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fmt/ChangeLog.rst
Victor Zverovich b2a8141373 Update changelog
2016-05-04 08:49:29 -07:00

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3.0.0 - TBD
* The project has been renamed from C++ Format (cppformat) to fmt for
consistency with the used namespace and macro prefix
(`#307 <https://github.com/fmtlib/fmt/issues/307>`_).
Library headers are now located in the ``fmt`` directory:
.. code:: c++
#include "fmt/format.h"
Including the headers from the ``cppformat`` directory is deprecated
but works via a proxy header which will be removed in the next major version.
* Fixed detection of user-defined literal support on Intel C++ compiler
(`#311 <https://github.com/fmtlib/fmt/issues/311>`_,
`#312 <https://github.com/fmtlib/fmt/pull/312>`_).
Thanks to `@dean0x7d (Dean Moldovan) <https://github.com/dean0x7d>`_ and
`@speth (Ray Speth) <https://github.com/speth>`_.
* Compile test fixes (`#313 <https://github.com/fmtlib/fmt/pull/313>`_).
Thanks to `@dean0x7d (Dean Moldovan) <https://github.com/dean0x7d>`_.
* Documentation fixes (`#309 <https://github.com/fmtlib/fmt/pull/309>`_).
Thanks to `@jwilk (Jakub Wilk) <https://github.com/jwilk>`_.
* Fixed compiler warnings (`#259 <https://github.com/fmtlib/fmt/pull/259>`_,
`#277 <https://github.com/fmtlib/fmt/pull/277>`_,
`#286 <https://github.com/fmtlib/fmt/pull/286>`_).
Thanks to `@mwinterb <https://github.com/mwinterb>`_,
`@pweiskircher (Patrik Weiskircher) <https://github.com/pweiskircher>`_,
`@Naios <https://github.com/Naios>`_.
* Improved compatibility with Windows Store apps
(`#280 <https://github.com/fmtlib/fmt/issues/280>`_,
`#285 <https://github.com/fmtlib/fmt/pull/285>`_)
Thanks to `@mwinterb <https://github.com/mwinterb>`_.
* Added tests of compatibility with older C++ standards
(`#273 <https://github.com/fmtlib/fmt/pull/273>`_).
Thanks to `@niosHD <https://github.com/niosHD>`_.
* Fixed Android build (`#271 <https://github.com/fmtlib/fmt/pull/271>`_).
Thanks to `@newnon <https://github.com/newnon>`_.
* Changed ``ArgMap`` to be backed by a vector instead of a map.
(`#262 <https://github.com/fmtlib/fmt/pull/262>`_).
Thanks to `@mwinterb <https://github.com/mwinterb>`_.
2.1.1 - 2016-04-11
------------------
* The install location for generated CMake files is now configurable via
the ``FMT_CMAKE_DIR`` CMake variable
(`#299 <https://github.com/fmtlib/fmt/pull/299>`_).
Thanks to `@niosHD <https://github.com/niosHD>`_.
* Documentation fixes (`#252 <https://github.com/fmtlib/fmt/issues/252>`_).
2.1.0 - 2016-03-21
------------------
* Project layout and build system improvements
(`#267 <https://github.com/fmtlib/fmt/pull/267>`_):
* 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.
Thanks to `@niosHD <https://github.com/niosHD>`_.
2.0.1 - 2016-03-13
------------------
* Improved CMake find and package support
(`#264 <https://github.com/fmtlib/fmt/issues/264>`_).
Thanks to `@niosHD <https://github.com/niosHD>`_.
* Fix compile error with Android NDK and mingw32
(`#241 <https://github.com/fmtlib/fmt/issues/241>`_).
Thanks to `@Gachapen (Magnus Bjerke Vik) <https://github.com/Gachapen>`_.
* Documentation fixes
(`#248 <https://github.com/fmtlib/fmt/issues/248>`_,
`#260 <https://github.com/fmtlib/fmt/issues/260>`_).
2.0.0 - 2015-12-01
------------------
General
~~~~~~~
* [Breaking] Named arguments
(`#169 <https://github.com/fmtlib/fmt/pull/169>`_,
`#173 <https://github.com/fmtlib/fmt/pull/173>`_,
`#174 <https://github.com/fmtlib/fmt/pull/174>`_):
.. code:: c++
fmt::print("The answer is {answer}.", fmt::arg("answer", 42));
Thanks to `@jamboree <https://github.com/jamboree>`_.
