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Commit c87dd746 authored by Victor Zverovich's avatar Victor Zverovich
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Update changelog

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ChangeLog.rst
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......@@ -2,18 +2,31 @@
-----------
* Reduced the library size. For example, on macOS the stripped binary
statically linked with {fmt} shrank from ~368k to less than 100k:
http://www.zverovich.net/2020/05/21/reducing-library-size.html
statically linked with {fmt} `shrank from ~368k to less than 100k
<http://www.zverovich.net/2020/05/21/reducing-library-size.html>`_.
* Added sa impler and more efficient `format string compilation API
<https://fmt.dev/dev/api.html#compile-api>`_:
.. code:: 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 both libc++ and libstdc++
``to_chars``
(http://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html).
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>`_.
* Applied extern templates to improve compile times when using the core API
and ``fmt/format.h`` (`#1452 <https://github.com/fmtlib/fmt/issues/1452>`_).
For example, on macOS with clang the compile time dropped from 2.3s to 0.3s
with ``-O2`` and from 0.6s to 0.3s with the default settings (``-O0``).
and ``fmt/format.h`` (`#1452`_). For example, 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``)::
......@@ -71,7 +84,8 @@
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)
call fmt::v6::vprint(fmt::v6::basic_string_view<char>,
fmt::v6::format_args)
xor eax, eax
add rsp, 56
ret
......@@ -127,6 +141,7 @@
``dynamic_format_arg_store``
(`#1655 <https://github.com/fmtlib/fmt/issues/1655>`_,
`#1663 <https://github.com/fmtlib/fmt/pull/1663>`_,
`#1674 <https://github.com/fmtlib/fmt/pull/1674>`_,
`#1677 <https://github.com/fmtlib/fmt/pull/1677>`_).
Thanks `@vsolontsov-ll (Vladimir Solontsov)
<https://github.com/vsolontsov-ll>`_.
......@@ -153,15 +168,9 @@
is now ~40% faster (`#1685 <https://github.com/fmtlib/fmt/issues/1685>`_).
* Added the ``FMT_OS`` CMake option to control inclusion of OS-specific APIs
in the fmt target. This can be useful for embedded platforms
(`#1654 <https://github.com/fmtlib/fmt/issues/1654>`_,
`#1656 <https://github.com/fmtlib/fmt/pull/1656>`_).
Thanks `@kwesolowski (Krzysztof Wesolowski)
<https://github.com/kwesolowski>`_.
* Improved compatibility between ``fmt::printf`` with the standard specs
(`#1595 <https://github.com/fmtlib/fmt/issues/1595>`_,
`#1682 <https://github.com/fmtlib/fmt/pull/1682>`_,
`#1683 <https://github.com/fmtlib/fmt/pull/1683>`_,
`#1687 <https://github.com/fmtlib/fmt/pull/1687>`_,
`#1699 <https://github.com/fmtlib/fmt/pull/1699>`_).
......@@ -172,46 +181,74 @@
* Removed the following deprecated APIs:
* ``fmt`` and ``FMT_STRING_ALIAS`` macros - replaced by ``FMT_STRING``
* ``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``
* ``*writer``
* ``FMT_DEPRECATED_PERCENT`` - incompatible with ``std::format``
* ``*writer`` - replaced by compiled format API
* Renamed the ``internal`` namespace to ``detail``
(`#1538 <https://github.com/fmtlib/fmt/issues/1538>`_). The former is still
provided as an alias if the ``FMT_USE_INTERNAL`` macro is defined.
* Added the ``FMT_OS`` CMake option to control inclusion of OS-specific APIs
in the fmt target. This can be useful for embedded platforms
(`#1654 <https://github.com/fmtlib/fmt/issues/1654>`_,
`#1656 <https://github.com/fmtlib/fmt/pull/1656>`_).
Thanks `@kwesolowski (Krzysztof Wesolowski)
<https://github.com/kwesolowski>`_.
* Replaced ``FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION`` with the ``FMT_FUZZ``
macro to prevent interferring with fuzzing of projects using {fmt}
(`#1650 <https://github.com/fmtlib/fmt/pull/1650>`_).
Thanks `@asraa (Asra Ali) <https://github.com/asraa>`_.
* Fixed compatibility with emscripten
(`#1636 <https://github.com/fmtlib/fmt/issues/1636>`_,
`#1637 <https://github.com/fmtlib/fmt/pull/1637>`_).
Thanks `@ArthurSonzogni (Arthur Sonzogni)
<https://github.com/ArthurSonzogni>`_.
* Improved documentation
(`#704 <https://github.com/fmtlib/fmt/issues/704>`_,
`#1643 <https://github.com/fmtlib/fmt/pull/1643>`_,
`#1660 <https://github.com/fmtlib/fmt/pull/1660>`_,
`#1681 <https://github.com/fmtlib/fmt/pull/1681>`_,
`#1691 <https://github.com/fmtlib/fmt/pull/1691>`_).
`#1691 <https://github.com/fmtlib/fmt/pull/1691>`_,
`#1706 <https://github.com/fmtlib/fmt/pull/1706>`_,
`#1714 <https://github.com/fmtlib/fmt/pull/1714>`_,
`#1721 <https://github.com/fmtlib/fmt/pull/1721>`_,
`#1739 <https://github.com/fmtlib/fmt/pull/1739>`_,
`#1740 <https://github.com/fmtlib/fmt/pull/1740>`_,
`#1741 <https://github.com/fmtlib/fmt/pull/1741>`_).
