz` in clang with MS codegen
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/519).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Removed redundant include
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/479).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed documentation issues.
# 3.0.1 - 2016-11-01
- Fixed handling of thousands separator
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/353).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed handling of `unsigned char` strings
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/373).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Corrected buffer growth when formatting time
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/367).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Removed warnings under MSVC and clang
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/318,
https://github.com/fmtlib/fmt/issues/250, also merged
https://github.com/fmtlib/fmt/pull/385 and
https://github.com/fmtlib/fmt/pull/361).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @jcelerier and @nmoehrle.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed compilation issues under Android
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/327,
https://github.com/fmtlib/fmt/issues/345 and
https://github.com/fmtlib/fmt/pull/381), FreeBSD
(https://github.com/fmtlib/fmt/pull/358), Cygwin
(https://github.com/fmtlib/fmt/issues/388), MinGW
(https://github.com/fmtlib/fmt/issues/355) as well as other
issues (https://github.com/fmtlib/fmt/issues/350,
https://github.com/fmtlib/fmt/issues/355,
https://github.com/fmtlib/fmt/pull/348,
https://github.com/fmtlib/fmt/pull/402,
https://github.com/fmtlib/fmt/pull/405).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @dpantele, @hghwng, @arvedarved, @LogicalKnight and @JanHellwig.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed some documentation issues and extended specification
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/320,
https://github.com/fmtlib/fmt/pull/333,
https://github.com/fmtlib/fmt/issues/347,
https://github.com/fmtlib/fmt/pull/362). Thanks @smellman.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 3.0.0 - 2016-05-07
- The project has been renamed from C++ Format (cppformat) to fmt for
consistency with the used namespace and macro prefix
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/307). Library headers
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2023-09-04 14:07:24 +00:00
are now located in the `fmt` directory:
```c++
#include "fmt/format.h"
```
Including `format.h` from the `cppformat` directory is deprecated
but works via a proxy header which will be removed in the next major
version.
The documentation is now available at <https://fmt.dev>.
- Added support for
[strftime](http://en.cppreference.com/w/cpp/chrono/c/strftime)-like
[date and time
formatting](https://fmt.dev/3.0.0/api.html#date-and-time-formatting)
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/283):
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2023-09-04 14:07:24 +00:00
```c++
#include "fmt/time.h"
std::time_t t = std::time(nullptr);
// Prints "The date is 2016-04-29." (with the current date)
fmt::print("The date is {:%Y-%m-%d}.", *std::localtime(&t));
```
- `std::ostream` support including formatting of user-defined types
that provide overloaded `operator<<` has been moved to
`fmt/ostream.h`:
```c++
#include "fmt/ostream.h"
class Date {
int year_, month_, day_;
public:
Date(int year, int month, int day) : year_(year), month_(month), day_(day) {}
friend std::ostream &operator<<(std::ostream &os, const Date &d) {
return os << d.year_ << '-' << d.month_ << '-' << d.day_;
}
};
std::string s = fmt::format("The date is {}", Date(2012, 12, 9));
// s == "The date is 2012-12-9"
```
- Added support for [custom argument
formatters](https://fmt.dev/3.0.0/api.html#argument-formatters)
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/235).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added support for locale-specific integer formatting with the `n`
Simplify URLs
2023-09-04 17:00:13 +00:00
specifier (https://github.com/fmtlib/fmt/issues/305):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
std::setlocale(LC_ALL, "en_US.utf8");
fmt::print("cppformat: {:n}\n", 1234567); // prints 1,234,567
```
- Sign is now preserved when formatting an integer with an incorrect
`printf` format specifier
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/265):
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2023-09-04 14:07:24 +00:00
```c++
fmt::printf("%lld", -42); // prints -42
```
Note that it would be an undefined behavior in `std::printf`.
- Length modifiers such as `ll` are now optional in printf formatting
functions and the correct type is determined automatically
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/255):
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2023-09-04 14:07:24 +00:00
```c++
fmt::printf("%d", std::numeric_limits<long long>::max());
```
Note that it would be an undefined behavior in `std::printf`.
