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Diffstat (limited to 'libcxx/include/__algorithm/mismatch.h')
-rw-r--r-- | libcxx/include/__algorithm/mismatch.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/libcxx/include/__algorithm/mismatch.h b/libcxx/include/__algorithm/mismatch.h new file mode 100644 index 000000000000..fdd2bc8c09c1 --- /dev/null +++ b/libcxx/include/__algorithm/mismatch.h @@ -0,0 +1,72 @@ +// -*- 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 +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___ALGORITHM_MISMATCH_H +#define _LIBCPP___ALGORITHM_MISMATCH_H + +#include <__config> +#include <__algorithm/comp.h> +#include <__iterator/iterator_traits.h> +#include <utility> + +#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +#pragma GCC system_header +#endif + +_LIBCPP_PUSH_MACROS +#include <__undef_macros> + +_LIBCPP_BEGIN_NAMESPACE_STD + +template <class _InputIterator1, class _InputIterator2, class _BinaryPredicate> +_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY + _LIBCPP_CONSTEXPR_AFTER_CXX17 pair<_InputIterator1, _InputIterator2> + mismatch(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _BinaryPredicate __pred) { + for (; __first1 != __last1; ++__first1, (void)++__first2) + if (!__pred(*__first1, *__first2)) + break; + return pair<_InputIterator1, _InputIterator2>(__first1, __first2); +} + +template <class _InputIterator1, class _InputIterator2> +_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY + _LIBCPP_CONSTEXPR_AFTER_CXX17 pair<_InputIterator1, _InputIterator2> + mismatch(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2) { + typedef typename iterator_traits<_InputIterator1>::value_type __v1; + typedef typename iterator_traits<_InputIterator2>::value_type __v2; + return _VSTD::mismatch(__first1, __last1, __first2, __equal_to<__v1, __v2>()); +} + +#if _LIBCPP_STD_VER > 11 +template <class _InputIterator1, class _InputIterator2, class _BinaryPredicate> +_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY + _LIBCPP_CONSTEXPR_AFTER_CXX17 pair<_InputIterator1, _InputIterator2> + mismatch(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _InputIterator2 __last2, + _BinaryPredicate __pred) { + for (; __first1 != __last1 && __first2 != __last2; ++__first1, (void)++__first2) + if (!__pred(*__first1, *__first2)) + break; + return pair<_InputIterator1, _InputIterator2>(__first1, __first2); +} + +template <class _InputIterator1, class _InputIterator2> +_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY + _LIBCPP_CONSTEXPR_AFTER_CXX17 pair<_InputIterator1, _InputIterator2> + mismatch(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _InputIterator2 __last2) { + typedef typename iterator_traits<_InputIterator1>::value_type __v1; + typedef typename iterator_traits<_InputIterator2>::value_type __v2; + return _VSTD::mismatch(__first1, __last1, __first2, __last2, __equal_to<__v1, __v2>()); +} +#endif + +_LIBCPP_END_NAMESPACE_STD + +_LIBCPP_POP_MACROS + +#endif // _LIBCPP___ALGORITHM_MISMATCH_H |