// Algorithm implementation -*- C++ -*-
-// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
-// 2010, 2011
-// Free Software Foundation, Inc.
+// Copyright (C) 2001-2014 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
#include <bits/algorithmfwd.h>
#include <bits/stl_heap.h>
#include <bits/stl_tempbuf.h> // for _Temporary_buffer
+#include <bits/predefined_ops.h>
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
+#if __cplusplus >= 201103L
#include <random> // for std::uniform_int_distribution
-#include <functional> // for std::bind
#endif
// See concept_check.h for the __glibcxx_*_requires macros.
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
- /// Swaps the median value of *__a, *__b and *__c to *__a
- template<typename _Iterator>
- void
- __move_median_first(_Iterator __a, _Iterator __b, _Iterator __c)
- {
- // concept requirements
- __glibcxx_function_requires(_LessThanComparableConcept<
- typename iterator_traits<_Iterator>::value_type>)
-
- if (*__a < *__b)
- {
- if (*__b < *__c)
- std::iter_swap(__a, __b);
- else if (*__a < *__c)
- std::iter_swap(__a, __c);
- }
- else if (*__a < *__c)
- return;
- else if (*__b < *__c)
- std::iter_swap(__a, __c);
- else
- std::iter_swap(__a, __b);
- }
-
- /// Swaps the median value of *__a, *__b and *__c under __comp to *__a
+ /// Swaps the median value of *__a, *__b and *__c under __comp to *__result
template<typename _Iterator, typename _Compare>
void
- __move_median_first(_Iterator __a, _Iterator __b, _Iterator __c,
- _Compare __comp)
+ __move_median_to_first(_Iterator __result,_Iterator __a, _Iterator __b,
+ _Iterator __c, _Compare __comp)
{
- // concept requirements
- __glibcxx_function_requires(_BinaryFunctionConcept<_Compare, bool,
- typename iterator_traits<_Iterator>::value_type,
- typename iterator_traits<_Iterator>::value_type>)
-
- if (__comp(*__a, *__b))
+ if (__comp(__a, __b))
{
- if (__comp(*__b, *__c))
- std::iter_swap(__a, __b);
- else if (__comp(*__a, *__c))
- std::iter_swap(__a, __c);
+ if (__comp(__b, __c))
+ std::iter_swap(__result, __b);
+ else if (__comp(__a, __c))
+ std::iter_swap(__result, __c);
+ else
+ std::iter_swap(__result, __a);
}
- else if (__comp(*__a, *__c))
- return;
- else if (__comp(*__b, *__c))
- std::iter_swap(__a, __c);
+ else if (__comp(__a, __c))
+ std::iter_swap(__result, __a);
+ else if (__comp(__b, __c))
+ std::iter_swap(__result, __c);
else
- std::iter_swap(__a, __b);
+ std::iter_swap(__result, __b);
}
- // for_each
-
- /// This is an overload used by find() for the Input Iterator case.
- template<typename _InputIterator, typename _Tp>
- inline _InputIterator
- __find(_InputIterator __first, _InputIterator __last,
- const _Tp& __val, input_iterator_tag)
- {
- while (__first != __last && !(*__first == __val))
- ++__first;
- return __first;
- }
-
- /// This is an overload used by find_if() for the Input Iterator case.
+ /// This is an overload used by find algos for the Input Iterator case.
template<typename _InputIterator, typename _Predicate>
inline _InputIterator
__find_if(_InputIterator __first, _InputIterator __last,
_Predicate __pred, input_iterator_tag)
{
- while (__first != __last && !bool(__pred(*__first)))
+ while (__first != __last && !__pred(__first))
++__first;
return __first;
}
- /// This is an overload used by find() for the RAI case.
- template<typename _RandomAccessIterator, typename _Tp>
- _RandomAccessIterator
- __find(_RandomAccessIterator __first, _RandomAccessIterator __last,
- const _Tp& __val, random_access_iterator_tag)
- {
- typename iterator_traits<_RandomAccessIterator>::difference_type
- __trip_count = (__last - __first) >> 2;
-
- for (; __trip_count > 0; --__trip_count)
- {
- if (*__first == __val)
- return __first;
- ++__first;
-
- if (*__first == __val)
- return __first;
- ++__first;
-
- if (*__first == __val)
- return __first;
- ++__first;
-
- if (*__first == __val)
- return __first;
- ++__first;
- }
-
- switch (__last - __first)
- {
- case 3:
- if (*__first == __val)
- return __first;
- ++__first;
- case 2:
- if (*__first == __val)
- return __first;
- ++__first;
- case 1:
- if (*__first == __val)
- return __first;
- ++__first;
- case 0:
- default:
- return __last;
- }
- }
-
- /// This is an overload used by find_if() for the RAI case.
+ /// This is an overload used by find algos for the RAI case.
template<typename _RandomAccessIterator, typename _Predicate>
_RandomAccessIterator
__find_if(_RandomAccessIterator __first, _RandomAccessIterator __last,
for (; __trip_count > 0; --__trip_count)
{
- if (__pred(*__first))
+ if (__pred(__first))
return __first;
++__first;
- if (__pred(*__first))
+ if (__pred(__first))
return __first;
++__first;
- if (__pred(*__first))
+ if (__pred(__first))
return __first;
++__first;
- if (__pred(*__first))
+ if (__pred(__first))
return __first;
++__first;
}
switch (__last - __first)
{
case 3:
- if (__pred(*__first))
+ if (__pred(__first))
return __first;
++__first;
case 2:
- if (__pred(*__first))
+ if (__pred(__first))
return __first;
++__first;
case 1:
- if (__pred(*__first))
+ if (__pred(__first))
return __first;
++__first;
case 0:
}
}
- /// This is an overload used by find_if_not() for the Input Iterator case.
- template<typename _InputIterator, typename _Predicate>
- inline _InputIterator
- __find_if_not(_InputIterator __first, _InputIterator __last,
- _Predicate __pred, input_iterator_tag)
- {
- while (__first != __last && bool(__pred(*__first)))
- ++__first;
- return __first;
- }
-
- /// This is an overload used by find_if_not() for the RAI case.
- template<typename _RandomAccessIterator, typename _Predicate>
- _RandomAccessIterator
- __find_if_not(_RandomAccessIterator __first, _RandomAccessIterator __last,
- _Predicate __pred, random_access_iterator_tag)
+ template<typename _Iterator, typename _Predicate>
+ inline _Iterator
+ __find_if(_Iterator __first, _Iterator __last, _Predicate __pred)
{
- typename iterator_traits<_RandomAccessIterator>::difference_type
- __trip_count = (__last - __first) >> 2;
-
- for (; __trip_count > 0; --__trip_count)
- {
- if (!bool(__pred(*__first)))
- return __first;
- ++__first;
-
- if (!bool(__pred(*__first)))
- return __first;
- ++__first;
-
- if (!bool(__pred(*__first)))
- return __first;
- ++__first;
-
- if (!bool(__pred(*__first)))
- return __first;
- ++__first;
- }
-
- switch (__last - __first)
- {
- case 3:
- if (!bool(__pred(*__first)))
- return __first;
- ++__first;
- case 2:
- if (!bool(__pred(*__first)))
- return __first;
- ++__first;
- case 1:
- if (!bool(__pred(*__first)))
- return __first;
- ++__first;
- case 0:
- default:
- return __last;
- }
+ return __find_if(__first, __last, __pred,
+ std::__iterator_category(__first));
}
/// Provided for stable_partition to use.
__find_if_not(_InputIterator __first, _InputIterator __last,
_Predicate __pred)
{
- return std::__find_if_not(__first, __last, __pred,
- std::__iterator_category(__first));
+ return std::__find_if(__first, __last,
+ __gnu_cxx::__ops::__negate(__pred),
+ std::__iterator_category(__first));
}
/// Like find_if_not(), but uses and updates a count of the
__find_if_not_n(_InputIterator __first, _Distance& __len, _Predicate __pred)
{
for (; __len; --__len, ++__first)
- if (!bool(__pred(*__first)))
+ if (!__pred(__first))
break;
return __first;
}
// count_if
// search
- /**
- * This is an uglified
- * search_n(_ForwardIterator, _ForwardIterator, _Integer, const _Tp&)
- * overloaded for forward iterators.
- */
- template<typename _ForwardIterator, typename _Integer, typename _Tp>
- _ForwardIterator
- __search_n(_ForwardIterator __first, _ForwardIterator __last,
- _Integer __count, const _Tp& __val,
- std::forward_iterator_tag)
+ template<typename _ForwardIterator1, typename _ForwardIterator2,
+ typename _BinaryPredicate>
+ _ForwardIterator1
+ __search(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
+ _ForwardIterator2 __first2, _ForwardIterator2 __last2,
+ _BinaryPredicate __predicate)
{
- __first = _GLIBCXX_STD_A::find(__first, __last, __val);
- while (__first != __last)
- {
- typename iterator_traits<_ForwardIterator>::difference_type
- __n = __count;
- _ForwardIterator __i = __first;
- ++__i;
- while (__i != __last && __n != 1 && *__i == __val)
- {
- ++__i;
- --__n;
- }
- if (__n == 1)
- return __first;
- if (__i == __last)
- return __last;
- __first = _GLIBCXX_STD_A::find(++__i, __last, __val);
- }
- return __last;
- }
+ // Test for empty ranges
+ if (__first1 == __last1 || __first2 == __last2)
+ return __first1;
- /**
- * This is an uglified
- * search_n(_ForwardIterator, _ForwardIterator, _Integer, const _Tp&)
- * overloaded for random access iterators.
- */
- template<typename _RandomAccessIter, typename _Integer, typename _Tp>
- _RandomAccessIter
- __search_n(_RandomAccessIter __first, _RandomAccessIter __last,
- _Integer __count, const _Tp& __val,
- std::random_access_iterator_tag)
- {
-
- typedef typename std::iterator_traits<_RandomAccessIter>::difference_type
- _DistanceType;
+ // Test for a pattern of length 1.
+ _ForwardIterator2 __p1(__first2);
+ if (++__p1 == __last2)
+ return std::__find_if(__first1, __last1,
+ __gnu_cxx::__ops::__iter_comp_iter(__predicate, __first2));
- _DistanceType __tailSize = __last - __first;
- const _DistanceType __pattSize = __count;
+ // General case.
+ _ForwardIterator2 __p;
+ _ForwardIterator1 __current = __first1;
- if (__tailSize < __pattSize)
- return __last;
+ for (;;)
+ {
+ __first1 =
+ std::__find_if(__first1, __last1,
+ __gnu_cxx::__ops::__iter_comp_iter(__predicate, __first2));
- const _DistanceType __skipOffset = __pattSize - 1;
- _RandomAccessIter __lookAhead = __first + __skipOffset;
- __tailSize -= __pattSize;
+ if (__first1 == __last1)
+ return __last1;
- while (1) // the main loop...
- {
- // __lookAhead here is always pointing to the last element of next
- // possible match.
- while (!(*__lookAhead == __val)) // the skip loop...
- {
- if (__tailSize < __pattSize)
- return __last; // Failure
- __lookAhead += __pattSize;
- __tailSize -= __pattSize;
- }
- _DistanceType __remainder = __skipOffset;
- for (_RandomAccessIter __backTrack = __lookAhead - 1;
- *__backTrack == __val; --__backTrack)
+ __p = __p1;
+ __current = __first1;
+ if (++__current == __last1)
+ return __last1;
+
+ while (__predicate(__current, __p))
{
- if (--__remainder == 0)
- return (__lookAhead - __skipOffset); // Success
+ if (++__p == __last2)
+ return __first1;
+ if (++__current == __last1)
+ return __last1;
}
- if (__remainder > __tailSize)
- return __last; // Failure
- __lookAhead += __remainder;
- __tailSize -= __remainder;
+ ++__first1;
}
+ return __first1;
}
// search_n
/**
- * This is an uglified
- * search_n(_ForwardIterator, _ForwardIterator, _Integer, const _Tp&,
- * _BinaryPredicate)
- * overloaded for forward iterators.
+ * This is an helper function for search_n overloaded for forward iterators.
*/
- template<typename _ForwardIterator, typename _Integer, typename _Tp,
- typename _BinaryPredicate>
+ template<typename _ForwardIterator, typename _Integer,
+ typename _UnaryPredicate>
_ForwardIterator
- __search_n(_ForwardIterator __first, _ForwardIterator __last,
- _Integer __count, const _Tp& __val,
- _BinaryPredicate __binary_pred, std::forward_iterator_tag)
+ __search_n_aux(_ForwardIterator __first, _ForwardIterator __last,
+ _Integer __count, _UnaryPredicate __unary_pred,
+ std::forward_iterator_tag)
{
- while (__first != __last && !bool(__binary_pred(*__first, __val)))
- ++__first;
-
+ __first = std::__find_if(__first, __last, __unary_pred);
while (__first != __last)
{
typename iterator_traits<_ForwardIterator>::difference_type
__n = __count;
_ForwardIterator __i = __first;
++__i;
- while (__i != __last && __n != 1 && bool(__binary_pred(*__i, __val)))
+ while (__i != __last && __n != 1 && __unary_pred(__i))
{
++__i;
--__n;
return __first;
if (__i == __last)
return __last;
- __first = ++__i;
- while (__first != __last
- && !bool(__binary_pred(*__first, __val)))
- ++__first;
+ __first = std::__find_if(++__i, __last, __unary_pred);
}
return __last;
}
/**
- * This is an uglified
- * search_n(_ForwardIterator, _ForwardIterator, _Integer, const _Tp&,
- * _BinaryPredicate)
- * overloaded for random access iterators.
+ * This is an helper function for search_n overloaded for random access
+ * iterators.
*/
- template<typename _RandomAccessIter, typename _Integer, typename _Tp,
- typename _BinaryPredicate>
+ template<typename _RandomAccessIter, typename _Integer,
+ typename _UnaryPredicate>
_RandomAccessIter
- __search_n(_RandomAccessIter __first, _RandomAccessIter __last,
- _Integer __count, const _Tp& __val,
- _BinaryPredicate __binary_pred, std::random_access_iterator_tag)
+ __search_n_aux(_RandomAccessIter __first, _RandomAccessIter __last,
+ _Integer __count, _UnaryPredicate __unary_pred,
+ std::random_access_iterator_tag)
{
-
typedef typename std::iterator_traits<_RandomAccessIter>::difference_type
_DistanceType;
_DistanceType __tailSize = __last - __first;
- const _DistanceType __pattSize = __count;
-
- if (__tailSize < __pattSize)
- return __last;
-
- const _DistanceType __skipOffset = __pattSize - 1;
- _RandomAccessIter __lookAhead = __first + __skipOffset;
- __tailSize -= __pattSize;
+ _DistanceType __remainder = __count;
- while (1) // the main loop...
+ while (__remainder <= __tailSize) // the main loop...
{
- // __lookAhead here is always pointing to the last element of next
- // possible match.
- while (!bool(__binary_pred(*__lookAhead, __val))) // the skip loop...
- {
- if (__tailSize < __pattSize)
- return __last; // Failure
- __lookAhead += __pattSize;
- __tailSize -= __pattSize;
- }
- _DistanceType __remainder = __skipOffset;
- for (_RandomAccessIter __backTrack = __lookAhead - 1;
- __binary_pred(*__backTrack, __val); --__backTrack)
+ __first += __remainder;
+ __tailSize -= __remainder;
+ // __first here is always pointing to one past the last element of
+ // next possible match.
+ _RandomAccessIter __backTrack = __first;
+ while (__unary_pred(--__backTrack))
{
if (--__remainder == 0)
- return (__lookAhead - __skipOffset); // Success
+ return (__first - __count); // Success
}
- if (__remainder > __tailSize)
- return __last; // Failure
- __lookAhead += __remainder;
- __tailSize -= __remainder;
+ __remainder = __count + 1 - (__first - __backTrack);
}
+ return __last; // Failure
}
- // find_end for forward iterators.
- template<typename _ForwardIterator1, typename _ForwardIterator2>
- _ForwardIterator1
- __find_end(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
- _ForwardIterator2 __first2, _ForwardIterator2 __last2,
- forward_iterator_tag, forward_iterator_tag)
+ template<typename _ForwardIterator, typename _Integer,
+ typename _UnaryPredicate>
+ _ForwardIterator
+ __search_n(_ForwardIterator __first, _ForwardIterator __last,
+ _Integer __count,
+ _UnaryPredicate __unary_pred)
{
- if (__first2 == __last2)
- return __last1;
- else
- {
- _ForwardIterator1 __result = __last1;
- while (1)
- {
- _ForwardIterator1 __new_result
- = _GLIBCXX_STD_A::search(__first1, __last1, __first2, __last2);
- if (__new_result == __last1)
- return __result;
- else
- {
- __result = __new_result;
- __first1 = __new_result;
- ++__first1;
- }
- }
- }
+ if (__count <= 0)
+ return __first;
+
+ if (__count == 1)
+ return std::__find_if(__first, __last, __unary_pred);
+
+ return std::__search_n_aux(__first, __last, __count, __unary_pred,
+ std::__iterator_category(__first));
}
+ // find_end for forward iterators.
template<typename _ForwardIterator1, typename _ForwardIterator2,
typename _BinaryPredicate>
_ForwardIterator1
{
if (__first2 == __last2)
return __last1;
- else
+
+ _ForwardIterator1 __result = __last1;
+ while (1)
{
- _ForwardIterator1 __result = __last1;
- while (1)
+ _ForwardIterator1 __new_result
+ = std::__search(__first1, __last1, __first2, __last2, __comp);
+ if (__new_result == __last1)
+ return __result;
+ else
{
- _ForwardIterator1 __new_result
- = _GLIBCXX_STD_A::search(__first1, __last1, __first2,
- __last2, __comp);
- if (__new_result == __last1)
- return __result;
- else
- {
- __result = __new_result;
- __first1 = __new_result;
- ++__first1;
- }
+ __result = __new_result;
+ __first1 = __new_result;
+ ++__first1;
}
}
}
// find_end for bidirectional iterators (much faster).
