v1/__fwd/span.h

0001 // -*- C++ -*-
0002 //===---------------------------------------------------------------------===//
0003 //
0004 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0005 // See https://llvm.org/LICENSE.txt for license information.
0006 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0007 //
0008 //===---------------------------------------------------------------------===//
0009
0010 #ifndef _LIBCPP___FWD_SPAN_H
0011 #define _LIBCPP___FWD_SPAN_H
0012
0013 #include <__config>
0014 #include <__cstddef/size_t.h>
0015 #include <limits>
0016
0017 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
0018 #  pragma GCC system_header
0019 #endif
0020
0021 _LIBCPP_PUSH_MACROS
0022 #include <__undef_macros>
0023
0024 _LIBCPP_BEGIN_NAMESPACE_STD
0025
0026 #if _LIBCPP_STD_VER >= 20
0027
0028 inline constexpr size_t dynamic_extent = numeric_limits<size_t>::max();
0029 template <typename _Tp, size_t _Extent = dynamic_extent>
0030 class span;
0031
0032 #endif
0033
0034 _LIBCPP_END_NAMESPACE_STD
0035
0036 _LIBCPP_POP_MACROS
0037
0038 #endif // _LIBCPP___FWD_SPAN_H