336 lines
11 KiB
ReStructuredText
336 lines
11 KiB
ReStructuredText
1.1.0 - 2015-03-06
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------------------
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* Added ``BasicArrayWriter``, a class template that provides operations for
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formatting and writing data into a fixed-size array
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(`#105 <https://github.com/cppformat/cppformat/issues/105>`_ and
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`#122 <https://github.com/cppformat/cppformat/issues/122>`_):
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.. code:: c++
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char buffer[100];
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fmt::ArrayWriter w(buffer);
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w.write("The answer is {}", 42);
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* Added `0 A.D. <http://play0ad.com/>`_ and `PenUltima Online (POL)
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<http://www.polserver.com/>`_ to the list of notable projects using C++ Format.
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* C++ Format now uses MSVC intrinsics for better formatting performance
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(`#115 <https://github.com/cppformat/cppformat/pull/115>`_,
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`#116 <https://github.com/cppformat/cppformat/pull/116>`_,
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`#118 <https://github.com/cppformat/cppformat/pull/118>`_ and
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`#121 <https://github.com/cppformat/cppformat/pull/121>`_).
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Previously these optimizations where only used on GCC and Clang.
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Thanks to `@CarterLi <https://github.com/CarterLi>`_ and
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`@objectx <https://github.com/objectx>`_.
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* CMake install target (`#119 <https://github.com/cppformat/cppformat/pull/119>`_).
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Thanks to `@TrentHouliston <https://github.com/TrentHouliston>`_.
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You can now install C++ Format with ``make install`` command.
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* Improved `Biicode <http://www.biicode.com/>`_ support
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(`#98 <https://github.com/cppformat/cppformat/pull/98>`_ and
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`#104 <https://github.com/cppformat/cppformat/pull/104>`_). Thanks to
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`@MariadeAnton <https://github.com/MariadeAnton>`_ and
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`@franramirez688 <https://github.com/franramirez688>`_.
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* Improved support for bulding with `Android NDK
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<https://developer.android.com/tools/sdk/ndk/index.html>`_
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(`#107 <https://github.com/cppformat/cppformat/pull/107>`_).
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Thanks to `@newnon <https://github.com/newnon>`_.
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The `android-ndk-example <https://github.com/cppformat/android-ndk-example>`_
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repository provides and example of using C++ Format with Android NDK:
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.. image:: https://raw.githubusercontent.com/cppformat/android-ndk-example/
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master/screenshot.png
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* Improved documentation of ``SystemError`` and ``WindowsError``
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(`#54 <https://github.com/cppformat/cppformat/issues/54>`_).
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* Various code improvements
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(`#110 <https://github.com/cppformat/cppformat/pull/110>`_,
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`#111 <https://github.com/cppformat/cppformat/pull/111>`_
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`#112 <https://github.com/cppformat/cppformat/pull/112>`_).
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Thanks to `@CarterLi <https://github.com/CarterLi>`_.
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* Improved compile-time errors when formatting wide into narrow strings
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(`#117 <https://github.com/cppformat/cppformat/issues/117>`_).
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* Fixed ``BasicWriter::write`` without formatting arguments when C++11 support
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is disabled (`#109 <https://github.com/cppformat/cppformat/issues/109>`_).
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* Fixed header-only build on OS X with GCC 4.9
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(`#124 <https://github.com/cppformat/cppformat/issues/124>`_).
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* Fixed packaging issues (`#94 <https://github.com/cppformat/cppformat/issues/94>`_).
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* Fixed warnings in GCC, MSVC and Xcode/Clang
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(`#95 <https://github.com/cppformat/cppformat/issues/95>`_,
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`#96 <https://github.com/cppformat/cppformat/issues/96>`_ and
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`#114 <https://github.com/cppformat/cppformat/pull/114>`_).
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* Added `changelog <https://github.com/cppformat/cppformat/edit/master/ChangeLog.rst>`_
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(`#103 <https://github.com/cppformat/cppformat/issues/103>`_).