* [Experimental] User-defined literals for format and named arguments
(`#204 <https://github.com/fmtlib/fmt/pull/204>`_,
`#206 <https://github.com/fmtlib/fmt/pull/206>`_,
`#207 <https://github.com/fmtlib/fmt/pull/207>`_):
.. code:: c++
using namespace fmt::literals;
fmt::print("The answer is {answer}.", "answer"_a=42);
Thanks to `@dean0x7d (Dean Moldovan) <https://github.com/dean0x7d>`_.
* [Breaking] Formatting of more than 16 arguments is now supported when using
variadic templates
(`#141 <https://github.com/fmtlib/fmt/issues/141>`_).
Thanks to `@Shauren <https://github.com/Shauren>`_.
* Runtime width specification
(`#168 <https://github.com/fmtlib/fmt/pull/168>`_):
.. code:: c++
fmt::format("{0:{1}}", 42, 5); // gives " 42"
Thanks to `@jamboree <https://github.com/jamboree>`_.
* [Breaking] Enums are now formatted with an overloaded ``std::ostream`` insertion
operator (``operator<<``) if available
(`#232 <https://github.com/fmtlib/fmt/issues/232>`_).
* [Breaking] Changed default ``bool`` format to textual, "true" or "false"
(`#170 <https://github.com/fmtlib/fmt/issues/170>`_):
.. code:: c++
fmt::print("{}", true); // prints "true"
To print ``bool`` as a number use numeric format specifier such as ``d``:
.. code:: 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"
(`#223 <https://github.com/fmtlib/fmt/pull/223>`_):
.. code:: c++
fmt::printf("%s", true); // prints "true"
Thanks to `@LarsGullik <https://github.com/LarsGullik>`_.
* [Breaking] ``signed char`` and ``unsigned char`` are now formatted as integers by default
(`#217 <https://github.com/fmtlib/fmt/pull/217>`_).
* [Breaking] Pointers to C strings can now be formatted with the ``p`` specifier
(`#223 <https://github.com/fmtlib/fmt/pull/223>`_):
.. code:: c++
fmt::print("{:p}", "test"); // prints pointer value
Thanks to `@LarsGullik <https://github.com/LarsGullik>`_.
* [Breaking] ``fmt::printf`` and ``fmt::sprintf`` now print null pointers as ``(nil)``
and null strings as ``(null)`` for consistency with glibc
(`#226 <https://github.com/fmtlib/fmt/pull/226>`_).
Thanks to `@LarsGullik <https://github.com/LarsGullik>`_.
* [Breaking] ``fmt::(s)printf`` now supports formatting of objects of user-defined types
that provide an overloaded ``std::ostream`` insertion operator (``operator<<``)
(`#201 <https://github.com/fmtlib/fmt/issues/201>`_):
.. code:: 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
(`#140 <https://github.com/fmtlib/fmt/issues/140>`_).
Thanks to `@polyvertex (Jean-Charles Lefebvre) <https://github.com/polyvertex>`_.
* [Breaking] Improved compatibility between ``BasicStringRef`` and
`std::experimental::basic_string_view
<http://en.cppreference.com/w/cpp/experimental/basic_string_view>`_
(`#100 <https://github.com/fmtlib/fmt/issues/100>`_,
`#159 <https://github.com/fmtlib/fmt/issues/159>`_,
`#183 <https://github.com/fmtlib/fmt/issues/183>`_):
- 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
(`#185 <https://github.com/fmtlib/fmt/issues/185>`_).
* New CMake options ``FMT_DOC``, ``FMT_INSTALL`` and ``FMT_TEST`` to control
generation of ``doc``, ``install`` and ``test`` targets respectively, on by default
(`#197 <https://github.com/fmtlib/fmt/issues/197>`_,
`#198 <https://github.com/fmtlib/fmt/issues/198>`_,
`#200 <https://github.com/fmtlib/fmt/issues/200>`_).
Thanks to `@maddinat0r (Alex Martin) <https://github.com/maddinat0r>`_.
* ``noexcept`` is now used when compiling with MSVC2015
(`#215 <https://github.com/fmtlib/fmt/pull/215>`_).
Thanks to `@dmkrepo (Dmitriy) <https://github.com/dmkrepo>`_.
* Added an option to disable use of ``windows.h`` when ``FMT_USE_WINDOWS_H``
is defined as 0 before including ``format.h``
(`#171 <https://github.com/fmtlib/fmt/issues/171>`_).
