1*5f757f3fSDimitry Andric// -*- C++ -*- 2*5f757f3fSDimitry Andric//===----------------------------------------------------------------------===// 3*5f757f3fSDimitry Andric// 4*5f757f3fSDimitry Andric// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5*5f757f3fSDimitry Andric// See https://llvm.org/LICENSE.txt for license information. 6*5f757f3fSDimitry Andric// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7*5f757f3fSDimitry Andric// 8*5f757f3fSDimitry Andric//===----------------------------------------------------------------------===// 9*5f757f3fSDimitry Andric 10*5f757f3fSDimitry Andricexport namespace std { 11*5f757f3fSDimitry Andric#if _LIBCPP_STD_VER >= 23 12*5f757f3fSDimitry Andric // [mdspan.extents], class template extents 13*5f757f3fSDimitry Andric using std::extents; 14*5f757f3fSDimitry Andric 15*5f757f3fSDimitry Andric // [mdspan.extents.dextents], alias template dextents 16*5f757f3fSDimitry Andric using std::dextents; 17*5f757f3fSDimitry Andric 18*5f757f3fSDimitry Andric // [mdspan.layout], layout mapping 19*5f757f3fSDimitry Andric using std::layout_left; 20*5f757f3fSDimitry Andric using std::layout_right; 21*5f757f3fSDimitry Andric using std::layout_stride; 22*5f757f3fSDimitry Andric 23*5f757f3fSDimitry Andric // [mdspan.accessor.default], class template default_accessor 24*5f757f3fSDimitry Andric using std::default_accessor; 25*5f757f3fSDimitry Andric 26*5f757f3fSDimitry Andric // [mdspan.mdspan], class template mdspan 27*5f757f3fSDimitry Andric using std::mdspan; 28*5f757f3fSDimitry Andric#endif // _LIBCPP_STD_VER >= 23 29*5f757f3fSDimitry Andric} // namespace std 30