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Update changelog
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Victor Zverovich
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ChangeLog.rst
115
ChangeLog.rst
@ -2,18 +2,31 @@
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-----------
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* Reduced the library size. For example, on macOS the stripped binary
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statically linked with {fmt} shrank from ~368k to less than 100k:
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http://www.zverovich.net/2020/05/21/reducing-library-size.html
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statically linked with {fmt} `shrank from ~368k to less than 100k
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<http://www.zverovich.net/2020/05/21/reducing-library-size.html>`_.
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* Added sa impler and more efficient `format string compilation API
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<https://fmt.dev/dev/api.html#compile-api>`_:
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.. code:: c++
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#include <fmt/compile.h>
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// Converts 42 into std::string using the most efficient method and no
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// runtime format string processing.
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std::string s = fmt::format(FMT_COMPILE("{}"), 42);
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The old ``fmt::compile`` API is now deprecated.
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* Optimized integer formatting: ``format_to`` with format string compilation
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and a stack-allocated buffer is now faster than both libc++ and libstdc++
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``to_chars``
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(http://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html).
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and a stack-allocated buffer is now `faster than to_chars` on both
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libc++ and libstdc++
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<http://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html>`_.
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* Applied extern templates to improve compile times when using the core API
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and ``fmt/format.h`` (`#1452 <https://github.com/fmtlib/fmt/issues/1452>`_).
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For example, on macOS with clang the compile time dropped from 2.3s to 0.3s
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with ``-O2`` and from 0.6s to 0.3s with the default settings (``-O0``).
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and ``fmt/format.h`` (`#1452`_). For example, on macOS with clang the compile
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time of a test translation unit dropped from 2.3s to 0.3s with ``-O2`` and
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from 0.6s to 0.3s with the default settings (``-O0``).
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Before (``-O2``)::
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@ -71,7 +84,8 @@
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mov DWORD PTR [rsp+16], 42
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mov QWORD PTR [rsp+32], OFFSET FLAT:.LC0
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mov DWORD PTR [rsp+40], 0
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call fmt::v6::vprint(fmt::v6::basic_string_view<char>, fmt::v6::format_args)
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call fmt::v6::vprint(fmt::v6::basic_string_view<char>,
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fmt::v6::format_args)
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xor eax, eax
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add rsp, 56
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ret
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@ -127,6 +141,7 @@
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``dynamic_format_arg_store``
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(`#1655 <https://github.com/fmtlib/fmt/issues/1655>`_,
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`#1663 <https://github.com/fmtlib/fmt/pull/1663>`_,
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`#1674 <https://github.com/fmtlib/fmt/pull/1674>`_,
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`#1677 <https://github.com/fmtlib/fmt/pull/1677>`_).
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Thanks `@vsolontsov-ll (Vladimir Solontsov)
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<https://github.com/vsolontsov-ll>`_.
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@ -153,15 +168,9 @@
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is now ~40% faster (`#1685 <https://github.com/fmtlib/fmt/issues/1685>`_).
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* Added the ``FMT_OS`` CMake option to control inclusion of OS-specific APIs
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in the fmt target. This can be useful for embedded platforms
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(`#1654 <https://github.com/fmtlib/fmt/issues/1654>`_,
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`#1656 <https://github.com/fmtlib/fmt/pull/1656>`_).
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Thanks `@kwesolowski (Krzysztof Wesolowski)
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<https://github.com/kwesolowski>`_.
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* Improved compatibility between ``fmt::printf`` with the standard specs
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(`#1595 <https://github.com/fmtlib/fmt/issues/1595>`_,
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`#1682 <https://github.com/fmtlib/fmt/pull/1682>`_,
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`#1683 <https://github.com/fmtlib/fmt/pull/1683>`_,
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`#1687 <https://github.com/fmtlib/fmt/pull/1687>`_,
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`#1699 <https://github.com/fmtlib/fmt/pull/1699>`_).