Thanks to `@alfps (Alf P. Steinbach) <https://github.com/alfps>`_.
* [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 configuration
(`#152 <https://github.com/fmtlib/fmt/issues/152>`_,
`#153 <https://github.com/fmtlib/fmt/pull/153>`_,
`#154 <https://github.com/fmtlib/fmt/pull/154>`_).
Thanks to `@DevO2012 <https://github.com/DevO2012>`_.
* Improved support for custom character types
(`#171 <https://github.com/fmtlib/fmt/issues/171>`_).
Thanks to `@alfps (Alf P. Steinbach) <https://github.com/alfps>`_.
* Added an option to disable use of IOStreams when ``FMT_USE_IOSTREAMS``
is defined as 0 before including ``format.h``
(`#205 <https://github.com/fmtlib/fmt/issues/205>`_,
`#208 <https://github.com/fmtlib/fmt/pull/208>`_).
Thanks to `@JodiTheTigger <https://github.com/JodiTheTigger>`_.
* Improved detection of ``isnan``, ``isinf`` and ``signbit``.
Optimization
~~~~~~~~~~~~
* Made formatting of user-defined types more efficient with a custom stream buffer
(`#92 <https://github.com/fmtlib/fmt/issues/92>`_,
`#230 <https://github.com/fmtlib/fmt/pull/230>`_).
Thanks to `@NotImplemented <https://github.com/NotImplemented>`_.
* 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
(`#186 <https://github.com/fmtlib/fmt/issues/186>`_).
* [Breaking] Reduced `compiled code size
<https://github.com/fmtlib/fmt#compile-time-and-code-bloat>`_
(`#143 <https://github.com/fmtlib/fmt/issues/143>`_,
`#149 <https://github.com/fmtlib/fmt/pull/149>`_).
Distribution
~~~~~~~~~~~~
* [Breaking] Headers are now installed in
``${CMAKE_INSTALL_PREFIX}/include/cppformat``
(`#178 <https://github.com/fmtlib/fmt/issues/178>`_).
Thanks to `@jackyf (Eugene V. Lyubimkin) <https://github.com/jackyf>`_.
* [Breaking] Changed the library name from ``format`` to ``cppformat``
for consistency with the project name and to avoid potential conflicts
(`#178 <https://github.com/fmtlib/fmt/issues/178>`_).
Thanks to `@jackyf (Eugene V. Lyubimkin) <https://github.com/jackyf>`_.
* 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 later
(`#155 <https://github.com/fmtlib/fmt/issues/155>`_)::
$ sudo apt-get install libcppformat1-dev
Thanks to `@jackyf (Eugene V. Lyubimkin) <https://github.com/jackyf>`_.
* `Packages for Fedora and RHEL <https://admin.fedoraproject.org/pkgdb/package/cppformat/>`_
are now available. Thanks to Dave Johansen.
* C++ Format can now be installed via `Homebrew <http://brew.sh/>`_ on OS X
(`#157 <https://github.com/fmtlib/fmt/issues/157>`_)::
$ brew install cppformat
Thanks to `@ortho <https://github.com/ortho>`_, Anatoliy Bulukin.
Documentation
~~~~~~~~~~~~~
* Migrated from ReadTheDocs to GitHub Pages for better responsiveness
and reliability
(`#128 <https://github.com/fmtlib/fmt/issues/128>`_).
New documentation address is http://cppformat.github.io/.
* Added `Building the documentation
<http://fmtlib.net/dev/usage.html#building-the-documentation>`_
section to the documentation.
* Documentation build script is now compatible with Python 3 and newer pip versions.
(`#189 <https://github.com/fmtlib/fmt/pull/189>`_,
`#209 <https://github.com/fmtlib/fmt/issues/209>`_).
Thanks to `@JodiTheTigger <https://github.com/JodiTheTigger>`_ and
`@xentec <https://github.com/xentec>`_.
* Documentation fixes and improvements
(`#36 <https://github.com/fmtlib/fmt/issues/36>`_,
`#75 <https://github.com/fmtlib/fmt/issues/75>`_,
`#125 <https://github.com/fmtlib/fmt/issues/125>`_,
`#160 <https://github.com/fmtlib/fmt/pull/160>`_,
`#161 <https://github.com/fmtlib/fmt/pull/161>`_,
`#162 <https://github.com/fmtlib/fmt/issues/162>`_,
`#165 <https://github.com/fmtlib/fmt/issues/165>`_,
`#210 <https://github.com/fmtlib/fmt/issues/210>`_).
