author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 11 Jun 2010 15:26:22 +0300 | |
changeset 34 | 5fae379060a7 |
parent 0 | e4d67989cc36 |
permissions | -rw-r--r-- |
0
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/* |
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* |
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* Portions Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. |
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* |
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* Copyright (c) 1994 |
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* Hewlett-Packard Company |
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* |
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* Copyright (c) 1996,1997 |
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* Silicon Graphics Computer Systems, Inc. |
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* |
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* Copyright (c) 1997 |
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* Moscow Center for SPARC Technology |
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* |
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* Copyright (c) 1999 |
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* Boris Fomitchev |
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* |
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* This material is provided "as is", with absolutely no warranty expressed |
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* or implied. Any use is at your own risk. |
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* |
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* Permission to use or copy this software for any purpose is hereby granted |
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* without fee, provided the above notices are retained on all copies. |
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* Permission to modify the code and to distribute modified code is granted, |
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* provided the above notices are retained, and a notice that the code was |
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* modified is included with the above copyright notice. |
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* |
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*/ |
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#ifndef _STLP_ALGOBASE_C |
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#define _STLP_ALGOBASE_C |
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|
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#ifndef _STLP_INTERNAL_ALGOBASE_H |
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# include <stl/_algobase.h> |
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#endif |
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|
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_STLP_BEGIN_NAMESPACE |
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|
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template <class _InputIter1, class _InputIter2> |
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bool lexicographical_compare(_InputIter1 __first1, _InputIter1 __last1, |
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_InputIter2 __first2, _InputIter2 __last2) { |
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_STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first1, __last1)) |
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_STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first2, __last2)) |
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for ( ; __first1 != __last1 && __first2 != __last2 |
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; ++__first1, ++__first2) { |
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if (*__first1 < *__first2) { |
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return true; |
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} |
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if (*__first2 < *__first1) |
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return false; |
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} |
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return __first1 == __last1 && __first2 != __last2; |
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} |
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|
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template <class _InputIter1, class _InputIter2, class _Compare> |
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bool lexicographical_compare(_InputIter1 __first1, _InputIter1 __last1, |
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_InputIter2 __first2, _InputIter2 __last2, |
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_Compare __comp) { |
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_STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first1, __last1)) |
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_STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first2, __last2)) |
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for ( ; __first1 != __last1 && __first2 != __last2 |
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; ++__first1, ++__first2) { |
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if (__comp(*__first1, *__first2)) { |
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return true; |
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} |
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if (__comp(*__first2, *__first1)) |
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return false; |
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} |
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return __first1 == __last1 && __first2 != __last2; |
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} |
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#if !defined (_STLP_NO_EXTENSIONS) |
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_STLP_MOVE_TO_PRIV_NAMESPACE |
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|
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template <class _InputIter1, class _InputIter2> |
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int __lexicographical_compare_3way(_InputIter1 __first1, _InputIter1 __last1, |
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_InputIter2 __first2, _InputIter2 __last2) { |
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while (__first1 != __last1 && __first2 != __last2) { |
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if (*__first1 < *__first2) { |
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_STLP_VERBOSE_ASSERT(!(*__first2 < *__first1), _StlMsg_INVALID_STRICT_WEAK_PREDICATE) |
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return -1; |
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} |
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if (*__first2 < *__first1) |
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return 1; |
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++__first1; |
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++__first2; |
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} |
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if (__first2 == __last2) { |
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return !(__first1 == __last1); |
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} |
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else { |
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return -1; |
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} |
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} |
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|
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_STLP_MOVE_TO_STD_NAMESPACE |
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|
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template <class _InputIter1, class _InputIter2> |
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int lexicographical_compare_3way(_InputIter1 __first1, _InputIter1 __last1, |
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_InputIter2 __first2, _InputIter2 __last2) { |
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_STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first1, __last1)) |