- Added initial support for custom formatters
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/231).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed detection of user-defined literal support on Intel C++
Simplify URLs
2023-09-04 17:00:13 +00:00
compiler (https://github.com/fmtlib/fmt/issues/311,
https://github.com/fmtlib/fmt/pull/312).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @dean0x7d and @speth.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Reduced compile time
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/243,
https://github.com/fmtlib/fmt/pull/249,
https://github.com/fmtlib/fmt/issues/317):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
Simplify URLs
2023-09-04 17:00:13 +00:00
![](https://cloud.githubusercontent.com/assets/4831417/11614060/b9e826d2-9c36-11e5-8666-d4131bf503ef.png)
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
Simplify URLs
2023-09-04 17:00:13 +00:00
![](https://cloud.githubusercontent.com/assets/4831417/11614080/6ac903cc-9c37-11e5-8165-26df6efae364.png)
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @dean0x7d.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
Simplify URLs
2023-09-04 17:00:13 +00:00
- Compile test fixes (https://github.com/fmtlib/fmt/pull/313).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @dean0x7d.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
Simplify URLs
2023-09-04 17:00:13 +00:00
- Documentation fixes (https://github.com/fmtlib/fmt/pull/239,
https://github.com/fmtlib/fmt/issues/248,
https://github.com/fmtlib/fmt/issues/252,
https://github.com/fmtlib/fmt/pull/258,
https://github.com/fmtlib/fmt/issues/260,
https://github.com/fmtlib/fmt/issues/301,
https://github.com/fmtlib/fmt/pull/309).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @ReadmeCritic @Gachapen and @jwilk.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed compiler and sanitizer warnings
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/244,
https://github.com/fmtlib/fmt/pull/256,
https://github.com/fmtlib/fmt/pull/259,
https://github.com/fmtlib/fmt/issues/263,
https://github.com/fmtlib/fmt/issues/274,
https://github.com/fmtlib/fmt/pull/277,
https://github.com/fmtlib/fmt/pull/286,
https://github.com/fmtlib/fmt/issues/291,
https://github.com/fmtlib/fmt/issues/296,
https://github.com/fmtlib/fmt/issues/308).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @mwinterb, @pweiskircher and @Naios.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved compatibility with Windows Store apps
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/280,
https://github.com/fmtlib/fmt/pull/285) Thanks @mwinterb.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added tests of compatibility with older C++ standards
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/273). Thanks @niosHD.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed Android build
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/271). Thanks @newnon.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Changed `ArgMap` to be backed by a vector instead of a map.
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/261,
https://github.com/fmtlib/fmt/pull/262). Thanks @mwinterb.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added `fprintf` overload that writes to a `std::ostream`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/251).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @nickhutchinson.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Export symbols when building a Windows DLL
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/245).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @macdems.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed compilation on Cygwin
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/304).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Implemented a workaround for a bug in Apple LLVM version 4.2 of
Simplify URLs
2023-09-04 17:00:13 +00:00
clang (https://github.com/fmtlib/fmt/issues/276).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Implemented a workaround for Google Test bug
Simplify URLs
2023-09-04 17:00:13 +00:00
https://github.com/google/googletest/issues/705 on gcc 6
(https://github.com/fmtlib/fmt/issues/268). Thanks @octoploid.
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2023-09-04 14:07:24 +00:00
- Removed Biicode support because the latter has been discontinued.
# 2.1.1 - 2016-04-11
- The install location for generated CMake files is now configurable
via the `FMT_CMAKE_DIR` CMake variable
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/299). Thanks @niosHD.
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2023-09-04 14:07:24 +00:00
- Documentation fixes
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/252).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 2.1.0 - 2016-03-21
- Project layout and build system improvements
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/267):
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2023-09-04 14:07:24 +00:00
- The code have been moved to the `cppformat` directory. Including
`format.h` from the top-level directory is deprecated but works
via a proxy header which will be removed in the next major
version.
