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Add a section on std::format compatibility

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This commit is contained in:
Victor Zverovich 2020-07-05 07:07:29 -07:00
parent 4faec5a5ee
commit 0f7a6bfa12
1 changed files with 16 additions and 0 deletions
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doc/api.rst
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@ -437,3 +437,19 @@ argument type doesn't match its format specification.
.. doxygenfunction:: fprintf(std::basic_ostream<Char>&, const S&, const Args&...)
.. doxygenfunction:: sprintf(const S&, const Args&...)
Compatibility with C++20 ``std::format``
========================================
{fmt} implements nearly all of the `C++20 formatting library
<https://en.cppreference.com/w/cpp/utility/format>`_ with the following
differences:
* Types are defined in the ``fmt`` namespace instead of ``std`` to avoid
collisions with standard library implementations.
* The ``'L'`` format specifier cannot be combined with presentation specifiers
yet.
* Width calculation doesn't use grapheme clusterization - the latter has
been implemented in a separate branch but hasn't been integrated yet.
* Chrono formatting doesn't support C++20 date types since they are not provided
by standard library implementations.