Thanks to `@syohex (Syohei YOSHIDA) <https://github.com/syohex>`_ and
bug reporters.
* Fixed out-of-tree documentation build
(`#177 <https://github.com/fmtlib/fmt/issues/177>`_).
Thanks to `@jackyf (Eugene V. Lyubimkin) <https://github.com/jackyf>`_.
Fixes
~~~~~
* Fixed ``initializer_list`` detection
(`#136 <https://github.com/fmtlib/fmt/issues/136>`_).
Thanks to `@Gachapen (Magnus Bjerke Vik) <https://github.com/Gachapen>`_.
* [Breaking] Fixed formatting of enums with numeric format specifiers in
``fmt::(s)printf``
(`#131 <https://github.com/fmtlib/fmt/issues/131>`_,
`#139 <https://github.com/fmtlib/fmt/issues/139>`_):
.. code:: c++
enum { ANSWER = 42 };
fmt::printf("%d", ANSWER);
Thanks to `@Naios <https://github.com/Naios>`_.
* Improved compatibility with old versions of MinGW
(`#129 <https://github.com/fmtlib/fmt/issues/129>`_,
`#130 <https://github.com/fmtlib/fmt/pull/130>`_,
`#132 <https://github.com/fmtlib/fmt/issues/132>`_).
Thanks to `@cstamford (Christopher Stamford) <https://github.com/cstamford>`_.
* Fixed a compile error on MSVC with disabled exceptions
(`#144 <https://github.com/fmtlib/fmt/issues/144>`_).
* Added a workaround for broken implementation of variadic templates in MSVC2012
(`#148 <https://github.com/fmtlib/fmt/issues/148>`_).
* Placed the anonymous namespace within ``fmt`` namespace for the header-only
configuration
(`#171 <https://github.com/fmtlib/fmt/issues/171>`_).
Thanks to `@alfps (Alf P. Steinbach) <https://github.com/alfps>`_.
* Fixed issues reported by Coverity Scan
(`#187 <https://github.com/fmtlib/fmt/issues/187>`_,
`#192 <https://github.com/fmtlib/fmt/issues/192>`_).
* Implemented a workaround for a name lookup bug in MSVC2010
(`#188 <https://github.com/fmtlib/fmt/issues/188>`_).
* Fixed compiler warnings
(`#95 <https://github.com/fmtlib/fmt/issues/95>`_,
`#96 <https://github.com/fmtlib/fmt/issues/96>`_,
`#114 <https://github.com/fmtlib/fmt/pull/114>`_,
`#135 <https://github.com/fmtlib/fmt/issues/135>`_,
`#142 <https://github.com/fmtlib/fmt/issues/142>`_,
`#145 <https://github.com/fmtlib/fmt/issues/145>`_,
`#146 <https://github.com/fmtlib/fmt/issues/146>`_,
`#158 <https://github.com/fmtlib/fmt/issues/158>`_,
`#163 <https://github.com/fmtlib/fmt/issues/163>`_,
`#175 <https://github.com/fmtlib/fmt/issues/175>`_,
`#190 <https://github.com/fmtlib/fmt/issues/190>`_,
`#191 <https://github.com/fmtlib/fmt/pull/191>`_,
`#194 <https://github.com/fmtlib/fmt/issues/194>`_,
`#196 <https://github.com/fmtlib/fmt/pull/196>`_,
`#216 <https://github.com/fmtlib/fmt/issues/216>`_,
`#218 <https://github.com/fmtlib/fmt/pull/218>`_,
`#220 <https://github.com/fmtlib/fmt/pull/220>`_,
`#229 <https://github.com/fmtlib/fmt/pull/229>`_,
`#233 <https://github.com/fmtlib/fmt/issues/233>`_,
`#234 <https://github.com/fmtlib/fmt/issues/234>`_,
`#236 <https://github.com/fmtlib/fmt/pull/236>`_).
