// Algorithm implementation -*- C++ -*-
-// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+// 2010, 2011
// Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
* purpose. It is provided "as is" without express or implied warranty.
*/
-/** @file stl_algo.h
+/** @file bits/stl_algo.h
* This is an internal header file, included by other library headers.
- * You should not attempt to use it directly.
+ * Do not attempt to use it directly. @headername{algorithm}
*/
#ifndef _STL_ALGO_H
#include <bits/stl_heap.h>
#include <bits/stl_tempbuf.h> // for _Temporary_buffer
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+#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(std)
-
- /**
- * @brief Find the median of three values.
- * @param a A value.
- * @param b A value.
- * @param c A value.
- * @return One of @p a, @p b or @p c.
- *
- * If @c {l,m,n} is some convolution of @p {a,b,c} such that @c l<=m<=n
- * then the value returned will be @c m.
- * This is an SGI extension.
- * @ingroup SGIextensions
- */
- template<typename _Tp>
- inline const _Tp&
- __median(const _Tp& __a, const _Tp& __b, const _Tp& __c)
- {
- // concept requirements
- __glibcxx_function_requires(_LessThanComparableConcept<_Tp>)
- if (__a < __b)
- if (__b < __c)
- return __b;
- else if (__a < __c)
- return __c;
- else
- return __a;
- else if (__a < __c)
- return __a;
- else if (__b < __c)
- return __c;
- else
- return __b;
- }
-
- /**
- * @brief Find the median of three values using a predicate for comparison.
- * @param a A value.
- * @param b A value.
- * @param c A value.
- * @param comp A binary predicate.
- * @return One of @p a, @p b or @p c.
- *
- * If @c {l,m,n} is some convolution of @p {a,b,c} such that @p comp(l,m)
- * and @p comp(m,n) are both true then the value returned will be @c m.
- * This is an SGI extension.
- * @ingroup SGIextensions
- */
- template<typename _Tp, typename _Compare>
- inline const _Tp&
- __median(const _Tp& __a, const _Tp& __b, const _Tp& __c, _Compare __comp)
- {
- // concept requirements
- __glibcxx_function_requires(_BinaryFunctionConcept<_Compare, bool,
- _Tp, _Tp>)
- if (__comp(__a, __b))
- if (__comp(__b, __c))
- return __b;
- else if (__comp(__a, __c))
- return __c;
- else
- return __a;
- else if (__comp(__a, __c))
- return __a;
- else if (__comp(__b, __c))
- return __c;
- else
- return __b;
- }
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
/// Swaps the median value of *__a, *__b and *__c to *__a
template<typename _Iterator>
_Integer __count, const _Tp& __val,
std::forward_iterator_tag)
{
- __first = _GLIBCXX_STD_P::find(__first, __last, __val);
+ __first = _GLIBCXX_STD_A::find(__first, __last, __val);
while (__first != __last)
{
typename iterator_traits<_ForwardIterator>::difference_type
return __first;
if (__i == __last)
return __last;
- __first = _GLIBCXX_STD_P::find(++__i, __last, __val);
+ __first = _GLIBCXX_STD_A::find(++__i, __last, __val);
}
return __last;
}
while (1)
{
_ForwardIterator1 __new_result
- = _GLIBCXX_STD_P::search(__first1, __last1, __first2, __last2);
+ = _GLIBCXX_STD_A::search(__first1, __last1, __first2, __last2);
if (__new_result == __last1)
return __result;
else
while (1)
{
_ForwardIterator1 __new_result
- = _GLIBCXX_STD_P::search(__first1, __last1, __first2,
+ = _GLIBCXX_STD_A::search(__first1, __last1, __first2,
__last2, __comp);
if (__new_result == __last1)
return __result;
_RevIterator1 __rlast1(__first1);
_RevIterator2 __rlast2(__first2);
- _RevIterator1 __rresult = _GLIBCXX_STD_P::search(_RevIterator1(__last1),
+ _RevIterator1 __rresult = _GLIBCXX_STD_A::search(_RevIterator1(__last1),
__rlast1,
_RevIterator2(__last2),
__rlast2);
/**
* @brief Find last matching subsequence in a sequence.
* @ingroup non_mutating_algorithms
- * @param first1 Start of range to search.
- * @param last1 End of range to search.
- * @param first2 Start of sequence to match.
- * @param last2 End of sequence to match.
+ * @param __first1 Start of range to search.
+ * @param __last1 End of range to search.
+ * @param __first2 Start of sequence to match.
+ * @param __last2 End of sequence to match.
* @return The last iterator @c i in the range
- * @p [first1,last1-(last2-first2)) such that @c *(i+N) == @p *(first2+N)
- * for each @c N in the range @p [0,last2-first2), or @p last1 if no
- * such iterator exists.
+ * @p [__first1,__last1-(__last2-__first2)) such that @c *(i+N) ==
+ * @p *(__first2+N) for each @c N in the range @p
+ * [0,__last2-__first2), or @p __last1 if no such iterator exists.
*
- * Searches the range @p [first1,last1) for a sub-sequence that compares
- * equal value-by-value with the sequence given by @p [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).
+ * Searches the range @p [__first1,__last1) for a sub-sequence that
+ * compares equal value-by-value with the sequence given by @p
+ * [__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).
*
- * Because the sub-sequence must lie completely within the range
- * @p [first1,last1) it must start at a position less than
- * @p last1-(last2-first2) where @p last2-first2 is the length of the
- * sub-sequence.
- * This means that the returned iterator @c i will be in the range
- * @p [first1,last1-(last2-first2))
+ * Because the sub-sequence must lie completely within the range @p
+ * [__first1,__last1) it must start at a position less than @p
+ * __last1-(__last2-__first2) where @p __last2-__first2 is the
+ * length of the sub-sequence. This means that the returned
+ * iterator @c i will be in the range @p
+ * [__first1,__last1-(__last2-__first2))
*/
template<typename _ForwardIterator1, typename _ForwardIterator2>
inline _ForwardIterator1
/**
* @brief Find last matching subsequence in a sequence using a predicate.
* @ingroup non_mutating_algorithms
- * @param first1 Start of range to search.
- * @param last1 End of range to search.
- * @param first2 Start of sequence to match.
- * @param last2 End of sequence to match.
- * @param comp The predicate to use.
- * @return The last iterator @c i in the range
- * @p [first1,last1-(last2-first2)) such that @c predicate(*(i+N), @p
- * (first2+N)) is true for each @c N in the range @p [0,last2-first2), or
- * @p last1 if no such iterator exists.
+ * @param __first1 Start of range to search.
+ * @param __last1 End of range to search.
+ * @param __first2 Start of sequence to match.
+ * @param __last2 End of sequence to match.
+ * @param __comp The predicate to use.
+ * @return The last iterator @c i in the range @p
+ * [__first1,__last1-(__last2-__first2)) such that @c
+ * predicate(*(i+N), @p (__first2+N)) is true for each @c N in the
+ * range @p [0,__last2-__first2), or @p __last1 if no such iterator
+ * exists.
*
- * Searches the range @p [first1,last1) for a sub-sequence that compares
- * equal value-by-value with the sequence given by @p [first2,last2) using
- * comp as a predicate 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).