- C++ Format CMake targets now have proper interface definitions.
- Installed version of the library now supports the header-only
configuration.
- Targets `doc`, `install`, and `test` are now disabled if C++
Format is included as a CMake subproject. They can be enabled by
setting `FMT_DOC`, `FMT_INSTALL`, and `FMT_TEST` in the parent
project.
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @niosHD.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 2.0.1 - 2016-03-13
- Improved CMake find and package support
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/264). Thanks @niosHD.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fix compile error with Android NDK and mingw32
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/241). Thanks @Gachapen.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Documentation fixes
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/248,
https://github.com/fmtlib/fmt/issues/260).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
# 2.0.0 - 2015-12-01
## General
- \[Breaking\] Named arguments
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/169,
https://github.com/fmtlib/fmt/pull/173,
https://github.com/fmtlib/fmt/pull/174):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
fmt::print("The answer is {answer}.", fmt::arg("answer", 42));
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @jamboree.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- \[Experimental\] User-defined literals for format and named
Simplify URLs
2023-09-04 17:00:13 +00:00
arguments (https://github.com/fmtlib/fmt/pull/204,
https://github.com/fmtlib/fmt/pull/206,
https://github.com/fmtlib/fmt/pull/207):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
using namespace fmt::literals;
fmt::print("The answer is {answer}.", "answer"_a=42);
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @dean0x7d.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- \[Breaking\] Formatting of more than 16 arguments is now supported
when using variadic templates
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/141). Thanks @Shauren.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Runtime width specification
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/168):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
fmt::format("{0:{1}}", 42, 5); // gives " 42"
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @jamboree.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- \[Breaking\] Enums are now formatted with an overloaded
`std::ostream` insertion operator (`operator<<`) if available
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/232).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- \[Breaking\] Changed default `bool` format to textual, \"true\" or
Simplify URLs
2023-09-04 17:00:13 +00:00
\"false\" (https://github.com/fmtlib/fmt/issues/170):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
fmt::print("{}", true); // prints "true"
```
To print `bool` as a number use numeric format specifier such as
`d`:
```c++
fmt::print("{:d}", true); // prints "1"
```
- `fmt::printf` and `fmt::sprintf` now support formatting of `bool`
with the `%s` specifier giving textual output, \"true\" or \"false\"
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/223):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
fmt::printf("%s", true); // prints "true"
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @LarsGullik.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- \[Breaking\] `signed char` and `unsigned char` are now formatted as
integers by default
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/217).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- \[Breaking\] Pointers to C strings can now be formatted with the `p`
Simplify URLs
2023-09-04 17:00:13 +00:00
specifier (https://github.com/fmtlib/fmt/pull/223):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
fmt::print("{:p}", "test"); // prints pointer value
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @LarsGullik.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- \[Breaking\] `fmt::printf` and `fmt::sprintf` now print null
pointers as `(nil)` and null strings as `(null)` for consistency
Simplify URLs
2023-09-04 17:00:13 +00:00
with glibc (https://github.com/fmtlib/fmt/pull/226).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @LarsGullik.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- \[Breaking\] `fmt::(s)printf` now supports formatting of objects of
user-defined types that provide an overloaded `std::ostream`
insertion operator (`operator<<`)
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/201):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
fmt::printf("The date is %s", Date(2012, 12, 9));
```
- \[Breaking\] The `Buffer` template is now part of the public API and
can be used to implement custom memory buffers
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/140). Thanks @polyvertex.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- \[Breaking\] Improved compatibility between `BasicStringRef` and
Simplify URLs
2023-09-04 17:00:13 +00:00
[std::experimental::basic_string_view](
http://en.cppreference.com/w/cpp/experimental/basic_string_view)
(https://github.com/fmtlib/fmt/issues/100,
https://github.com/fmtlib/fmt/issues/159,
https://github.com/fmtlib/fmt/issues/183):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Comparison operators now compare string content, not pointers
- `BasicStringRef::c_str` replaced by `BasicStringRef::data`
- `BasicStringRef` is no longer assumed to be null-terminated
References to null-terminated strings are now represented by a new
class, `BasicCStringRef`.
