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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// Kokkos v. 4.0
// Copyright (2022) National Technology & Engineering
// Solutions of Sandia, LLC (NTESS).
//
// Under the terms of Contract DE-NA0003525 with NTESS,
// the U.S. Government retains certain rights in this software.
//
//===---------------------------------------------------------------------===//
#ifndef _LIBCPP___MDSPAN_LAYOUTS_H
#define _LIBCPP___MDSPAN_LAYOUTS_H
#include <__config>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include <__undef_macros>
_LIBCPP_BEGIN_NAMESPACE_STD
#if _LIBCPP_STD_VER >= 23
// Layout policy with a mapping which corresponds to FORTRAN-style array layouts
struct layout_left {
template <class _Extents>
class mapping;
};
// Layout policy with a mapping which corresponds to C-style array layouts
struct layout_right {
template <class _Extents>
class mapping;
};
/*
// Will be implemented with follow on revision
// Layout policy with a unique mapping where strides are arbitrary
struct layout_stride {
template<class Extents>
class mapping;
};
*/
#endif // _LIBCPP_STD_VER >= 23
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___MDSPAN_LAYOUTS_H
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