libcxx/include/__ranges/from_range.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___RANGES_FROM_RANGE_H
  11 #define _LIBCPP___RANGES_FROM_RANGE_H
  12
  13 #include <__config>
  14
  15 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  16 #  pragma GCC system_header
  17 #endif
  18
  19 _LIBCPP_BEGIN_NAMESPACE_STD
  20
  21 #if _LIBCPP_STD_VER >= 23
  22
  23 struct from_range_t {
  24   explicit from_range_t() = default;
  25 };
  26
  27 inline constexpr from_range_t from_range{};
  28
  29 #endif // _LIBCPP_STD_VER >= 23
  30
  31 _LIBCPP_END_NAMESPACE_STD
  32
  33 #endif // _LIBCPP___RANGES_FROM_RANGE_H