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_STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first2, __last2)) |
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return _STLP_PRIV __lexicographical_compare_3way(__first1, __last1, __first2, __last2); |
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} |
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#endif |
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|
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_STLP_MOVE_TO_PRIV_NAMESPACE |
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|
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template <class _RandomAccessIter, class _Tp> |
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_STLP_INLINE_LOOP _RandomAccessIter __find(_RandomAccessIter __first, _RandomAccessIter __last, |
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const _Tp& __val, |
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const random_access_iterator_tag &) { |
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_STLP_DIFFERENCE_TYPE(_RandomAccessIter) __trip_count = (__last - __first) >> 2; |
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|
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for ( ; __trip_count > 0 ; --__trip_count) { |
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if (*__first == __val) return __first; |
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++__first; |
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if (*__first == __val) return __first; |
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++__first; |
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|
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if (*__first == __val) return __first; |
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++__first; |
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|
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if (*__first == __val) return __first; |
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++__first; |
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} |
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switch (__last - __first) { |
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case 3: |
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if (*__first == __val) return __first; |
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++__first; |
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case 2: |
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if (*__first == __val) return __first; |
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++__first; |
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case 1: |
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if (*__first == __val) return __first; |
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//++__first; |
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case 0: |
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default: |
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return __last; |
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} |
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} |
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|
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inline char* |
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__find(char* __first, char* __last, char __val, const random_access_iterator_tag &) { |
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void *res = memchr(__first, __val, __last - __first); |
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return res != 0 ? __STATIC_CAST(char*, res) : __last; |
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} |
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inline const char* |
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__find(const char* __first, const char* __last, char __val, const random_access_iterator_tag &) { |
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const void *res = memchr(__first, __val, __last - __first); |
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return res != 0 ? __STATIC_CAST(const char*, res) : __last; |
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} |
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|
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template <class _RandomAccessIter, class _Predicate> |
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_STLP_INLINE_LOOP _RandomAccessIter __find_if(_RandomAccessIter __first, _RandomAccessIter __last, |
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_Predicate __pred, |
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const random_access_iterator_tag &) { |
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_STLP_DIFFERENCE_TYPE(_RandomAccessIter) __trip_count = (__last - __first) >> 2; |
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|
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for ( ; __trip_count > 0 ; --__trip_count) { |
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if (__pred(*__first)) return __first; |
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++__first; |
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|
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if (__pred(*__first)) return __first; |
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++__first; |
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|
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if (__pred(*__first)) return __first; |
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++__first; |
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|
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if (__pred(*__first)) return __first; |
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++__first; |
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} |
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|
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switch(__last - __first) { |
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case 3: |
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if (__pred(*__first)) return __first; |
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++__first; |
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case 2: |
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if (__pred(*__first)) return __first; |
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++__first; |
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case 1: |
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if (__pred(*__first)) return __first; |
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//++__first; |
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case 0: |
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default: |
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return __last; |
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} |
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} |
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|
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template <class _InputIter, class _Tp> |
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_STLP_INLINE_LOOP _InputIter __find(_InputIter __first, _InputIter __last, |
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const _Tp& __val, |
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const input_iterator_tag &) { |
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while (__first != __last && !(*__first == __val)) ++__first; |
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return __first; |
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} |
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|
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template <class _InputIter, class _Predicate> |
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_STLP_INLINE_LOOP _InputIter __find_if(_InputIter __first, _STLP_MPW_EXTRA_CONST _InputIter __last, |
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_Predicate __pred, |
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const input_iterator_tag &) { |
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while (__first != __last && !__pred(*__first)) |
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++__first; |