+ * Searches the range @p [__first1,__last1) for a sub-sequence that
+ * compares equal value-by-value with the sequence given by @p
+ * [__first2,__last2) using comp as a predicate 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).
*
- * Because the sub-sequence must lie completely within the range
- * @p [first1,last1) it must start at a position less than
- * @p last1-(last2-first2) where @p last2-first2 is the length of the
- * sub-sequence.
- * This means that the returned iterator @c i will be in the range
- * @p [first1,last1-(last2-first2))
+ * Because the sub-sequence must lie completely within the range @p
+ * [__first1,__last1) it must start at a position less than @p
+ * __last1-(__last2-__first2) where @p __last2-__first2 is the
+ * length of the sub-sequence. This means that the returned
+ * iterator @c i will be in the range @p
+ * [__first1,__last1-(__last2-__first2))
*/
template<typename _ForwardIterator1, typename _ForwardIterator2,
typename _BinaryPredicate>
* @brief Checks that a predicate is true for all the elements
* of a sequence.
* @ingroup non_mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param pred A predicate.
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __pred A predicate.
* @return True if the check is true, false otherwise.
*
- * Returns true if @p pred is true for each element in the range
- * @p [first,last), and false otherwise.
+ * Returns true if @p __pred is true for each element in the range
+ * @p [__first,__last), and false otherwise.
*/
template<typename _InputIterator, typename _Predicate>
inline bool
* @brief Checks that a predicate is false for all the elements
* of a sequence.
* @ingroup non_mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param pred A predicate.
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __pred A predicate.
* @return True if the check is true, false otherwise.
*
- * Returns true if @p pred is false for each element in the range
- * @p [first,last), and false otherwise.
+ * Returns true if @p __pred is false for each element in the range
+ * @p [__first,__last), and false otherwise.
*/
template<typename _InputIterator, typename _Predicate>
inline bool
none_of(_InputIterator __first, _InputIterator __last, _Predicate __pred)
- { return __last == _GLIBCXX_STD_P::find_if(__first, __last, __pred); }
+ { return __last == _GLIBCXX_STD_A::find_if(__first, __last, __pred); }
/**
* @brief Checks that a predicate is false for at least an element
* of a sequence.
* @ingroup non_mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param pred A predicate.
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __pred A predicate.
* @return True if the check is true, false otherwise.
*
- * Returns true if an element exists in the range @p [first,last) such that
- * @p pred is true, and false otherwise.
+ * Returns true if an element exists in the range @p
+ * [__first,__last) such that @p __pred is true, and false
+ * otherwise.
*/
template<typename _InputIterator, typename _Predicate>
inline bool
* @brief Find the first element in a sequence for which a
* predicate is false.
* @ingroup non_mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param pred A predicate.
- * @return The first iterator @c i in the range @p [first,last)
- * such that @p pred(*i) is false, or @p last if no such iterator exists.
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __pred A predicate.
+ * @return The first iterator @c i in the range @p [__first,__last)
+ * such that @p __pred(*i) is false, or @p __last if no such iterator exists.
*/
template<typename _InputIterator, typename _Predicate>
inline _InputIterator
/**
* @brief Checks whether the sequence is partitioned.
* @ingroup mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param pred A predicate.
- * @return True if the range @p [first,last) is partioned by @p pred,
- * i.e. if all elements that satisfy @p pred appear before those that
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __pred A predicate.
+ * @return True if the range @p [__first,__last) is partioned by @p __pred,
+ * i.e. if all elements that satisfy @p __pred appear before those that
* do not.
*/
template<typename _InputIterator, typename _Predicate>
/**
* @brief Find the partition point of a partitioned range.
* @ingroup mutating_algorithms
- * @param first An iterator.
- * @param last Another iterator.
- * @param pred A predicate.
- * @return An iterator @p mid such that @p all_of(first, mid, pred)
- * and @p none_of(mid, last, pred) are both true.
+ * @param __first An iterator.
+ * @param __last Another iterator.
+ * @param __pred A predicate.
+ * @return An iterator @p mid such that @p all_of(__first, mid, __pred)
+ * and @p none_of(mid, __last, __pred) are both true.
*/
template<typename _ForwardIterator, typename _Predicate>
_ForwardIterator
/**
* @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.
+ * @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 to @p value
- * to the range beginning at @p result.
- * remove_copy() is stable, so the relative order of elements that are
- * copied is unchanged.
+ * Copies each element in the range @p [__first,__last) not equal
+ * to @p __value to the range beginning at @p __result.
+ * remove_copy() is stable, so the relative order of elements that
+ * are copied is unchanged.
*/
template<typename _InputIterator, typename _OutputIterator, typename _Tp>
_OutputIterator
/**
* @brief Copy a sequence, removing elements for which a predicate is true.
* @ingroup mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param result An output iterator.
- * @param pred A predicate.
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __result An output iterator.
+ * @param __pred A predicate.
* @return An iterator designating the end of the resulting sequence.
*
- * Copies each element in the range @p [first,last) for which
- * @p pred returns false to the range beginning at @p result.
+ * Copies each element in the range @p [__first,__last) for which
+ * @p __pred returns false to the range beginning at @p __result.
*
* remove_copy_if() is stable, so the relative order of elements that are
* copied is unchanged.
/**
* @brief Copy the elements of a sequence for which a predicate is true.
* @ingroup mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param result An output iterator.
- * @param pred A predicate.
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __result An output iterator.
+ * @param __pred A predicate.
* @return An iterator designating the end of the resulting sequence.
*
- * Copies each element in the range @p [first,last) for which
- * @p pred returns true to the range beginning at @p result.
+ * Copies each element in the range @p [__first,__last) for which
+ * @p __pred returns true to the range beginning at @p __result.
*
* copy_if() is stable, so the relative order of elements that are
* copied is unchanged.
__copy_n(_InputIterator __first, _Size __n,
_OutputIterator __result, input_iterator_tag)
{
- for (; __n > 0; --__n)
+ if (__n > 0)
{
- *__result = *__first;
- ++__first;
- ++__result;
+ while (true)
+ {
+ *__result = *__first;
+ ++__result;
+ if (--__n > 0)
+ ++__first;
+ else
+ break;
+ }
}
return __result;
}
/**
* @brief Copies the range [first,first+n) into [result,result+n).
* @ingroup mutating_algorithms
- * @param first An input iterator.
- * @param n The number of elements to copy.
- * @param result An output iterator.
+ * @param __first An input iterator.
+ * @param __n The number of elements to copy.
+ * @param __result An output iterator.
* @return result+n.
*
* This inline function will boil down to a call to @c memmove whenever
* @brief Copy the elements of a sequence to separate output sequences
* depending on the truth value of a predicate.
* @ingroup mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param out_true An output iterator.
- * @param out_false An output iterator.
- * @param pred A predicate.
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __out_true An output iterator.
+ * @param __out_false An output iterator.
+ * @param __pred A predicate.
* @return A pair designating the ends of the resulting sequences.
*
- * Copies each element in the range @p [first,last) for which
- * @p pred returns true to the range beginning at @p out_true
- * and each element for which @p pred returns false to @p out_false.
