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
23struct from_range_t {
24  explicit from_range_t() = default;
25};
26
27inline 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