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1.0.0 - 2015-02-05
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------------------
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* Add support for a header-only configuration when ``FMT_HEADER_ONLY`` is
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defined before including ``format.h``:
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.. code:: c++
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#define FMT_HEADER_ONLY
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#include "format.h"
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* Compute string length in the constructor of ``BasicStringRef``
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instead of the ``size`` method
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(`#79 <https://github.com/cppformat/cppformat/issues/79>`_).
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This eliminates size computation for string literals on reasonable optimizing
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compilers.
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* Fix formatting of types with overloaded ``operator <<`` for ``std::wostream``
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(`#86 <https://github.com/cppformat/cppformat/issues/86>`_):
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.. code:: c++
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fmt::format(L"The date is {0}", Date(2012, 12, 9));
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* Fix linkage of tests on Arch Linux
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(`#89 <https://github.com/cppformat/cppformat/issues/89>`_).
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* Allow precision specifier for non-float arguments
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(`#90 <https://github.com/cppformat/cppformat/issues/90>`_):
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.. code:: c++
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fmt::print("{:.3}\n", "Carpet"); // prints "Car"
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* Fix build on Android NDK
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(`#93 <https://github.com/cppformat/cppformat/issues/93>`_)
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* Improvements to documentation build procedure.
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* Remove ``FMT_SHARED`` CMake variable in favor of standard `BUILD_SHARED_LIBS
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<http://www.cmake.org/cmake/help/v3.0/variable/BUILD_SHARED_LIBS.html>`_.
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* Fix error handling in ``fmt::fprintf``.
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* Fix a number of warnings.
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0.12.0 - 2014-10-25
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-------------------
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* [Breaking] Improved separation between formatting and buffer management.
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``Writer`` is now a base class that cannot be instantiated directly.
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The new ``MemoryWriter`` class implements the default buffer management
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with small allocations done on stack. So ``fmt::Writer`` should be replaced
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with ``fmt::MemoryWriter`` in variable declarations.
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Old code:
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.. code:: c++
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fmt::Writer w;
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New code:
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.. code:: c++
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fmt::MemoryWriter w;
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If you pass ``fmt::Writer`` by reference, you can continue to do so:
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.. code:: c++
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void f(fmt::Writer &w);
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This doesn't affect the formatting API.
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* Support for custom memory allocators
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(`#69 <https://github.com/cppformat/cppformat/issues/69>`_)
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* Formatting functions now accept `signed char` and `unsigned char` strings as
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arguments (`#73 <https://github.com/cppformat/cppformat/issues/73>`_):
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.. code:: c++
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auto s = format("GLSL version: {}", glGetString(GL_VERSION));
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* Reduced code bloat. According to the new `benchmark results
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<https://github.com/cppformat/cppformat#compile-time-and-code-bloat>`_,
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cppformat is close to ``printf`` and by the order of magnitude better than
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Boost Format in terms of compiled code size.
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* Improved appearance of the documentation on mobile by using the `Sphinx
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Bootstrap theme <http://ryan-roemer.github.io/sphinx-bootstrap-theme/>`_:
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.. |old| image:: https://cloud.githubusercontent.com/assets/576385/4792130/
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cd256436-5de3-11e4-9a62-c077d0c2b003.png
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.. |new| image:: https://cloud.githubusercontent.com/assets/576385/4792131/
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cd29896c-5de3-11e4-8f59-cac952942bf0.png
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+-------+-------+
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| Old | New |
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+-------+-------+
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| |old| | |new| |
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+-------+-------+
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0.11.0 - 2014-08-21
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-------------------
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* Safe printf implementation with a POSIX extension for positional arguments:
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.. code:: c++
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fmt::printf("Elapsed time: %.2f seconds", 1.23);
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fmt::printf("%1$s, %3$d %2$s", weekday, month, day);
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* Arguments of ``char`` type can now be formatted as integers
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(Issue `#55 <https://github.com/cppformat/cppformat/issues/55>`_):
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.. code:: c++
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fmt::format("0x{0:02X}", 'a');
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* Deprecated parts of the API removed.
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* The library is now built and tested on MinGW with Appveyor in addition to
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existing test platforms Linux/GCC, OS X/Clang, Windows/MSVC.