+ * Copies each element in the range @p [__first,__last) for which
+ * @p __pred returns true to the range beginning at @p out_true
+ * and each element for which @p __pred returns false to @p __out_false.
*/
template<typename _InputIterator, typename _OutputIterator1,
typename _OutputIterator2, typename _Predicate>
/**
* @brief Remove elements from a sequence.
* @ingroup mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param value The value to be removed.
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __value The value to be removed.
* @return An iterator designating the end of the resulting sequence.
*
- * All elements equal to @p value are removed from the range
- * @p [first,last).
+ * All elements equal to @p __value are removed from the range
+ * @p [__first,__last).
*
* remove() is stable, so the relative order of elements that are
* not removed is unchanged.
*
- * Elements between the end of the resulting sequence and @p last
+ * Elements between the end of the resulting sequence and @p __last
* are still present, but their value is unspecified.
*/
template<typename _ForwardIterator, typename _Tp>
typename iterator_traits<_ForwardIterator>::value_type, _Tp>)
__glibcxx_requires_valid_range(__first, __last);
- __first = _GLIBCXX_STD_P::find(__first, __last, __value);
+ __first = _GLIBCXX_STD_A::find(__first, __last, __value);
if(__first == __last)
return __first;
_ForwardIterator __result = __first;
/**
* @brief Remove elements from a sequence using a predicate.
* @ingroup mutating_algorithms
- * @param first A forward iterator.
- * @param last A forward iterator.
- * @param pred A predicate.
+ * @param __first A forward iterator.
+ * @param __last A forward iterator.
+ * @param __pred A predicate.
* @return An iterator designating the end of the resulting sequence.
*
- * All elements for which @p pred returns true are removed from the range
- * @p [first,last).
+ * All elements for which @p __pred returns true are removed from the range
+ * @p [__first,__last).
*
* remove_if() is stable, so the relative order of elements that are
* not removed is unchanged.
*
- * Elements between the end of the resulting sequence and @p last
+ * Elements between the end of the resulting sequence and @p __last
* are still present, but their value is unspecified.
*/
template<typename _ForwardIterator, typename _Predicate>
typename iterator_traits<_ForwardIterator>::value_type>)
__glibcxx_requires_valid_range(__first, __last);
- __first = _GLIBCXX_STD_P::find_if(__first, __last, __pred);
+ __first = _GLIBCXX_STD_A::find_if(__first, __last, __pred);
if(__first == __last)
return __first;
_ForwardIterator __result = __first;
/**
* @brief Remove consecutive duplicate values from a sequence.
* @ingroup mutating_algorithms
- * @param first A forward iterator.
- * @param last A forward iterator.
+ * @param __first A forward iterator.
+ * @param __last A forward iterator.
* @return An iterator designating the end of the resulting sequence.
*
* Removes all but the first element from each group of consecutive
* values that compare equal.
* unique() is stable, so the relative order of elements that are
* not removed is unchanged.
- * Elements between the end of the resulting sequence and @p last
+ * Elements between the end of the resulting sequence and @p __last
* are still present, but their value is unspecified.
*/
template<typename _ForwardIterator>
__glibcxx_requires_valid_range(__first, __last);
// Skip the beginning, if already unique.
- __first = _GLIBCXX_STD_P::adjacent_find(__first, __last);
+ __first = _GLIBCXX_STD_A::adjacent_find(__first, __last);
if (__first == __last)
return __last;
/**
* @brief Remove consecutive values from a sequence using a predicate.
* @ingroup mutating_algorithms
- * @param first A forward iterator.
- * @param last A forward iterator.
- * @param binary_pred A binary predicate.
+ * @param __first A forward iterator.
+ * @param __last A forward iterator.
+ * @param __binary_pred A binary predicate.
* @return An iterator designating the end of the resulting sequence.
*
* Removes all but the first element from each group of consecutive
- * values for which @p binary_pred returns true.
+ * values for which @p __binary_pred returns true.
* unique() is stable, so the relative order of elements that are
* not removed is unchanged.
- * Elements between the end of the resulting sequence and @p last
+ * Elements between the end of the resulting sequence and @p __last
* are still present, but their value is unspecified.
*/
template<typename _ForwardIterator, typename _BinaryPredicate>
__glibcxx_requires_valid_range(__first, __last);
// Skip the beginning, if already unique.
- __first = _GLIBCXX_STD_P::adjacent_find(__first, __last, __binary_pred);
+ __first = _GLIBCXX_STD_A::adjacent_find(__first, __last, __binary_pred);
if (__first == __last)
return __last;
/**
* @brief Reverse a sequence.
* @ingroup mutating_algorithms
- * @param first A bidirectional iterator.
- * @param last A bidirectional iterator.
+ * @param __first A bidirectional iterator.
+ * @param __last A bidirectional iterator.
* @return reverse() returns no value.
*
- * Reverses the order of the elements in the range @p [first,last),
+ * Reverses the order of the elements in the range @p [__first,__last),
* so that the first element becomes the last etc.
- * For every @c i such that @p 0<=i<=(last-first)/2), @p reverse()
- * swaps @p *(first+i) and @p *(last-(i+1))
+ * For every @c i such that @p 0<=i<=(__last-__first)/2), @p reverse()
+ * swaps @p *(__first+i) and @p *(__last-(i+1))
*/
template<typename _BidirectionalIterator>
inline void
/**
* @brief Copy a sequence, reversing its elements.
* @ingroup mutating_algorithms
- * @param first A bidirectional iterator.
- * @param last A bidirectional iterator.
- * @param result An output iterator.
+ * @param __first A bidirectional iterator.
+ * @param __last A bidirectional iterator.
+ * @param __result An output iterator.
* @return An iterator designating the end of the resulting sequence.
*
- * Copies the elements in the range @p [first,last) to the 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).
- * The ranges @p [first,last) and @p [result,result+(last-first))
- * must not overlap.
+ * Copies the elements in the range @p [__first,__last) to the
+ * 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).
+ * The ranges @p [__first,__last) and @p
+ * [__result,__result+(__last-__first)) must not overlap.
*/
template<typename _BidirectionalIterator, typename _OutputIterator>
_OutputIterator
/**
* @brief Rotate the elements of a sequence.
* @ingroup mutating_algorithms
- * @param first A forward iterator.
- * @param middle A forward iterator.
- * @param last A forward iterator.
+ * @param __first A forward iterator.
+ * @param __middle A forward iterator.
+ * @param __last A forward iterator.
* @return Nothing.
*
- * Rotates the elements of the range @p [first,last) by @p (middle-first)
- * positions so that the element at @p middle is moved to @p first, the
- * element at @p middle+1 is moved to @first+1 and so on for each element
- * in the range @p [first,last).
+ * Rotates the elements of the range @p [__first,__last) by
+ * @p (__middle - __first) positions so that the element at @p __middle
+ * is moved to @p __first, the element at @p __middle+1 is moved to
+ * @p __first+1 and so on for each element in the range
+ * @p [__first,__last).
*
- * This effectively swaps the ranges @p [first,middle) and
- * @p [middle,last).
+ * This effectively swaps the ranges @p [__first,__middle) and
+ * @p [__middle,__last).
