libcxx/include/__format/format_fwd.h

   1 // -*- C++ -*-
   2 //===----------------------------------------------------------------------===//
   3 //
   4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   5 // See https://llvm.org/LICENSE.txt for license information.
   6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #ifndef _LIBCPP___FORMAT_FORMAT_FWD_H
  11 #define _LIBCPP___FORMAT_FORMAT_FWD_H
  12
  13 #include <__availability>
  14 #include <__config>
  15 #include <__iterator/concepts.h>
  16
  17 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  18 #  pragma GCC system_header
  19 #endif
  20
  21 _LIBCPP_BEGIN_NAMESPACE_STD
  22
  23 #if _LIBCPP_STD_VER >= 20
  24
  25 template <class _Context>
  26 class _LIBCPP_TEMPLATE_VIS basic_format_arg;
  27
  28 template <class _OutIt, class _CharT>
  29   requires output_iterator<_OutIt, const _CharT&>
  30 class _LIBCPP_TEMPLATE_VIS basic_format_context;
  31
  32 template <class _Tp, class _CharT = char>
  33 struct _LIBCPP_TEMPLATE_VIS formatter;
  34
  35 #endif //_LIBCPP_STD_VER >= 20
  36
  37 _LIBCPP_END_NAMESPACE_STD
  38
  39 #endif // _LIBCPP___FORMAT_FORMAT_FWD_H