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Libraries
fmt
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7dbc8ac7
Commit
7dbc8ac7
authored
Jul 05, 2020
by
Victor Zverovich
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ChangeLog.rst
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7dbc8ac7
7.0.0 - TBD
7.0.0 - TBD
-----------
-----------
* Reduced the library size. For example, on macOS
the stripped
binary
* Reduced the library size. For example, on macOS
a stripped test
binary
statically linked with {fmt} `shrank from ~368k to less than 100k
statically linked with {fmt} `shrank from ~368k to less than 100k
<http://www.zverovich.net/2020/05/21/reducing-library-size.html>`_.
<http://www.zverovich.net/2020/05/21/reducing-library-size.html>`_.
* Added
s
a impler and more efficient `format string compilation API
* Added a impler and more efficient `format string compilation API
<https://fmt.dev/dev/api.html#compile-api>`_:
<https://fmt.dev/dev/api.html#compile-api>`_:
.. code:: c++
.. code:: c++
...
@@ -19,14 +19,23 @@
...
@@ -19,14 +19,23 @@
The old ``fmt::compile`` API is now deprecated.
The old ``fmt::compile`` API is now deprecated.
* Optimized integer formatting: ``format_to`` with format string compilation
* Optimized integer formatting: ``format_to`` with format string compilation
and a stack-allocated buffer is now `faster than to_chars
`
on both
and a stack-allocated buffer is now `faster than to_chars on both
libc++ and libstdc++
libc++ and libstdc++
<http://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html>`_.
<http://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html>`_.
* Optimized handling of small format strings. For example,
.. code:: c++
fmt::format("Result: {}: ({},{},{},{})", str1, str2, str3, str4, str5)
is now ~40% faster (`#1685 <https://github.com/fmtlib/fmt/issues/1685>`_).
* Applied extern templates to improve compile times when using the core API
* Applied extern templates to improve compile times when using the core API
and ``fmt/format.h`` (`#1452`_). For example, on macOS with clang the compile
and ``fmt/format.h`` (`#1452 <https://github.com/fmtlib/fmt/issues/1452>`_).
time of a test translation unit dropped from 2.3s to 0.3s with ``-O2`` and
For example, on macOS with clang the compile time of a test translation unit
from 0.6s to 0.3s with the default settings (``-O0``).
dropped from 2.3s to 0.3s with ``-O2`` and from 0.6s to 0.3s with the default
settings (``-O0``).
Before (``-O2``)::
Before (``-O2``)::
...
@@ -54,7 +63,7 @@
...
@@ -54,7 +63,7 @@
Thanks `@alex3d <https://github.com/alex3d>`_ for the suggestion.
Thanks `@alex3d <https://github.com/alex3d>`_ for the suggestion.
* Named arguments are now stored on stack (no dynamic memory allocations) and
* Named arguments are now stored on stack (no dynamic memory allocations) and
the
generated binary
code is more compact and efficient. For example
the
compiled
code is more compact and efficient. For example
.. code:: c++
.. code:: c++
...
@@ -150,35 +159,15 @@
...
@@ -150,35 +159,15 @@
compatibility with ``std::format``
compatibility with ``std::format``
(`#1652 <https://github.com/fmtlib/fmt/issues/1652>`_).
(`#1652 <https://github.com/fmtlib/fmt/issues/1652>`_).
* Implemented the ``'L'`` format specifier for locale-specific formatting of
* Replaced the ``'n'`` format specifier with ``'L'`` for compatibility with
floating-point numbers for compatibility with ``std::format``
``std::format`` (`#1624 <https://github.com/fmtlib/fmt/issues/1624>`_).
(`#1624 <https://github.com/fmtlib/fmt/issues/1624>`_).
The ``'n'`` specifier can be enabled via the ``FMT_DEPRECATED_N_SPECIFIER``
The ``'n'`` specifier is now disabled by default but can be enabled via the
macro.
``FMT_DEPRECATED_N_SPECIFIER`` macro.
* The ``'='`` format specifier is now disabled by default for compatibility with
* The ``'='`` format specifier is now disabled by default for compatibility with
``std::format``. It can be enabled via the ``FMT_DEPRECATED_NUMERIC_ALIGN``
``std::format``. It can be enabled via the ``FMT_DEPRECATED_NUMERIC_ALIGN``
macro.
macro.