*
- * Performs @p *(first+(n+(last-middle))%(last-first))=*(first+n) for
- * each @p n in the range @p [0,last-first).
+ * Performs
+ * @p *(__first+(n+(__last-__middle))%(__last-__first))=*(__first+n)
+ * for each @p n in the range @p [0,__last-__first).
*/
template<typename _ForwardIterator>
inline void
/**
* @brief Copy a sequence, rotating its elements.
* @ingroup mutating_algorithms
- * @param first A forward iterator.
- * @param middle A forward iterator.
- * @param last A forward iterator.
- * @param result An output iterator.
+ * @param __first A forward iterator.
+ * @param __middle A forward iterator.
+ * @param __last A forward iterator.
+ * @param __result An output iterator.
* @return An iterator designating the end of the resulting sequence.
*
- * Copies the elements of the range @p [first,last) to the range
- * beginning at @result, rotating the copied elements by @p (middle-first)
- * positions so that the element at @p middle is moved to @p result, the
- * element at @p middle+1 is moved to @result+1 and so on for each element
- * in the range @p [first,last).
+ * Copies the elements of the range @p [__first,__last) to the
+ * range beginning at @result, rotating the copied elements by
+ * @p (__middle-__first) positions so that the element at @p __middle
+ * is moved to @p __result, the element at @p __middle+1 is moved
+ * to @p __result+1 and so on for each element in the range @p
+ * [__first,__last).
*
- * Performs @p *(result+(n+(last-middle))%(last-first))=*(first+n) for
- * each @p n in the range @p [0,last-first).
+ * Performs
+ * @p *(__result+(n+(__last-__middle))%(__last-__first))=*(__first+n)
+ * for each @p n in the range @p [0,__last-__first).
*/
template<typename _ForwardIterator, typename _OutputIterator>
_OutputIterator
* @brief Move elements for which a predicate is true to the beginning
* of a sequence, preserving relative ordering.
* @ingroup mutating_algorithms
- * @param first A forward iterator.
- * @param last A forward iterator.
- * @param pred A predicate functor.
- * @return An iterator @p middle such that @p pred(i) is true for each
+ * @param __first A forward iterator.
+ * @param __last A forward iterator.
+ * @param __pred A predicate functor.
+ * @return An iterator @p middle such that @p __pred(i) is true for each
* iterator @p i in the range @p [first,middle) and false for each @p i
* in the range @p [middle,last).
*
* Performs the same function as @p partition() with the additional
* guarantee that the relative ordering of elements in each group is
* preserved, so any two elements @p x and @p y in the range
- * @p [first,last) such that @p pred(x)==pred(y) will have the same
+ * @p [__first,__last) such that @p __pred(x)==__pred(y) will have the same
* relative ordering after calling @p stable_partition().
*/
template<typename _ForwardIterator, typename _Predicate>
/**
* @brief Copy the smallest elements of a sequence.
* @ingroup sorting_algorithms
- * @param first An iterator.
- * @param last Another iterator.
- * @param result_first A random-access iterator.
- * @param result_last Another random-access iterator.
+ * @param __first An iterator.
+ * @param __last Another iterator.
+ * @param __result_first A random-access iterator.
+ * @param __result_last Another random-access iterator.
* @return An iterator indicating the end of the resulting sequence.
*
- * Copies and sorts the smallest N values from the range @p [first,last)
- * to the range beginning at @p result_first, where the number of
- * elements to be copied, @p N, is the smaller of @p (last-first) and
- * @p (result_last-result_first).
- * After the sort if @p i and @j are iterators in the range
- * @p [result_first,result_first+N) such that @i precedes @j then
- * @p *j<*i is false.
- * The value returned is @p result_first+N.
+ * Copies and sorts the smallest N values from the range @p [__first,__last)
+ * to the range beginning at @p __result_first, where the number of
+ * elements to be copied, @p N, is the smaller of @p (__last-__first) and
+ * @p (__result_last-__result_first).
+ * After the sort if @e i and @e j are iterators in the range
+ * @p [__result_first,__result_first+N) such that i precedes j then
+ * *j<*i is false.
+ * The value returned is @p __result_first+N.
*/
template<typename _InputIterator, typename _RandomAccessIterator>
_RandomAccessIterator
* @brief Copy the smallest elements of a sequence using a predicate for
* comparison.
* @ingroup sorting_algorithms
- * @param first An input iterator.
- * @param last Another input iterator.
- * @param result_first A random-access iterator.
- * @param result_last Another random-access iterator.
- * @param comp A comparison functor.
+ * @param __first An input iterator.
+ * @param __last Another input iterator.
+ * @param __result_first A random-access iterator.
+ * @param __result_last Another random-access iterator.
+ * @param __comp A comparison functor.
* @return An iterator indicating the end of the resulting sequence.
*
- * Copies and sorts the smallest N values from the range @p [first,last)
+ * Copies and sorts the smallest N values from the range @p [__first,__last)
* to the range beginning at @p result_first, where the number of
- * elements to be copied, @p N, is the smaller of @p (last-first) and
- * @p (result_last-result_first).
- * After the sort if @p i and @j are iterators in the range
- * @p [result_first,result_first+N) such that @i precedes @j then
- * @p comp(*j,*i) is false.
- * The value returned is @p result_first+N.
+ * elements to be copied, @p N, is the smaller of @p (__last-__first) and
+ * @p (__result_last-__result_first).
+ * After the sort if @e i and @e j are iterators in the range
+ * @p [__result_first,__result_first+N) such that i precedes j then
+ * @p __comp(*j,*i) is false.
+ * The value returned is @p __result_first+N.
*/
template<typename _InputIterator, typename _RandomAccessIterator, typename _Compare>
_RandomAccessIterator
{
if (__depth_limit == 0)
{
- _GLIBCXX_STD_P::partial_sort(__first, __last, __last);
+ _GLIBCXX_STD_A::partial_sort(__first, __last, __last);
return;
}
--__depth_limit;
{
if (__depth_limit == 0)
{
- _GLIBCXX_STD_P::partial_sort(__first, __last, __last, __comp);
+ _GLIBCXX_STD_A::partial_sort(__first, __last, __last, __comp);
return;
}
--__depth_limit;
}
}
- /// This is a helper function for the sort routines. Precondition: __n > 0.
- template<typename _Size>
- inline _Size
- __lg(_Size __n)
- {
- _Size __k;
- for (__k = 0; __n != 0; __n >>= 1)
- ++__k;
- return __k - 1;
- }
-
- inline int
- __lg(int __n)
- { return sizeof(int) * __CHAR_BIT__ - 1 - __builtin_clz(__n); }
-
- inline long
- __lg(long __n)
- { return sizeof(long) * __CHAR_BIT__ - 1 - __builtin_clzl(__n); }
-
- inline long long
- __lg(long long __n)
- { return sizeof(long long) * __CHAR_BIT__ - 1 - __builtin_clzll(__n); }
-
// sort
template<typename _RandomAccessIterator, typename _Size>
// nth_element
- /**
- * @brief Finds the first position in which @a val could be inserted
- * without changing the ordering.
- * @param first An iterator.
- * @param last Another iterator.
- * @param val The search term.
- * @return An iterator pointing to the first element "not less
- * than" @a val, or end() if every element is less than
- * @a val.