- template<typename _BidirectionalIterator1, typename _BidirectionalIterator2>
- _BidirectionalIterator1
- __find_end(_BidirectionalIterator1 __first1,
- _BidirectionalIterator1 __last1,
- _BidirectionalIterator2 __first2,
- _BidirectionalIterator2 __last2,
- bidirectional_iterator_tag, bidirectional_iterator_tag)
- {
- // concept requirements
- __glibcxx_function_requires(_BidirectionalIteratorConcept<
- _BidirectionalIterator1>)
- __glibcxx_function_requires(_BidirectionalIteratorConcept<
- _BidirectionalIterator2>)
-
- typedef reverse_iterator<_BidirectionalIterator1> _RevIterator1;
- typedef reverse_iterator<_BidirectionalIterator2> _RevIterator2;
-
- _RevIterator1 __rlast1(__first1);
- _RevIterator2 __rlast2(__first2);
- _RevIterator1 __rresult = _GLIBCXX_STD_A::search(_RevIterator1(__last1),
- __rlast1,
- _RevIterator2(__last2),
- __rlast2);
-
- if (__rresult == __rlast1)
- return __last1;
- else
- {
- _BidirectionalIterator1 __result = __rresult.base();
- std::advance(__result, -std::distance(__first2, __last2));
- return __result;
- }
- }
-
template<typename _BidirectionalIterator1, typename _BidirectionalIterator2,
typename _BinaryPredicate>
_BidirectionalIterator1
_RevIterator1 __rlast1(__first1);
_RevIterator2 __rlast2(__first2);
- _RevIterator1 __rresult = std::search(_RevIterator1(__last1), __rlast1,
- _RevIterator2(__last2), __rlast2,
- __comp);
+ _RevIterator1 __rresult = std::__search(_RevIterator1(__last1), __rlast1,
+ _RevIterator2(__last2), __rlast2,
+ __comp);
if (__rresult == __rlast1)
return __last1;
* [__first2,__last2) and returns an iterator to the __first
* element of the sub-sequence, or @p __last1 if the sub-sequence
* is not found. The sub-sequence will be the last such
- * subsequence contained in [__first,__last1).
+ * subsequence contained in [__first1,__last1).
*
* Because the sub-sequence must lie completely within the range @p
* [__first1,__last1) it must start at a position less than @p
return std::__find_end(__first1, __last1, __first2, __last2,
std::__iterator_category(__first1),
- std::__iterator_category(__first2));
+ std::__iterator_category(__first2),
+ __gnu_cxx::__ops::__iter_equal_to_iter());
}
/**
return std::__find_end(__first1, __last1, __first2, __last2,
std::__iterator_category(__first1),
std::__iterator_category(__first2),
- __comp);
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
}
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
+#if __cplusplus >= 201103L
/**
* @brief Checks that a predicate is true for all the elements
* of a sequence.
__glibcxx_function_requires(_UnaryPredicateConcept<_Predicate,
typename iterator_traits<_InputIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- return std::__find_if_not(__first, __last, __pred);
+ return std::__find_if_not(__first, __last,
+ __gnu_cxx::__ops::__pred_iter(__pred));
}
/**
}
#endif
-
- /**
- * @brief Copy a sequence, removing elements of a given value.
- * @ingroup mutating_algorithms
- * @param __first An input iterator.
- * @param __last An input iterator.
- * @param __result An output iterator.
- * @param __value The value to be removed.
+ template<typename _InputIterator, typename _OutputIterator,
+ typename _Predicate>
+ _OutputIterator
+ __remove_copy_if(_InputIterator __first, _InputIterator __last,
+ _OutputIterator __result, _Predicate __pred)
+ {
+ for (; __first != __last; ++__first)
+ if (!__pred(__first))
+ {
+ *__result = *__first;
+ ++__result;
+ }
+ return __result;
+ }
+
+ /**
+ * @brief Copy a sequence, removing elements of a given value.
+ * @ingroup mutating_algorithms
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __result An output iterator.
+ * @param __value The value to be removed.
* @return An iterator designating the end of the resulting sequence.
*
* Copies each element in the range @p [__first,__last) not equal
* are copied is unchanged.
*/
template<typename _InputIterator, typename _OutputIterator, typename _Tp>
- _OutputIterator
+ inline _OutputIterator
remove_copy(_InputIterator __first, _InputIterator __last,
_OutputIterator __result, const _Tp& __value)
{
typename iterator_traits<_InputIterator>::value_type, _Tp>)
__glibcxx_requires_valid_range(__first, __last);
- for (; __first != __last; ++__first)
- if (!(*__first == __value))
- {
- *__result = *__first;
- ++__result;
- }
- return __result;
+ return std::__remove_copy_if(__first, __last, __result,
+ __gnu_cxx::__ops::__iter_equals_val(__value));
}
/**
*/
template<typename _InputIterator, typename _OutputIterator,
typename _Predicate>
- _OutputIterator
+ inline _OutputIterator
remove_copy_if(_InputIterator __first, _InputIterator __last,
_OutputIterator __result, _Predicate __pred)
{
typename iterator_traits<_InputIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- for (; __first != __last; ++__first)
- if (!bool(__pred(*__first)))
- {
- *__result = *__first;
- ++__result;
- }
- return __result;
+ return std::__remove_copy_if(__first, __last, __result,
+ __gnu_cxx::__ops::__pred_iter(__pred));
}
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
+#if __cplusplus >= 201103L
/**
* @brief Copy the elements of a sequence for which a predicate is true.
* @ingroup mutating_algorithms
return __result;
}
-
template<typename _InputIterator, typename _Size, typename _OutputIterator>
_OutputIterator
__copy_n(_InputIterator __first, _Size __n,
}
#endif
+ template<typename _ForwardIterator, typename _Predicate>
+ _ForwardIterator
+ __remove_if(_ForwardIterator __first, _ForwardIterator __last,
+ _Predicate __pred)
+ {
+ __first = std::__find_if(__first, __last, __pred);
+ if (__first == __last)
+ return __first;
+ _ForwardIterator __result = __first;
+ ++__first;
+ for (; __first != __last; ++__first)
+ if (!__pred(__first))
+ {
+ *__result = _GLIBCXX_MOVE(*__first);
+ ++__result;
+ }
+ return __result;
+ }
+
/**
* @brief Remove elements from a sequence.
* @ingroup mutating_algorithms
* are still present, but their value is unspecified.
*/
template<typename _ForwardIterator, typename _Tp>
- _ForwardIterator
+ inline _ForwardIterator
remove(_ForwardIterator __first, _ForwardIterator __last,
const _Tp& __value)
{
typename iterator_traits<_ForwardIterator>::value_type, _Tp>)
__glibcxx_requires_valid_range(__first, __last);
- __first = _GLIBCXX_STD_A::find(__first, __last, __value);
- if(__first == __last)
- return __first;
- _ForwardIterator __result = __first;
- ++__first;
- for(; __first != __last; ++__first)
- if(!(*__first == __value))
- {
- *__result = _GLIBCXX_MOVE(*__first);
- ++__result;
- }
- return __result;
+ return std::__remove_if(__first, __last,
+ __gnu_cxx::__ops::__iter_equals_val(__value));
}
/**
* are still present, but their value is unspecified.
*/
template<typename _ForwardIterator, typename _Predicate>
- _ForwardIterator
+ inline _ForwardIterator
remove_if(_ForwardIterator __first, _ForwardIterator __last,
_Predicate __pred)
{
typename iterator_traits<_ForwardIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- __first = _GLIBCXX_STD_A::find_if(__first, __last, __pred);
- if(__first == __last)
- return __first;
- _ForwardIterator __result = __first;
+ return std::__remove_if(__first, __last,
+ __gnu_cxx::__ops::__pred_iter(__pred));
+ }
+
+ template<typename _ForwardIterator, typename _BinaryPredicate>
+ _ForwardIterator
+ __adjacent_find(_ForwardIterator __first, _ForwardIterator __last,
+ _BinaryPredicate __binary_pred)
+ {
+ if (__first == __last)
+ return __last;
+ _ForwardIterator __next = __first;
+ while (++__next != __last)
+ {
+ if (__binary_pred(__first, __next))
+ return __first;
+ __first = __next;
+ }
+ return __last;
+ }
+
+ template<typename _ForwardIterator, typename _BinaryPredicate>
+ _ForwardIterator
+ __unique(_ForwardIterator __first, _ForwardIterator __last,
+ _BinaryPredicate __binary_pred)
+ {
+ // Skip the beginning, if already unique.
+ __first = std::__adjacent_find(__first, __last, __binary_pred);
+ if (__first == __last)
+ return __last;
+
+ // Do the real copy work.
+ _ForwardIterator __dest = __first;
++__first;
- for(; __first != __last; ++__first)
- if(!bool(__pred(*__first)))
- {
- *__result = _GLIBCXX_MOVE(*__first);
- ++__result;
- }
- return __result;
+ while (++__first != __last)
+ if (!__binary_pred(__dest, __first))
+ *++__dest = _GLIBCXX_MOVE(*__first);
+ return ++__dest;
}
/**
* are still present, but their value is unspecified.
*/
template<typename _ForwardIterator>
- _ForwardIterator
+ inline _ForwardIterator
unique(_ForwardIterator __first, _ForwardIterator __last)
{
// concept requirements
typename iterator_traits<_ForwardIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- // Skip the beginning, if already unique.
- __first = _GLIBCXX_STD_A::adjacent_find(__first, __last);
- if (__first == __last)
- return __last;
-
- // Do the real copy work.
- _ForwardIterator __dest = __first;
- ++__first;
- while (++__first != __last)
- if (!(*__dest == *__first))
- *++__dest = _GLIBCXX_MOVE(*__first);
- return ++__dest;
+ return std::__unique(__first, __last,
+ __gnu_cxx::__ops::__iter_equal_to_iter());
}
/**
* are still present, but their value is unspecified.
*/
template<typename _ForwardIterator, typename _BinaryPredicate>
- _ForwardIterator
+ inline _ForwardIterator
unique(_ForwardIterator __first, _ForwardIterator __last,
_BinaryPredicate __binary_pred)
{
typename iterator_traits<_ForwardIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- // Skip the beginning, if already unique.
- __first = _GLIBCXX_STD_A::adjacent_find(__first, __last, __binary_pred);
- if (__first == __last)
- return __last;
-
- // Do the real copy work.
- _ForwardIterator __dest = __first;
- ++__first;
- while (++__first != __last)
- if (!bool(__binary_pred(*__dest, *__first)))
- *++__dest = _GLIBCXX_MOVE(*__first);
- return ++__dest;
- }
-
- /**
- * This is an uglified unique_copy(_InputIterator, _InputIterator,
- * _OutputIterator)
- * overloaded for forward iterators and output iterator as result.
- */
- template<typename _ForwardIterator, typename _OutputIterator>
- _OutputIterator
- __unique_copy(_ForwardIterator __first, _ForwardIterator __last,
- _OutputIterator __result,
- forward_iterator_tag, output_iterator_tag)
- {
- // concept requirements -- taken care of in dispatching function
- _ForwardIterator __next = __first;
- *__result = *__first;
- while (++__next != __last)
- if (!(*__first == *__next))
- {
- __first = __next;
- *++__result = *__first;
- }
- return ++__result;
- }
-
- /**
- * This is an uglified unique_copy(_InputIterator, _InputIterator,
- * _OutputIterator)
- * overloaded for input iterators and output iterator as result.
- */
- template<typename _InputIterator, typename _OutputIterator>
- _OutputIterator
- __unique_copy(_InputIterator __first, _InputIterator __last,
- _OutputIterator __result,
- input_iterator_tag, output_iterator_tag)
- {
- // concept requirements -- taken care of in dispatching function
- typename iterator_traits<_InputIterator>::value_type __value = *__first;
- *__result = __value;
- while (++__first != __last)
- if (!(__value == *__first))
- {
- __value = *__first;
- *++__result = __value;
- }
- return ++__result;
- }
-
- /**
- * This is an uglified unique_copy(_InputIterator, _InputIterator,
- * _OutputIterator)
- * overloaded for input iterators and forward iterator as result.
- */
- template<typename _InputIterator, typename _ForwardIterator>
- _ForwardIterator
- __unique_copy(_InputIterator __first, _InputIterator __last,
- _ForwardIterator __result,
- input_iterator_tag, forward_iterator_tag)
- {
- // concept requirements -- taken care of in dispatching function
- *__result = *__first;
- while (++__first != __last)
- if (!(*__result == *__first))
- *++__result = *__first;
- return ++__result;
+ return std::__unique(__first, __last,
+ __gnu_cxx::__ops::__iter_comp_iter(__binary_pred));
}
/**
_ForwardIterator __next = __first;
*__result = *__first;
while (++__next != __last)
- if (!bool(__binary_pred(*__first, *__next)))
+ if (!__binary_pred(__first, __next))
{
__first = __next;
*++__result = *__first;
typename iterator_traits<_InputIterator>::value_type>)
typename iterator_traits<_InputIterator>::value_type __value = *__first;
+ __decltype(__gnu_cxx::__ops::__iter_comp_val(__binary_pred))
+ __rebound_pred
+ = __gnu_cxx::__ops::__iter_comp_val(__binary_pred);
*__result = __value;
while (++__first != __last)
- if (!bool(__binary_pred(__value, *__first)))
+ if (!__rebound_pred(__first, __value))
{
__value = *__first;
*++__result = __value;
__glibcxx_function_requires(_BinaryPredicateConcept<_BinaryPredicate,
typename iterator_traits<_ForwardIterator>::value_type,
typename iterator_traits<_InputIterator>::value_type>)
-
*__result = *__first;
while (++__first != __last)
- if (!bool(__binary_pred(*__result, *__first)))
+ if (!__binary_pred(__result, __first))
*++__result = *__first;
return ++__result;
}
* range @p [__result,__result+(__last-__first)) such that the
* order of the elements is reversed. For every @c i such that @p
* 0<=i<=(__last-__first), @p reverse_copy() performs the
- * assignment @p *(__result+(__last-__first)-i) = *(__first+i).
+ * assignment @p *(__result+(__last-__first)-1-i) = *(__first+i).
* The ranges @p [__first,__last) and @p
* [__result,__result+(__last-__first)) must not overlap.
*/
__glibcxx_requires_valid_range(__first, __middle);
__glibcxx_requires_valid_range(__middle, __last);
- typedef typename iterator_traits<_ForwardIterator>::iterator_category
- _IterType;
- std::__rotate(__first, __middle, __last, _IterType());
+ std::__rotate(__first, __middle, __last,
+ std::__iterator_category(__first));
}
/**
* for each @p n in the range @p [0,__last-__first).
*/
template<typename _ForwardIterator, typename _OutputIterator>
- _OutputIterator
+ inline _OutputIterator
rotate_copy(_ForwardIterator __first, _ForwardIterator __middle,
_ForwardIterator __last, _OutputIterator __result)
{
// partition
/// This is a helper function...
- /// Requires __len != 0 and !__pred(*__first),
- /// same as __stable_partition_adaptive.
- template<typename _ForwardIterator, typename _Predicate, typename _Distance>
- _ForwardIterator
- __inplace_stable_partition(_ForwardIterator __first,
- _Predicate __pred, _Distance __len)
- {
- if (__len == 1)
- return __first;
- _ForwardIterator __middle = __first;
- std::advance(__middle, __len / 2);
- _ForwardIterator __left_split =
- std::__inplace_stable_partition(__first, __pred, __len / 2);
- // Advance past true-predicate values to satisfy this
- // function's preconditions.
- _Distance __right_len = __len - __len / 2;
- _ForwardIterator __right_split =
- std::__find_if_not_n(__middle, __right_len, __pred);
- if (__right_len)
- __right_split = std::__inplace_stable_partition(__middle,
- __pred,
- __right_len);
- std::rotate(__left_split, __middle, __right_split);
- std::advance(__left_split, std::distance(__middle, __right_split));
- return __left_split;
- }
-
- /// This is a helper function...
- /// Requires __first != __last and !__pred(*__first)
+ /// Requires __first != __last and !__pred(__first)
/// and __len == distance(__first, __last).
///
- /// !__pred(*__first) allows us to guarantee that we don't
+ /// !__pred(__first) allows us to guarantee that we don't
/// move-assign an element onto itself.
template<typename _ForwardIterator, typename _Pointer, typename _Predicate,
typename _Distance>
_Pointer __buffer,
_Distance __buffer_size)
{
+ if (__len == 1)
+ return __first;
+
if (__len <= __buffer_size)
{
_ForwardIterator __result1 = __first;
_Pointer __result2 = __buffer;
- // The precondition guarantees that !__pred(*__first), so
+
+ // The precondition guarantees that !__pred(__first), so
// move that element to the buffer before starting the loop.
// This ensures that we only call __pred once per element.
*__result2 = _GLIBCXX_MOVE(*__first);
++__result2;
++__first;
for (; __first != __last; ++__first)
- if (__pred(*__first))
+ if (__pred(__first))
{
*__result1 = _GLIBCXX_MOVE(*__first);
++__result1;
*__result2 = _GLIBCXX_MOVE(*__first);
++__result2;
}
+
_GLIBCXX_MOVE3(__buffer, __result2, __result1);
return __result1;
}
- else
- {
- _ForwardIterator __middle = __first;
- std::advance(__middle, __len / 2);
- _ForwardIterator __left_split =
- std::__stable_partition_adaptive(__first, __middle, __pred,
- __len / 2, __buffer,
- __buffer_size);
- // Advance past true-predicate values to satisfy this
- // function's preconditions.
- _Distance __right_len = __len - __len / 2;
- _ForwardIterator __right_split =
- std::__find_if_not_n(__middle, __right_len, __pred);
- if (__right_len)
- __right_split =
- std::__stable_partition_adaptive(__right_split, __last, __pred,
- __right_len,
- __buffer, __buffer_size);
- std::rotate(__left_split, __middle, __right_split);
- std::advance(__left_split, std::distance(__middle, __right_split));
- return __left_split;
- }
+
+ _ForwardIterator __middle = __first;
+ std::advance(__middle, __len / 2);
+ _ForwardIterator __left_split =
+ std::__stable_partition_adaptive(__first, __middle, __pred,
+ __len / 2, __buffer,
+ __buffer_size);
+
+ // Advance past true-predicate values to satisfy this
+ // function's preconditions.
+ _Distance __right_len = __len - __len / 2;
+ _ForwardIterator __right_split =
+ std::__find_if_not_n(__middle, __right_len, __pred);
+
+ if (__right_len)
+ __right_split =
+ std::__stable_partition_adaptive(__right_split, __last, __pred,
+ __right_len,
+ __buffer, __buffer_size);
+
+ std::rotate(__left_split, __middle, __right_split);
+ std::advance(__left_split, std::distance(__middle, __right_split));
+ return __left_split;
+ }
+
+ template<typename _ForwardIterator, typename _Predicate>
+ _ForwardIterator
+ __stable_partition(_ForwardIterator __first, _ForwardIterator __last,
+ _Predicate __pred)
+ {
+ __first = std::__find_if_not(__first, __last, __pred);
+
+ if (__first == __last)
+ return __first;
+
+ typedef typename iterator_traits<_ForwardIterator>::value_type
+ _ValueType;
+ typedef typename iterator_traits<_ForwardIterator>::difference_type
+ _DistanceType;
+
+ _Temporary_buffer<_ForwardIterator, _ValueType> __buf(__first, __last);
+ return
+ std::__stable_partition_adaptive(__first, __last, __pred,
+ _DistanceType(__buf.requested_size()),
+ __buf.begin(),
+ _DistanceType(__buf.size()));
}
/**
* relative ordering after calling @p stable_partition().