* Optimized handling of small format strings. For example,
.. code:: c++
fmt::format("Result: {}: ({},{},{},{})", str1, str2, str3, str4, str5)
is now ~40% faster (`#1685 <https://github.com/fmtlib/fmt/issues/1685>`_).
* 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>`_).
Thanks `@rimathia <https://github.com/rimathia>`_.
* Fixed handling of ``operator<<` overloads that use ``copyfmt``
(`#1666 <https://github.com/fmtlib/fmt/issues/1666>`_).
* Removed the following deprecated APIs:
* Removed the following deprecated APIs:
* ``FMT_STRING_ALIAS`` and ``fmt`` macros - replaced by ``FMT_STRING``
* ``FMT_STRING_ALIAS`` and ``fmt`` macros - replaced by ``FMT_STRING``
...
@@ -195,6 +184,17 @@
...
@@ -195,6 +184,17 @@
(`#1538 <https://github.com/fmtlib/fmt/issues/1538>`_). The former is still
(`#1538 <https://github.com/fmtlib/fmt/issues/1538>`_). The former is still
provided as an alias if the ``FMT_USE_INTERNAL`` macro is defined.
provided as an alias if the ``FMT_USE_INTERNAL`` macro is defined.
* 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>`_).
Thanks `@rimathia <https://github.com/rimathia>`_.
* Fixed handling of ``operator<<` overloads that use ``copyfmt``
(`#1666 <https://github.com/fmtlib/fmt/issues/1666>`_).
* Added the ``FMT_OS`` CMake option to control inclusion of OS-specific APIs
* Added the ``FMT_OS`` CMake option to control inclusion of OS-specific APIs
in the fmt target. This can be useful for embedded platforms
in the fmt target. This can be useful for embedded platforms
(`#1654 <https://github.com/fmtlib/fmt/issues/1654>`_,
(`#1654 <https://github.com/fmtlib/fmt/issues/1654>`_,
...
@@ -224,7 +224,8 @@
...
@@ -224,7 +224,8 @@
`#1721 <https://github.com/fmtlib/fmt/pull/1721>`_,
`#1721 <https://github.com/fmtlib/fmt/pull/1721>`_,
`#1739 <https://github.com/fmtlib/fmt/pull/1739>`_,
`#1739 <https://github.com/fmtlib/fmt/pull/1739>`_,
`#1740 <https://github.com/fmtlib/fmt/pull/1740>`_,
`#1740 <https://github.com/fmtlib/fmt/pull/1740>`_,
`#1741 <https://github.com/fmtlib/fmt/pull/1741>`_).
`#1741 <https://github.com/fmtlib/fmt/pull/1741>`_,
`#1751 <https://github.com/fmtlib/fmt/pull/1751>`_).
Thanks `@senior7515 (Alexander Gallego) <https://github.com/senior7515>`_,
Thanks `@senior7515 (Alexander Gallego) <https://github.com/senior7515>`_,
`@lsr0 (Lindsay Roberts) <https://github.com/lsr0>`_,
`@lsr0 (Lindsay Roberts) <https://github.com/lsr0>`_,
`@puetzk (Kevin Puetz) <https://github.com/puetzk>`_,
`@puetzk (Kevin Puetz) <https://github.com/puetzk>`_,
...
@@ -232,7 +233,8 @@
...
@@ -232,7 +233,8 @@
Alexey Kuzmenko, `@jelly (jelle van der Waa) <https://github.com/jelly>`_,
Alexey Kuzmenko, `@jelly (jelle van der Waa) <https://github.com/jelly>`_,
`@claremacrae (Clare Macrae) <https://github.com/claremacrae>`_,
`@claremacrae (Clare Macrae) <https://github.com/claremacrae>`_,
`@jiapengwen (文佳鹏) <https://github.com/jiapengwen>`_,
`@jiapengwen (文佳鹏) <https://github.com/jiapengwen>`_,
`@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_.
`@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_,
`@alexey-milovidov <https://github.com/alexey-milovidov>`_.
* Implemented various build configuration fixes and improvements
* Implemented various build configuration fixes and improvements
(`#1603 <https://github.com/fmtlib/fmt/pull/1603>`_,
(`#1603 <https://github.com/fmtlib/fmt/pull/1603>`_,
...
...
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