- Dependency on pthreads introduced by Google Test is now optional
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/185).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- New CMake options `FMT_DOC`, `FMT_INSTALL` and `FMT_TEST` to control
generation of `doc`, `install` and `test` targets respectively, on
Simplify URLs
2023-09-04 17:00:13 +00:00
by default (https://github.com/fmtlib/fmt/issues/197,
https://github.com/fmtlib/fmt/issues/198,
https://github.com/fmtlib/fmt/issues/200). Thanks @maddinat0r.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- `noexcept` is now used when compiling with MSVC2015
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/215). Thanks @dmkrepo.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added an option to disable use of `windows.h` when
`FMT_USE_WINDOWS_H` is defined as 0 before including `format.h`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/171). Thanks @alfps.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- \[Breaking\] `windows.h` is now included with `NOMINMAX` unless
`FMT_WIN_MINMAX` is defined. This is done to prevent breaking code
using `std::min` and `std::max` and only affects the header-only
Simplify URLs
2023-09-04 17:00:13 +00:00
configuration (https://github.com/fmtlib/fmt/issues/152,
https://github.com/fmtlib/fmt/pull/153,
https://github.com/fmtlib/fmt/pull/154). Thanks @DevO2012.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved support for custom character types
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/171). Thanks @alfps.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added an option to disable use of IOStreams when `FMT_USE_IOSTREAMS`
is defined as 0 before including `format.h`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/205,
https://github.com/fmtlib/fmt/pull/208). Thanks @JodiTheTigger.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved detection of `isnan`, `isinf` and `signbit`.
## Optimization
- Made formatting of user-defined types more efficient with a custom
Simplify URLs
2023-09-04 17:00:13 +00:00
stream buffer (https://github.com/fmtlib/fmt/issues/92,
https://github.com/fmtlib/fmt/pull/230). Thanks @NotImplemented.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Further improved performance of `fmt::Writer` on integer formatting
and fixed a minor regression. Now it is \~7% faster than
`karma::generate` on Karma\'s benchmark
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/186).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- \[Breaking\] Reduced [compiled code
size](https://github.com/fmtlib/fmt#compile-time-and-code-bloat)
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/143,
https://github.com/fmtlib/fmt/pull/149).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
## Distribution
- \[Breaking\] Headers are now installed in
`${CMAKE_INSTALL_PREFIX}/include/cppformat`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/178). Thanks @jackyf.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- \[Breaking\] Changed the library name from `format` to `cppformat`
for consistency with the project name and to avoid potential
Simplify URLs
2023-09-04 17:00:13 +00:00
conflicts (https://github.com/fmtlib/fmt/issues/178).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @jackyf.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- C++ Format is now available in [Debian](https://www.debian.org/)
GNU/Linux
([stretch](https://packages.debian.org/source/stretch/cppformat),
[sid](https://packages.debian.org/source/sid/cppformat)) and derived
distributions such as
[Ubuntu](https://launchpad.net/ubuntu/+source/cppformat) 15.10 and
Simplify URLs
2023-09-04 17:00:13 +00:00
later (https://github.com/fmtlib/fmt/issues/155):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
$ sudo apt-get install libcppformat1-dev
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @jackyf.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- [Packages for Fedora and
RHEL](https://admin.fedoraproject.org/pkgdb/package/cppformat/) are
Cleanup changelog
2023-09-04 16:05:07 +00:00
now available. Thanks Dave Johansen.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- C++ Format can now be installed via [Homebrew](http://brew.sh/) on
Simplify URLs
2023-09-04 17:00:13 +00:00
OS X (https://github.com/fmtlib/fmt/issues/157):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
$ brew install cppformat
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @ortho and Anatoliy Bulukin.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
## Documentation
- Migrated from ReadTheDocs to GitHub Pages for better responsiveness
Simplify URLs
2023-09-04 17:00:13 +00:00
and reliability (https://github.com/fmtlib/fmt/issues/128).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
New documentation address is <http://cppformat.github.io/>.