*/
template<typename _ForwardIterator, typename _Predicate>
- _ForwardIterator
+ inline _ForwardIterator
stable_partition(_ForwardIterator __first, _ForwardIterator __last,
_Predicate __pred)
{
typename iterator_traits<_ForwardIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- __first = std::__find_if_not(__first, __last, __pred);
-
- if (__first == __last)
- return __first;
- else
- {
- typedef typename iterator_traits<_ForwardIterator>::value_type
- _ValueType;
- typedef typename iterator_traits<_ForwardIterator>::difference_type
- _DistanceType;
-
- _Temporary_buffer<_ForwardIterator, _ValueType> __buf(__first,
- __last);
- if (__buf.size() > 0)
- return
- std::__stable_partition_adaptive(__first, __last, __pred,
- _DistanceType(__buf.requested_size()),
- __buf.begin(),
- _DistanceType(__buf.size()));
- else
- return
- std::__inplace_stable_partition(__first, __pred,
- _DistanceType(__buf.requested_size()));
- }
- }
-
- /// This is a helper function for the sort routines.
- template<typename _RandomAccessIterator>
- void
- __heap_select(_RandomAccessIterator __first,
- _RandomAccessIterator __middle,
- _RandomAccessIterator __last)
- {
- std::make_heap(__first, __middle);
- for (_RandomAccessIterator __i = __middle; __i < __last; ++__i)
- if (*__i < *__first)
- std::__pop_heap(__first, __middle, __i);
+ return std::__stable_partition(__first, __last,
+ __gnu_cxx::__ops::__pred_iter(__pred));
}
/// This is a helper function for the sort routines.
_RandomAccessIterator __middle,
_RandomAccessIterator __last, _Compare __comp)
{
- std::make_heap(__first, __middle, __comp);
+ std::__make_heap(__first, __middle, __comp);
for (_RandomAccessIterator __i = __middle; __i < __last; ++__i)
- if (__comp(*__i, *__first))
+ if (__comp(__i, __first))
std::__pop_heap(__first, __middle, __i, __comp);
}
// partial_sort
- /**
+ template<typename _InputIterator, typename _RandomAccessIterator,
+ typename _Compare>
+ _RandomAccessIterator
+ __partial_sort_copy(_InputIterator __first, _InputIterator __last,
+ _RandomAccessIterator __result_first,
+ _RandomAccessIterator __result_last,
+ _Compare __comp)
+ {
+ typedef typename iterator_traits<_InputIterator>::value_type
+ _InputValueType;
+ typedef iterator_traits<_RandomAccessIterator> _RItTraits;
+ typedef typename _RItTraits::difference_type _DistanceType;
+
+ if (__result_first == __result_last)
+ return __result_last;
+ _RandomAccessIterator __result_real_last = __result_first;
+ while (__first != __last && __result_real_last != __result_last)
+ {
+ *__result_real_last = *__first;
+ ++__result_real_last;
+ ++__first;
+ }
+
+ std::__make_heap(__result_first, __result_real_last, __comp);
+ while (__first != __last)
+ {
+ if (__comp(__first, __result_first))
+ std::__adjust_heap(__result_first, _DistanceType(0),
+ _DistanceType(__result_real_last
+ - __result_first),
+ _InputValueType(*__first), __comp);
+ ++__first;
+ }
+ std::__sort_heap(__result_first, __result_real_last, __comp);
+ return __result_real_last;
+ }
+
+ /**
* @brief Copy the smallest elements of a sequence.
* @ingroup sorting_algorithms
* @param __first An iterator.
* The value returned is @p __result_first+N.
*/
template<typename _InputIterator, typename _RandomAccessIterator>
- _RandomAccessIterator
+ inline _RandomAccessIterator
partial_sort_copy(_InputIterator __first, _InputIterator __last,
_RandomAccessIterator __result_first,
_RandomAccessIterator __result_last)
__glibcxx_requires_valid_range(__first, __last);
__glibcxx_requires_valid_range(__result_first, __result_last);
- if (__result_first == __result_last)
- return __result_last;
- _RandomAccessIterator __result_real_last = __result_first;
- while(__first != __last && __result_real_last != __result_last)
- {
- *__result_real_last = *__first;
- ++__result_real_last;
- ++__first;
- }
- std::make_heap(__result_first, __result_real_last);
- while (__first != __last)
- {
- if (*__first < *__result_first)
- std::__adjust_heap(__result_first, _DistanceType(0),
- _DistanceType(__result_real_last
- - __result_first),
- _InputValueType(*__first));
- ++__first;
- }
- std::sort_heap(__result_first, __result_real_last);
- return __result_real_last;
+ return std::__partial_sort_copy(__first, __last,
+ __result_first, __result_last,
+ __gnu_cxx::__ops::__iter_less_iter());
}
/**
* @p __comp(*j,*i) is false.
* The value returned is @p __result_first+N.
*/
- template<typename _InputIterator, typename _RandomAccessIterator, typename _Compare>
- _RandomAccessIterator
+ template<typename _InputIterator, typename _RandomAccessIterator,
+ typename _Compare>
+ inline _RandomAccessIterator
partial_sort_copy(_InputIterator __first, _InputIterator __last,
_RandomAccessIterator __result_first,
_RandomAccessIterator __result_last,
__glibcxx_requires_valid_range(__first, __last);
__glibcxx_requires_valid_range(__result_first, __result_last);
- if (__result_first == __result_last)
- return __result_last;
- _RandomAccessIterator __result_real_last = __result_first;
- while(__first != __last && __result_real_last != __result_last)
- {
- *__result_real_last = *__first;
- ++__result_real_last;
- ++__first;
- }
- std::make_heap(__result_first, __result_real_last, __comp);
- while (__first != __last)
- {
- if (__comp(*__first, *__result_first))
- std::__adjust_heap(__result_first, _DistanceType(0),
- _DistanceType(__result_real_last
- - __result_first),
- _InputValueType(*__first),
- __comp);
- ++__first;
- }
- std::sort_heap(__result_first, __result_real_last, __comp);
- return __result_real_last;
- }
-
- /// This is a helper function for the sort routine.
- template<typename _RandomAccessIterator>
- void
- __unguarded_linear_insert(_RandomAccessIterator __last)
- {
- typename iterator_traits<_RandomAccessIterator>::value_type
- __val = _GLIBCXX_MOVE(*__last);
- _RandomAccessIterator __next = __last;
- --__next;
- while (__val < *__next)
- {
- *__last = _GLIBCXX_MOVE(*__next);
- __last = __next;
- --__next;
- }
- *__last = _GLIBCXX_MOVE(__val);
+ return std::__partial_sort_copy(__first, __last,
+ __result_first, __result_last,
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
}
/// This is a helper function for the sort routine.
__val = _GLIBCXX_MOVE(*__last);
_RandomAccessIterator __next = __last;
--__next;
- while (__comp(__val, *__next))
+ while (__comp(__val, __next))
{
*__last = _GLIBCXX_MOVE(*__next);
__last = __next;
*__last = _GLIBCXX_MOVE(__val);
}
- /// This is a helper function for the sort routine.
- template<typename _RandomAccessIterator>
- void
- __insertion_sort(_RandomAccessIterator __first,
- _RandomAccessIterator __last)
- {
- if (__first == __last)
- return;
-
- for (_RandomAccessIterator __i = __first + 1; __i != __last; ++__i)
- {
- if (*__i < *__first)
- {
- typename iterator_traits<_RandomAccessIterator>::value_type
- __val = _GLIBCXX_MOVE(*__i);
- _GLIBCXX_MOVE_BACKWARD3(__first, __i, __i + 1);
- *__first = _GLIBCXX_MOVE(__val);
- }
- else
- std::__unguarded_linear_insert(__i);
- }
- }
-
/// This is a helper function for the sort routine.
template<typename _RandomAccessIterator, typename _Compare>
void
for (_RandomAccessIterator __i = __first + 1; __i != __last; ++__i)
{
- if (__comp(*__i, *__first))
+ if (__comp(__i, __first))
{
typename iterator_traits<_RandomAccessIterator>::value_type
__val = _GLIBCXX_MOVE(*__i);
*__first = _GLIBCXX_MOVE(__val);
}
else
- std::__unguarded_linear_insert(__i, __comp);
+ std::__unguarded_linear_insert(__i,
+ __gnu_cxx::__ops::__val_comp_iter(__comp));
}
}
- /// This is a helper function for the sort routine.
- template<typename _RandomAccessIterator>
- inline void
- __unguarded_insertion_sort(_RandomAccessIterator __first,
- _RandomAccessIterator __last)
- {
- typedef typename iterator_traits<_RandomAccessIterator>::value_type
- _ValueType;
-
- for (_RandomAccessIterator __i = __first; __i != __last; ++__i)
- std::__unguarded_linear_insert(__i);
- }
-
/// This is a helper function for the sort routine.
template<typename _RandomAccessIterator, typename _Compare>
inline void
__unguarded_insertion_sort(_RandomAccessIterator __first,
_RandomAccessIterator __last, _Compare __comp)
{
- typedef typename iterator_traits<_RandomAccessIterator>::value_type
- _ValueType;
-
for (_RandomAccessIterator __i = __first; __i != __last; ++__i)
- std::__unguarded_linear_insert(__i, __comp);
+ std::__unguarded_linear_insert(__i,
+ __gnu_cxx::__ops::__val_comp_iter(__comp));
}
/**
*/
enum { _S_threshold = 16 };
- /// This is a helper function for the sort routine.
- template<typename _RandomAccessIterator>
- void
- __final_insertion_sort(_RandomAccessIterator __first,
- _RandomAccessIterator __last)
- {
- if (__last - __first > int(_S_threshold))
- {
- std::__insertion_sort(__first, __first + int(_S_threshold));
- std::__unguarded_insertion_sort(__first + int(_S_threshold), __last);
- }
- else
- std::__insertion_sort(__first, __last);
- }
-
/// This is a helper function for the sort routine.
template<typename _RandomAccessIterator, typename _Compare>
void
}
/// This is a helper function...
- template<typename _RandomAccessIterator, typename _Tp>
- _RandomAccessIterator
- __unguarded_partition(_RandomAccessIterator __first,
- _RandomAccessIterator __last, const _Tp& __pivot)
- {
- while (true)
- {
- while (*__first < __pivot)
- ++__first;
- --__last;
- while (__pivot < *__last)
- --__last;
- if (!(__first < __last))
- return __first;
- std::iter_swap(__first, __last);
- ++__first;
- }
- }
-
- /// This is a helper function...
- template<typename _RandomAccessIterator, typename _Tp, typename _Compare>
+ template<typename _RandomAccessIterator, typename _Compare>
_RandomAccessIterator
__unguarded_partition(_RandomAccessIterator __first,
_RandomAccessIterator __last,
- const _Tp& __pivot, _Compare __comp)
+ _RandomAccessIterator __pivot, _Compare __comp)
{
while (true)
{
- while (__comp(*__first, __pivot))
+ while (__comp(__first, __pivot))
++__first;
--__last;
- while (__comp(__pivot, *__last))
+ while (__comp(__pivot, __last))
--__last;
if (!(__first < __last))
return __first;
}
}
- /// This is a helper function...
- template<typename _RandomAccessIterator>
- inline _RandomAccessIterator
- __unguarded_partition_pivot(_RandomAccessIterator __first,
- _RandomAccessIterator __last)
- {
- _RandomAccessIterator __mid = __first + (__last - __first) / 2;
- std::__move_median_first(__first, __mid, (__last - 1));
- return std::__unguarded_partition(__first + 1, __last, *__first);
- }
-
-
/// This is a helper function...
template<typename _RandomAccessIterator, typename _Compare>
inline _RandomAccessIterator
_RandomAccessIterator __last, _Compare __comp)
{
_RandomAccessIterator __mid = __first + (__last - __first) / 2;
- std::__move_median_first(__first, __mid, (__last - 1), __comp);
- return std::__unguarded_partition(__first + 1, __last, *__first, __comp);
+ std::__move_median_to_first(__first, __first + 1, __mid, __last - 1,
+ __comp);
+ return std::__unguarded_partition(__first + 1, __last, __first, __comp);
}
- /// This is a helper function for the sort routine.
- template<typename _RandomAccessIterator, typename _Size>
- void
- __introsort_loop(_RandomAccessIterator __first,
- _RandomAccessIterator __last,
- _Size __depth_limit)
+ template<typename _RandomAccessIterator, typename _Compare>
+ inline void
+ __partial_sort(_RandomAccessIterator __first,
+ _RandomAccessIterator __middle,
+ _RandomAccessIterator __last,
+ _Compare __comp)
{
- while (__last - __first > int(_S_threshold))
- {
- if (__depth_limit == 0)
- {
- _GLIBCXX_STD_A::partial_sort(__first, __last, __last);
- return;
- }
- --__depth_limit;
- _RandomAccessIterator __cut =
- std::__unguarded_partition_pivot(__first, __last);
- std::__introsort_loop(__cut, __last, __depth_limit);
- __last = __cut;
- }
+ std::__heap_select(__first, __middle, __last, __comp);
+ std::__sort_heap(__first, __middle, __comp);
}
/// This is a helper function for the sort routine.
{
if (__depth_limit == 0)
{
- _GLIBCXX_STD_A::partial_sort(__first, __last, __last, __comp);
+ std::__partial_sort(__first, __last, __last, __comp);
return;
}
--__depth_limit;
// sort
- template<typename _RandomAccessIterator, typename _Size>
- void
- __introselect(_RandomAccessIterator __first, _RandomAccessIterator __nth,
- _RandomAccessIterator __last, _Size __depth_limit)
+ template<typename _RandomAccessIterator, typename _Compare>
+ inline void
+ __sort(_RandomAccessIterator __first, _RandomAccessIterator __last,
+ _Compare __comp)
{
- typedef typename iterator_traits<_RandomAccessIterator>::value_type
- _ValueType;
-
- while (__last - __first > 3)
+ if (__first != __last)
{
- if (__depth_limit == 0)
- {
- std::__heap_select(__first, __nth + 1, __last);
-
- // Place the nth largest element in its final position.
- std::iter_swap(__first, __nth);
- return;
- }
- --__depth_limit;
- _RandomAccessIterator __cut =
- std::__unguarded_partition_pivot(__first, __last);
- if (__cut <= __nth)
- __first = __cut;
- else
- __last = __cut;
+ std::__introsort_loop(__first, __last,
+ std::__lg(__last - __first) * 2,
+ __comp);
+ std::__final_insertion_sort(__first, __last, __comp);
}
- std::__insertion_sort(__first, __last);
}
template<typename _RandomAccessIterator, typename _Size, typename _Compare>
_RandomAccessIterator __last, _Size __depth_limit,
_Compare __comp)
{
- typedef typename iterator_traits<_RandomAccessIterator>::value_type
- _ValueType;
-
while (__last - __first > 3)
{
if (__depth_limit == 0)
* the function used for the initial sort.
*/
template<typename _ForwardIterator, typename _Tp, typename _Compare>
- _ForwardIterator
+ inline _ForwardIterator
lower_bound(_ForwardIterator __first, _ForwardIterator __last,
const _Tp& __val, _Compare __comp)
{
typedef typename iterator_traits<_ForwardIterator>::value_type
_ValueType;
- typedef typename iterator_traits<_ForwardIterator>::difference_type
- _DistanceType;
// concept requirements
__glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>)
__glibcxx_requires_partitioned_lower_pred(__first, __last,
__val, __comp);
+ return std::__lower_bound(__first, __last, __val,
+ __gnu_cxx::__ops::__iter_comp_val(__comp));
+ }
+
+ template<typename _ForwardIterator, typename _Tp, typename _Compare>
+ _ForwardIterator
+ __upper_bound(_ForwardIterator __first, _ForwardIterator __last,
+ const _Tp& __val, _Compare __comp)
+ {
+ typedef typename iterator_traits<_ForwardIterator>::difference_type
+ _DistanceType;
+
_DistanceType __len = std::distance(__first, __last);
while (__len > 0)
_DistanceType __half = __len >> 1;
_ForwardIterator __middle = __first;
std::advance(__middle, __half);
- if (__comp(*__middle, __val))
+ if (__comp(__val, __middle))
+ __len = __half;
+ else
{
__first = __middle;
++__first;
__len = __len - __half - 1;
}
- else
- __len = __half;
}
return __first;
}
* @ingroup binary_search_algorithms
*/
template<typename _ForwardIterator, typename _Tp>
- _ForwardIterator
+ inline _ForwardIterator
upper_bound(_ForwardIterator __first, _ForwardIterator __last,
const _Tp& __val)
{
typedef typename iterator_traits<_ForwardIterator>::value_type
_ValueType;
- typedef typename iterator_traits<_ForwardIterator>::difference_type
- _DistanceType;
// concept requirements
__glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>)
__glibcxx_function_requires(_LessThanOpConcept<_Tp, _ValueType>)
__glibcxx_requires_partitioned_upper(__first, __last, __val);
- _DistanceType __len = std::distance(__first, __last);
-
- while (__len > 0)
- {
- _DistanceType __half = __len >> 1;
- _ForwardIterator __middle = __first;
- std::advance(__middle, __half);
- if (__val < *__middle)
- __len = __half;
- else
- {
- __first = __middle;
- ++__first;
- __len = __len - __half - 1;
- }
- }
- return __first;
+ return std::__upper_bound(__first, __last, __val,
+ __gnu_cxx::__ops::__val_less_iter());
}
/**
* the function used for the initial sort.
*/
template<typename _ForwardIterator, typename _Tp, typename _Compare>
- _ForwardIterator
+ inline _ForwardIterator
upper_bound(_ForwardIterator __first, _ForwardIterator __last,
const _Tp& __val, _Compare __comp)
{
typedef typename iterator_traits<_ForwardIterator>::value_type
_ValueType;
- typedef typename iterator_traits<_ForwardIterator>::difference_type
- _DistanceType;
// concept requirements
__glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>)
__glibcxx_requires_partitioned_upper_pred(__first, __last,
__val, __comp);
+ return std::__upper_bound(__first, __last, __val,
+ __gnu_cxx::__ops::__val_comp_iter(__comp));
+ }
+
+ template<typename _ForwardIterator, typename _Tp,
+ typename _CompareItTp, typename _CompareTpIt>
+ pair<_ForwardIterator, _ForwardIterator>
+ __equal_range(_ForwardIterator __first, _ForwardIterator __last,
+ const _Tp& __val,
+ _CompareItTp __comp_it_val, _CompareTpIt __comp_val_it)
+ {
+ typedef typename iterator_traits<_ForwardIterator>::difference_type
+ _DistanceType;
+
_DistanceType __len = std::distance(__first, __last);
while (__len > 0)
_DistanceType __half = __len >> 1;
_ForwardIterator __middle = __first;
std::advance(__middle, __half);
- if (__comp(__val, *__middle))
- __len = __half;
- else
+ if (__comp_it_val(__middle, __val))
{
__first = __middle;
++__first;
__len = __len - __half - 1;
}
+ else if (__comp_val_it(__val, __middle))
+ __len = __half;
+ else
+ {
+ _ForwardIterator __left
+ = std::__lower_bound(__first, __middle, __val, __comp_it_val);
+ std::advance(__first, __len);
+ _ForwardIterator __right
+ = std::__upper_bound(++__middle, __first, __val, __comp_val_it);
+ return pair<_ForwardIterator, _ForwardIterator>(__left, __right);
+ }
}
- return __first;
+ return pair<_ForwardIterator, _ForwardIterator>(__first, __first);
}
/**
* but does not actually call those functions.