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return __first; |
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} |
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|
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_STLP_MOVE_TO_STD_NAMESPACE |
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template <class _InputIter, class _Predicate> |
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_InputIter find_if(_InputIter __first, _InputIter __last, |
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_Predicate __pred) { |
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_STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first, __last)) |
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return _STLP_PRIV __find_if(__first, __last, __pred, _STLP_ITERATOR_CATEGORY(__first, _InputIter)); |
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} |
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template <class _InputIter, class _Tp> |
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_InputIter find(_InputIter __first, _InputIter __last, const _Tp& __val) { |
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_STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first, __last)) |
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return _STLP_PRIV __find(__first, __last, __val, _STLP_ITERATOR_CATEGORY(__first, _InputIter)); |
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} |
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|
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template <class _ForwardIter1, class _ForwardIter2, class _BinaryPred> |
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_ForwardIter1 search(_ForwardIter1 __first1, _ForwardIter1 __last1, |
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_ForwardIter2 __first2, _ForwardIter2 __last2, |
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_BinaryPred __pred) { |
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_STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first1, __last1)) |
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_STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first2, __last2)) |
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// Test for empty ranges |
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if (__first1 == __last1 || __first2 == __last2) |
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return __first1; |
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// Test for a pattern of length 1. |
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_ForwardIter2 __p1(__first2); |
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|
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if ( ++__p1 == __last2 ) { |
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while (__first1 != __last1 && !__pred(*__first1, *__first2)) { |
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++__first1; |
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} |
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return __first1; |
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} |
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// General case. |
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for ( ; ; ) { // __first1 != __last1 will be checked below |
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while (__first1 != __last1 && !__pred(*__first1, *__first2)) { |
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++__first1; |
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} |
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if (__first1 == __last1) { |
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return __last1; |
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} |
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_ForwardIter2 __p = __p1; |
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_ForwardIter1 __current = __first1; |
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if (++__current == __last1) return __last1; |
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|
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while (__pred(*__current, *__p)) { |
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if (++__p == __last2) |
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return __first1; |
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if (++__current == __last1) |
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return __last1; |
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} |
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|
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++__first1; |
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} |
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return __first1; |
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} |
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|
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_STLP_MOVE_TO_PRIV_NAMESPACE |
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|
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// find_first_of, with and without an explicitly supplied comparison function. |
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template <class _InputIter, class _ForwardIter, class _BinaryPredicate> |
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_InputIter __find_first_of(_InputIter __first1, _InputIter __last1, |
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_ForwardIter __first2, _ForwardIter __last2, |
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_BinaryPredicate __comp) { |
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for ( ; __first1 != __last1; ++__first1) { |
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for (_ForwardIter __iter = __first2; __iter != __last2; ++__iter) { |
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if (__comp(*__first1, *__iter)) { |
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return __first1; |
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} |
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} |
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} |
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return __last1; |
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} |
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|
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// find_end, with and without an explicitly supplied comparison function. |
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// Search [first2, last2) as a subsequence in [first1, last1), and return |
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// the *last* possible match. Note that find_end for bidirectional iterators |
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// is much faster than for forward iterators. |
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|
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// find_end for forward iterators. |
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template <class _ForwardIter1, class _ForwardIter2, |
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class _BinaryPredicate> |
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_ForwardIter1 __find_end(_ForwardIter1 __first1, _ForwardIter1 __last1, |
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_ForwardIter2 __first2, _ForwardIter2 __last2, |
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const forward_iterator_tag &, const forward_iterator_tag &, |
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_BinaryPredicate __comp) { |
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if (__first2 == __last2) |
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return __last1; |
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else { |
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_ForwardIter1 __result = __last1; |
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for (;;) { |
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_ForwardIter1 __new_result = search(__first1, __last1, __first2, __last2, __comp); |
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if (__new_result == __last1) |
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return __result; |
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else { |