Thanks `@senior7515 (Alexander Gallego) <https://github.com/senior7515>`_,
`@lsr0 (Lindsay Roberts) <https://github.com/lsr0>`_,
`@puetzk (Kevin Puetz) <https://github.com/puetzk>`_,
`@fpelliccioni (Fernando Pelliccioni ) <https://github.com/fpelliccioni>`_,
Alexey Kuzmenko.
`@fpelliccioni (Fernando Pelliccioni) <https://github.com/fpelliccioni>`_,
Alexey Kuzmenko, `@jelly (jelle van der Waa) <https://github.com/jelly>`_,
`@claremacrae (Clare Macrae) <https://github.com/claremacrae>`_,
`@jiapengwen (文佳鹏) <https://github.com/jiapengwen>`_,
`@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_.
* Implemented various build configuration fixes and improvements
(`#1657 <https://github.com/fmtlib/fmt/pull/1657>`_,
`#1702 <https://github.com/fmtlib/fmt/pull/1702>`_).
Thanks `@jtojnar (Jan Tojnar) <https://github.com/jtojnar>`_,
`@orivej (Orivej Desh) <https://github.com/orivej>`_.
(`#1603 <https://github.com/fmtlib/fmt/pull/1603>`_,
`#1657 <https://github.com/fmtlib/fmt/pull/1657>`_,
`#1702 <https://github.com/fmtlib/fmt/pull/1702>`_,
`#1728 <https://github.com/fmtlib/fmt/pull/1728>`_).
Thanks `@scramsby (Scott Ramsby) <https://github.com/scramsby>`_,
`@jtojnar (Jan Tojnar) <https://github.com/jtojnar>`_,
`@orivej (Orivej Desh) <https://github.com/orivej>`_,
`@flagarde <https://github.com/flagarde>`_.
* Fixed various warnings and compilation issues
(`#1616 <https://github.com/fmtlib/fmt/pull/1616>`_,
`#1620 <https://github.com/fmtlib/fmt/issues/1620>`_,
`#1622 <https://github.com/fmtlib/fmt/issues/1622>`_,
`#1625 <https://github.com/fmtlib/fmt/issues/1625>`_,
`#1627 <https://github.com/fmtlib/fmt/pull/1627>`_,
`#1628 <https://github.com/fmtlib/fmt/issues/1628>`_,
`#1629 <https://github.com/fmtlib/fmt/pull/1629>`_,
......@@ -221,10 +258,23 @@
`#1658 <https://github.com/fmtlib/fmt/issues/1658>`_,
`#1661 <https://github.com/fmtlib/fmt/pull/1661>`_,
`#1667 <https://github.com/fmtlib/fmt/pull/1667>`_,
`#1668 <https://github.com/fmtlib/fmt/issues/1668>`_,
`#1669 <https://github.com/fmtlib/fmt/pull/1669>`_,
`#1692 <https://github.com/fmtlib/fmt/issues/1692>`_,
`#1696 <https://github.com/fmtlib/fmt/pull/1696>`_,
`#1697 <https://github.com/fmtlib/fmt/pull/1697>`_).
`#1697 <https://github.com/fmtlib/fmt/pull/1697>`_,
`#1707 <https://github.com/fmtlib/fmt/issues/1707>`_,
`#1712 <https://github.com/fmtlib/fmt/pull/1712>`_,
`#1716 <https://github.com/fmtlib/fmt/pull/1716>`_,
`#1722 <https://github.com/fmtlib/fmt/pull/1722>`_,
`#1724 <https://github.com/fmtlib/fmt/issues/1724>`_,
`#1729 <https://github.com/fmtlib/fmt/pull/1729>`_,
`#1738 <https://github.com/fmtlib/fmt/pull/1738>`_,
`#1742 <https://github.com/fmtlib/fmt/issues/1742>`_,
`#1743 <https://github.com/fmtlib/fmt/issues/1743>`_,
`#1744 <https://github.com/fmtlib/fmt/pull/1744>`_,
`#1747 <https://github.com/fmtlib/fmt/issues/1747>`_,
`#1750 <https://github.com/fmtlib/fmt/pull/1750>`_).
Thanks `@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_,
`@gabime (Gabi Melman) <https://github.com/gabime>`_,
`@johnor (Johan) <https://github.com/johnor>`_,
......@@ -233,7 +283,12 @@
`@peterbell10 <https://github.com/peterbell10>`_,
`@daixtrose (Markus Werle) <https://github.com/daixtrose>`_,
`@petrutlucian94 (Lucian Petrut) <https://github.com/petrutlucian94>`_,
`@Neargye (Daniil Goncharov) <https://github.com/Neargye>`_.
`@Neargye (Daniil Goncharov) <https://github.com/Neargye>`_,
`@ambitslix (Attila M. Szilagyi) <https://github.com/ambitslix>`_,
`@gabime (Gabi Melman) <https://github.com/gabime>`_,
`@erthink (Leonid Yuriev) <https://github.com/erthink>`_,
`@tohammer (Tobias Hammer) <https://github.com/tohammer>`_,
`@0x8000-0000 (Florin Iucha) <https://github.com/0x8000-0000>`_.
6.2.1 - 2020-05-09
------------------
......@@ -834,8 +889,8 @@
#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
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
......
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