*/
template<typename _ForwardIterator, typename _Tp>
- pair<_ForwardIterator, _ForwardIterator>
+ inline pair<_ForwardIterator, _ForwardIterator>
equal_range(_ForwardIterator __first, _ForwardIterator __last,
const _Tp& __val)
{
typedef typename iterator_traits<_ForwardIterator>::value_type
_ValueType;
- typedef typename iterator_traits<_ForwardIterator>::difference_type
- _DistanceType;
// concept requirements
__glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>)
__glibcxx_function_requires(_LessThanOpConcept<_ValueType, _Tp>)
- __glibcxx_function_requires(_LessThanOpConcept<_Tp, _ValueType>)
+ __glibcxx_function_requires(_LessThanOpConcept<_Tp, _ValueType>)
__glibcxx_requires_partitioned_lower(__first, __last, __val);
__glibcxx_requires_partitioned_upper(__first, __last, __val);
- _DistanceType __len = std::distance(__first, __last);
-
- while (__len > 0)
- {
- _DistanceType __half = __len >> 1;
- _ForwardIterator __middle = __first;
- std::advance(__middle, __half);
- if (*__middle < __val)
- {
- __first = __middle;
- ++__first;
- __len = __len - __half - 1;
- }
- else if (__val < *__middle)
- __len = __half;
- else
- {
- _ForwardIterator __left = std::lower_bound(__first, __middle,
- __val);
- std::advance(__first, __len);
- _ForwardIterator __right = std::upper_bound(++__middle, __first,
- __val);
- return pair<_ForwardIterator, _ForwardIterator>(__left, __right);
- }
- }
- return pair<_ForwardIterator, _ForwardIterator>(__first, __first);
+ return std::__equal_range(__first, __last, __val,
+ __gnu_cxx::__ops::__iter_less_val(),
+ __gnu_cxx::__ops::__val_less_iter());
}
/**
* but does not actually call those functions.
*/
template<typename _ForwardIterator, typename _Tp, typename _Compare>
- pair<_ForwardIterator, _ForwardIterator>
+ inline pair<_ForwardIterator, _ForwardIterator>
equal_range(_ForwardIterator __first, _ForwardIterator __last,
const _Tp& __val, _Compare __comp)
{
typedef typename iterator_traits<_ForwardIterator>::value_type
_ValueType;
- typedef typename iterator_traits<_ForwardIterator>::difference_type
- _DistanceType;
// concept requirements
__glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>)
__glibcxx_requires_partitioned_upper_pred(__first, __last,
__val, __comp);
- _DistanceType __len = std::distance(__first, __last);
-
- while (__len > 0)
- {
- _DistanceType __half = __len >> 1;
- _ForwardIterator __middle = __first;
- std::advance(__middle, __half);
- if (__comp(*__middle, __val))
- {
- __first = __middle;
- ++__first;
- __len = __len - __half - 1;
- }
- else if (__comp(__val, *__middle))
- __len = __half;
- else
- {
- _ForwardIterator __left = std::lower_bound(__first, __middle,
- __val, __comp);
- std::advance(__first, __len);
- _ForwardIterator __right = std::upper_bound(++__middle, __first,
- __val, __comp);
- return pair<_ForwardIterator, _ForwardIterator>(__left, __right);
- }
- }
- return pair<_ForwardIterator, _ForwardIterator>(__first, __first);
+ return std::__equal_range(__first, __last, __val,
+ __gnu_cxx::__ops::__iter_comp_val(__comp),
+ __gnu_cxx::__ops::__val_comp_iter(__comp));
}
/**
__glibcxx_requires_partitioned_lower(__first, __last, __val);
__glibcxx_requires_partitioned_upper(__first, __last, __val);
- _ForwardIterator __i = std::lower_bound(__first, __last, __val);
+ _ForwardIterator __i
+ = std::__lower_bound(__first, __last, __val,
+ __gnu_cxx::__ops::__iter_less_val());
return __i != __last && !(__val < *__i);
}
__glibcxx_requires_partitioned_upper_pred(__first, __last,
__val, __comp);
- _ForwardIterator __i = std::lower_bound(__first, __last, __val, __comp);
+ _ForwardIterator __i
+ = std::__lower_bound(__first, __last, __val,
+ __gnu_cxx::__ops::__iter_comp_val(__comp));
return __i != __last && !bool(__comp(__val, *__i));
}
// merge
- /// This is a helper function for the __merge_adaptive routines.
- template<typename _InputIterator1, typename _InputIterator2,
- typename _OutputIterator>
- void
- __move_merge_adaptive(_InputIterator1 __first1, _InputIterator1 __last1,
- _InputIterator2 __first2, _InputIterator2 __last2,
- _OutputIterator __result)
- {
- while (__first1 != __last1 && __first2 != __last2)
- {
- if (*__first2 < *__first1)
- {
- *__result = _GLIBCXX_MOVE(*__first2);
- ++__first2;
- }
- else
- {
- *__result = _GLIBCXX_MOVE(*__first1);
- ++__first1;
- }
- ++__result;
- }
- if (__first1 != __last1)
- _GLIBCXX_MOVE3(__first1, __last1, __result);
- }
-
/// This is a helper function for the __merge_adaptive routines.
template<typename _InputIterator1, typename _InputIterator2,
typename _OutputIterator, typename _Compare>
{
while (__first1 != __last1 && __first2 != __last2)
{
- if (__comp(*__first2, *__first1))
+ if (__comp(__first2, __first1))
{
*__result = _GLIBCXX_MOVE(*__first2);
++__first2;
_GLIBCXX_MOVE3(__first1, __last1, __result);
}
- /// This is a helper function for the __merge_adaptive routines.
- template<typename _BidirectionalIterator1, typename _BidirectionalIterator2,
- typename _BidirectionalIterator3>
- void
- __move_merge_adaptive_backward(_BidirectionalIterator1 __first1,
- _BidirectionalIterator1 __last1,
- _BidirectionalIterator2 __first2,
- _BidirectionalIterator2 __last2,
- _BidirectionalIterator3 __result)
- {
- if (__first1 == __last1)
- {
- _GLIBCXX_MOVE_BACKWARD3(__first2, __last2, __result);
- return;
- }
- else if (__first2 == __last2)
- return;
-
- --__last1;
- --__last2;
- while (true)
- {
- if (*__last2 < *__last1)
- {
- *--__result = _GLIBCXX_MOVE(*__last1);
- if (__first1 == __last1)
- {
- _GLIBCXX_MOVE_BACKWARD3(__first2, ++__last2, __result);
- return;
- }
- --__last1;
- }
- else
- {
- *--__result = _GLIBCXX_MOVE(*__last2);
- if (__first2 == __last2)
- return;
- --__last2;
- }
- }
- }
-
/// This is a helper function for the __merge_adaptive routines.
template<typename _BidirectionalIterator1, typename _BidirectionalIterator2,
typename _BidirectionalIterator3, typename _Compare>
--__last2;
while (true)
{
- if (__comp(*__last2, *__last1))
+ if (__comp(__last2, __last1))
{
*--__result = _GLIBCXX_MOVE(*__last1);
if (__first1 == __last1)
}
}
- /// This is a helper function for the merge routines.
- template<typename _BidirectionalIterator, typename _Distance,
- typename _Pointer>
- void
- __merge_adaptive(_BidirectionalIterator __first,
- _BidirectionalIterator __middle,
- _BidirectionalIterator __last,
- _Distance __len1, _Distance __len2,
- _Pointer __buffer, _Distance __buffer_size)
- {
- if (__len1 <= __len2 && __len1 <= __buffer_size)
- {
- _Pointer __buffer_end = _GLIBCXX_MOVE3(__first, __middle, __buffer);
- std::__move_merge_adaptive(__buffer, __buffer_end, __middle, __last,
- __first);
- }
- else if (__len2 <= __buffer_size)
- {
- _Pointer __buffer_end = _GLIBCXX_MOVE3(__middle, __last, __buffer);
- std::__move_merge_adaptive_backward(__first, __middle, __buffer,
- __buffer_end, __last);
- }
- else
- {
- _BidirectionalIterator __first_cut = __first;
- _BidirectionalIterator __second_cut = __middle;
- _Distance __len11 = 0;
- _Distance __len22 = 0;
- if (__len1 > __len2)
- {
- __len11 = __len1 / 2;
- std::advance(__first_cut, __len11);
- __second_cut = std::lower_bound(__middle, __last,
- *__first_cut);
- __len22 = std::distance(__middle, __second_cut);
- }
- else
- {
- __len22 = __len2 / 2;
- std::advance(__second_cut, __len22);
- __first_cut = std::upper_bound(__first, __middle,
- *__second_cut);
- __len11 = std::distance(__first, __first_cut);
- }
- _BidirectionalIterator __new_middle =
- std::__rotate_adaptive(__first_cut, __middle, __second_cut,
- __len1 - __len11, __len22, __buffer,
- __buffer_size);
- std::__merge_adaptive(__first, __first_cut, __new_middle, __len11,
- __len22, __buffer, __buffer_size);
- std::__merge_adaptive(__new_middle, __second_cut, __last,
- __len1 - __len11,
- __len2 - __len22, __buffer, __buffer_size);
- }
- }
-
/// This is a helper function for the merge routines.
template<typename _BidirectionalIterator, typename _Distance,
typename _Pointer, typename _Compare>
{
__len11 = __len1 / 2;
std::advance(__first_cut, __len11);
- __second_cut = std::lower_bound(__middle, __last, *__first_cut,
- __comp);
+ __second_cut
+ = std::__lower_bound(__middle, __last, *__first_cut,
+ __gnu_cxx::__ops::__iter_comp_val(__comp));
__len22 = std::distance(__middle, __second_cut);
}
else
{
__len22 = __len2 / 2;
std::advance(__second_cut, __len22);
- __first_cut = std::upper_bound(__first, __middle, *__second_cut,
- __comp);
+ __first_cut
+ = std::__upper_bound(__first, __middle, *__second_cut,
+ __gnu_cxx::__ops::__val_comp_iter(__comp));
__len11 = std::distance(__first, __first_cut);
}
- _BidirectionalIterator __new_middle =
- std::__rotate_adaptive(__first_cut, __middle, __second_cut,
- __len1 - __len11, __len22, __buffer,
- __buffer_size);
+
+ _BidirectionalIterator __new_middle
+ = std::__rotate_adaptive(__first_cut, __middle, __second_cut,
+ __len1 - __len11, __len22, __buffer,
+ __buffer_size);
std::__merge_adaptive(__first, __first_cut, __new_middle, __len11,
__len22, __buffer, __buffer_size, __comp);
std::__merge_adaptive(__new_middle, __second_cut, __last,
}
}
- /// This is a helper function for the merge routines.
- template<typename _BidirectionalIterator, typename _Distance>
- void
- __merge_without_buffer(_BidirectionalIterator __first,
- _BidirectionalIterator __middle,
- _BidirectionalIterator __last,
- _Distance __len1, _Distance __len2)
- {
- if (__len1 == 0 || __len2 == 0)
- return;
- if (__len1 + __len2 == 2)
- {
- if (*__middle < *__first)
- std::iter_swap(__first, __middle);
- return;
- }
- _BidirectionalIterator __first_cut = __first;
- _BidirectionalIterator __second_cut = __middle;
- _Distance __len11 = 0;
- _Distance __len22 = 0;
- if (__len1 > __len2)
- {
- __len11 = __len1 / 2;
- std::advance(__first_cut, __len11);
- __second_cut = std::lower_bound(__middle, __last, *__first_cut);
- __len22 = std::distance(__middle, __second_cut);
- }
- else
- {
- __len22 = __len2 / 2;
- std::advance(__second_cut, __len22);
- __first_cut = std::upper_bound(__first, __middle, *__second_cut);
- __len11 = std::distance(__first, __first_cut);
- }
- std::rotate(__first_cut, __middle, __second_cut);
- _BidirectionalIterator __new_middle = __first_cut;
- std::advance(__new_middle, std::distance(__middle, __second_cut));
- std::__merge_without_buffer(__first, __first_cut, __new_middle,
- __len11, __len22);
- std::__merge_without_buffer(__new_middle, __second_cut, __last,
- __len1 - __len11, __len2 - __len22);
- }
-
/// This is a helper function for the merge routines.
template<typename _BidirectionalIterator, typename _Distance,
typename _Compare>
{
if (__len1 == 0 || __len2 == 0)
return;
+
if (__len1 + __len2 == 2)
{
- if (__comp(*__middle, *__first))
+ if (__comp(__middle, __first))
std::iter_swap(__first, __middle);
return;
}
+
_BidirectionalIterator __first_cut = __first;
_BidirectionalIterator __second_cut = __middle;
_Distance __len11 = 0;
{
__len11 = __len1 / 2;
std::advance(__first_cut, __len11);
- __second_cut = std::lower_bound(__middle, __last, *__first_cut,
- __comp);
+ __second_cut
+ = std::__lower_bound(__middle, __last, *__first_cut,
+ __gnu_cxx::__ops::__iter_comp_val(__comp));
__len22 = std::distance(__middle, __second_cut);
}
else
{
__len22 = __len2 / 2;
std::advance(__second_cut, __len22);
- __first_cut = std::upper_bound(__first, __middle, *__second_cut,
- __comp);
+ __first_cut
+ = std::__upper_bound(__first, __middle, *__second_cut,
+ __gnu_cxx::__ops::__val_comp_iter(__comp));
__len11 = std::distance(__first, __first_cut);
}
+
std::rotate(__first_cut, __middle, __second_cut);
_BidirectionalIterator __new_middle = __first_cut;
std::advance(__new_middle, std::distance(__middle, __second_cut));
__len1 - __len11, __len2 - __len22, __comp);
}
+ template<typename _BidirectionalIterator, typename _Compare>
+ void
+ __inplace_merge(_BidirectionalIterator __first,
+ _BidirectionalIterator __middle,
+ _BidirectionalIterator __last,
+ _Compare __comp)
+ {
+ typedef typename iterator_traits<_BidirectionalIterator>::value_type
+ _ValueType;
+ typedef typename iterator_traits<_BidirectionalIterator>::difference_type
+ _DistanceType;
+
+ if (__first == __middle || __middle == __last)
+ return;
+
+ const _DistanceType __len1 = std::distance(__first, __middle);
+ const _DistanceType __len2 = std::distance(__middle, __last);
+
+ typedef _Temporary_buffer<_BidirectionalIterator, _ValueType> _TmpBuf;
+ _TmpBuf __buf(__first, __last);
+
+ if (__buf.begin() == 0)
+ std::__merge_without_buffer
+ (__first, __middle, __last, __len1, __len2, __comp);
+ else
+ std::__merge_adaptive
+ (__first, __middle, __last, __len1, __len2, __buf.begin(),
+ _DistanceType(__buf.size()), __comp);
+ }
+
/**
* @brief Merges two sorted ranges in place.
* @ingroup sorting_algorithms
* distance(__first,__last).
*/
template<typename _BidirectionalIterator>
- void
+ inline void
inplace_merge(_BidirectionalIterator __first,
_BidirectionalIterator __middle,
_BidirectionalIterator __last)
{
- typedef typename iterator_traits<_BidirectionalIterator>::value_type
- _ValueType;
- typedef typename iterator_traits<_BidirectionalIterator>::difference_type
- _DistanceType;
-
// concept requirements
__glibcxx_function_requires(_Mutable_BidirectionalIteratorConcept<
_BidirectionalIterator>)
- __glibcxx_function_requires(_LessThanComparableConcept<_ValueType>)
+ __glibcxx_function_requires(_LessThanComparableConcept<
+ typename iterator_traits<_BidirectionalIterator>::value_type>)
__glibcxx_requires_sorted(__first, __middle);
__glibcxx_requires_sorted(__middle, __last);
- if (__first == __middle || __middle == __last)
- return;
-
- _DistanceType __len1 = std::distance(__first, __middle);
- _DistanceType __len2 = std::distance(__middle, __last);
-
- _Temporary_buffer<_BidirectionalIterator, _ValueType> __buf(__first,
- __last);
- if (__buf.begin() == 0)
- std::__merge_without_buffer(__first, __middle, __last, __len1, __len2);
- else
- std::__merge_adaptive(__first, __middle, __last, __len1, __len2,
- __buf.begin(), _DistanceType(__buf.size()));
+ std::__inplace_merge(__first, __middle, __last,
+ __gnu_cxx::__ops::__iter_less_iter());
}
/**
* the function used for the initial sort.
*/
template<typename _BidirectionalIterator, typename _Compare>
- void
+ inline void
inplace_merge(_BidirectionalIterator __first,
_BidirectionalIterator __middle,
_BidirectionalIterator __last,
_Compare __comp)
{
- typedef typename iterator_traits<_BidirectionalIterator>::value_type
- _ValueType;
- typedef typename iterator_traits<_BidirectionalIterator>::difference_type
- _DistanceType;
-
// concept requirements
__glibcxx_function_requires(_Mutable_BidirectionalIteratorConcept<
_BidirectionalIterator>)
__glibcxx_function_requires(_BinaryPredicateConcept<_Compare,
- _ValueType, _ValueType>)
+ typename iterator_traits<_BidirectionalIterator>::value_type,
+ typename iterator_traits<_BidirectionalIterator>::value_type>)
__glibcxx_requires_sorted_pred(__first, __middle, __comp);
__glibcxx_requires_sorted_pred(__middle, __last, __comp);
- if (__first == __middle || __middle == __last)
- return;
-
- const _DistanceType __len1 = std::distance(__first, __middle);
- const _DistanceType __len2 = std::distance(__middle, __last);
-
- _Temporary_buffer<_BidirectionalIterator, _ValueType> __buf(__first,
- __last);
- if (__buf.begin() == 0)
- std::__merge_without_buffer(__first, __middle, __last, __len1,
- __len2, __comp);
- else
- std::__merge_adaptive(__first, __middle, __last, __len1, __len2,
- __buf.begin(), _DistanceType(__buf.size()),
- __comp);
+ std::__inplace_merge(__first, __middle, __last,
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
}
/// This is a helper function for the __merge_sort_loop routines.
