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5d4439cc3e
release/17.x branch, commit 8f4dd44097c9ae25dd203d5ac87f3b48f854bba8 This adds the flag `-D_LIBCPP_PSTL_CPU_BACKEND_SERIAL`. A future enhancement could possibly pass something different if there is a compelling parallel implementation. That libdispatch one might be worth looking into.
60 lines
1.5 KiB
C++
Vendored
60 lines
1.5 KiB
C++
Vendored
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// Kokkos v. 4.0
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// Copyright (2022) National Technology & Engineering
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// Solutions of Sandia, LLC (NTESS).
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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//===---------------------------------------------------------------------===//
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#ifndef _LIBCPP___MDSPAN_LAYOUTS_H
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#define _LIBCPP___MDSPAN_LAYOUTS_H
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#include <__config>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_PUSH_MACROS
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#include <__undef_macros>
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_LIBCPP_BEGIN_NAMESPACE_STD
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#if _LIBCPP_STD_VER >= 23
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// Layout policy with a mapping which corresponds to FORTRAN-style array layouts
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struct layout_left {
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template <class _Extents>
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class mapping;
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};
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// Layout policy with a mapping which corresponds to C-style array layouts
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struct layout_right {
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template <class _Extents>
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class mapping;
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};
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/*
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// Will be implemented with follow on revision
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// Layout policy with a unique mapping where strides are arbitrary
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struct layout_stride {
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template<class Extents>
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class mapping;
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};
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*/
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#endif // _LIBCPP_STD_VER >= 23
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_LIBCPP_END_NAMESPACE_STD
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_LIBCPP_POP_MACROS
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#endif // _LIBCPP___MDSPAN_LAYOUTS_H
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