Simplify URLs
2023-09-04 17:00:13 +00:00
- Added [Building thedocumentation](
https://fmt.dev/2.0.0/usage.html#building-the-documentation)
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
section to the documentation.
- Documentation build script is now compatible with Python 3 and newer
Simplify URLs
2023-09-04 17:00:13 +00:00
pip versions. (https://github.com/fmtlib/fmt/pull/189,
https://github.com/fmtlib/fmt/issues/209).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @JodiTheTigger and @xentec.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Documentation fixes and improvements
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/36,
https://github.com/fmtlib/fmt/issues/75,
https://github.com/fmtlib/fmt/issues/125,
https://github.com/fmtlib/fmt/pull/160,
https://github.com/fmtlib/fmt/pull/161,
https://github.com/fmtlib/fmt/issues/162,
https://github.com/fmtlib/fmt/issues/165,
https://github.com/fmtlib/fmt/issues/210).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @syohex.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed out-of-tree documentation build
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/177). Thanks @jackyf.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
## Fixes
- Fixed `initializer_list` detection
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/136). Thanks @Gachapen.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- \[Breaking\] Fixed formatting of enums with numeric format
specifiers in `fmt::(s)printf`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/131,
https://github.com/fmtlib/fmt/issues/139):
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
```c++
enum { ANSWER = 42 };
fmt::printf("%d", ANSWER);
```
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @Naios.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved compatibility with old versions of MinGW
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/129,
https://github.com/fmtlib/fmt/pull/130,
https://github.com/fmtlib/fmt/issues/132). Thanks @cstamford.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed a compile error on MSVC with disabled exceptions
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/144).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Added a workaround for broken implementation of variadic templates
Simplify URLs
2023-09-04 17:00:13 +00:00
in MSVC2012 (https://github.com/fmtlib/fmt/issues/148).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Placed the anonymous namespace within `fmt` namespace for the
Simplify URLs
2023-09-04 17:00:13 +00:00
header-only configuration (https://github.com/fmtlib/fmt/issues/171).
Thanks @alfps.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed issues reported by Coverity Scan
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/187,
https://github.com/fmtlib/fmt/issues/192).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Implemented a workaround for a name lookup bug in MSVC2010
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/188).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed compiler warnings
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/95,
https://github.com/fmtlib/fmt/issues/96,
https://github.com/fmtlib/fmt/pull/114,
https://github.com/fmtlib/fmt/issues/135,
https://github.com/fmtlib/fmt/issues/142,
https://github.com/fmtlib/fmt/issues/145,
https://github.com/fmtlib/fmt/issues/146,
https://github.com/fmtlib/fmt/issues/158,
https://github.com/fmtlib/fmt/issues/163,
https://github.com/fmtlib/fmt/issues/175,
https://github.com/fmtlib/fmt/issues/190,
https://github.com/fmtlib/fmt/pull/191,
https://github.com/fmtlib/fmt/issues/194,
https://github.com/fmtlib/fmt/pull/196,
https://github.com/fmtlib/fmt/issues/216,
https://github.com/fmtlib/fmt/pull/218,
https://github.com/fmtlib/fmt/pull/220,
https://github.com/fmtlib/fmt/pull/229,
https://github.com/fmtlib/fmt/issues/233,
https://github.com/fmtlib/fmt/issues/234,
https://github.com/fmtlib/fmt/pull/236,
https://github.com/fmtlib/fmt/issues/281,
https://github.com/fmtlib/fmt/issues/289).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @seanmiddleditch, @dixlorenz, @CarterLi, @Naios, @fmatthew5876,
@LevskiWeng, @rpopescu, @gabime, @cubicool, @jkflying, @LogicalKnight,
@inguin and @Jopie64.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed portability issues (mostly causing test failures) on ARM,
ppc64, ppc64le, s390x and SunOS 5.11 i386
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/138,
https://github.com/fmtlib/fmt/issues/179,
https://github.com/fmtlib/fmt/issues/180,
https://github.com/fmtlib/fmt/issues/202,
https://github.com/fmtlib/fmt/issues/225, [Red Hat Bugzilla
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
Bug 1260297](https://bugzilla.redhat.com/show_bug.cgi?id=1260297)).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @Naios, @jackyf and Dave Johansen.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed a name conflict with macro `free` defined in `crtdbg.h` when
Simplify URLs
2023-09-04 17:00:13 +00:00
`_CRTDBG_MAP_ALLOC` is set (https://github.com/fmtlib/fmt/issues/211).