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0.10.0 - 2014-07-01
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-------------------
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**Improved API**
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* All formatting methods are now implemented as variadic functions instead
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of using ``operator<<`` for feeding arbitrary arguments into a temporary
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formatter object. This works both with C++11 where variadic templates are
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used and with older standards where variadic functions are emulated by
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providing lightweight wrapper functions defined with the ``FMT_VARIADIC``
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macro. You can use this macro for defining your own portable variadic
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functions:
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.. code:: c++
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void report_error(const char *format, const fmt::ArgList &args) {
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fmt::print("Error: {}");
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fmt::print(format, args);
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}
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FMT_VARIADIC(void, report_error, const char *)
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report_error("file not found: {}", path);
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Apart from a more natural syntax, this also improves performance as there
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is no need to construct temporary formatter objects and control arguments'
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lifetimes. Because the wrapper functions are very ligthweight, this doesn't
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cause code bloat even in pre-C++11 mode.
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* Simplified common case of formatting an ``std::string``. Now it requires a
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single function call:
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.. code:: c++
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std::string s = format("The answer is {}.", 42);
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Previously it required 2 function calls:
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.. code:: c++
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std::string s = str(Format("The answer is {}.") << 42);
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Instead of unsafe ``c_str`` function, ``fmt::Writer`` should be used directly
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to bypass creation of ``std::string``:
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.. code:: c++
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fmt::Writer w;
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w.write("The answer is {}.", 42);
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w.c_str(); // returns a C string
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This doesn't do dynamic memory allocation for small strings and is less error
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prone as the lifetime of the string is the same as for ``std::string::c_str``
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which is well understood (hopefully).
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* Improved consistency in naming functions that are a part of the public API.
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Now all public functions are lowercase following the standard library
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conventions. Previously it was a combination of lowercase and
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CapitalizedWords.
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Issue `#50 <https://github.com/cppformat/cppformat/issues/50>`_.
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* Old functions are marked as deprecated and will be removed in the next
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release.
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**Other Changes**
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* Experimental support for printf format specifications (work in progress):
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.. code:: c++
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fmt::printf("The answer is %d.", 42);
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std::string s = fmt::sprintf("Look, a %s!", "string");
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* Support for hexadecimal floating point format specifiers ``a`` and ``A``:
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.. code:: c++
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print("{:a}", -42.0); // Prints -0x1.5p+5
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print("{:A}", -42.0); // Prints -0X1.5P+5
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* CMake option ``FMT_SHARED`` that specifies whether to build format as a
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shared library (off by default).
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0.9.0 - 2014-05-13
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------------------
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* More efficient implementation of variadic formatting functions.
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* ``Writer::Format`` now has a variadic overload:
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.. code:: c++
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Writer out;
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out.Format("Look, I'm {}!", "variadic");
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* For efficiency and consistency with other overloads, variadic overload of
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the ``Format`` function now returns ``Writer`` instead of ``std::string``.
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Use the ``str`` function to convert it to ``std::string``:
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.. code:: c++
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std::string s = str(Format("Look, I'm {}!", "variadic"));
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* Replaced formatter actions with output sinks: ``NoAction`` -> ``NullSink``,
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``Write`` -> ``FileSink``, ``ColorWriter`` -> ``ANSITerminalSink``.
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This improves naming consistency and shouldn't affect client code unless
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these classes are used directly which should be rarely needed.
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* Added ``ThrowSystemError`` function that formats a message and throws
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``SystemError`` containing the formatted message and system-specific error
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description. For example, the following code
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.. code:: c++
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FILE *f = fopen(filename, "r");
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if (!f)
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ThrowSystemError(errno, "Failed to open file '{}'") << filename;
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will throw ``SystemError`` exception with description
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"Failed to open file '<filename>': No such file or directory" if file
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doesn't exist.
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* Support for AppVeyor continuous integration platform.
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* ``Format`` now throws ``SystemError`` in case of I/O errors.
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* Improve test infrastructure. Print functions are now tested by redirecting
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the output to a pipe.
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0.8.0 - 2014-04-14
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------------------
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* Initial release
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