- * @ingroup binary_search_algorithms
- */
- template<typename _ForwardIterator, typename _Tp>
- _ForwardIterator
- lower_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<_ValueType, _Tp>)
- __glibcxx_requires_partitioned_lower(__first, __last, __val);
-
- _DistanceType __len = std::distance(__first, __last);
- _DistanceType __half;
- _ForwardIterator __middle;
-
- while (__len > 0)
- {
- __half = __len >> 1;
- __middle = __first;
- std::advance(__middle, __half);
- if (*__middle < __val)
- {
- __first = __middle;
- ++__first;
- __len = __len - __half - 1;
- }
- else
- __len = __half;
- }
- return __first;
- }
+ // lower_bound moved to stl_algobase.h
/**
- * @brief Finds the first position in which @a val could be inserted
+ * @brief Finds the first position in which @p __val could be inserted
* without changing the ordering.
* @ingroup binary_search_algorithms
- * @param first An iterator.
- * @param last Another iterator.
- * @param val The search term.
- * @param comp A functor to use for comparisons.
- * @return An iterator pointing to the first element "not less than" @a val,
- * or end() if every element is less than @a val.
+ * @param __first An iterator.
+ * @param __last Another iterator.
+ * @param __val The search term.
+ * @param __comp A functor to use for comparisons.
+ * @return An iterator pointing to the first element <em>not less
+ * than</em> @p __val, or end() if every element is less
+ * than @p __val.
* @ingroup binary_search_algorithms
*
* The comparison function should have the same effects on ordering as
__val, __comp);
_DistanceType __len = std::distance(__first, __last);
- _DistanceType __half;
- _ForwardIterator __middle;
while (__len > 0)
{
- __half = __len >> 1;
- __middle = __first;
+ _DistanceType __half = __len >> 1;
+ _ForwardIterator __middle = __first;
std::advance(__middle, __half);
if (__comp(*__middle, __val))
{
}
/**
- * @brief Finds the last position in which @a val could be inserted
+ * @brief Finds the last position in which @p __val could be inserted
* without changing the ordering.
* @ingroup binary_search_algorithms
- * @param first An iterator.
- * @param last Another iterator.
- * @param val The search term.
- * @return An iterator pointing to the first element greater than @a val,
- * or end() if no elements are greater than @a val.
+ * @param __first An iterator.
+ * @param __last Another iterator.
+ * @param __val The search term.
+ * @return An iterator pointing to the first element greater than @p __val,
+ * or end() if no elements are greater than @p __val.
* @ingroup binary_search_algorithms
*/
template<typename _ForwardIterator, typename _Tp>
__glibcxx_requires_partitioned_upper(__first, __last, __val);
_DistanceType __len = std::distance(__first, __last);
- _DistanceType __half;
- _ForwardIterator __middle;
while (__len > 0)
{
- __half = __len >> 1;
- __middle = __first;
+ _DistanceType __half = __len >> 1;
+ _ForwardIterator __middle = __first;
std::advance(__middle, __half);
if (__val < *__middle)
__len = __half;
}
/**
- * @brief Finds the last position in which @a val could be inserted
+ * @brief Finds the last position in which @p __val could be inserted
* without changing the ordering.
* @ingroup binary_search_algorithms
- * @param first An iterator.
- * @param last Another iterator.
- * @param val The search term.
- * @param comp A functor to use for comparisons.
- * @return An iterator pointing to the first element greater than @a val,
- * or end() if no elements are greater than @a val.
+ * @param __first An iterator.
+ * @param __last Another iterator.
+ * @param __val The search term.
+ * @param __comp A functor to use for comparisons.
+ * @return An iterator pointing to the first element greater than @p __val,
+ * or end() if no elements are greater than @p __val.
* @ingroup binary_search_algorithms
*
* The comparison function should have the same effects on ordering as
__val, __comp);
_DistanceType __len = std::distance(__first, __last);
- _DistanceType __half;
- _ForwardIterator __middle;
while (__len > 0)
{
- __half = __len >> 1;
- __middle = __first;
+ _DistanceType __half = __len >> 1;
+ _ForwardIterator __middle = __first;
std::advance(__middle, __half);
if (__comp(__val, *__middle))
__len = __half;
}
/**
- * @brief Finds the largest subrange in which @a val could be inserted
+ * @brief Finds the largest subrange in which @p __val could be inserted
* at any place in it without changing the ordering.
* @ingroup binary_search_algorithms
- * @param first An iterator.
- * @param last Another iterator.
- * @param val The search term.
+ * @param __first An iterator.
+ * @param __last Another iterator.
+ * @param __val The search term.
* @return An pair of iterators defining the subrange.
* @ingroup binary_search_algorithms
*
* This is equivalent to
* @code
- * std::make_pair(lower_bound(first, last, val),
- * upper_bound(first, last, val))
+ * std::make_pair(lower_bound(__first, __last, __val),
+ * upper_bound(__first, __last, __val))
* @endcode
* but does not actually call those functions.
*/
__glibcxx_requires_partitioned_upper(__first, __last, __val);
_DistanceType __len = std::distance(__first, __last);
- _DistanceType __half;
- _ForwardIterator __middle, __left, __right;
-
+
while (__len > 0)
{
- __half = __len >> 1;
- __middle = __first;
+ _DistanceType __half = __len >> 1;
+ _ForwardIterator __middle = __first;
std::advance(__middle, __half);
if (*__middle < __val)
{
__len = __half;
else
{
- __left = std::lower_bound(__first, __middle, __val);
+ _ForwardIterator __left = std::lower_bound(__first, __middle,
+ __val);
std::advance(__first, __len);
- __right = std::upper_bound(++__middle, __first, __val);
+ _ForwardIterator __right = std::upper_bound(++__middle, __first,
+ __val);
return pair<_ForwardIterator, _ForwardIterator>(__left, __right);
}
}
}
/**
- * @brief Finds the largest subrange in which @a val could be inserted
+ * @brief Finds the largest subrange in which @p __val could be inserted
* at any place in it without changing the ordering.
- * @param first An iterator.
- * @param last Another iterator.
- * @param val The search term.
- * @param comp A functor to use for comparisons.
+ * @param __first An iterator.
+ * @param __last Another iterator.
+ * @param __val The search term.
+ * @param __comp A functor to use for comparisons.
* @return An pair of iterators defining the subrange.
* @ingroup binary_search_algorithms
*
* This is equivalent to
* @code
- * std::make_pair(lower_bound(first, last, val, comp),
- * upper_bound(first, last, val, comp))
+ * std::make_pair(lower_bound(__first, __last, __val, __comp),
+ * upper_bound(__first, __last, __val, __comp))
* @endcode
* but does not actually call those functions.