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed shared library build on OS X
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/212). Thanks @dean0x7d.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Fixed an overload conflict on MSVC when `/Zc:wchar_t-` option is
Simplify URLs
2023-09-04 17:00:13 +00:00
specified (https://github.com/fmtlib/fmt/pull/214).
Cleanup changelog
2023-09-04 16:05:07 +00:00
Thanks @slavanap.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved compatibility with MSVC 2008
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/236). Thanks @Jopie64.
Convert changelog to markdown for compatibility with release notes
2023-09-04 14:07:24 +00:00
- Improved compatibility with bcc32
Simplify URLs
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(https://github.com/fmtlib/fmt/issues/227).
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- Fixed `static_assert` detection on Clang
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2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/pull/228). Thanks @dean0x7d.
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# 1.1.0 - 2015-03-06
- Added `BasicArrayWriter`, a class template that provides operations
for formatting and writing data into a fixed-size array
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(https://github.com/fmtlib/fmt/issues/105 and
https://github.com/fmtlib/fmt/issues/122):
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```c++
char buffer[100];
fmt::ArrayWriter w(buffer);
w.write("The answer is {}", 42);
```
- Added [0 A.D.](http://play0ad.com/) and [PenUltima Online
(POL)](http://www.polserver.com/) to the list of notable projects
using C++ Format.
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- C++ Format now uses MSVC intrinsics for better formatting performance
(https://github.com/fmtlib/fmt/pull/115,
https://github.com/fmtlib/fmt/pull/116,
https://github.com/fmtlib/fmt/pull/118 and
https://github.com/fmtlib/fmt/pull/121). Previously these
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optimizations where only used on GCC and Clang.
Thanks @CarterLi and @objectx.
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- CMake install target
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(https://github.com/fmtlib/fmt/pull/119). Thanks @TrentHouliston.
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You can now install C++ Format with `make install` command.
- Improved [Biicode](http://www.biicode.com/) support
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(https://github.com/fmtlib/fmt/pull/98 and
https://github.com/fmtlib/fmt/pull/104).
Cleanup changelog
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Thanks @MariadeAnton and @franramirez688.
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- Improved support for building with [Android NDK](
https://developer.android.com/tools/sdk/ndk/index.html)
(https://github.com/fmtlib/fmt/pull/107). Thanks @newnon.
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The [android-ndk-example](https://github.com/fmtlib/android-ndk-example)
repository provides and example of using C++ Format with Android NDK:
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![](https://raw.githubusercontent.com/fmtlib/android-ndk-example/master/screenshot.png)
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- Improved documentation of `SystemError` and `WindowsError`
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/54).
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- Various code improvements
Simplify URLs
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(https://github.com/fmtlib/fmt/pull/110,
https://github.com/fmtlib/fmt/pull/111
https://github.com/fmtlib/fmt/pull/112). Thanks @CarterLi.
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- Improved compile-time errors when formatting wide into narrow
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strings (https://github.com/fmtlib/fmt/issues/117).
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- Fixed `BasicWriter::write` without formatting arguments when C++11
support is disabled
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(https://github.com/fmtlib/fmt/issues/109).
