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Update changelog
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Victor Zverovich
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ChangeLog.md
96
ChangeLog.md
@ -25,6 +25,7 @@
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(https://github.com/fmtlib/fmt/issues/3990,
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https://github.com/fmtlib/fmt/pull/3991,
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https://github.com/fmtlib/fmt/issues/3993,
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https://github.com/fmtlib/fmt/pull/3994,
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https://github.com/fmtlib/fmt/pull/3997,
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https://github.com/fmtlib/fmt/pull/3998,
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https://github.com/fmtlib/fmt/pull/4004,
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@ -35,23 +36,37 @@
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https://github.com/fmtlib/fmt/pull/3928). Thanks @matt77hias.
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- Exported `fmt::range_format`, `fmt::range_format_kind` and
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`fmt::compiled_string` from the fmt module
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`fmt::compiled_string` from the `fmt` module
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(https://github.com/fmtlib/fmt/pull/3970,
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https://github.com/fmtlib/fmt/pull/3999).
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Thanks @matt77hias and @yujincheng08.
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- Replaced double buffering with writing directly to a C stream buffer in
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`std::print`. This may give significant performance improvements ranging
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from tens of percent to [2x](https://stackoverflow.com/a/78457454/471164)
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and elimates dynamic memory allocation of the buffer. It is currently
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enabled for common types with more to come in the upcoming releases.
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- Improved integration with stdio in `fmt::print`, enabling direct writes
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into a C stream buffer in common cases. This may give significant
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performance improvements ranging from tens of percent to [2x](
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https://stackoverflow.com/a/78457454/471164) and eliminates dynamic memory
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allocations on the buffer level. It is currently enabled for built-in and
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string types with wider availability coming up in future releases.
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- Improved safety of `format_to` when writting to an array
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For example, it gives ~24% improvement on a [simple benchmark](
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https://isocpp.org/files/papers/P3107R5.html#perf) compiled with Apple clang
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version 15.0.0 (clang-1500.1.0.2.5) and run on macOS 14.2.1:
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```
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-------------------------------------------------------
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Benchmark Time CPU Iterations
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-------------------------------------------------------
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printf 81.8 ns 81.5 ns 8496899
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fmt::print (10.*) 63.8 ns 61.9 ns 11524151
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fmt::print (11.0) 51.3 ns 51.0 ns 13846580
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```
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- Improved safety of `fmt::format_to` when writting to an array
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(https://github.com/fmtlib/fmt/pull/3805).
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For example ([godbolt](https://www.godbolt.org/z/cYrn8dWY8)):
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```c++
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char volkswagen[4];
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auto volkswagen = char[4];
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auto result = fmt::format_to(volkswagen, "elephant");
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```
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@ -59,6 +74,30 @@
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and you can get the end iterator and whether truncation occurred from the
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`result` object. Thanks @ThePhD.
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- Enabled Unicode support by default in MSVC, bringing it on par with other
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compilers and making it unnecessary for users to enable it explicitly.
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Most of {fmt} is encoding-agnostic but this prevents mojibake in places
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where encoding matters such as path formatting and terminal output.
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You can control the Unicode support via the CMake `FMT_UNICODE` option.
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Note that some {fmt} packages such as the one in vcpkg have already been
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compiled with Unicode enabled.
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- Added a formatter for `std::expected`
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(https://github.com/fmtlib/fmt/pull/3834. Thanks @dominicpoeschko.
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- Added a formatter for `std::complex`
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(https://github.com/fmtlib/fmt/issues/1467,
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https://github.com/fmtlib/fmt/issues/3886,
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https://github.com/fmtlib/fmt/pull/3892,
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https://github.com/fmtlib/fmt/pull/3900). Thanks @phprus.
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- Added a formatter for `std::type_info`
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(https://github.com/fmtlib/fmt/pull/3978). Thanks @matt77hias.
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- Specialized `formatter` for `std::basic_string` types with custom traits
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and allocators (https://github.com/fmtlib/fmt/issues/3938,
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https://github.com/fmtlib/fmt/pull/3943). Thanks @dieram3.
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- Added formatters for `std::chrono::day`, `std::chrono::month`,
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`std::chrono::year` and `std::chrono::year_month_day`
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(https://github.com/fmtlib/fmt/issues/3758,
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@ -95,22 +134,6 @@
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- Improved handling of `time_point::min()`
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(https://github.com/fmtlib/fmt/issues/3282).
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- Added a formatter for `std::expected`
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(https://github.com/fmtlib/fmt/pull/3834. Thanks @dominicpoeschko.
