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
10export namespace std {
11#if _LIBCPP_STD_VER >= 23
12  // [mdspan.extents], class template extents
13  using std::extents;
14
15  // [mdspan.extents.dextents], alias template dextents
16  using std::dextents;
17
18  // [mdspan.layout], layout mapping
19  using std::layout_left;
20  using std::layout_right;
21  using std::layout_stride;
22
23  // [mdspan.accessor.default], class template default_accessor
24  using std::default_accessor;
25
26  // [mdspan.mdspan], class template mdspan
27  using std::mdspan;
28#endif // _LIBCPP_STD_VER >= 23
29} // namespace std
30