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- Fixed header-only build on OS X with GCC 4.9
Simplify URLs
2023-09-04 17:00:13 +00:00
(https://github.com/fmtlib/fmt/issues/124).
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- Fixed packaging issues (https://github.com/fmtlib/fmt/issues/94).
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- Added [changelog](https://github.com/fmtlib/fmt/blob/master/ChangeLog.md)
(https://github.com/fmtlib/fmt/issues/103).
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# 1.0.0 - 2015-02-05
- Add support for a header-only configuration when `FMT_HEADER_ONLY`
is defined before including `format.h`:
```c++
#define FMT_HEADER_ONLY
#include "format.h"
```
- Compute string length in the constructor of `BasicStringRef` instead
of the `size` method
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(https://github.com/fmtlib/fmt/issues/79). This eliminates
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size computation for string literals on reasonable optimizing
compilers.
- Fix formatting of types with overloaded `operator <<` for
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`std::wostream` (https://github.com/fmtlib/fmt/issues/86):
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```c++
fmt::format(L"The date is {0}", Date(2012, 12, 9));
```
- Fix linkage of tests on Arch Linux
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(https://github.com/fmtlib/fmt/issues/89).
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- Allow precision specifier for non-float arguments
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(https://github.com/fmtlib/fmt/issues/90):
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```c++
fmt::print("{:.3}\n", "Carpet"); // prints "Car"
```
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- Fix build on Android NDK (https://github.com/fmtlib/fmt/issues/93).
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- Improvements to documentation build procedure.
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- Remove `FMT_SHARED` CMake variable in favor of standard [BUILD_SHARED_LIBS](
http://www.cmake.org/cmake/help/v3.0/variable/BUILD_SHARED_LIBS.html).
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- Fix error handling in `fmt::fprintf`.
- Fix a number of warnings.
# 0.12.0 - 2014-10-25
- \[Breaking\] Improved separation between formatting and buffer
management. `Writer` is now a base class that cannot be instantiated
directly. The new `MemoryWriter` class implements the default buffer
management with small allocations done on stack. So `fmt::Writer`
should be replaced with `fmt::MemoryWriter` in variable
declarations.
Old code:
```c++
fmt::Writer w;
```
New code:
```c++
fmt::MemoryWriter w;
```
If you pass `fmt::Writer` by reference, you can continue to do so:
```c++
void f(fmt::Writer &w);
```
This doesn\'t affect the formatting API.
- Support for custom memory allocators
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(https://github.com/fmtlib/fmt/issues/69)
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- Formatting functions now accept [signed char]{.title-ref} and
[unsigned char]{.title-ref} strings as arguments
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(https://github.com/fmtlib/fmt/issues/73):
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```c++
auto s = format("GLSL version: {}", glGetString(GL_VERSION));
```
- Reduced code bloat. According to the new [benchmark
results](https://github.com/fmtlib/fmt#compile-time-and-code-bloat),
cppformat is close to `printf` and by the order of magnitude better
than Boost Format in terms of compiled code size.
- Improved appearance of the documentation on mobile by using the
[Sphinx Bootstrap
theme](http://ryan-roemer.github.io/sphinx-bootstrap-theme/):
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| Old | New |
| --- | --- |
| ![](https://cloud.githubusercontent.com/assets/576385/4792130/cd256436-5de3-11e4-9a62-c077d0c2b003.png) | ![](https://cloud.githubusercontent.com/assets/576385/4792131/cd29896c-5de3-11e4-8f59-cac952942bf0.png) |
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# 0.11.0 - 2014-08-21
- Safe printf implementation with a POSIX extension for positional
arguments:
```c++
fmt::printf("Elapsed time: %.2f seconds", 1.23);
fmt::printf("%1$s, %3$d %2$s", weekday, month, day);
```
- Arguments of `char` type can now be formatted as integers (Issue
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https://github.com/fmtlib/fmt/issues/55):
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```c++
fmt::format("0x{0:02X}", 'a');
```
- Deprecated parts of the API removed.