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@ -172,46 +181,74 @@
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* Removed the following deprecated APIs:
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* ``fmt`` and ``FMT_STRING_ALIAS`` macros - replaced by ``FMT_STRING``
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* ``FMT_STRING_ALIAS`` and ``fmt`` macros - replaced by ``FMT_STRING``
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* ``fmt::basic_string_view::char_type`` - replaced by
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``fmt::basic_string_view::value_type``
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* ``convert_to_int``
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* ``format_arg_store::types``
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* ``*parse_context`` - replaced by ``*format_parse_context``
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* ``FMT_DEPRECATED_INCLUDE_OS``
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* ``FMT_DEPRECATED_PERCENT``
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* ``*writer``
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* ``FMT_DEPRECATED_PERCENT`` - incompatible with ``std::format``
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* ``*writer`` - replaced by compiled format API
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* Renamed the ``internal`` namespace to ``detail``
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(`#1538 <https://github.com/fmtlib/fmt/issues/1538>`_). The former is still
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provided as an alias if the ``FMT_USE_INTERNAL`` macro is defined.
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* Added the ``FMT_OS`` CMake option to control inclusion of OS-specific APIs
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in the fmt target. This can be useful for embedded platforms
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(`#1654 <https://github.com/fmtlib/fmt/issues/1654>`_,
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`#1656 <https://github.com/fmtlib/fmt/pull/1656>`_).
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Thanks `@kwesolowski (Krzysztof Wesolowski)
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<https://github.com/kwesolowski>`_.
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* Replaced ``FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION`` with the ``FMT_FUZZ``
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macro to prevent interferring with fuzzing of projects using {fmt}
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(`#1650 <https://github.com/fmtlib/fmt/pull/1650>`_).
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Thanks `@asraa (Asra Ali) <https://github.com/asraa>`_.
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* Fixed compatibility with emscripten
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(`#1636 <https://github.com/fmtlib/fmt/issues/1636>`_,
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`#1637 <https://github.com/fmtlib/fmt/pull/1637>`_).
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Thanks `@ArthurSonzogni (Arthur Sonzogni)
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<https://github.com/ArthurSonzogni>`_.
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* Improved documentation
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(`#704 <https://github.com/fmtlib/fmt/issues/704>`_,
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`#1643 <https://github.com/fmtlib/fmt/pull/1643>`_,
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`#1660 <https://github.com/fmtlib/fmt/pull/1660>`_,
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`#1681 <https://github.com/fmtlib/fmt/pull/1681>`_,
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`#1691 <https://github.com/fmtlib/fmt/pull/1691>`_).
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`#1691 <https://github.com/fmtlib/fmt/pull/1691>`_,
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`#1706 <https://github.com/fmtlib/fmt/pull/1706>`_,
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`#1714 <https://github.com/fmtlib/fmt/pull/1714>`_,
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`#1721 <https://github.com/fmtlib/fmt/pull/1721>`_,
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`#1739 <https://github.com/fmtlib/fmt/pull/1739>`_,
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`#1740 <https://github.com/fmtlib/fmt/pull/1740>`_,
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`#1741 <https://github.com/fmtlib/fmt/pull/1741>`_).
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Thanks `@senior7515 (Alexander Gallego) <https://github.com/senior7515>`_,
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`@lsr0 (Lindsay Roberts) <https://github.com/lsr0>`_,
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`@puetzk (Kevin Puetz) <https://github.com/puetzk>`_,
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`@fpelliccioni (Fernando Pelliccioni ) <https://github.com/fpelliccioni>`_,
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Alexey Kuzmenko.
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`@fpelliccioni (Fernando Pelliccioni) <https://github.com/fpelliccioni>`_,
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Alexey Kuzmenko, `@jelly (jelle van der Waa) <https://github.com/jelly>`_,
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`@claremacrae (Clare Macrae) <https://github.com/claremacrae>`_,
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`@jiapengwen (文佳鹏) <https://github.com/jiapengwen>`_,
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`@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_.
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* Implemented various build configuration fixes and improvements
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(`#1657 <https://github.com/fmtlib/fmt/pull/1657>`_,
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`#1702 <https://github.com/fmtlib/fmt/pull/1702>`_).
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Thanks `@jtojnar (Jan Tojnar) <https://github.com/jtojnar>`_,
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`@orivej (Orivej Desh) <https://github.com/orivej>`_.
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(`#1603 <https://github.com/fmtlib/fmt/pull/1603>`_,
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`#1657 <https://github.com/fmtlib/fmt/pull/1657>`_,
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`#1702 <https://github.com/fmtlib/fmt/pull/1702>`_,
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`#1728 <https://github.com/fmtlib/fmt/pull/1728>`_).
