forked from OSchip/llvm-project
86 lines
4.0 KiB
C++
86 lines
4.0 KiB
C++
// -*- 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_EQUAL_H
|
|
#define _LIBCPP___ALGORITHM_EQUAL_H
|
|
|
|
#include <__algorithm/comp.h>
|
|
#include <__config>
|
|
#include <__iterator/distance.h>
|
|
#include <__iterator/iterator_traits.h>
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
|
#pragma GCC system_header
|
|
#endif
|
|
|
|
_LIBCPP_BEGIN_NAMESPACE_STD
|
|
|
|
template <class _InputIterator1, class _InputIterator2, class _BinaryPredicate>
|
|
_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
|
|
equal(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _BinaryPredicate __pred) {
|
|
for (; __first1 != __last1; ++__first1, (void)++__first2)
|
|
if (!__pred(*__first1, *__first2))
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
template <class _InputIterator1, class _InputIterator2>
|
|
_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
|
|
equal(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2) {
|
|
typedef typename iterator_traits<_InputIterator1>::value_type __v1;
|
|
typedef typename iterator_traits<_InputIterator2>::value_type __v2;
|
|
return _VSTD::equal(__first1, __last1, __first2, __equal_to<__v1, __v2>());
|
|
}
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
template <class _BinaryPredicate, class _InputIterator1, class _InputIterator2>
|
|
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
|
|
__equal(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _InputIterator2 __last2,
|
|
_BinaryPredicate __pred, input_iterator_tag, input_iterator_tag) {
|
|
for (; __first1 != __last1 && __first2 != __last2; ++__first1, (void)++__first2)
|
|
if (!__pred(*__first1, *__first2))
|
|
return false;
|
|
return __first1 == __last1 && __first2 == __last2;
|
|
}
|
|
|
|
template <class _BinaryPredicate, class _RandomAccessIterator1, class _RandomAccessIterator2>
|
|
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
|
|
__equal(_RandomAccessIterator1 __first1, _RandomAccessIterator1 __last1, _RandomAccessIterator2 __first2,
|
|
_RandomAccessIterator2 __last2, _BinaryPredicate __pred, random_access_iterator_tag,
|
|
random_access_iterator_tag) {
|
|
if (_VSTD::distance(__first1, __last1) != _VSTD::distance(__first2, __last2))
|
|
return false;
|
|
return _VSTD::equal<_RandomAccessIterator1, _RandomAccessIterator2,
|
|
_BinaryPredicate&>(__first1, __last1, __first2, __pred);
|
|
}
|
|
|
|
template <class _InputIterator1, class _InputIterator2, class _BinaryPredicate>
|
|
_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
|
|
equal(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _InputIterator2 __last2,
|
|
_BinaryPredicate __pred) {
|
|
return _VSTD::__equal<_BinaryPredicate&>(
|
|
__first1, __last1, __first2, __last2, __pred, typename iterator_traits<_InputIterator1>::iterator_category(),
|
|
typename iterator_traits<_InputIterator2>::iterator_category());
|
|
}
|
|
|
|
template <class _InputIterator1, class _InputIterator2>
|
|
_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 bool
|
|
equal(_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::__equal(__first1, __last1, __first2, __last2, __equal_to<__v1, __v2>(),
|
|
typename iterator_traits<_InputIterator1>::iterator_category(),
|
|
typename iterator_traits<_InputIterator2>::iterator_category());
|
|
}
|
|
#endif
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
#endif // _LIBCPP___ALGORITHM_EQUAL_H
|