- template<typename _InputIterator1, typename _InputIterator2,
- typename _OutputIterator>
+ template<typename _InputIterator, typename _OutputIterator,
+ typename _Compare>
_OutputIterator
- __move_merge(_InputIterator1 __first1, _InputIterator1 __last1,
- _InputIterator2 __first2, _InputIterator2 __last2,
- _OutputIterator __result)
+ __move_merge(_InputIterator __first1, _InputIterator __last1,
+ _InputIterator __first2, _InputIterator __last2,
+ _OutputIterator __result, _Compare __comp)
{
while (__first1 != __last1 && __first2 != __last2)
{
- if (*__first2 < *__first1)
+ if (__comp(__first2, __first1))
{
*__result = _GLIBCXX_MOVE(*__first2);
++__first2;
__result));
}
- /// This is a helper function for the __merge_sort_loop routines.
- template<typename _InputIterator1, typename _InputIterator2,
- typename _OutputIterator, typename _Compare>
- _OutputIterator
- __move_merge(_InputIterator1 __first1, _InputIterator1 __last1,
- _InputIterator2 __first2, _InputIterator2 __last2,
- _OutputIterator __result, _Compare __comp)
- {
- while (__first1 != __last1 && __first2 != __last2)
- {
- if (__comp(*__first2, *__first1))
- {
- *__result = _GLIBCXX_MOVE(*__first2);
- ++__first2;
- }
- else
- {
- *__result = _GLIBCXX_MOVE(*__first1);
- ++__first1;
- }
- ++__result;
- }
- return _GLIBCXX_MOVE3(__first2, __last2,
- _GLIBCXX_MOVE3(__first1, __last1,
- __result));
- }
-
- template<typename _RandomAccessIterator1, typename _RandomAccessIterator2,
- typename _Distance>
- void
- __merge_sort_loop(_RandomAccessIterator1 __first,
- _RandomAccessIterator1 __last,
- _RandomAccessIterator2 __result,
- _Distance __step_size)
- {
- const _Distance __two_step = 2 * __step_size;
-
- while (__last - __first >= __two_step)
- {
- __result = std::__move_merge(__first, __first + __step_size,
- __first + __step_size,
- __first + __two_step, __result);
- __first += __two_step;
- }
-
- __step_size = std::min(_Distance(__last - __first), __step_size);
- std::__move_merge(__first, __first + __step_size,
- __first + __step_size, __last, __result);
- }
-
template<typename _RandomAccessIterator1, typename _RandomAccessIterator2,
typename _Distance, typename _Compare>
void
}
__step_size = std::min(_Distance(__last - __first), __step_size);
- std::__move_merge(__first,__first + __step_size,
+ std::__move_merge(__first, __first + __step_size,
__first + __step_size, __last, __result, __comp);
}
- template<typename _RandomAccessIterator, typename _Distance>
- void
- __chunk_insertion_sort(_RandomAccessIterator __first,
- _RandomAccessIterator __last,
- _Distance __chunk_size)
- {
- while (__last - __first >= __chunk_size)
- {
- std::__insertion_sort(__first, __first + __chunk_size);
- __first += __chunk_size;
- }
- std::__insertion_sort(__first, __last);
- }
-
template<typename _RandomAccessIterator, typename _Distance,
typename _Compare>
void
enum { _S_chunk_size = 7 };
- template<typename _RandomAccessIterator, typename _Pointer>
- void
- __merge_sort_with_buffer(_RandomAccessIterator __first,
- _RandomAccessIterator __last,
- _Pointer __buffer)
- {
- typedef typename iterator_traits<_RandomAccessIterator>::difference_type
- _Distance;
-
- const _Distance __len = __last - __first;
- const _Pointer __buffer_last = __buffer + __len;
-
- _Distance __step_size = _S_chunk_size;
- std::__chunk_insertion_sort(__first, __last, __step_size);
-
- while (__step_size < __len)
- {
- std::__merge_sort_loop(__first, __last, __buffer, __step_size);
- __step_size *= 2;
- std::__merge_sort_loop(__buffer, __buffer_last, __first, __step_size);
- __step_size *= 2;
- }
- }
-
template<typename _RandomAccessIterator, typename _Pointer, typename _Compare>
void
__merge_sort_with_buffer(_RandomAccessIterator __first,
}
}
- template<typename _RandomAccessIterator, typename _Pointer,
- typename _Distance>
- void
- __stable_sort_adaptive(_RandomAccessIterator __first,
- _RandomAccessIterator __last,
- _Pointer __buffer, _Distance __buffer_size)
- {
- const _Distance __len = (__last - __first + 1) / 2;
- const _RandomAccessIterator __middle = __first + __len;
- if (__len > __buffer_size)
- {
- std::__stable_sort_adaptive(__first, __middle,
- __buffer, __buffer_size);
- std::__stable_sort_adaptive(__middle, __last,
- __buffer, __buffer_size);
- }
- else
- {
- std::__merge_sort_with_buffer(__first, __middle, __buffer);
- std::__merge_sort_with_buffer(__middle, __last, __buffer);
- }
- std::__merge_adaptive(__first, __middle, __last,
- _Distance(__middle - __first),
- _Distance(__last - __middle),
- __buffer, __buffer_size);
- }
-
template<typename _RandomAccessIterator, typename _Pointer,
typename _Distance, typename _Compare>
void
__comp);
}
- /// This is a helper function for the stable sorting routines.
- template<typename _RandomAccessIterator>
- void
- __inplace_stable_sort(_RandomAccessIterator __first,
- _RandomAccessIterator __last)
- {
- if (__last - __first < 15)
- {
- std::__insertion_sort(__first, __last);
- return;
- }
- _RandomAccessIterator __middle = __first + (__last - __first) / 2;
- std::__inplace_stable_sort(__first, __middle);
- std::__inplace_stable_sort(__middle, __last);
- std::__merge_without_buffer(__first, __middle, __last,
- __middle - __first,
- __last - __middle);
- }
-
/// This is a helper function for the stable sorting routines.
template<typename _RandomAccessIterator, typename _Compare>
void
// that their input ranges are sorted and the postcondition that their output
// ranges are sorted.
+ template<typename _InputIterator1, typename _InputIterator2,
+ typename _Compare>
+ bool
+ __includes(_InputIterator1 __first1, _InputIterator1 __last1,
+ _InputIterator2 __first2, _InputIterator2 __last2,
+ _Compare __comp)
+ {
+ while (__first1 != __last1 && __first2 != __last2)
+ if (__comp(__first2, __first1))
+ return false;
+ else if (__comp(__first1, __first2))
+ ++__first1;
+ else
+ ++__first1, ++__first2;
+
+ return __first2 == __last2;
+ }
+
/**
* @brief Determines whether all elements of a sequence exists in a range.
* @param __first1 Start of search range.
* returned.
*/
template<typename _InputIterator1, typename _InputIterator2>
- bool
+ inline bool
includes(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _InputIterator2 __last2)
{
- typedef typename iterator_traits<_InputIterator1>::value_type
- _ValueType1;
- typedef typename iterator_traits<_InputIterator2>::value_type
- _ValueType2;
-
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>)
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>)
- __glibcxx_function_requires(_LessThanOpConcept<_ValueType1, _ValueType2>)
- __glibcxx_function_requires(_LessThanOpConcept<_ValueType2, _ValueType1>)
+ __glibcxx_function_requires(_LessThanOpConcept<
+ typename iterator_traits<_InputIterator1>::value_type,
+ typename iterator_traits<_InputIterator2>::value_type>)
+ __glibcxx_function_requires(_LessThanOpConcept<
+ typename iterator_traits<_InputIterator2>::value_type,
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_requires_sorted_set(__first1, __last1, __first2);
__glibcxx_requires_sorted_set(__first2, __last2, __first1);
- while (__first1 != __last1 && __first2 != __last2)
- if (*__first2 < *__first1)
- return false;
- else if(*__first1 < *__first2)
- ++__first1;
- else
- ++__first1, ++__first2;
-
- return __first2 == __last2;
+ return std::__includes(__first1, __last1, __first2, __last2,
+ __gnu_cxx::__ops::__iter_less_iter());
}
/**
*/
template<typename _InputIterator1, typename _InputIterator2,
typename _Compare>
- bool
+ inline bool
includes(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _InputIterator2 __last2,
_Compare __comp)
{
- typedef typename iterator_traits<_InputIterator1>::value_type
- _ValueType1;
- typedef typename iterator_traits<_InputIterator2>::value_type
- _ValueType2;
-
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>)
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>)
__glibcxx_function_requires(_BinaryPredicateConcept<_Compare,
- _ValueType1, _ValueType2>)
+ typename iterator_traits<_InputIterator1>::value_type,
+ typename iterator_traits<_InputIterator2>::value_type>)
__glibcxx_function_requires(_BinaryPredicateConcept<_Compare,
- _ValueType2, _ValueType1>)
+ typename iterator_traits<_InputIterator2>::value_type,
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_requires_sorted_set_pred(__first1, __last1, __first2, __comp);
__glibcxx_requires_sorted_set_pred(__first2, __last2, __first1, __comp);
- while (__first1 != __last1 && __first2 != __last2)
- if (__comp(*__first2, *__first1))
- return false;
- else if(__comp(*__first1, *__first2))
- ++__first1;
- else
- ++__first1, ++__first2;
-
- return __first2 == __last2;
+ return std::__includes(__first1, __last1, __first2, __last2,
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
}
// nth_element
// min_element
// max_element
- /**
- * @brief Permute range into the next @e dictionary ordering.
- * @ingroup sorting_algorithms
- * @param __first Start of range.
- * @param __last End of range.
- * @return False if wrapped to first permutation, true otherwise.
- *
- * Treats all permutations of the range as a set of @e dictionary sorted
- * sequences. Permutes the current sequence into the next one of this set.
- * Returns true if there are more sequences to generate. If the sequence
- * is the largest of the set, the smallest is generated and false returned.
- */
- template<typename _BidirectionalIterator>
+ template<typename _BidirectionalIterator, typename _Compare>
bool
- next_permutation(_BidirectionalIterator __first,
- _BidirectionalIterator __last)
+ __next_permutation(_BidirectionalIterator __first,
+ _BidirectionalIterator __last, _Compare __comp)
{
- // concept requirements
- __glibcxx_function_requires(_BidirectionalIteratorConcept<
- _BidirectionalIterator>)
- __glibcxx_function_requires(_LessThanComparableConcept<
- typename iterator_traits<_BidirectionalIterator>::value_type>)
- __glibcxx_requires_valid_range(__first, __last);
-
if (__first == __last)
return false;
_BidirectionalIterator __i = __first;
{
_BidirectionalIterator __ii = __i;
--__i;
- if (*__i < *__ii)
+ if (__comp(__i, __ii))
{
_BidirectionalIterator __j = __last;
- while (!(*__i < *--__j))
+ while (!__comp(__i, --__j))
{}
std::iter_swap(__i, __j);
- std::reverse(__ii, __last);
+ std::__reverse(__ii, __last,
+ std::__iterator_category(__first));
return true;
}
if (__i == __first)
{
- std::reverse(__first, __last);
+ std::__reverse(__first, __last,
+ std::__iterator_category(__first));
return false;
}
}
}
+ /**
+ * @brief Permute range into the next @e dictionary ordering.
+ * @ingroup sorting_algorithms
+ * @param __first Start of range.
+ * @param __last End of range.
+ * @return False if wrapped to first permutation, true otherwise.
+ *
+ * Treats all permutations of the range as a set of @e dictionary sorted
+ * sequences. Permutes the current sequence into the next one of this set.
+ * Returns true if there are more sequences to generate. If the sequence
+ * is the largest of the set, the smallest is generated and false returned.
+ */
+ template<typename _BidirectionalIterator>
+ inline bool
+ next_permutation(_BidirectionalIterator __first,
+ _BidirectionalIterator __last)
+ {
+ // concept requirements
+ __glibcxx_function_requires(_BidirectionalIteratorConcept<
+ _BidirectionalIterator>)
+ __glibcxx_function_requires(_LessThanComparableConcept<
+ typename iterator_traits<_BidirectionalIterator>::value_type>)
+ __glibcxx_requires_valid_range(__first, __last);
+
+ return std::__next_permutation
+ (__first, __last, __gnu_cxx::__ops::__iter_less_iter());
+ }
+
/**
* @brief Permute range into the next @e dictionary ordering using
* comparison functor.
* smallest is generated and false returned.
*/
template<typename _BidirectionalIterator, typename _Compare>
- bool
+ inline bool
next_permutation(_BidirectionalIterator __first,
_BidirectionalIterator __last, _Compare __comp)
{
typename iterator_traits<_BidirectionalIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
+ return std::__next_permutation
+ (__first, __last, __gnu_cxx::__ops::__iter_comp_iter(__comp));
+ }
+
+ template<typename _BidirectionalIterator, typename _Compare>
+ bool
+ __prev_permutation(_BidirectionalIterator __first,
+ _BidirectionalIterator __last, _Compare __comp)
+ {
if (__first == __last)
return false;
_BidirectionalIterator __i = __first;
{
_BidirectionalIterator __ii = __i;
--__i;
- if (__comp(*__i, *__ii))
+ if (__comp(__ii, __i))
{
_BidirectionalIterator __j = __last;
- while (!bool(__comp(*__i, *--__j)))
+ while (!__comp(--__j, __i))
{}
std::iter_swap(__i, __j);
- std::reverse(__ii, __last);
+ std::__reverse(__ii, __last,
+ std::__iterator_category(__first));
return true;
}
if (__i == __first)
{
- std::reverse(__first, __last);
+ std::__reverse(__first, __last,
+ std::__iterator_category(__first));
return false;
}
}
* returned.
*/
template<typename _BidirectionalIterator>
- bool
+ inline bool
prev_permutation(_BidirectionalIterator __first,
_BidirectionalIterator __last)
{
typename iterator_traits<_BidirectionalIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- if (__first == __last)
- return false;
- _BidirectionalIterator __i = __first;
- ++__i;
- if (__i == __last)
- return false;
- __i = __last;
- --__i;
-
- for(;;)
- {
- _BidirectionalIterator __ii = __i;
- --__i;
- if (*__ii < *__i)
- {
- _BidirectionalIterator __j = __last;
- while (!(*--__j < *__i))
- {}
- std::iter_swap(__i, __j);
- std::reverse(__ii, __last);
- return true;
- }
- if (__i == __first)
- {
- std::reverse(__first, __last);
- return false;
- }
- }
+ return std::__prev_permutation(__first, __last,
+ __gnu_cxx::__ops::__iter_less_iter());
}
/**
* the largest is generated and false returned.
*/
template<typename _BidirectionalIterator, typename _Compare>
- bool
+ inline bool
prev_permutation(_BidirectionalIterator __first,
_BidirectionalIterator __last, _Compare __comp)
{
typename iterator_traits<_BidirectionalIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- if (__first == __last)
- return false;
- _BidirectionalIterator __i = __first;
- ++__i;
- if (__i == __last)
- return false;
- __i = __last;
- --__i;
-
- for(;;)
- {
- _BidirectionalIterator __ii = __i;
- --__i;
- if (__comp(*__ii, *__i))
- {
- _BidirectionalIterator __j = __last;
- while (!bool(__comp(*--__j, *__i)))
- {}
- std::iter_swap(__i, __j);
- std::reverse(__ii, __last);
- return true;
- }
- if (__i == __first)
- {
- std::reverse(__first, __last);
- return false;
- }
- }
+ return std::__prev_permutation(__first, __last,
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
}
// replace
// replace_if
+ template<typename _InputIterator, typename _OutputIterator,
+ typename _Predicate, typename _Tp>
+ _OutputIterator
+ __replace_copy_if(_InputIterator __first, _InputIterator __last,
+ _OutputIterator __result,
+ _Predicate __pred, const _Tp& __new_value)
+ {
+ for (; __first != __last; ++__first, ++__result)
+ if (__pred(__first))
+ *__result = __new_value;
+ else
+ *__result = *__first;
+ return __result;
+ }
+
/**
* @brief Copy a sequence, replacing each element of one value with another
* value.
* equal to @p __old_value with @p __new_value.
*/
template<typename _InputIterator, typename _OutputIterator, typename _Tp>
- _OutputIterator
+ inline _OutputIterator
replace_copy(_InputIterator __first, _InputIterator __last,
_OutputIterator __result,
const _Tp& __old_value, const _Tp& __new_value)
typename iterator_traits<_InputIterator>::value_type, _Tp>)
__glibcxx_requires_valid_range(__first, __last);
- for (; __first != __last; ++__first, ++__result)
- if (*__first == __old_value)
- *__result = __new_value;
- else
- *__result = *__first;
- return __result;
+ return std::__replace_copy_if(__first, __last, __result,
+ __gnu_cxx::__ops::__iter_equals_val(__old_value),
+ __new_value);
}
/**
*/
template<typename _InputIterator, typename _OutputIterator,
typename _Predicate, typename _Tp>
- _OutputIterator
+ inline _OutputIterator
replace_copy_if(_InputIterator __first, _InputIterator __last,
_OutputIterator __result,
_Predicate __pred, const _Tp& __new_value)
typename iterator_traits<_InputIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- for (; __first != __last; ++__first, ++__result)
- if (__pred(*__first))
- *__result = __new_value;
- else
- *__result = *__first;
- return __result;
+ return std::__replace_copy_if(__first, __last, __result,
+ __gnu_cxx::__ops::__pred_iter(__pred),
+ __new_value);
+ }
+
+ template<typename _InputIterator, typename _Predicate>
+ typename iterator_traits<_InputIterator>::difference_type
+ __count_if(_InputIterator __first, _InputIterator __last, _Predicate __pred)
+ {
+ typename iterator_traits<_InputIterator>::difference_type __n = 0;
+ for (; __first != __last; ++__first)
+ if (__pred(__first))
+ ++__n;
+ return __n;
}
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
+#if __cplusplus >= 201103L
/**
* @brief Determines whether the elements of a sequence are sorted.
* @ingroup sorting_algorithms
_Compare __comp)
{ return std::is_sorted_until(__first, __last, __comp) == __last; }
+ template<typename _ForwardIterator, typename _Compare>
+ _ForwardIterator
+ __is_sorted_until(_ForwardIterator __first, _ForwardIterator __last,
+ _Compare __comp)
+ {
+ if (__first == __last)
+ return __last;
+
+ _ForwardIterator __next = __first;
+ for (++__next; __next != __last; __first = __next, ++__next)
+ if (__comp(__next, __first))
+ return __next;
+ return __next;
+ }
+
/**
* @brief Determines the end of a sorted sequence.