Thanks to `@seanmiddleditch (Sean Middleditch) <https://github.com/seanmiddleditch>`_,
`@dixlorenz (Dix Lorenz) <https://github.com/dixlorenz>`_,
`@CarterLi (李通洲) <https://github.com/CarterLi>`_,
`@Naios <https://github.com/Naios>`_,
`@fmatthew5876 (Matthew Fioravante) <https://github.com/fmatthew5876>`_,
`@LevskiWeng (Levski Weng) <https://github.com/LevskiWeng>`_,
`@rpopescu <https://github.com/rpopescu>`_,
`@gabime (Gabi Melman) <https://github.com/gabime>`_,
`@cubicool (Jeremy Moles) <https://github.com/cubicool>`_,
`@jkflying (Julian Kent) <https://github.com/jkflying>`_,
`@LogicalKnight (Sean L) <https://github.com/LogicalKnight>`_,
`@inguin (Ingo van Lil) <https://github.com/inguin>`_ and
`@Jopie64 (Johan) <https://github.com/Jopie64>`_.
* Fixed portability issues (mostly causing test failures) on ARM, ppc64, ppc64le,
s390x and SunOS 5.11 i386 (
`#138 <https://github.com/fmtlib/fmt/issues/138>`_,
`#179 <https://github.com/fmtlib/fmt/issues/179>`_,
`#180 <https://github.com/fmtlib/fmt/issues/180>`_,
`#202 <https://github.com/fmtlib/fmt/issues/202>`_,
`#225 <https://github.com/fmtlib/fmt/issues/225>`_,
`Red Hat Bugzilla Bug 1260297 <https://bugzilla.redhat.com/show_bug.cgi?id=1260297>`_).
Thanks to `@Naios <https://github.com/Naios>`_,
`@jackyf (Eugene V. Lyubimkin) <https://github.com/jackyf>`_ and Dave Johansen.
* Fixed a name conflict with macro ``free`` defined in
``crtdbg.h`` when ``_CRTDBG_MAP_ALLOC`` is set
(`#211 <https://github.com/fmtlib/fmt/issues/211>`_).
* Fixed shared library build on OS X
(`#212 <https://github.com/fmtlib/fmt/pull/212>`_).
Thanks to `@dean0x7d (Dean Moldovan) <https://github.com/dean0x7d>`_.
* Fixed an overload conflict on MSVC when ``/Zc:wchar_t-`` option is specified
(`#214 <https://github.com/fmtlib/fmt/pull/214>`_).
Thanks to `@slavanap (Vyacheslav Napadovsky) <https://github.com/slavanap>`_.
* Improved compatibility with MSVC 2008
(`#236 <https://github.com/fmtlib/fmt/pull/236>`_).
Thanks to `@Jopie64 (Johan) <https://github.com/Jopie64>`_.
* Improved compatibility with bcc32
(`#227 <https://github.com/fmtlib/fmt/issues/227>`_).
* Fixed ``static_assert`` detection on Clang
(`#228 <https://github.com/fmtlib/fmt/pull/228>`_).
Thanks to `@dean0x7d (Dean Moldovan) <https://github.com/dean0x7d>`_.
1.1.0 - 2015-03-06
------------------
* Added ``BasicArrayWriter``, a class template that provides operations for
formatting and writing data into a fixed-size array
(`#105 <https://github.com/fmtlib/fmt/issues/105>`_ and
`#122 <https://github.com/fmtlib/fmt/issues/122>`_):
.. code:: 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.
* C++ Format now uses MSVC intrinsics for better formatting performance
(`#115 <https://github.com/fmtlib/fmt/pull/115>`_,
`#116 <https://github.com/fmtlib/fmt/pull/116>`_,
`#118 <https://github.com/fmtlib/fmt/pull/118>`_ and
`#121 <https://github.com/fmtlib/fmt/pull/121>`_).
Previously these optimizations where only used on GCC and Clang.
Thanks to `@CarterLi <https://github.com/CarterLi>`_ and
`@objectx <https://github.com/objectx>`_.
* CMake install target (`#119 <https://github.com/fmtlib/fmt/pull/119>`_).
Thanks to `@TrentHouliston <https://github.com/TrentHouliston>`_.
You can now install C++ Format with ``make install`` command.
* Improved `Biicode <http://www.biicode.com/>`_ support
(`#98 <https://github.com/fmtlib/fmt/pull/98>`_ and
`#104 <https://github.com/fmtlib/fmt/pull/104>`_). Thanks to
`@MariadeAnton <https://github.com/MariadeAnton>`_ and
`@franramirez688 <https://github.com/franramirez688>`_.
* Improved support for building with `Android NDK
<https://developer.android.com/tools/sdk/ndk/index.html>`_
(`#107 <https://github.com/fmtlib/fmt/pull/107>`_).
