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2aea8af251
Reviewed By: ldionne, Mordante, var-const, #libc Spies: mgorny, libcxx-commits Differential Revision: https://reviews.llvm.org/D128181
43 lines
1.3 KiB
C++
43 lines
1.3 KiB
C++
//===----------------------------------------------------------------------===//
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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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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___LIBCXX_DEBUG_RANDOMIZE_RANGE_H
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#define _LIBCPP___LIBCXX_DEBUG_RANDOMIZE_RANGE_H
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#include <__config>
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#ifdef _LIBCPP_DEBUG_RANDOMIZE_UNSPECIFIED_STABILITY
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# include <__algorithm/shuffle.h>
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# include <__type_traits/is_constant_evaluated.h>
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#endif
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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_BEGIN_NAMESPACE_STD
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template <class _Iterator>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 void __debug_randomize_range(_Iterator __first, _Iterator __last) {
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#ifdef _LIBCPP_DEBUG_RANDOMIZE_UNSPECIFIED_STABILITY
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# ifdef _LIBCPP_CXX03_LANG
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# error Support for unspecified stability is only for C++11 and higher
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# endif
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if (!__libcpp_is_constant_evaluated())
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std::shuffle(__first, __last, __libcpp_debug_randomizer());
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#else
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(void)__first;
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(void)__last;
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#endif
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}
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___LIBCXX_DEBUG_RANDOMIZE_RANGE_H
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