* @ingroup sorting_algorithms
* for which the range [__first, i) is sorted.
*/
template<typename _ForwardIterator>
- _ForwardIterator
+ inline _ForwardIterator
is_sorted_until(_ForwardIterator __first, _ForwardIterator __last)
{
// concept requirements
typename iterator_traits<_ForwardIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- if (__first == __last)
- return __last;
-
- _ForwardIterator __next = __first;
- for (++__next; __next != __last; __first = __next, ++__next)
- if (*__next < *__first)
- return __next;
- return __next;
+ return std::__is_sorted_until(__first, __last,
+ __gnu_cxx::__ops::__iter_less_iter());
}
/**
* for which the range [__first, i) is sorted.
*/
template<typename _ForwardIterator, typename _Compare>
- _ForwardIterator
+ inline _ForwardIterator
is_sorted_until(_ForwardIterator __first, _ForwardIterator __last,
_Compare __comp)
{
typename iterator_traits<_ForwardIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- if (__first == __last)
- return __last;
-
- _ForwardIterator __next = __first;
- for (++__next; __next != __last; __first = __next, ++__next)
- if (__comp(*__next, *__first))
- return __next;
- return __next;
+ return std::__is_sorted_until(__first, __last,
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
}
/**
: pair<const _Tp&, const _Tp&>(__a, __b);
}
- /**
- * @brief Return a pair of iterators pointing to the minimum and maximum
- * elements in a range.
- * @ingroup sorting_algorithms
- * @param __first Start of range.
- * @param __last End of range.
- * @return make_pair(m, M), where m is the first iterator i in
- * [__first, __last) such that no other element in the range is
- * smaller, and where M is the last iterator i in [__first, __last)
- * such that no other element in the range is larger.
- */
- template<typename _ForwardIterator>
+ template<typename _ForwardIterator, typename _Compare>
pair<_ForwardIterator, _ForwardIterator>
- minmax_element(_ForwardIterator __first, _ForwardIterator __last)
+ __minmax_element(_ForwardIterator __first, _ForwardIterator __last,
+ _Compare __comp)
{
- // concept requirements
- __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>)
- __glibcxx_function_requires(_LessThanComparableConcept<
- typename iterator_traits<_ForwardIterator>::value_type>)
- __glibcxx_requires_valid_range(__first, __last);
-
_ForwardIterator __next = __first;
if (__first == __last
|| ++__next == __last)
return std::make_pair(__first, __first);
_ForwardIterator __min, __max;
- if (*__next < *__first)
+ if (__comp(__next, __first))
{
__min = __next;
__max = __first;
__next = __first;
if (++__next == __last)
{
- if (*__first < *__min)
+ if (__comp(__first, __min))
__min = __first;
- else if (!(*__first < *__max))
+ else if (!__comp(__first, __max))
__max = __first;
break;
}
- if (*__next < *__first)
+ if (__comp(__next, __first))
{
- if (*__next < *__min)
+ if (__comp(__next, __min))
__min = __next;
- if (!(*__first < *__max))
+ if (!__comp(__first, __max))
__max = __first;
}
else
{
- if (*__first < *__min)
+ if (__comp(__first, __min))
__min = __first;
- if (!(*__next < *__max))
+ if (!__comp(__next, __max))
__max = __next;
}
return std::make_pair(__min, __max);
}
+ /**
+ * @brief Return a pair of iterators pointing to the minimum and maximum
+ * elements in a range.
+ * @ingroup sorting_algorithms
+ * @param __first Start of range.
+ * @param __last End of range.
+ * @return make_pair(m, M), where m is the first iterator i in
+ * [__first, __last) such that no other element in the range is
+ * smaller, and where M is the last iterator i in [__first, __last)
+ * such that no other element in the range is larger.
+ */
+ template<typename _ForwardIterator>
+ inline pair<_ForwardIterator, _ForwardIterator>
+ minmax_element(_ForwardIterator __first, _ForwardIterator __last)
+ {
+ // concept requirements
+ __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>)
+ __glibcxx_function_requires(_LessThanComparableConcept<
+ typename iterator_traits<_ForwardIterator>::value_type>)
+ __glibcxx_requires_valid_range(__first, __last);
+
+ return std::__minmax_element(__first, __last,
+ __gnu_cxx::__ops::__iter_less_iter());
+ }
+
/**
* @brief Return a pair of iterators pointing to the minimum and maximum
* elements in a range.
* such that no other element in the range is larger.
*/
template<typename _ForwardIterator, typename _Compare>
- pair<_ForwardIterator, _ForwardIterator>
+ inline pair<_ForwardIterator, _ForwardIterator>
minmax_element(_ForwardIterator __first, _ForwardIterator __last,
_Compare __comp)
{
typename iterator_traits<_ForwardIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- _ForwardIterator __next = __first;
- if (__first == __last
- || ++__next == __last)
- return std::make_pair(__first, __first);
-
- _ForwardIterator __min, __max;
- if (__comp(*__next, *__first))
- {
- __min = __next;
- __max = __first;
- }
- else
- {
- __min = __first;
- __max = __next;
- }
-
- __first = __next;
- ++__first;
-
- while (__first != __last)
- {
- __next = __first;
- if (++__next == __last)
- {
- if (__comp(*__first, *__min))
- __min = __first;
- else if (!__comp(*__first, *__max))
- __max = __first;
- break;
- }
-
- if (__comp(*__next, *__first))
- {
- if (__comp(*__next, *__min))
- __min = __next;
- if (!__comp(*__first, *__max))
- __max = __first;
- }
- else
- {
- if (__comp(*__first, *__min))
- __min = __first;
- if (!__comp(*__next, *__max))
- __max = __next;
- }
-
- __first = __next;
- ++__first;
- }
-
- return std::make_pair(__min, __max);
+ return std::__minmax_element(__first, __last,
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
}
// N2722 + DR 915.
return std::make_pair(*__p.first, *__p.second);
}
+ template<typename _ForwardIterator1, typename _ForwardIterator2,
+ typename _BinaryPredicate>
+ bool
+ __is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
+ _ForwardIterator2 __first2, _BinaryPredicate __pred)
+ {
+ // Efficiently compare identical prefixes: O(N) if sequences
+ // have the same elements in the same order.
+ for (; __first1 != __last1; ++__first1, ++__first2)
+ if (!__pred(__first1, __first2))
+ break;
+
+ if (__first1 == __last1)
+ return true;
+
+ // Establish __last2 assuming equal ranges by iterating over the
+ // rest of the list.
+ _ForwardIterator2 __last2 = __first2;
+ std::advance(__last2, std::distance(__first1, __last1));
+ for (_ForwardIterator1 __scan = __first1; __scan != __last1; ++__scan)
+ {
+ if (__scan != std::__find_if(__first1, __scan,
+ __gnu_cxx::__ops::__iter_comp_iter(__pred, __scan)))
+ continue; // We've seen this one before.
+
+ auto __matches
+ = std::__count_if(__first2, __last2,
+ __gnu_cxx::__ops::__iter_comp_iter(__pred, __scan));
+ if (0 == __matches ||
+ std::__count_if(__scan, __last1,
+ __gnu_cxx::__ops::__iter_comp_iter(__pred, __scan))
+ != __matches)
+ return false;
+ }
+ return true;
+ }
+
/**
- * @brief Checks whether a permutaion of the second sequence is equal
+ * @brief Checks whether a permutation of the second sequence is equal
* to the first sequence.
* @ingroup non_mutating_algorithms
* @param __first1 Start of first range.
* returns true; otherwise, returns false.
*/
template<typename _ForwardIterator1, typename _ForwardIterator2>
- bool
+ inline bool
is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
_ForwardIterator2 __first2)
{
+ // concept requirements
+ __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator1>)
+ __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator2>)
+ __glibcxx_function_requires(_EqualOpConcept<
+ typename iterator_traits<_ForwardIterator1>::value_type,
+ typename iterator_traits<_ForwardIterator2>::value_type>)
+ __glibcxx_requires_valid_range(__first1, __last1);
+
+ return std::__is_permutation(__first1, __last1, __first2,
+ __gnu_cxx::__ops::__iter_equal_to_iter());
+ }
+
+ /**
+ * @brief Checks whether a permutation of the second sequence is equal
+ * to the first sequence.
+ * @ingroup non_mutating_algorithms
+ * @param __first1 Start of first range.
+ * @param __last1 End of first range.
+ * @param __first2 Start of second range.
+ * @param __pred A binary predicate.
+ * @return true if there exists a permutation of the elements in
+ * the range [__first2, __first2 + (__last1 - __first1)),
+ * beginning with ForwardIterator2 begin, such that
+ * equal(__first1, __last1, __begin, __pred) returns true;
+ * otherwise, returns false.
+ */
+ template<typename _ForwardIterator1, typename _ForwardIterator2,
+ typename _BinaryPredicate>
+ inline bool
+ is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
+ _ForwardIterator2 __first2, _BinaryPredicate __pred)
+ {
+ // concept requirements
+ __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator1>)
+ __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator2>)
+ __glibcxx_function_requires(_BinaryPredicateConcept<_BinaryPredicate,
+ typename iterator_traits<_ForwardIterator1>::value_type,
+ typename iterator_traits<_ForwardIterator2>::value_type>)
+ __glibcxx_requires_valid_range(__first1, __last1);
+
+ return std::__is_permutation(__first1, __last1, __first2,
+ __gnu_cxx::__ops::__iter_comp_iter(__pred));
+ }
+
+#if __cplusplus > 201103L
+ template<typename _ForwardIterator1, typename _ForwardIterator2,
+ typename _BinaryPredicate>
+ bool
+ __is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
+ _ForwardIterator2 __first2, _ForwardIterator2 __last2,
+ _BinaryPredicate __pred)
+ {
+ using _Cat1
+ = typename iterator_traits<_ForwardIterator1>::iterator_category;
+ using _Cat2
+ = typename iterator_traits<_ForwardIterator2>::iterator_category;
+ using _It1_is_RA = is_same<_Cat1, random_access_iterator_tag>;
+ using _It2_is_RA = is_same<_Cat2, random_access_iterator_tag>;
+ constexpr bool __ra_iters = _It1_is_RA() && _It2_is_RA();
+ if (__ra_iters)
+ {
+ auto __d1 = std::distance(__first1, __last1);
+ auto __d2 = std::distance(__first2, __last2);
+ if (__d1 != __d2)
+ return false;
+ }
+
// Efficiently compare identical prefixes: O(N) if sequences
// have the same elements in the same order.
for (; __first1 != __last1; ++__first1, ++__first2)
- if (!(*__first1 == *__first2))
+ if (!__pred(__first1, __first2))
break;
- if (__first1 == __last1)
- return true;
+ if (__ra_iters)
+ {
+ if (__first1 == __last1)
+ return true;
+ }
+ else
+ {
+ auto __d1 = std::distance(__first1, __last1);
+ auto __d2 = std::distance(__first2, __last2);
+ if (__d1 == 0 && __d2 == 0)
+ return true;
+ if (__d1 != __d2)
+ return false;
+ }
- // Establish __last2 assuming equal ranges by iterating over the
- // rest of the list.
- _ForwardIterator2 __last2 = __first2;
- std::advance(__last2, std::distance(__first1, __last1));
for (_ForwardIterator1 __scan = __first1; __scan != __last1; ++__scan)
{
- if (__scan != _GLIBCXX_STD_A::find(__first1, __scan, *__scan))
+ if (__scan != std::__find_if(__first1, __scan,
+ __gnu_cxx::__ops::__iter_comp_iter(__pred, __scan)))
continue; // We've seen this one before.
- auto __matches = std::count(__first2, __last2, *__scan);
+ auto __matches = std::__count_if(__first2, __last2,
+ __gnu_cxx::__ops::__iter_comp_iter(__pred, __scan));
if (0 == __matches
- || std::count(__scan, __last1, *__scan) != __matches)
+ || std::__count_if(__scan, __last1,
+ __gnu_cxx::__ops::__iter_comp_iter(__pred, __scan))
+ != __matches)
return false;
}
return true;
}
+ /**
+ * @brief Checks whether a permutaion of the second sequence is equal
+ * to the first sequence.
+ * @ingroup non_mutating_algorithms
+ * @param __first1 Start of first range.
+ * @param __last1 End of first range.
+ * @param __first2 Start of second range.
+ * @param __last2 End of first range.
+ * @return true if there exists a permutation of the elements in the range
+ * [__first2, __last2), beginning with ForwardIterator2 begin,
+ * such that equal(__first1, __last1, begin) returns true;
+ * otherwise, returns false.
+ */
+ template<typename _ForwardIterator1, typename _ForwardIterator2>
+ inline bool
+ is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
+ _ForwardIterator2 __first2, _ForwardIterator2 __last2)
+ {
+ __glibcxx_requires_valid_range(__first1, __last1);
+ __glibcxx_requires_valid_range(__first2, __last2);
+
+ return
+ std::__is_permutation(__first1, __last1, __first2, __last2,
+ __gnu_cxx::__ops::__iter_equal_to_iter());
+ }
+
/**
* @brief Checks whether a permutation of the second sequence is equal
* to the first sequence.
* @param __first1 Start of first range.
* @param __last1 End of first range.
* @param __first2 Start of second range.
+ * @param __last2 End of first range.
* @param __pred A binary predicate.
- * @return true if there exists a permutation of the elements in
- * the range [__first2, __first2 + (__last1 - __first1)),
- * beginning with ForwardIterator2 begin, such that
- * equal(__first1, __last1, __begin, __pred) returns true;
+ * @return true if there exists a permutation of the elements in the range
+ * [__first2, __last2), beginning with ForwardIterator2 begin,
+ * such that equal(__first1, __last1, __begin, __pred) returns true;
* otherwise, returns false.
*/
template<typename _ForwardIterator1, typename _ForwardIterator2,
typename _BinaryPredicate>
- bool
+ inline bool
is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
- _ForwardIterator2 __first2, _BinaryPredicate __pred)
+ _ForwardIterator2 __first2, _ForwardIterator2 __last2,
+ _BinaryPredicate __pred)
{
- // Efficiently compare identical prefixes: O(N) if sequences
- // have the same elements in the same order.
- for (; __first1 != __last1; ++__first1, ++__first2)
- if (!bool(__pred(*__first1, *__first2)))
- break;
-
- if (__first1 == __last1)
- return true;
-
- // Establish __last2 assuming equal ranges by iterating over the
- // rest of the list.
- _ForwardIterator2 __last2 = __first2;
- std::advance(__last2, std::distance(__first1, __last1));
- for (_ForwardIterator1 __scan = __first1; __scan != __last1; ++__scan)
- {
- using std::placeholders::_1;
+ __glibcxx_requires_valid_range(__first1, __last1);
+ __glibcxx_requires_valid_range(__first2, __last2);
- if (__scan != _GLIBCXX_STD_A::find_if(__first1, __scan,
- std::bind(__pred, _1, *__scan)))
- continue; // We've seen this one before.
-
- auto __matches = std::count_if(__first2, __last2,
- std::bind(__pred, _1, *__scan));
- if (0 == __matches
- || std::count_if(__scan, __last1,
- std::bind(__pred, _1, *__scan)) != __matches)
- return false;
- }
- return true;
+ return std::__is_permutation(__first1, __last1, __first2, __last2,
+ __gnu_cxx::__ops::__iter_comp_iter(__pred));
}
+#endif
#ifdef _GLIBCXX_USE_C99_STDINT_TR1
/**
}
#endif
-#endif // __GXX_EXPERIMENTAL_CXX0X__
+#endif // C++11
_GLIBCXX_END_NAMESPACE_VERSION
__glibcxx_function_requires(_EqualOpConcept<
typename iterator_traits<_InputIterator>::value_type, _Tp>)
__glibcxx_requires_valid_range(__first, __last);
- return std::__find(__first, __last, __val,
- std::__iterator_category(__first));
+ return std::__find_if(__first, __last,
+ __gnu_cxx::__ops::__iter_equals_val(__val));
}
/**
__glibcxx_function_requires(_UnaryPredicateConcept<_Predicate,
typename iterator_traits<_InputIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- return std::__find_if(__first, __last, __pred,
- std::__iterator_category(__first));
+
+ return std::__find_if(__first, __last,
+ __gnu_cxx::__ops::__pred_iter(__pred));
}
/**
* or @p __last if no such iterator exists.
*/
template<typename _ForwardIterator>
- _ForwardIterator
+ inline _ForwardIterator
adjacent_find(_ForwardIterator __first, _ForwardIterator __last)
{
// concept requirements
__glibcxx_function_requires(_EqualityComparableConcept<
typename iterator_traits<_ForwardIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- if (__first == __last)
- return __last;
- _ForwardIterator __next = __first;
- while(++__next != __last)
- {
- if (*__first == *__next)
- return __first;
- __first = __next;
- }
- return __last;
+
+ return std::__adjacent_find(__first, __last,
+ __gnu_cxx::__ops::__iter_equal_to_iter());
}
/**
* exists.
*/
template<typename _ForwardIterator, typename _BinaryPredicate>
- _ForwardIterator
+ inline _ForwardIterator
adjacent_find(_ForwardIterator __first, _ForwardIterator __last,
_BinaryPredicate __binary_pred)
{
typename iterator_traits<_ForwardIterator>::value_type,
typename iterator_traits<_ForwardIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- if (__first == __last)
- return __last;
- _ForwardIterator __next = __first;
- while(++__next != __last)
- {
- if (__binary_pred(*__first, *__next))
- return __first;
- __first = __next;
- }
- return __last;
+
+ return std::__adjacent_find(__first, __last,
+ __gnu_cxx::__ops::__iter_comp_iter(__binary_pred));
}
/**
* for which @c *i == @p __value
*/
template<typename _InputIterator, typename _Tp>
- typename iterator_traits<_InputIterator>::difference_type
+ inline typename iterator_traits<_InputIterator>::difference_type
count(_InputIterator __first, _InputIterator __last, const _Tp& __value)
{
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator>)
__glibcxx_function_requires(_EqualOpConcept<
- typename iterator_traits<_InputIterator>::value_type, _Tp>)
+ typename iterator_traits<_InputIterator>::value_type, _Tp>)
__glibcxx_requires_valid_range(__first, __last);
- typename iterator_traits<_InputIterator>::difference_type __n = 0;
- for (; __first != __last; ++__first)
- if (*__first == __value)
- ++__n;
- return __n;
+
+ return std::__count_if(__first, __last,
+ __gnu_cxx::__ops::__iter_equals_val(__value));
}
/**
* for which @p __pred(*i) is true.