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- Added a formatter for `std::complex`
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(https://github.com/fmtlib/fmt/issues/1467,
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https://github.com/fmtlib/fmt/issues/3886,
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https://github.com/fmtlib/fmt/pull/3892,
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https://github.com/fmtlib/fmt/pull/3900). Thanks @phprus.
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- Added a formatter for `std::type_info`
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(https://github.com/fmtlib/fmt/pull/3978). Thanks @matt77hias.
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- Specialized `formatter` for `std::basic_string` types with custom traits
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and allocators (https://github.com/fmtlib/fmt/issues/3938,
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https://github.com/fmtlib/fmt/pull/3943). Thanks @dieram3.
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- Added support for character range formatting
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(https://github.com/fmtlib/fmt/issues/3857,
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https://github.com/fmtlib/fmt/pull/3863). Thanks @js324.
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@ -138,7 +161,7 @@
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(https://github.com/fmtlib/fmt/issues/3839,
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https://github.com/fmtlib/fmt/pull/3964). Thanks @Arghnews.
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- Added a `formattable` concept (https://github.com/fmtlib/fmt/pull/3974).
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- Added an `fmt::formattable` concept (https://github.com/fmtlib/fmt/pull/3974).
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Thanks @matt77hias.
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- Added support for `__float128` (https://github.com/fmtlib/fmt/issues/3494).
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@ -163,11 +186,11 @@
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(https://github.com/fmtlib/fmt/issues/4000,
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https://github.com/fmtlib/fmt/pull/4001). Thanks @yujincheng08.
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- Made `iterator_buffer`'s move constructor `noexcept`
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- Made `fmt::iterator_buffer`'s move constructor `noexcept`
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(https://github.com/fmtlib/fmt/pull/3808). Thanks @waywardmonkeys.
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- Started enforcing that `formatter::format` is const for compatibility with
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`std::format` (https://github.com/fmtlib/fmt/issues/3447).
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- Started enforcing that `formatter::format` is const for compatibility
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with `std::format` (https://github.com/fmtlib/fmt/issues/3447).
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- Added `fmt::basic_format_arg::visit` and deprecated `fmt::visit_format_arg`.
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@ -175,18 +198,19 @@
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consistency with `std::string_view` in C++23
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(https://github.com/fmtlib/fmt/pull/3846). Thanks @dalle.
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- Fixed `group_digits` for negative integers
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- Fixed `fmt::group_digits` for negative integers
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(https://github.com/fmtlib/fmt/issues/3891,
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https://github.com/fmtlib/fmt/pull/3901). Thanks @phprus.
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- Fixed handling of negative ids in `basic_format_args::get`
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- Fixed handling of negative ids in `fmt::basic_format_args::get`
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(https://github.com/fmtlib/fmt/pull/3945). Thanks @marlenecota.
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- Improved named argument validation
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(https://github.com/fmtlib/fmt/issues/3817).
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- Disabled copy contruction/assignment for `format_arg_store` and fixed moved
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construction (https://github.com/fmtlib/fmt/pull/3833). Thanks @ivafanas.
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- Disabled copy contruction/assignment for `fmt::format_arg_store` and
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fixed moved construction (https://github.com/fmtlib/fmt/pull/3833).
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Thanks @ivafanas.
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- Worked around a locale issue in RHEL/devtoolset
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(https://github.com/fmtlib/fmt/issues/3858,
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@ -195,6 +219,8 @@
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- Added RTTI detection for MSVC (https://github.com/fmtlib/fmt/pull/3821,
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https://github.com/fmtlib/fmt/pull/3963). Thanks @edo9300.
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- Migrated the documentation from Sphinx to MkDocs.
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- Improved documentation and README
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(https://github.com/fmtlib/fmt/issues/3775,
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https://github.com/fmtlib/fmt/pull/3784,
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@ -275,9 +301,11 @@
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https://github.com/fmtlib/fmt/pull/3967,
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https://github.com/fmtlib/fmt/pull/3968,
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https://github.com/fmtlib/fmt/pull/3972,
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https://github.com/fmtlib/fmt/pull/3983).
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https://github.com/fmtlib/fmt/pull/3983,
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https://github.com/fmtlib/fmt/pull/3995).
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Thanks @hmbj, @phprus, @res2k, @Baardi, @matt77hias, @waywardmonkeys, @hmbj,
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@yakra, @prlw1, @Arghnews, @mtillmann0, @ShifftC, @eepp and @jimmy-park.
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@yakra, @prlw1, @Arghnews, @mtillmann0, @ShifftC, @eepp, @jimmy-park and
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@ChristianGebhardt.
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# 10.2.1 - 2024-01-04
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