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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-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #ifndef _LIBCPP___CXX03___ALGORITHM_LEXICOGRAPHICAL_COMPARE_H |
| 10 | #define _LIBCPP___CXX03___ALGORITHM_LEXICOGRAPHICAL_COMPARE_H |
| 11 | |
| 12 | #include <__cxx03/__algorithm/comp.h> |
| 13 | #include <__cxx03/__algorithm/comp_ref_type.h> |
| 14 | #include <__cxx03/__config> |
| 15 | #include <__cxx03/__iterator/iterator_traits.h> |
| 16 | |
| 17 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 18 | # pragma GCC system_header |
| 19 | #endif |
| 20 | |
| 21 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 22 | |
| 23 | template <class _Compare, class _InputIterator1, class _InputIterator2> |
| 24 | _LIBCPP_HIDE_FROM_ABI bool __lexicographical_compare( |
| 25 | _InputIterator1 __first1, |
| 26 | _InputIterator1 __last1, |
| 27 | _InputIterator2 __first2, |
| 28 | _InputIterator2 __last2, |
| 29 | _Compare __comp) { |
| 30 | for (; __first2 != __last2; ++__first1, (void)++__first2) { |
| 31 | if (__first1 == __last1 || __comp(*__first1, *__first2)) |
| 32 | return true; |
| 33 | if (__comp(*__first2, *__first1)) |
| 34 | return false; |
| 35 | } |
| 36 | return false; |
| 37 | } |
| 38 | |
| 39 | template <class _InputIterator1, class _InputIterator2, class _Compare> |
| 40 | _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI bool lexicographical_compare( |
| 41 | _InputIterator1 __first1, |
| 42 | _InputIterator1 __last1, |
| 43 | _InputIterator2 __first2, |
| 44 | _InputIterator2 __last2, |
| 45 | _Compare __comp) { |
| 46 | return std::__lexicographical_compare<__comp_ref_type<_Compare> >(__first1, __last1, __first2, __last2, __comp); |
| 47 | } |
| 48 | |
| 49 | template <class _InputIterator1, class _InputIterator2> |
| 50 | _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI bool lexicographical_compare( |
| 51 | _InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _InputIterator2 __last2) { |
| 52 | return std::lexicographical_compare(__first1, __last1, __first2, __last2, __less<>()); |
| 53 | } |
| 54 | |
| 55 | _LIBCPP_END_NAMESPACE_STD |
| 56 | |
| 57 | #endif // _LIBCPP___CXX03___ALGORITHM_LEXICOGRAPHICAL_COMPARE_H |
| 58 |
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