Thanks to `@newnon <https://github.com/newnon>`_.
The `android-ndk-example <https://github.com/fmtlib/android-ndk-example>`_
repository provides and example of using C++ Format with Android NDK:
.. image:: https://raw.githubusercontent.com/fmtlib/android-ndk-example/
master/screenshot.png
* Improved documentation of ``SystemError`` and ``WindowsError``
(`#54 <https://github.com/fmtlib/fmt/issues/54>`_).
* Various code improvements
(`#110 <https://github.com/fmtlib/fmt/pull/110>`_,
`#111 <https://github.com/fmtlib/fmt/pull/111>`_
`#112 <https://github.com/fmtlib/fmt/pull/112>`_).
Thanks to `@CarterLi <https://github.com/CarterLi>`_.
* Improved compile-time errors when formatting wide into narrow strings
(`#117 <https://github.com/fmtlib/fmt/issues/117>`_).
* Fixed ``BasicWriter::write`` without formatting arguments when C++11 support
is disabled (`#109 <https://github.com/fmtlib/fmt/issues/109>`_).
* Fixed header-only build on OS X with GCC 4.9
(`#124 <https://github.com/fmtlib/fmt/issues/124>`_).
* Fixed packaging issues (`#94 <https://github.com/fmtlib/fmt/issues/94>`_).
* Added `changelog <https://github.com/fmtlib/fmt/blob/master/ChangeLog.rst>`_
(`#103 <https://github.com/fmtlib/fmt/issues/103>`_).
1.0.0 - 2015-02-05
------------------
* Add support for a header-only configuration when ``FMT_HEADER_ONLY`` is
defined before including ``format.h``:
.. code:: c++
#define FMT_HEADER_ONLY
#include "format.h"
* Compute string length in the constructor of ``BasicStringRef``
instead of the ``size`` method
(`#79 <https://github.com/fmtlib/fmt/issues/79>`_).
This eliminates size computation for string literals on reasonable optimizing
compilers.
* Fix formatting of types with overloaded ``operator <<`` for ``std::wostream``
(`#86 <https://github.com/fmtlib/fmt/issues/86>`_):
.. code:: c++
fmt::format(L"The date is {0}", Date(2012, 12, 9));
* Fix linkage of tests on Arch Linux
(`#89 <https://github.com/fmtlib/fmt/issues/89>`_).
* Allow precision specifier for non-float arguments
(`#90 <https://github.com/fmtlib/fmt/issues/90>`_):
.. code:: c++
fmt::print("{:.3}\n", "Carpet"); // prints "Car"
* Fix build on Android NDK
(`#93 <https://github.com/fmtlib/fmt/issues/93>`_)
* Improvements to documentation build procedure.
* 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>`_.
* 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:
.. code:: c++
fmt::Writer w;
New code:
.. code:: c++
fmt::MemoryWriter w;
If you pass ``fmt::Writer`` by reference, you can continue to do so:
.. code:: c++
void f(fmt::Writer &w);
This doesn't affect the formatting API.
* Support for custom memory allocators
(`#69 <https://github.com/fmtlib/fmt/issues/69>`_)
* Formatting functions now accept `signed char` and `unsigned char` strings as
arguments (`#73 <https://github.com/fmtlib/fmt/issues/73>`_):
.. code:: 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/>`_:
.. |old| image:: https://cloud.githubusercontent.com/assets/576385/4792130/
cd256436-5de3-11e4-9a62-c077d0c2b003.png
.. |new| image:: https://cloud.githubusercontent.com/assets/576385/4792131/
cd29896c-5de3-11e4-8f59-cac952942bf0.png
+-------+-------+
| Old | New |
+-------+-------+
| |old| | |new| |
+-------+-------+
0.11.0 - 2014-08-21
-------------------
* Safe printf implementation with a POSIX extension for positional arguments:
.. code:: 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 `#55 <https://github.com/fmtlib/fmt/issues/55>`_):
.. code:: 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:
.. code:: 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:
.. code:: c++
std::string s = format("The answer is {}.", 42);
Previously it required 2 function calls:
.. code:: 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``:
.. code:: 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 `#50 <https://github.com/fmtlib/fmt/issues/50>`_.
* 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):
.. code:: 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``:
.. code:: 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:
.. code:: 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``:
.. code:: 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
.. 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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