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__result = __new_result; |
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__first1 = __new_result; |
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++__first1; |
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} |
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} |
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} |
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} |
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|
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_STLP_MOVE_TO_STD_NAMESPACE |
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|
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// find_end for bidirectional iterators. Requires partial specialization. |
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#if defined (_STLP_CLASS_PARTIAL_SPECIALIZATION) |
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# ifndef _STLP_INTERNAL_ITERATOR_H |
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_STLP_END_NAMESPACE |
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# include <stl/_iterator.h> |
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_STLP_BEGIN_NAMESPACE |
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# endif /*_STLP_INTERNAL_ITERATOR_H*/ |
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|
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_STLP_MOVE_TO_PRIV_NAMESPACE |
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|
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template <class _BidirectionalIter1, class _BidirectionalIter2, |
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class _BinaryPredicate> |
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_BidirectionalIter1 |
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__find_end(_BidirectionalIter1 __first1, _BidirectionalIter1 __last1, |
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_BidirectionalIter2 __first2, _BidirectionalIter2 __last2, |
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const bidirectional_iterator_tag &, const bidirectional_iterator_tag &, |
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_BinaryPredicate __comp) { |
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typedef reverse_iterator<_BidirectionalIter1> _RevIter1; |
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typedef reverse_iterator<_BidirectionalIter2> _RevIter2; |
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|
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_RevIter1 __rlast1(__first1); |
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_RevIter2 __rlast2(__first2); |
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_RevIter1 __rresult = search(_RevIter1(__last1), __rlast1, |
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_RevIter2(__last2), __rlast2, |
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__comp); |
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|
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if (__rresult == __rlast1) |
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return __last1; |
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else { |
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_BidirectionalIter1 __result = __rresult.base(); |
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advance(__result, -distance(__first2, __last2)); |
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return __result; |
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} |
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} |
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|
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_STLP_MOVE_TO_STD_NAMESPACE |
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#endif /* _STLP_CLASS_PARTIAL_SPECIALIZATION */ |
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|
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template <class _ForwardIter1, class _ForwardIter2, |
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class _BinaryPredicate> |
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_ForwardIter1 |
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find_end(_ForwardIter1 __first1, _ForwardIter1 __last1, |
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_ForwardIter2 __first2, _ForwardIter2 __last2, |
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_BinaryPredicate __comp) { |
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_STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first1, __last1)) |
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_STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first2, __last2)) |
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return _STLP_PRIV __find_end(__first1, __last1, __first2, __last2, |
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#if defined (_STLP_CLASS_PARTIAL_SPECIALIZATION) |
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_STLP_ITERATOR_CATEGORY(__first1, _ForwardIter1), |
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_STLP_ITERATOR_CATEGORY(__first2, _ForwardIter2), |
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#else |
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forward_iterator_tag(), |
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forward_iterator_tag(), |
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#endif |
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__comp); |
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} |
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|
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_STLP_MOVE_TO_PRIV_NAMESPACE |
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|
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template <class _ForwardIter, class _Tp, class _Compare1, class _Compare2, class _Distance> |
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_ForwardIter __lower_bound(_ForwardIter __first, _ForwardIter __last, const _Tp& __val, |
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_Compare1 __comp1, _Compare2 __comp2, _Distance*) { |
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_Distance __len = distance(__first, __last); |
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_Distance __half; |
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_ForwardIter __middle; |
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|
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while (__len > 0) { |
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__half = __len >> 1; |
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__middle = __first; |
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advance(__middle, __half); |
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if (__comp1(*__middle, __val)) { |
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_STLP_VERBOSE_ASSERT(!__comp2(__val, *__middle), _StlMsg_INVALID_STRICT_WEAK_PREDICATE) |
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__first = __middle; |
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++__first; |
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__len = __len - __half - 1; |
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} |
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else |
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__len = __half; |
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} |
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if (&__comp2) {/* do nothing. to avoid warnings */} |
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return __first; |
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} |
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|
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_STLP_MOVE_TO_STD_NAMESPACE |
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|
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_STLP_END_NAMESPACE |
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|
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#endif /* _STLP_ALGOBASE_C */ |
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|
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// Local Variables: |
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// mode:C++ |
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// End: |