- The library is now built and tested on MinGW with Appveyor in
addition to existing test platforms Linux/GCC, OS X/Clang,
Windows/MSVC.
# 0.10.0 - 2014-07-01
**Improved API**
- All formatting methods are now implemented as variadic functions
instead of using `operator<<` for feeding arbitrary arguments into a
temporary formatter object. This works both with C++11 where
variadic templates are used and with older standards where variadic
functions are emulated by providing lightweight wrapper functions
defined with the `FMT_VARIADIC` macro. You can use this macro for
defining your own portable variadic functions:
```c++
void report_error(const char *format, const fmt::ArgList &args) {
fmt::print("Error: {}");
fmt::print(format, args);
}
FMT_VARIADIC(void, report_error, const char *)
report_error("file not found: {}", path);
```
Apart from a more natural syntax, this also improves performance as
there is no need to construct temporary formatter objects and
control arguments\' lifetimes. Because the wrapper functions are
very lightweight, this doesn\'t cause code bloat even in pre-C++11
mode.
- Simplified common case of formatting an `std::string`. Now it
requires a single function call:
```c++
std::string s = format("The answer is {}.", 42);
```
Previously it required 2 function calls:
```c++
std::string s = str(Format("The answer is {}.") << 42);
```
Instead of unsafe `c_str` function, `fmt::Writer` should be used
directly to bypass creation of `std::string`:
```c++
fmt::Writer w;
w.write("The answer is {}.", 42);
w.c_str(); // returns a C string
```
This doesn\'t do dynamic memory allocation for small strings and is
less error prone as the lifetime of the string is the same as for
`std::string::c_str` which is well understood (hopefully).
- Improved consistency in naming functions that are a part of the
public API. Now all public functions are lowercase following the
standard library conventions. Previously it was a combination of
lowercase and CapitalizedWords. Issue
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https://github.com/fmtlib/fmt/issues/50.
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- Old functions are marked as deprecated and will be removed in the
next release.
**Other Changes**
- Experimental support for printf format specifications (work in
progress):
```c++
fmt::printf("The answer is %d.", 42);
std::string s = fmt::sprintf("Look, a %s!", "string");
```
- Support for hexadecimal floating point format specifiers `a` and
`A`:
```c++
print("{:a}", -42.0); // Prints -0x1.5p+5
print("{:A}", -42.0); // Prints -0X1.5P+5
```
- CMake option `FMT_SHARED` that specifies whether to build format as
a shared library (off by default).
# 0.9.0 - 2014-05-13
- More efficient implementation of variadic formatting functions.
- `Writer::Format` now has a variadic overload:
```c++
Writer out;
out.Format("Look, I'm {}!", "variadic");
```
- For efficiency and consistency with other overloads, variadic
overload of the `Format` function now returns `Writer` instead of
`std::string`. Use the `str` function to convert it to
`std::string`:
```c++
std::string s = str(Format("Look, I'm {}!", "variadic"));
```
- Replaced formatter actions with output sinks: `NoAction` -\>
`NullSink`, `Write` -\> `FileSink`, `ColorWriter` -\>
`ANSITerminalSink`. This improves naming consistency and shouldn\'t
affect client code unless these classes are used directly which
should be rarely needed.
- Added `ThrowSystemError` function that formats a message and throws
`SystemError` containing the formatted message and system-specific
error description. For example, the following code
```c++
FILE *f = fopen(filename, "r");
if (!f)
ThrowSystemError(errno, "Failed to open file '{}'") << filename;
```
will throw `SystemError` exception with description \"Failed to open
file \'\<filename\>\': No such file or directory\" if file doesn\'t
exist.
- Support for AppVeyor continuous integration platform.
- `Format` now throws `SystemError` in case of I/O errors.
- Improve test infrastructure. Print functions are now tested by
redirecting the output to a pipe.
# 0.8.0 - 2014-04-14
- Initial release
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