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Thanks `@scramsby (Scott Ramsby) <https://github.com/scramsby>`_,
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`@jtojnar (Jan Tojnar) <https://github.com/jtojnar>`_,
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`@orivej (Orivej Desh) <https://github.com/orivej>`_,
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`@flagarde <https://github.com/flagarde>`_.
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* Fixed various warnings and compilation issues
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(`#1616 <https://github.com/fmtlib/fmt/pull/1616>`_,
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`#1620 <https://github.com/fmtlib/fmt/issues/1620>`_,
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`#1622 <https://github.com/fmtlib/fmt/issues/1622>`_,
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`#1625 <https://github.com/fmtlib/fmt/issues/1625>`_,
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`#1627 <https://github.com/fmtlib/fmt/pull/1627>`_,
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`#1628 <https://github.com/fmtlib/fmt/issues/1628>`_,
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`#1629 <https://github.com/fmtlib/fmt/pull/1629>`_,
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@ -221,10 +258,23 @@
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`#1658 <https://github.com/fmtlib/fmt/issues/1658>`_,
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`#1661 <https://github.com/fmtlib/fmt/pull/1661>`_,
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`#1667 <https://github.com/fmtlib/fmt/pull/1667>`_,
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`#1668 <https://github.com/fmtlib/fmt/issues/1668>`_,
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`#1669 <https://github.com/fmtlib/fmt/pull/1669>`_,
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`#1692 <https://github.com/fmtlib/fmt/issues/1692>`_,
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`#1696 <https://github.com/fmtlib/fmt/pull/1696>`_,
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`#1697 <https://github.com/fmtlib/fmt/pull/1697>`_).
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`#1697 <https://github.com/fmtlib/fmt/pull/1697>`_,
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`#1707 <https://github.com/fmtlib/fmt/issues/1707>`_,
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`#1712 <https://github.com/fmtlib/fmt/pull/1712>`_,
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`#1716 <https://github.com/fmtlib/fmt/pull/1716>`_,
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`#1722 <https://github.com/fmtlib/fmt/pull/1722>`_,
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`#1724 <https://github.com/fmtlib/fmt/issues/1724>`_,
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`#1729 <https://github.com/fmtlib/fmt/pull/1729>`_,
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`#1738 <https://github.com/fmtlib/fmt/pull/1738>`_,
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`#1742 <https://github.com/fmtlib/fmt/issues/1742>`_,
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`#1743 <https://github.com/fmtlib/fmt/issues/1743>`_,
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`#1744 <https://github.com/fmtlib/fmt/pull/1744>`_,
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`#1747 <https://github.com/fmtlib/fmt/issues/1747>`_,
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`#1750 <https://github.com/fmtlib/fmt/pull/1750>`_).
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Thanks `@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_,
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`@gabime (Gabi Melman) <https://github.com/gabime>`_,
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`@johnor (Johan) <https://github.com/johnor>`_,
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@ -233,7 +283,12 @@
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`@peterbell10 <https://github.com/peterbell10>`_,
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`@daixtrose (Markus Werle) <https://github.com/daixtrose>`_,
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`@petrutlucian94 (Lucian Petrut) <https://github.com/petrutlucian94>`_,
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`@Neargye (Daniil Goncharov) <https://github.com/Neargye>`_.
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`@Neargye (Daniil Goncharov) <https://github.com/Neargye>`_,
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`@ambitslix (Attila M. Szilagyi) <https://github.com/ambitslix>`_,
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`@gabime (Gabi Melman) <https://github.com/gabime>`_,
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`@erthink (Leonid Yuriev) <https://github.com/erthink>`_,
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`@tohammer (Tobias Hammer) <https://github.com/tohammer>`_,
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`@0x8000-0000 (Florin Iucha) <https://github.com/0x8000-0000>`_.
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6.2.1 - 2020-05-09
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------------------
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@ -834,8 +889,8 @@
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#include <fmt/compile.h>
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auto f = fmt::compile<int>("{}");
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std::string s = fmt::format(f, 42); // can be called multiple times to format
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// different values
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std::string s = fmt::format(f, 42); // can be called multiple times to
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// format different values
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// s == "42"
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It moves the cost of parsing a format string outside of the format function
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