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1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef _LIBCPP___LIBCXX_DEBUG_RANDOMIZE_RANGE_H10#define _LIBCPP___LIBCXX_DEBUG_RANDOMIZE_RANGE_H11 12#include <__config>13 14#ifdef _LIBCPP_DEBUG_RANDOMIZE_UNSPECIFIED_STABILITY15# include <__algorithm/shuffle.h>16# include <__type_traits/is_constant_evaluated.h>17#endif18 19#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)20# pragma GCC system_header21#endif22 23_LIBCPP_BEGIN_NAMESPACE_STD24 25template <class _AlgPolicy, class _Iterator, class _Sentinel>26_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 void __debug_randomize_range(_Iterator __first, _Sentinel __last) {27#ifdef _LIBCPP_DEBUG_RANDOMIZE_UNSPECIFIED_STABILITY28# ifdef _LIBCPP_CXX03_LANG29# error Support for unspecified stability is only for C++11 and higher30# endif31 32 if (!__libcpp_is_constant_evaluated())33 std::__shuffle<_AlgPolicy>(__first, __last, __libcpp_debug_randomizer());34#else35 (void)__first;36 (void)__last;37#endif38}39 40_LIBCPP_END_NAMESPACE_STD41 42#endif // _LIBCPP___LIBCXX_DEBUG_RANDOMIZE_RANGE_H43