libcxx/include/__fwd/format.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___FWD_FORMAT_H
  11 #define _LIBCPP___FWD_FORMAT_H
  12
  13 #include <__config>
  14 #include <__iterator/concepts.h>
  15
  16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  17 #  pragma GCC system_header
  18 #endif
  19
  20 _LIBCPP_BEGIN_NAMESPACE_STD
  21
  22 #if _LIBCPP_STD_VER >= 20
  23
  24 template <class _Context>
  25 class _LIBCPP_TEMPLATE_VIS basic_format_arg;
  26
  27 template <class _OutIt, class _CharT>
  28   requires output_iterator<_OutIt, const _CharT&>
  29 class _LIBCPP_TEMPLATE_VIS basic_format_context;
  30
  31 template <class _Tp, class _CharT = char>
  32 struct _LIBCPP_TEMPLATE_VIS formatter;
  33
  34 #endif // _LIBCPP_STD_VER >= 20
  35
  36 _LIBCPP_END_NAMESPACE_STD
  37
  38 #endif // _LIBCPP___FWD_FORMAT_H