*/
template<typename _InputIterator, typename _Predicate>
- typename iterator_traits<_InputIterator>::difference_type
+ inline typename iterator_traits<_InputIterator>::difference_type
count_if(_InputIterator __first, _InputIterator __last, _Predicate __pred)
{
// concept requirements
__glibcxx_function_requires(_UnaryPredicateConcept<_Predicate,
typename iterator_traits<_InputIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- typename iterator_traits<_InputIterator>::difference_type __n = 0;
- for (; __first != __last; ++__first)
- if (__pred(*__first))
- ++__n;
- return __n;
+
+ return std::__count_if(__first, __last,
+ __gnu_cxx::__ops::__pred_iter(__pred));
}
/**
* @p [__first1,__last1-(__last2-__first2))
*/
template<typename _ForwardIterator1, typename _ForwardIterator2>
- _ForwardIterator1
+ inline _ForwardIterator1
search(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
_ForwardIterator2 __first2, _ForwardIterator2 __last2)
{
__glibcxx_requires_valid_range(__first1, __last1);
__glibcxx_requires_valid_range(__first2, __last2);
- // Test for empty ranges
- if (__first1 == __last1 || __first2 == __last2)
- return __first1;
-
- // Test for a pattern of length 1.
- _ForwardIterator2 __p1(__first2);
- if (++__p1 == __last2)
- return _GLIBCXX_STD_A::find(__first1, __last1, *__first2);
-
- // General case.
- _ForwardIterator2 __p;
- _ForwardIterator1 __current = __first1;
-
- for (;;)
- {
- __first1 = _GLIBCXX_STD_A::find(__first1, __last1, *__first2);
- if (__first1 == __last1)
- return __last1;
-
- __p = __p1;
- __current = __first1;
- if (++__current == __last1)
- return __last1;
-
- while (*__current == *__p)
- {
- if (++__p == __last2)
- return __first1;
- if (++__current == __last1)
- return __last1;
- }
- ++__first1;
- }
- return __first1;
+ return std::__search(__first1, __last1, __first2, __last2,
+ __gnu_cxx::__ops::__iter_equal_to_iter());
}
/**
*/
template<typename _ForwardIterator1, typename _ForwardIterator2,
typename _BinaryPredicate>
- _ForwardIterator1
+ inline _ForwardIterator1
search(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
_ForwardIterator2 __first2, _ForwardIterator2 __last2,
_BinaryPredicate __predicate)
__glibcxx_requires_valid_range(__first1, __last1);
__glibcxx_requires_valid_range(__first2, __last2);
- // Test for empty ranges
- if (__first1 == __last1 || __first2 == __last2)
- return __first1;
-
- // Test for a pattern of length 1.
- _ForwardIterator2 __p1(__first2);
- if (++__p1 == __last2)
- {
- while (__first1 != __last1
- && !bool(__predicate(*__first1, *__first2)))
- ++__first1;
- return __first1;
- }
-
- // General case.
- _ForwardIterator2 __p;
- _ForwardIterator1 __current = __first1;
-
- for (;;)
- {
- while (__first1 != __last1
- && !bool(__predicate(*__first1, *__first2)))
- ++__first1;
- if (__first1 == __last1)
- return __last1;
-
- __p = __p1;
- __current = __first1;
- if (++__current == __last1)
- return __last1;
-
- while (__predicate(*__current, *__p))
- {
- if (++__p == __last2)
- return __first1;
- if (++__current == __last1)
- return __last1;
- }
- ++__first1;
- }
- return __first1;
+ return std::__search(__first1, __last1, __first2, __last2,
+ __gnu_cxx::__ops::__iter_comp_iter(__predicate));
}
-
/**
* @brief Search a sequence for a number of consecutive values.
* @ingroup non_mutating_algorithms
* equal to @p __val.
*/
template<typename _ForwardIterator, typename _Integer, typename _Tp>
- _ForwardIterator
+ inline _ForwardIterator
search_n(_ForwardIterator __first, _ForwardIterator __last,
_Integer __count, const _Tp& __val)
{
// concept requirements
__glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>)
__glibcxx_function_requires(_EqualOpConcept<
- typename iterator_traits<_ForwardIterator>::value_type, _Tp>)
+ typename iterator_traits<_ForwardIterator>::value_type, _Tp>)
__glibcxx_requires_valid_range(__first, __last);
- if (__count <= 0)
- return __first;
- if (__count == 1)
- return _GLIBCXX_STD_A::find(__first, __last, __val);
- return std::__search_n(__first, __last, __count, __val,
- std::__iterator_category(__first));
+ return std::__search_n(__first, __last, __count,
+ __gnu_cxx::__ops::__iter_equals_val(__val));
}
*/
template<typename _ForwardIterator, typename _Integer, typename _Tp,
typename _BinaryPredicate>
- _ForwardIterator
+ inline _ForwardIterator
search_n(_ForwardIterator __first, _ForwardIterator __last,
_Integer __count, const _Tp& __val,
_BinaryPredicate __binary_pred)
typename iterator_traits<_ForwardIterator>::value_type, _Tp>)
__glibcxx_requires_valid_range(__first, __last);
- if (__count <= 0)
- return __first;
- if (__count == 1)
- {
- while (__first != __last && !bool(__binary_pred(*__first, __val)))
- ++__first;
- return __first;
- }
- return std::__search_n(__first, __last, __count, __val, __binary_pred,
- std::__iterator_category(__first));
+ return std::__search_n(__first, __last, __count,
+ __gnu_cxx::__ops::__iter_comp_val(__binary_pred, __val));
}
return __first;
}
-
/**
* @brief Copy a sequence, removing consecutive duplicate values.
* @ingroup mutating_algorithms
if (__first == __last)
return __result;
return std::__unique_copy(__first, __last, __result,
+ __gnu_cxx::__ops::__iter_equal_to_iter(),
std::__iterator_category(__first),
std::__iterator_category(__result));
}
if (__first == __last)
return __result;
- return std::__unique_copy(__first, __last, __result, __binary_pred,
+ return std::__unique_copy(__first, __last, __result,
+ __gnu_cxx::__ops::__iter_comp_iter(__binary_pred),
std::__iterator_category(__first),
std::__iterator_category(__result));
}
-
/**
* @brief Randomly shuffle the elements of a sequence.
* @ingroup mutating_algorithms
if (__first != __last)
for (_RandomAccessIterator __i = __first + 1; __i != __last; ++__i)
- std::iter_swap(__i, __first + (std::rand() % ((__i - __first) + 1)));
+ {
+ // XXX rand() % N is not uniformly distributed
+ _RandomAccessIterator __j = __first
+ + std::rand() % ((__i - __first) + 1);
+ if (__i != __j)
+ std::iter_swap(__i, __j);
+ }
}
/**
template<typename _RandomAccessIterator, typename _RandomNumberGenerator>
void
random_shuffle(_RandomAccessIterator __first, _RandomAccessIterator __last,
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
+#if __cplusplus >= 201103L
_RandomNumberGenerator&& __rand)
#else
_RandomNumberGenerator& __rand)
if (__first == __last)
return;
for (_RandomAccessIterator __i = __first + 1; __i != __last; ++__i)
- std::iter_swap(__i, __first + __rand((__i - __first) + 1));
+ {
+ _RandomAccessIterator __j = __first + __rand((__i - __first) + 1);
+ if (__i != __j)
+ std::iter_swap(__i, __j);
+ }
}
}
-
/**
* @brief Sort the smallest elements of a sequence.
* @ingroup sorting_algorithms
_RandomAccessIterator __middle,
_RandomAccessIterator __last)
{
- typedef typename iterator_traits<_RandomAccessIterator>::value_type
- _ValueType;
-
// concept requirements
__glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept<
_RandomAccessIterator>)
- __glibcxx_function_requires(_LessThanComparableConcept<_ValueType>)
+ __glibcxx_function_requires(_LessThanComparableConcept<
+ typename iterator_traits<_RandomAccessIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __middle);
__glibcxx_requires_valid_range(__middle, __last);
- std::__heap_select(__first, __middle, __last);
- std::sort_heap(__first, __middle);
+ std::__partial_sort(__first, __middle, __last,
+ __gnu_cxx::__ops::__iter_less_iter());
}
/**
_RandomAccessIterator __last,
_Compare __comp)
{
- typedef typename iterator_traits<_RandomAccessIterator>::value_type
- _ValueType;
-
// concept requirements
__glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept<
_RandomAccessIterator>)
__glibcxx_function_requires(_BinaryPredicateConcept<_Compare,
- _ValueType, _ValueType>)
+ typename iterator_traits<_RandomAccessIterator>::value_type,
+ typename iterator_traits<_RandomAccessIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __middle);
__glibcxx_requires_valid_range(__middle, __last);
- std::__heap_select(__first, __middle, __last, __comp);
- std::sort_heap(__first, __middle, __comp);
+ std::__partial_sort(__first, __middle, __last,
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
}
/**
nth_element(_RandomAccessIterator __first, _RandomAccessIterator __nth,
_RandomAccessIterator __last)
{
- typedef typename iterator_traits<_RandomAccessIterator>::value_type
- _ValueType;
-
// concept requirements
__glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept<
_RandomAccessIterator>)
- __glibcxx_function_requires(_LessThanComparableConcept<_ValueType>)
+ __glibcxx_function_requires(_LessThanComparableConcept<
+ typename iterator_traits<_RandomAccessIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __nth);
__glibcxx_requires_valid_range(__nth, __last);
return;
std::__introselect(__first, __nth, __last,
- std::__lg(__last - __first) * 2);
+ std::__lg(__last - __first) * 2,
+ __gnu_cxx::__ops::__iter_less_iter());
}
/**
nth_element(_RandomAccessIterator __first, _RandomAccessIterator __nth,
_RandomAccessIterator __last, _Compare __comp)
{
- typedef typename iterator_traits<_RandomAccessIterator>::value_type
- _ValueType;
-
// concept requirements
__glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept<
_RandomAccessIterator>)
__glibcxx_function_requires(_BinaryPredicateConcept<_Compare,
- _ValueType, _ValueType>)
+ typename iterator_traits<_RandomAccessIterator>::value_type,
+ typename iterator_traits<_RandomAccessIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __nth);
__glibcxx_requires_valid_range(__nth, __last);
return;
std::__introselect(__first, __nth, __last,
- std::__lg(__last - __first) * 2, __comp);
+ std::__lg(__last - __first) * 2,
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
}
-
/**
* @brief Sort the elements of a sequence.
* @ingroup sorting_algorithms
inline void
sort(_RandomAccessIterator __first, _RandomAccessIterator __last)
{
- typedef typename iterator_traits<_RandomAccessIterator>::value_type
- _ValueType;
-
// concept requirements
__glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept<
_RandomAccessIterator>)
- __glibcxx_function_requires(_LessThanComparableConcept<_ValueType>)
+ __glibcxx_function_requires(_LessThanComparableConcept<
+ typename iterator_traits<_RandomAccessIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- if (__first != __last)
- {
- std::__introsort_loop(__first, __last,
- std::__lg(__last - __first) * 2);
- std::__final_insertion_sort(__first, __last);
- }
+ std::__sort(__first, __last, __gnu_cxx::__ops::__iter_less_iter());
}
/**
sort(_RandomAccessIterator __first, _RandomAccessIterator __last,
_Compare __comp)
{
- typedef typename iterator_traits<_RandomAccessIterator>::value_type
- _ValueType;
-
// concept requirements
__glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept<
_RandomAccessIterator>)
- __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, _ValueType,
- _ValueType>)
+ __glibcxx_function_requires(_BinaryPredicateConcept<_Compare,
+ typename iterator_traits<_RandomAccessIterator>::value_type,
+ typename iterator_traits<_RandomAccessIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- if (__first != __last)
+ std::__sort(__first, __last, __gnu_cxx::__ops::__iter_comp_iter(__comp));
+ }
+
+ template<typename _InputIterator1, typename _InputIterator2,
+ typename _OutputIterator, typename _Compare>
+ _OutputIterator
+ __merge(_InputIterator1 __first1, _InputIterator1 __last1,
+ _InputIterator2 __first2, _InputIterator2 __last2,
+ _OutputIterator __result, _Compare __comp)
+ {
+ while (__first1 != __last1 && __first2 != __last2)
{
- std::__introsort_loop(__first, __last,
- std::__lg(__last - __first) * 2, __comp);
- std::__final_insertion_sort(__first, __last, __comp);
+ if (__comp(__first2, __first1))
+ {
+ *__result = *__first2;
+ ++__first2;
+ }
+ else
+ {
+ *__result = *__first1;
+ ++__first1;
+ }
+ ++__result;
}
+ return std::copy(__first2, __last2,
+ std::copy(__first1, __last1, __result));
}
/**
*/
template<typename _InputIterator1, typename _InputIterator2,
typename _OutputIterator>
- _OutputIterator
+ inline _OutputIterator
merge(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _InputIterator2 __last2,
_OutputIterator __result)
{
- typedef typename iterator_traits<_InputIterator1>::value_type
- _ValueType1;
- typedef typename iterator_traits<_InputIterator2>::value_type
- _ValueType2;
-
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>)
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
- _ValueType1>)
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
- _ValueType2>)
- __glibcxx_function_requires(_LessThanOpConcept<_ValueType2, _ValueType1>)
+ typename iterator_traits<_InputIterator2>::value_type>)
+ __glibcxx_function_requires(_LessThanOpConcept<
+ typename iterator_traits<_InputIterator2>::value_type,
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_requires_sorted_set(__first1, __last1, __first2);
__glibcxx_requires_sorted_set(__first2, __last2, __first1);
- while (__first1 != __last1 && __first2 != __last2)
- {
- if (*__first2 < *__first1)
- {
- *__result = *__first2;
- ++__first2;
- }
- else
- {
- *__result = *__first1;
- ++__first1;
- }
- ++__result;
- }
- return std::copy(__first2, __last2, std::copy(__first1, __last1,
- __result));
+ return _GLIBCXX_STD_A::__merge(__first1, __last1,
+ __first2, __last2, __result,
+ __gnu_cxx::__ops::__iter_less_iter());
}
/**
*/
template<typename _InputIterator1, typename _InputIterator2,
typename _OutputIterator, typename _Compare>
- _OutputIterator
+ inline _OutputIterator
merge(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _InputIterator2 __last2,
_OutputIterator __result, _Compare __comp)
{
- typedef typename iterator_traits<_InputIterator1>::value_type
- _ValueType1;
- typedef typename iterator_traits<_InputIterator2>::value_type
- _ValueType2;
-
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>)
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
- _ValueType1>)
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
- _ValueType2>)
+ typename iterator_traits<_InputIterator2>::value_type>)
__glibcxx_function_requires(_BinaryPredicateConcept<_Compare,
- _ValueType2, _ValueType1>)
+ typename iterator_traits<_InputIterator2>::value_type,
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_requires_sorted_set_pred(__first1, __last1, __first2, __comp);
__glibcxx_requires_sorted_set_pred(__first2, __last2, __first1, __comp);
- while (__first1 != __last1 && __first2 != __last2)
- {
- if (__comp(*__first2, *__first1))
- {
- *__result = *__first2;
- ++__first2;
- }
- else
- {
- *__result = *__first1;
- ++__first1;
- }
- ++__result;
- }
- return std::copy(__first2, __last2, std::copy(__first1, __last1,
- __result));
+ return _GLIBCXX_STD_A::__merge(__first1, __last1,
+ __first2, __last2, __result,
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
+ }
+
+ template<typename _RandomAccessIterator, typename _Compare>
+ inline void
+ __stable_sort(_RandomAccessIterator __first, _RandomAccessIterator __last,
+ _Compare __comp)
+ {
+ typedef typename iterator_traits<_RandomAccessIterator>::value_type
+ _ValueType;
+ typedef typename iterator_traits<_RandomAccessIterator>::difference_type
+ _DistanceType;
+
+ typedef _Temporary_buffer<_RandomAccessIterator, _ValueType> _TmpBuf;
+ _TmpBuf __buf(__first, __last);
+
+ if (__buf.begin() == 0)
+ std::__inplace_stable_sort(__first, __last, __comp);
+ else
+ std::__stable_sort_adaptive(__first, __last, __buf.begin(),
+ _DistanceType(__buf.size()), __comp);
}
-
/**
* @brief Sort the elements of a sequence, preserving the relative order
* of equivalent elements.
inline void
stable_sort(_RandomAccessIterator __first, _RandomAccessIterator __last)
{
- typedef typename iterator_traits<_RandomAccessIterator>::value_type
- _ValueType;
- typedef typename iterator_traits<_RandomAccessIterator>::difference_type
- _DistanceType;
-
// concept requirements
__glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept<
_RandomAccessIterator>)
- __glibcxx_function_requires(_LessThanComparableConcept<_ValueType>)
+ __glibcxx_function_requires(_LessThanComparableConcept<
+ typename iterator_traits<_RandomAccessIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- _Temporary_buffer<_RandomAccessIterator, _ValueType> __buf(__first,
- __last);
- if (__buf.begin() == 0)
- std::__inplace_stable_sort(__first, __last);
- else
- std::__stable_sort_adaptive(__first, __last, __buf.begin(),
- _DistanceType(__buf.size()));
+ _GLIBCXX_STD_A::__stable_sort(__first, __last,
+ __gnu_cxx::__ops::__iter_less_iter());
}
/**
stable_sort(_RandomAccessIterator __first, _RandomAccessIterator __last,
_Compare __comp)
{
- typedef typename iterator_traits<_RandomAccessIterator>::value_type
- _ValueType;
- typedef typename iterator_traits<_RandomAccessIterator>::difference_type
- _DistanceType;
-
// concept requirements
__glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept<
_RandomAccessIterator>)
__glibcxx_function_requires(_BinaryPredicateConcept<_Compare,
- _ValueType,
- _ValueType>)
+ typename iterator_traits<_RandomAccessIterator>::value_type,
+ typename iterator_traits<_RandomAccessIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- _Temporary_buffer<_RandomAccessIterator, _ValueType> __buf(__first,
- __last);
- if (__buf.begin() == 0)
- std::__inplace_stable_sort(__first, __last, __comp);
- else
- std::__stable_sort_adaptive(__first, __last, __buf.begin(),
- _DistanceType(__buf.size()), __comp);
+ _GLIBCXX_STD_A::__stable_sort(__first, __last,
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
}
+ template<typename _InputIterator1, typename _InputIterator2,
+ typename _OutputIterator,
+ typename _Compare>
+ _OutputIterator
+ __set_union(_InputIterator1 __first1, _InputIterator1 __last1,
+ _InputIterator2 __first2, _InputIterator2 __last2,
+ _OutputIterator __result, _Compare __comp)
+ {
+ while (__first1 != __last1 && __first2 != __last2)
+ {
+ if (__comp(__first1, __first2))
+ {
+ *__result = *__first1;
+ ++__first1;
+ }
+ else if (__comp(__first2, __first1))
+ {
+ *__result = *__first2;
+ ++__first2;
+ }
+ else
+ {
+ *__result = *__first1;
+ ++__first1;
+ ++__first2;
+ }
+ ++__result;
+ }
+ return std::copy(__first2, __last2,
+ std::copy(__first1, __last1, __result));
+ }
/**
* @brief Return the union of two sorted ranges.