*/
template<typename _ForwardIterator, typename _Tp, typename _Compare>
pair<_ForwardIterator, _ForwardIterator>
equal_range(_ForwardIterator __first, _ForwardIterator __last,
- const _Tp& __val,
- _Compare __comp)
+ const _Tp& __val, _Compare __comp)
{
typedef typename iterator_traits<_ForwardIterator>::value_type
_ValueType;
__val, __comp);
_DistanceType __len = std::distance(__first, __last);
- _DistanceType __half;
- _ForwardIterator __middle, __left, __right;
while (__len > 0)
{
- __half = __len >> 1;
- __middle = __first;
+ _DistanceType __half = __len >> 1;
+ _ForwardIterator __middle = __first;
std::advance(__middle, __half);
if (__comp(*__middle, __val))
{
__len = __half;
else
{
- __left = std::lower_bound(__first, __middle, __val, __comp);
+ _ForwardIterator __left = std::lower_bound(__first, __middle,
+ __val, __comp);
std::advance(__first, __len);
- __right = std::upper_bound(++__middle, __first, __val, __comp);
+ _ForwardIterator __right = std::upper_bound(++__middle, __first,
+ __val, __comp);
return pair<_ForwardIterator, _ForwardIterator>(__left, __right);
}
}
/**
* @brief Determines whether an element exists in a range.
* @ingroup binary_search_algorithms
- * @param first An iterator.
- * @param last Another iterator.
- * @param val The search term.
- * @return True if @a val (or its equivalent) is in [@a first,@a last ].
+ * @param __first An iterator.
+ * @param __last Another iterator.
+ * @param __val The search term.
+ * @return True if @p __val (or its equivalent) is in [@p
+ * __first,@p __last ].
*
- * Note that this does not actually return an iterator to @a val. For
+ * Note that this does not actually return an iterator to @p __val. For
* that, use std::find or a container's specialized find member functions.
*/
template<typename _ForwardIterator, typename _Tp>
/**
* @brief Determines whether an element exists in a range.
* @ingroup binary_search_algorithms
- * @param first An iterator.
- * @param last Another iterator.
- * @param val The search term.
- * @param comp A functor to use for comparisons.
- * @return True if @a val (or its equivalent) is in [@a first,@a last ].
+ * @param __first An iterator.
+ * @param __last Another iterator.
+ * @param __val The search term.
+ * @param __comp A functor to use for comparisons.
+ * @return True if @p __val (or its equivalent) is in @p [__first,__last].
*
- * Note that this does not actually return an iterator to @a val. For
+ * Note that this does not actually return an iterator to @p __val. For
* that, use std::find or a container's specialized find member functions.
*
* The comparison function should have the same effects on ordering as
// merge
- /// This is a helper function for the merge routines.
+ /// 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>
+ void
+ __move_merge_adaptive(_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;
+ }
+ if (__first1 != __last1)
+ _GLIBCXX_MOVE3(__first1, __last1, __result);
+ }
+
+ /// This is a helper function for the __merge_adaptive routines.
template<typename _BidirectionalIterator1, typename _BidirectionalIterator2,
typename _BidirectionalIterator3>
- _BidirectionalIterator3
- __merge_backward(_BidirectionalIterator1 __first1,
- _BidirectionalIterator1 __last1,
- _BidirectionalIterator2 __first2,
- _BidirectionalIterator2 __last2,
- _BidirectionalIterator3 __result)
+ void
+ __move_merge_adaptive_backward(_BidirectionalIterator1 __first1,
+ _BidirectionalIterator1 __last1,
+ _BidirectionalIterator2 __first2,
+ _BidirectionalIterator2 __last2,
+ _BidirectionalIterator3 __result)
{
if (__first1 == __last1)
- return std::copy_backward(__first2, __last2, __result);
- if (__first2 == __last2)
- return std::copy_backward(__first1, __last1, __result);
+ {
+ _GLIBCXX_MOVE_BACKWARD3(__first2, __last2, __result);
+ return;
+ }
+ else if (__first2 == __last2)
+ return;
+
--__last1;
--__last2;
while (true)
{
if (*__last2 < *__last1)
{
- *--__result = *__last1;
+ *--__result = _GLIBCXX_MOVE(*__last1);
if (__first1 == __last1)
- return std::copy_backward(__first2, ++__last2, __result);
+ {
+ _GLIBCXX_MOVE_BACKWARD3(__first2, ++__last2, __result);
+ return;
+ }
--__last1;
}
else
{
- *--__result = *__last2;
+ *--__result = _GLIBCXX_MOVE(*__last2);
if (__first2 == __last2)
- return std::copy_backward(__first1, ++__last1, __result);
+ return;
--__last2;
}
}
}
- /// This is a helper function for the merge routines.
+ /// This is a helper function for the __merge_adaptive routines.
template<typename _BidirectionalIterator1, typename _BidirectionalIterator2,
typename _BidirectionalIterator3, typename _Compare>
- _BidirectionalIterator3
- __merge_backward(_BidirectionalIterator1 __first1,
- _BidirectionalIterator1 __last1,
- _BidirectionalIterator2 __first2,
- _BidirectionalIterator2 __last2,
- _BidirectionalIterator3 __result,
- _Compare __comp)
+ void
+ __move_merge_adaptive_backward(_BidirectionalIterator1 __first1,
+ _BidirectionalIterator1 __last1,
+ _BidirectionalIterator2 __first2,
+ _BidirectionalIterator2 __last2,
+ _BidirectionalIterator3 __result,
+ _Compare __comp)
{
if (__first1 == __last1)
- return std::copy_backward(__first2, __last2, __result);
- if (__first2 == __last2)
- return std::copy_backward(__first1, __last1, __result);
+ {
+ _GLIBCXX_MOVE_BACKWARD3(__first2, __last2, __result);
+ return;
+ }
+ else if (__first2 == __last2)
+ return;
+
--__last1;
--__last2;
while (true)
{
if (__comp(*__last2, *__last1))
{
- *--__result = *__last1;
+ *--__result = _GLIBCXX_MOVE(*__last1);
if (__first1 == __last1)
- return std::copy_backward(__first2, ++__last2, __result);
+ {
+ _GLIBCXX_MOVE_BACKWARD3(__first2, ++__last2, __result);
+ return;
+ }
--__last1;
}
else
{
- *--__result = *__last2;
+ *--__result = _GLIBCXX_MOVE(*__last2);
if (__first2 == __last2)
- return std::copy_backward(__first1, ++__last1, __result);
+ return;
--__last2;
}
}
_BidirectionalIterator2 __buffer_end;
if (__len1 > __len2 && __len2 <= __buffer_size)
{
- __buffer_end = _GLIBCXX_MOVE3(__middle, __last, __buffer);
- _GLIBCXX_MOVE_BACKWARD3(__first, __middle, __last);
- return _GLIBCXX_MOVE3(__buffer, __buffer_end, __first);
+ if (__len2)
+ {
+ __buffer_end = _GLIBCXX_MOVE3(__middle, __last, __buffer);
+ _GLIBCXX_MOVE_BACKWARD3(__first, __middle, __last);
+ return _GLIBCXX_MOVE3(__buffer, __buffer_end, __first);
+ }
+ else
+ return __first;
}
else if (__len1 <= __buffer_size)
{
- __buffer_end = _GLIBCXX_MOVE3(__first, __middle, __buffer);
- _GLIBCXX_MOVE3(__middle, __last, __first);
- return _GLIBCXX_MOVE_BACKWARD3(__buffer, __buffer_end, __last);
+ if (__len1)
+ {
+ __buffer_end = _GLIBCXX_MOVE3(__first, __middle, __buffer);
+ _GLIBCXX_MOVE3(__middle, __last, __first);
+ return _GLIBCXX_MOVE_BACKWARD3(__buffer, __buffer_end, __last);
+ }
+ else
+ return __last;
}
else
{
if (__len1 <= __len2 && __len1 <= __buffer_size)
{
_Pointer __buffer_end = _GLIBCXX_MOVE3(__first, __middle, __buffer);
- _GLIBCXX_STD_P::merge(_GLIBCXX_MAKE_MOVE_ITERATOR(__buffer),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__buffer_end),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__middle),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__last),
- __first);
+ std::__move_merge_adaptive(__buffer, __buffer_end, __middle, __last,
+ __first);
}
else if (__len2 <= __buffer_size)
{
_Pointer __buffer_end = _GLIBCXX_MOVE3(__middle, __last, __buffer);
- std::__merge_backward(_GLIBCXX_MAKE_MOVE_ITERATOR(__first),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__middle),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__buffer),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__buffer_end),
- __last);
+ std::__move_merge_adaptive_backward(__first, __middle, __buffer,
+ __buffer_end, __last);
}
else
{
if (__len1 <= __len2 && __len1 <= __buffer_size)
{
_Pointer __buffer_end = _GLIBCXX_MOVE3(__first, __middle, __buffer);
- _GLIBCXX_STD_P::merge(_GLIBCXX_MAKE_MOVE_ITERATOR(__buffer),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__buffer_end),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__middle),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__last),
- __first, __comp);
+ std::__move_merge_adaptive(__buffer, __buffer_end, __middle, __last,
+ __first, __comp);
}
else if (__len2 <= __buffer_size)
{
_Pointer __buffer_end = _GLIBCXX_MOVE3(__middle, __last, __buffer);
- std::__merge_backward(_GLIBCXX_MAKE_MOVE_ITERATOR(__first),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__middle),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__buffer),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__buffer_end),
- __last,__comp);
+ std::__move_merge_adaptive_backward(__first, __middle, __buffer,
+ __buffer_end, __last, __comp);
}
else
{
/**
* @brief Merges two sorted ranges in place.
