106c3fb27SDimitry Andric // -*- C++ -*- 206c3fb27SDimitry Andric //===----------------------------------------------------------------------===// 306c3fb27SDimitry Andric // 406c3fb27SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 506c3fb27SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 606c3fb27SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 706c3fb27SDimitry Andric // 806c3fb27SDimitry Andric // Kokkos v. 4.0 906c3fb27SDimitry Andric // Copyright (2022) National Technology & Engineering 1006c3fb27SDimitry Andric // Solutions of Sandia, LLC (NTESS). 1106c3fb27SDimitry Andric // 1206c3fb27SDimitry Andric // Under the terms of Contract DE-NA0003525 with NTESS, 1306c3fb27SDimitry Andric // the U.S. Government retains certain rights in this software. 1406c3fb27SDimitry Andric // 1506c3fb27SDimitry Andric //===---------------------------------------------------------------------===// 1606c3fb27SDimitry Andric 1706c3fb27SDimitry Andric #ifndef _LIBCPP___MDSPAN_LAYOUTS_H 1806c3fb27SDimitry Andric #define _LIBCPP___MDSPAN_LAYOUTS_H 1906c3fb27SDimitry Andric 2006c3fb27SDimitry Andric #include <__config> 2106c3fb27SDimitry Andric 2206c3fb27SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 2306c3fb27SDimitry Andric # pragma GCC system_header 2406c3fb27SDimitry Andric #endif 2506c3fb27SDimitry Andric 2606c3fb27SDimitry Andric _LIBCPP_PUSH_MACROS 2706c3fb27SDimitry Andric #include <__undef_macros> 2806c3fb27SDimitry Andric 2906c3fb27SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 3006c3fb27SDimitry Andric 3106c3fb27SDimitry Andric #if _LIBCPP_STD_VER >= 23 3206c3fb27SDimitry Andric 3306c3fb27SDimitry Andric // Layout policy with a mapping which corresponds to FORTRAN-style array layouts 3406c3fb27SDimitry Andric struct layout_left { 3506c3fb27SDimitry Andric template <class _Extents> 3606c3fb27SDimitry Andric class mapping; 3706c3fb27SDimitry Andric }; 3806c3fb27SDimitry Andric 3906c3fb27SDimitry Andric // Layout policy with a mapping which corresponds to C-style array layouts 4006c3fb27SDimitry Andric struct layout_right { 4106c3fb27SDimitry Andric template <class _Extents> 4206c3fb27SDimitry Andric class mapping; 4306c3fb27SDimitry Andric }; 4406c3fb27SDimitry Andric 4506c3fb27SDimitry Andric // Layout policy with a unique mapping where strides are arbitrary 4606c3fb27SDimitry Andric struct layout_stride { 47*5f757f3fSDimitry Andric template <class _Extents> 4806c3fb27SDimitry Andric class mapping; 4906c3fb27SDimitry Andric }; 5006c3fb27SDimitry Andric 5106c3fb27SDimitry Andric #endif // _LIBCPP_STD_VER >= 23 5206c3fb27SDimitry Andric 5306c3fb27SDimitry Andric _LIBCPP_END_NAMESPACE_STD 5406c3fb27SDimitry Andric 5506c3fb27SDimitry Andric _LIBCPP_POP_MACROS 5606c3fb27SDimitry Andric 5706c3fb27SDimitry Andric #endif // _LIBCPP___MDSPAN_LAYOUTS_H 58