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- //===----------------------------------------------------------------------===//
- //
- // 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_LEXICOGRAPHICAL_COMPARE_H
- #define _LIBCPP___ALGORITHM_LEXICOGRAPHICAL_COMPARE_H
- #include <__algorithm/comp.h>
- #include <__algorithm/comp_ref_type.h>
- #include <__config>
- #include <__iterator/iterator_traits.h>
- #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
- # pragma GCC system_header
- #endif
- _LIBCPP_BEGIN_NAMESPACE_STD
- template <class _Compare, class _InputIterator1, class _InputIterator2>
- _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool __lexicographical_compare(
- _InputIterator1 __first1,
- _InputIterator1 __last1,
- _InputIterator2 __first2,
- _InputIterator2 __last2,
- _Compare __comp) {
- for (; __first2 != __last2; ++__first1, (void)++__first2) {
- if (__first1 == __last1 || __comp(*__first1, *__first2))
- return true;
- if (__comp(*__first2, *__first1))
- return false;
- }
- return false;
- }
- template <class _InputIterator1, class _InputIterator2, class _Compare>
- _LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool lexicographical_compare(
- _InputIterator1 __first1,
- _InputIterator1 __last1,
- _InputIterator2 __first2,
- _InputIterator2 __last2,
- _Compare __comp) {
- return std::__lexicographical_compare<__comp_ref_type<_Compare> >(__first1, __last1, __first2, __last2, __comp);
- }
- template <class _InputIterator1, class _InputIterator2>
- _LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool lexicographical_compare(
- _InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _InputIterator2 __last2) {
- return std::lexicographical_compare(__first1, __last1, __first2, __last2, __less<>());
- }
- _LIBCPP_END_NAMESPACE_STD
- #endif // _LIBCPP___ALGORITHM_LEXICOGRAPHICAL_COMPARE_H
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