C++ Format/CHANGELOG and C++ Format Releases (Page 3)

All Versions

Latest Version

9.1.0

Avg Release Cycle

66 days

Latest Release

606 days ago

Changelog History

Page 4

v2.1.1 Changes
April 11, 2016
- 🔧 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>_).
v2.1.0 Changes
March 21, 2016
- 👷 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>_.
v2.0.1 Changes
March 13, 2016
- 👌 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>).

v2.0.0 Changes

December 01, 2015

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>`_).

* 0️⃣ [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>`_.

* 0️⃣ [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 <https://fmt.dev/2.0.0/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>`_,
  `#281 <https://github.com/fmtlib/fmt/issues/281>`_,
  `#289 <https://github.com/fmtlib/fmt/issues/289>`_).
  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>`_.

v1.1.0 Changes
March 06, 2015
- ➕ 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>_).
v1.0.0 Changes
February 05, 2015
- 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.
v0.12.0 Changes
October 25, 2014
- [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| | +-------+-------+
v0.11.0 Changes
August 21, 2014
- 🖨 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.
v0.10.0 Changes
July 01, 2014
👌 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).
v0.9.0 Changes
May 13, 2014
- 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 '': 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.

C++ Format changelog

A modern formatting library

Changelog History

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v2.1.1 Changes

v2.1.0 Changes

v2.0.1 Changes

v2.0.0 Changes

v1.1.0 Changes

v1.0.0 Changes

v0.12.0 Changes

v0.11.0 Changes

v0.10.0 Changes

v0.9.0 Changes

C++ Format changelog

A modern formatting library

Changelog History Page 4

Changelog History

Page 4