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
40