*/
template<typename _InputIterator1, typename _InputIterator2,
typename _OutputIterator>
- _OutputIterator
+ inline _OutputIterator
set_union(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _InputIterator2 __last2,
_OutputIterator __result)
{
- typedef typename iterator_traits<_InputIterator1>::value_type
- _ValueType1;
- typedef typename iterator_traits<_InputIterator2>::value_type
- _ValueType2;
-
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>)
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
- _ValueType1>)
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
- _ValueType2>)
- __glibcxx_function_requires(_LessThanOpConcept<_ValueType1, _ValueType2>)
- __glibcxx_function_requires(_LessThanOpConcept<_ValueType2, _ValueType1>)
+ typename iterator_traits<_InputIterator2>::value_type>)
+ __glibcxx_function_requires(_LessThanOpConcept<
+ typename iterator_traits<_InputIterator1>::value_type,
+ typename iterator_traits<_InputIterator2>::value_type>)
+ __glibcxx_function_requires(_LessThanOpConcept<
+ typename iterator_traits<_InputIterator2>::value_type,
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_requires_sorted_set(__first1, __last1, __first2);
__glibcxx_requires_sorted_set(__first2, __last2, __first1);
- while (__first1 != __last1 && __first2 != __last2)
- {
- if (*__first1 < *__first2)
- {
- *__result = *__first1;
- ++__first1;
- }
- else if (*__first2 < *__first1)
- {
- *__result = *__first2;
- ++__first2;
- }
- else
- {
- *__result = *__first1;
- ++__first1;
- ++__first2;
- }
- ++__result;
- }
- return std::copy(__first2, __last2, std::copy(__first1, __last1,
- __result));
+ return _GLIBCXX_STD_A::__set_union(__first1, __last1,
+ __first2, __last2, __result,
+ __gnu_cxx::__ops::__iter_less_iter());
}
/**
*/
template<typename _InputIterator1, typename _InputIterator2,
typename _OutputIterator, typename _Compare>
- _OutputIterator
+ inline _OutputIterator
set_union(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _InputIterator2 __last2,
_OutputIterator __result, _Compare __comp)
{
- typedef typename iterator_traits<_InputIterator1>::value_type
- _ValueType1;
- typedef typename iterator_traits<_InputIterator2>::value_type
- _ValueType2;
-
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>)
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
- _ValueType1>)
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
- _ValueType2>)
+ typename iterator_traits<_InputIterator2>::value_type>)
__glibcxx_function_requires(_BinaryPredicateConcept<_Compare,
- _ValueType1, _ValueType2>)
+ typename iterator_traits<_InputIterator1>::value_type,
+ typename iterator_traits<_InputIterator2>::value_type>)
__glibcxx_function_requires(_BinaryPredicateConcept<_Compare,
- _ValueType2, _ValueType1>)
+ typename iterator_traits<_InputIterator2>::value_type,
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_requires_sorted_set_pred(__first1, __last1, __first2, __comp);
__glibcxx_requires_sorted_set_pred(__first2, __last2, __first1, __comp);
+ return _GLIBCXX_STD_A::__set_union(__first1, __last1,
+ __first2, __last2, __result,
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
+ }
+
+ template<typename _InputIterator1, typename _InputIterator2,
+ typename _OutputIterator,
+ typename _Compare>
+ _OutputIterator
+ __set_intersection(_InputIterator1 __first1, _InputIterator1 __last1,
+ _InputIterator2 __first2, _InputIterator2 __last2,
+ _OutputIterator __result, _Compare __comp)
+ {
while (__first1 != __last1 && __first2 != __last2)
- {
- if (__comp(*__first1, *__first2))
- {
- *__result = *__first1;
- ++__first1;
- }
- else if (__comp(*__first2, *__first1))
- {
- *__result = *__first2;
- ++__first2;
- }
- else
- {
- *__result = *__first1;
- ++__first1;
- ++__first2;
- }
- ++__result;
- }
- return std::copy(__first2, __last2, std::copy(__first1, __last1,
- __result));
+ if (__comp(__first1, __first2))
+ ++__first1;
+ else if (__comp(__first2, __first1))
+ ++__first2;
+ else
+ {
+ *__result = *__first1;
+ ++__first1;
+ ++__first2;
+ ++__result;
+ }
+ return __result;
}
/**
*/
template<typename _InputIterator1, typename _InputIterator2,
typename _OutputIterator>
- _OutputIterator
+ inline _OutputIterator
set_intersection(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _InputIterator2 __last2,
_OutputIterator __result)
{
- typedef typename iterator_traits<_InputIterator1>::value_type
- _ValueType1;
- typedef typename iterator_traits<_InputIterator2>::value_type
- _ValueType2;
-
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>)
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
- _ValueType1>)
- __glibcxx_function_requires(_LessThanOpConcept<_ValueType1, _ValueType2>)
- __glibcxx_function_requires(_LessThanOpConcept<_ValueType2, _ValueType1>)
+ typename iterator_traits<_InputIterator1>::value_type>)
+ __glibcxx_function_requires(_LessThanOpConcept<
+ typename iterator_traits<_InputIterator1>::value_type,
+ typename iterator_traits<_InputIterator2>::value_type>)
+ __glibcxx_function_requires(_LessThanOpConcept<
+ typename iterator_traits<_InputIterator2>::value_type,
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_requires_sorted_set(__first1, __last1, __first2);
__glibcxx_requires_sorted_set(__first2, __last2, __first1);
- while (__first1 != __last1 && __first2 != __last2)
- if (*__first1 < *__first2)
- ++__first1;
- else if (*__first2 < *__first1)
- ++__first2;
- else
- {
- *__result = *__first1;
- ++__first1;
- ++__first2;
- ++__result;
- }
- return __result;
+ return _GLIBCXX_STD_A::__set_intersection(__first1, __last1,
+ __first2, __last2, __result,
+ __gnu_cxx::__ops::__iter_less_iter());
}
/**
*/
template<typename _InputIterator1, typename _InputIterator2,
typename _OutputIterator, typename _Compare>
- _OutputIterator
+ inline _OutputIterator
set_intersection(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _InputIterator2 __last2,
_OutputIterator __result, _Compare __comp)
{
- typedef typename iterator_traits<_InputIterator1>::value_type
- _ValueType1;
- typedef typename iterator_traits<_InputIterator2>::value_type
- _ValueType2;
-
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>)
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
- _ValueType1>)
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_function_requires(_BinaryPredicateConcept<_Compare,
- _ValueType1, _ValueType2>)
+ typename iterator_traits<_InputIterator1>::value_type,
+ typename iterator_traits<_InputIterator2>::value_type>)
__glibcxx_function_requires(_BinaryPredicateConcept<_Compare,
- _ValueType2, _ValueType1>)
+ typename iterator_traits<_InputIterator2>::value_type,
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_requires_sorted_set_pred(__first1, __last1, __first2, __comp);
__glibcxx_requires_sorted_set_pred(__first2, __last2, __first1, __comp);
+ return _GLIBCXX_STD_A::__set_intersection(__first1, __last1,
+ __first2, __last2, __result,
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
+ }
+
+ template<typename _InputIterator1, typename _InputIterator2,
+ typename _OutputIterator,
+ typename _Compare>
+ _OutputIterator
+ __set_difference(_InputIterator1 __first1, _InputIterator1 __last1,
+ _InputIterator2 __first2, _InputIterator2 __last2,
+ _OutputIterator __result, _Compare __comp)
+ {
while (__first1 != __last1 && __first2 != __last2)
- if (__comp(*__first1, *__first2))
- ++__first1;
- else if (__comp(*__first2, *__first1))
+ if (__comp(__first1, __first2))
+ {
+ *__result = *__first1;
+ ++__first1;
+ ++__result;
+ }
+ else if (__comp(__first2, __first1))
++__first2;
else
{
- *__result = *__first1;
++__first1;
++__first2;
- ++__result;
}
- return __result;
+ return std::copy(__first1, __last1, __result);
}
/**
*/
template<typename _InputIterator1, typename _InputIterator2,
typename _OutputIterator>
- _OutputIterator
+ inline _OutputIterator
set_difference(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _InputIterator2 __last2,
_OutputIterator __result)
{
- typedef typename iterator_traits<_InputIterator1>::value_type
- _ValueType1;
- typedef typename iterator_traits<_InputIterator2>::value_type
- _ValueType2;
-
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>)
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
- _ValueType1>)
- __glibcxx_function_requires(_LessThanOpConcept<_ValueType1, _ValueType2>)
- __glibcxx_function_requires(_LessThanOpConcept<_ValueType2, _ValueType1>)
+ typename iterator_traits<_InputIterator1>::value_type>)
+ __glibcxx_function_requires(_LessThanOpConcept<
+ typename iterator_traits<_InputIterator1>::value_type,
+ typename iterator_traits<_InputIterator2>::value_type>)
+ __glibcxx_function_requires(_LessThanOpConcept<
+ typename iterator_traits<_InputIterator2>::value_type,
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_requires_sorted_set(__first1, __last1, __first2);
__glibcxx_requires_sorted_set(__first2, __last2, __first1);
- while (__first1 != __last1 && __first2 != __last2)
- if (*__first1 < *__first2)
- {
- *__result = *__first1;
- ++__first1;
- ++__result;
- }
- else if (*__first2 < *__first1)
- ++__first2;
- else
- {
- ++__first1;
- ++__first2;
- }
- return std::copy(__first1, __last1, __result);
+ return _GLIBCXX_STD_A::__set_difference(__first1, __last1,
+ __first2, __last2, __result,
+ __gnu_cxx::__ops::__iter_less_iter());
}
/**
*/
template<typename _InputIterator1, typename _InputIterator2,
typename _OutputIterator, typename _Compare>
- _OutputIterator
+ inline _OutputIterator
set_difference(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _InputIterator2 __last2,
_OutputIterator __result, _Compare __comp)
{
- typedef typename iterator_traits<_InputIterator1>::value_type
- _ValueType1;
- typedef typename iterator_traits<_InputIterator2>::value_type
- _ValueType2;
-
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>)
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
- _ValueType1>)
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_function_requires(_BinaryPredicateConcept<_Compare,
- _ValueType1, _ValueType2>)
+ typename iterator_traits<_InputIterator1>::value_type,
+ typename iterator_traits<_InputIterator2>::value_type>)
__glibcxx_function_requires(_BinaryPredicateConcept<_Compare,
- _ValueType2, _ValueType1>)
+ typename iterator_traits<_InputIterator2>::value_type,
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_requires_sorted_set_pred(__first1, __last1, __first2, __comp);
__glibcxx_requires_sorted_set_pred(__first2, __last2, __first1, __comp);
+ return _GLIBCXX_STD_A::__set_difference(__first1, __last1,
+ __first2, __last2, __result,
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
+ }
+
+ template<typename _InputIterator1, typename _InputIterator2,
+ typename _OutputIterator,
+ typename _Compare>
+ _OutputIterator
+ __set_symmetric_difference(_InputIterator1 __first1,
+ _InputIterator1 __last1,
+ _InputIterator2 __first2,
+ _InputIterator2 __last2,
+ _OutputIterator __result,
+ _Compare __comp)
+ {
while (__first1 != __last1 && __first2 != __last2)
- if (__comp(*__first1, *__first2))
+ if (__comp(__first1, __first2))
{
*__result = *__first1;
++__first1;
++__result;
}
- else if (__comp(*__first2, *__first1))
- ++__first2;
+ else if (__comp(__first2, __first1))
+ {
+ *__result = *__first2;
+ ++__first2;
+ ++__result;
+ }
else
{
++__first1;
++__first2;
}
- return std::copy(__first1, __last1, __result);
+ return std::copy(__first2, __last2,
+ std::copy(__first1, __last1, __result));
}
/**
*/
template<typename _InputIterator1, typename _InputIterator2,
typename _OutputIterator>
- _OutputIterator
+ inline _OutputIterator
set_symmetric_difference(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _InputIterator2 __last2,
_OutputIterator __result)
{
- typedef typename iterator_traits<_InputIterator1>::value_type
- _ValueType1;
- typedef typename iterator_traits<_InputIterator2>::value_type
- _ValueType2;
-
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>)
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
- _ValueType1>)
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
- _ValueType2>)
- __glibcxx_function_requires(_LessThanOpConcept<_ValueType1, _ValueType2>)
- __glibcxx_function_requires(_LessThanOpConcept<_ValueType2, _ValueType1>)
+ typename iterator_traits<_InputIterator2>::value_type>)
+ __glibcxx_function_requires(_LessThanOpConcept<
+ typename iterator_traits<_InputIterator1>::value_type,
+ typename iterator_traits<_InputIterator2>::value_type>)
+ __glibcxx_function_requires(_LessThanOpConcept<
+ typename iterator_traits<_InputIterator2>::value_type,
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_requires_sorted_set(__first1, __last1, __first2);
__glibcxx_requires_sorted_set(__first2, __last2, __first1);
- while (__first1 != __last1 && __first2 != __last2)
- if (*__first1 < *__first2)
- {
- *__result = *__first1;
- ++__first1;
- ++__result;
- }
- else if (*__first2 < *__first1)
- {
- *__result = *__first2;
- ++__first2;
- ++__result;
- }
- else
- {
- ++__first1;
- ++__first2;
- }
- return std::copy(__first2, __last2, std::copy(__first1,
- __last1, __result));
+ return _GLIBCXX_STD_A::__set_symmetric_difference(__first1, __last1,
+ __first2, __last2, __result,
+ __gnu_cxx::__ops::__iter_less_iter());
}
/**
*/
template<typename _InputIterator1, typename _InputIterator2,
typename _OutputIterator, typename _Compare>
- _OutputIterator
+ inline _OutputIterator
set_symmetric_difference(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _InputIterator2 __last2,
_OutputIterator __result,
_Compare __comp)
{
- typedef typename iterator_traits<_InputIterator1>::value_type
- _ValueType1;
- typedef typename iterator_traits<_InputIterator2>::value_type
- _ValueType2;
-
// concept requirements
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>)
__glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
- _ValueType1>)
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator,
- _ValueType2>)
+ typename iterator_traits<_InputIterator2>::value_type>)
__glibcxx_function_requires(_BinaryPredicateConcept<_Compare,
- _ValueType1, _ValueType2>)
+ typename iterator_traits<_InputIterator1>::value_type,
+ typename iterator_traits<_InputIterator2>::value_type>)
__glibcxx_function_requires(_BinaryPredicateConcept<_Compare,
- _ValueType2, _ValueType1>)
+ typename iterator_traits<_InputIterator2>::value_type,
+ typename iterator_traits<_InputIterator1>::value_type>)
__glibcxx_requires_sorted_set_pred(__first1, __last1, __first2, __comp);
__glibcxx_requires_sorted_set_pred(__first2, __last2, __first1, __comp);
- while (__first1 != __last1 && __first2 != __last2)
- if (__comp(*__first1, *__first2))
- {
- *__result = *__first1;
- ++__first1;
- ++__result;
- }
- else if (__comp(*__first2, *__first1))
- {
- *__result = *__first2;
- ++__first2;
- ++__result;
- }
- else
- {
- ++__first1;
- ++__first2;
- }
- return std::copy(__first2, __last2,
- std::copy(__first1, __last1, __result));
+ return _GLIBCXX_STD_A::__set_symmetric_difference(__first1, __last1,
+ __first2, __last2, __result,
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
}
+ template<typename _ForwardIterator, typename _Compare>
+ _ForwardIterator
+ __min_element(_ForwardIterator __first, _ForwardIterator __last,
+ _Compare __comp)
+ {
+ if (__first == __last)
+ return __first;
+ _ForwardIterator __result = __first;
+ while (++__first != __last)
+ if (__comp(__first, __result))
+ __result = __first;
+ return __result;
+ }
/**
* @brief Return the minimum element in a range.
*/
template<typename _ForwardIterator>
_ForwardIterator
- min_element(_ForwardIterator __first, _ForwardIterator __last)
+ inline min_element(_ForwardIterator __first, _ForwardIterator __last)
{
// concept requirements
__glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>)
typename iterator_traits<_ForwardIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- if (__first == __last)
- return __first;
- _ForwardIterator __result = __first;
- while (++__first != __last)
- if (*__first < *__result)
- __result = __first;
- return __result;
+ return _GLIBCXX_STD_A::__min_element(__first, __last,
+ __gnu_cxx::__ops::__iter_less_iter());
}
/**
* according to __comp.
*/
template<typename _ForwardIterator, typename _Compare>
- _ForwardIterator
+ inline _ForwardIterator
min_element(_ForwardIterator __first, _ForwardIterator __last,
_Compare __comp)
{
typename iterator_traits<_ForwardIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- if (__first == __last)
- return __first;
+ return _GLIBCXX_STD_A::__min_element(__first, __last,
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
+ }
+
+ template<typename _ForwardIterator, typename _Compare>
+ _ForwardIterator
+ __max_element(_ForwardIterator __first, _ForwardIterator __last,
+ _Compare __comp)
+ {
+ if (__first == __last) return __first;
_ForwardIterator __result = __first;
while (++__first != __last)
- if (__comp(*__first, *__result))
+ if (__comp(__result, __first))
__result = __first;
return __result;
}
* @return Iterator referencing the first instance of the largest value.
*/
template<typename _ForwardIterator>
- _ForwardIterator
+ inline _ForwardIterator
max_element(_ForwardIterator __first, _ForwardIterator __last)
{
// concept requirements
typename iterator_traits<_ForwardIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- if (__first == __last)
- return __first;
- _ForwardIterator __result = __first;
- while (++__first != __last)
- if (*__result < *__first)
- __result = __first;
- return __result;
+ return _GLIBCXX_STD_A::__max_element(__first, __last,
+ __gnu_cxx::__ops::__iter_less_iter());
}
/**
* according to __comp.
*/
template<typename _ForwardIterator, typename _Compare>
- _ForwardIterator
+ inline _ForwardIterator
max_element(_ForwardIterator __first, _ForwardIterator __last,
_Compare __comp)
{
typename iterator_traits<_ForwardIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- if (__first == __last) return __first;
- _ForwardIterator __result = __first;
- while (++__first != __last)
- if (__comp(*__result, *__first))
- __result = __first;
- return __result;
+ return _GLIBCXX_STD_A::__max_element(__first, __last,
+ __gnu_cxx::__ops::__iter_comp_iter(__comp));
}
_GLIBCXX_END_NAMESPACE_ALGO
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