* @ingroup sorting_algorithms
- * @param first An iterator.
- * @param middle Another iterator.
- * @param last Another iterator.
+ * @param __first An iterator.
+ * @param __middle Another iterator.
+ * @param __last Another iterator.
* @return Nothing.
*
- * Merges two sorted and consecutive ranges, [first,middle) and
- * [middle,last), and puts the result in [first,last). The output will
- * be sorted. The sort is @e stable, that is, for equivalent
- * elements in the two ranges, elements from the first range will always
- * come before elements from the second.
+ * Merges two sorted and consecutive ranges, [__first,__middle) and
+ * [__middle,__last), and puts the result in [__first,__last). The
+ * output will be sorted. The sort is @e stable, that is, for
+ * equivalent elements in the two ranges, elements from the first
+ * range will always come before elements from the second.
*
- * If enough additional memory is available, this takes (last-first)-1
+ * If enough additional memory is available, this takes (__last-__first)-1
* comparisons. Otherwise an NlogN algorithm is used, where N is
- * distance(first,last).
+ * distance(__first,__last).
*/
template<typename _BidirectionalIterator>
void
/**
* @brief Merges two sorted ranges in place.
* @ingroup sorting_algorithms
- * @param first An iterator.
- * @param middle Another iterator.
- * @param last Another iterator.
- * @param comp A functor to use for comparisons.
+ * @param __first An iterator.
+ * @param __middle Another iterator.
+ * @param __last Another iterator.
+ * @param __comp A functor to use for comparisons.
* @return Nothing.
*
- * Merges two sorted and consecutive ranges, [first,middle) and
- * [middle,last), and puts the result in [first,last). The output will
+ * Merges two sorted and consecutive ranges, [__first,__middle) and
+ * [middle,last), and puts the result in [__first,__last). The output will
* be sorted. The sort is @e stable, that is, for equivalent
* elements in the two ranges, elements from the first range will always
* come before elements from the second.
*
- * If enough additional memory is available, this takes (last-first)-1
+ * If enough additional memory is available, this takes (__last-__first)-1
* comparisons. Otherwise an NlogN algorithm is used, where N is
- * distance(first,last).
+ * distance(__first,__last).
*
* The comparison function should have the same effects on ordering as
* the function used for the initial sort.
__comp);
}
+
+ /// This is a helper function for the __merge_sort_loop routines.
+ template<typename _InputIterator1, typename _InputIterator2,
+ typename _OutputIterator>
+ _OutputIterator
+ __move_merge(_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;
+ }
+ return _GLIBCXX_MOVE3(__first2, __last2,
+ _GLIBCXX_MOVE3(__first1, __last1,
+ __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
while (__last - __first >= __two_step)
{
- __result = _GLIBCXX_STD_P::merge(
- _GLIBCXX_MAKE_MOVE_ITERATOR(__first),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__first + __step_size),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__first + __step_size),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__first + __two_step),
- __result);
+ __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);
- _GLIBCXX_STD_P::merge(_GLIBCXX_MAKE_MOVE_ITERATOR(__first),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__first +
- __step_size),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__first +
- __step_size),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__last),
- __result);
+ std::__move_merge(__first, __first + __step_size,
+ __first + __step_size, __last, __result);
}
template<typename _RandomAccessIterator1, typename _RandomAccessIterator2,
while (__last - __first >= __two_step)
{
- __result = _GLIBCXX_STD_P::merge(
- _GLIBCXX_MAKE_MOVE_ITERATOR(__first),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__first + __step_size),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__first + __step_size),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__first + __two_step),
- __result, __comp);
+ __result = std::__move_merge(__first, __first + __step_size,
+ __first + __step_size,
+ __first + __two_step,
+ __result, __comp);
__first += __two_step;
}
__step_size = std::min(_Distance(__last - __first), __step_size);
- _GLIBCXX_STD_P::merge(_GLIBCXX_MAKE_MOVE_ITERATOR(__first),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__first +
- __step_size),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__first +
- __step_size),
- _GLIBCXX_MAKE_MOVE_ITERATOR(__last),
- __result, __comp);
+ std::__move_merge(__first,__first + __step_size,
+ __first + __step_size, __last, __result, __comp);
}
template<typename _RandomAccessIterator, typename _Distance>
/**
* @brief Determines whether all elements of a sequence exists in a range.
- * @param first1 Start of search range.
- * @param last1 End of search range.
- * @param first2 Start of sequence
- * @param last2 End of sequence.
- * @return True if each element in [first2,last2) is contained in order
- * within [first1,last1). False otherwise.
+ * @param __first1 Start of search range.
+ * @param __last1 End of search range.
+ * @param __first2 Start of sequence
+ * @param __last2 End of sequence.
+ * @return True if each element in [__first2,__last2) is contained in order
+ * within [__first1,__last1). False otherwise.
* @ingroup set_algorithms
*
- * This operation expects both [first1,last1) and [first2,last2) to be
- * sorted. Searches for the presence of each element in [first2,last2)
- * within [first1,last1). The iterators over each range only move forward,
- * so this is a linear algorithm. If an element in [first2,last2) is not
- * found before the search iterator reaches @a last2, false is returned.
+ * This operation expects both [__first1,__last1) and
+ * [__first2,__last2) to be sorted. Searches for the presence of
+ * each element in [__first2,__last2) within [__first1,__last1).
+ * The iterators over each range only move forward, so this is a
+ * linear algorithm. If an element in [__first2,__last2) is not
+ * found before the search iterator reaches @p __last2, false is
+ * returned.
*/
template<typename _InputIterator1, typename _InputIterator2>
bool
* @brief Determines whether all elements of a sequence exists in a range
* using comparison.
* @ingroup set_algorithms
- * @param first1 Start of search range.
- * @param last1 End of search range.
- * @param first2 Start of sequence
- * @param last2 End of sequence.
- * @param comp Comparison function to use.
- * @return True if each element in [first2,last2) is contained in order
- * within [first1,last1) according to comp. False otherwise.
- * @ingroup set_algorithms
+ * @param __first1 Start of search range.
+ * @param __last1 End of search range.
+ * @param __first2 Start of sequence
+ * @param __last2 End of sequence.
+ * @param __comp Comparison function to use.
+ * @return True if each element in [__first2,__last2) is contained
+ * in order within [__first1,__last1) according to comp. False
+ * otherwise. @ingroup set_algorithms
*
- * This operation expects both [first1,last1) and [first2,last2) to be
- * sorted. Searches for the presence of each element in [first2,last2)
- * within [first1,last1), using comp to decide. The iterators over each
- * range only move forward, so this is a linear algorithm. If an element
- * in [first2,last2) is not found before the search iterator reaches @a
- * last2, false is returned.
+ * This operation expects both [__first1,__last1) and
+ * [__first2,__last2) to be sorted. Searches for the presence of
+ * each element in [__first2,__last2) within [__first1,__last1),
+ * using comp to decide. The iterators over each range only move
+ * forward, so this is a linear algorithm. If an element in
+ * [__first2,__last2) is not found before the search iterator
+ * reaches @p __last2, false is returned.
*/
template<typename _InputIterator1, typename _InputIterator2,
typename _Compare>
// max_element
/**
- * @brief Permute range into the next "dictionary" ordering.
+ * @brief Permute range into the next @e dictionary ordering.
* @ingroup sorting_algorithms
- * @param first Start of range.
- * @param last End of range.
+ * @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 "dictionary" sorted
+ * 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.
}
/**
- * @brief Permute range into the next "dictionary" ordering using
+ * @brief Permute range into the next @e dictionary ordering using
* comparison functor.
* @ingroup sorting_algorithms
- * @param first Start of range.
- * @param last End of range.
- * @param comp A comparison functor.
+ * @param __first Start of range.
+ * @param __last End of range.
+ * @param __comp A comparison functor.
* @return False if wrapped to first permutation, true otherwise.
*
- * Treats all permutations of the range [first,last) as a set of
- * "dictionary" sorted sequences ordered by @a comp. Permutes the current
+ * Treats all permutations of the range [__first,__last) as a set of
+ * @e dictionary sorted sequences ordered by @p __comp. 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.
}
/**
- * @brief Permute range into the previous "dictionary" ordering.
+ * @brief Permute range into the previous @e dictionary ordering.
* @ingroup sorting_algorithms
- * @param first Start of range.
- * @param last End of range.
+ * @param __first Start of range.
+ * @param __last End of range.
* @return False if wrapped to last permutation, true otherwise.
*
- * Treats all permutations of the range as a set of "dictionary" sorted
+ * Treats all permutations of the range as a set of @e dictionary sorted
* sequences. Permutes the current sequence into the previous one of this
* set. Returns true if there are more sequences to generate. If the
* sequence is the smallest of the set, the largest is generated and false
}
/**
- * @brief Permute range into the previous "dictionary" ordering using
+ * @brief Permute range into the previous @e dictionary ordering using
* comparison functor.
* @ingroup sorting_algorithms
- * @param first Start of range.
- * @param last End of range.
- * @param comp A comparison functor.
+ * @param __first Start of range.
+ * @param __last End of range.
+ * @param __comp A comparison functor.
* @return False if wrapped to last permutation, true otherwise.
*
- * Treats all permutations of the range [first,last) as a set of
- * "dictionary" sorted sequences ordered by @a comp. Permutes the current
+ * Treats all permutations of the range [__first,__last) as a set of
+ * @e dictionary sorted sequences ordered by @p __comp. Permutes the current
* sequence into the previous one of this set. Returns true if there are
* more sequences to generate. If the sequence is the smallest of the set,
* the largest is generated and false returned.
/**
* @brief Copy a sequence, replacing each element of one value with another
* value.
- * @param first An input iterator.
- * @param last An input iterator.
- * @param result An output iterator.
- * @param old_value The value to be replaced.
- * @param new_value The replacement value.
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __result An output iterator.
+ * @param __old_value The value to be replaced.
+ * @param __new_value The replacement value.
* @return The end of the output sequence, @p result+(last-first).
*
- * Copies each element in the input range @p [first,last) to the
- * output range @p [result,result+(last-first)) replacing elements
- * equal to @p old_value with @p new_value.
+ * Copies each element in the input range @p [__first,__last) to the
+ * output range @p [__result,__result+(__last-__first)) replacing elements
+ * equal to @p __old_value with @p __new_value.
*/
template<typename _InputIterator, typename _OutputIterator, typename _Tp>
_OutputIterator
* @brief Copy a sequence, replacing each value for which a predicate
* returns true with another value.
* @ingroup mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param result An output iterator.
- * @param pred A predicate.
- * @param new_value The replacement value.
- * @return The end of the output sequence, @p result+(last-first).
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __result An output iterator.
+ * @param __pred A predicate.
+ * @param __new_value The replacement value.
+ * @return The end of the output sequence, @p __result+(__last-__first).
*
- * Copies each element in the range @p [first,last) to the range
- * @p [result,result+(last-first)) replacing elements for which
- * @p pred returns true with @p new_value.
+ * Copies each element in the range @p [__first,__last) to the range
+ * @p [__result,__result+(__last-__first)) replacing elements for which
+ * @p __pred returns true with @p __new_value.
*/
template<typename _InputIterator, typename _OutputIterator,
typename _Predicate, typename _Tp>
/**
* @brief Determines whether the elements of a sequence are sorted.
* @ingroup sorting_algorithms
- * @param first An iterator.
- * @param last Another iterator.
+ * @param __first An iterator.
+ * @param __last Another iterator.
* @return True if the elements are sorted, false otherwise.
*/
template<typename _ForwardIterator>
* @brief Determines whether the elements of a sequence are sorted
* according to a comparison functor.
* @ingroup sorting_algorithms
- * @param first An iterator.
- * @param last Another iterator.
- * @param comp A comparison functor.
+ * @param __first An iterator.
+ * @param __last Another iterator.
+ * @param __comp A comparison functor.
* @return True if the elements are sorted, false otherwise.
*/
template<typename _ForwardIterator, typename _Compare>
/**
* @brief Determines the end of a sorted sequence.
* @ingroup sorting_algorithms
- * @param first An iterator.
- * @param last Another iterator.
- * @return An iterator pointing to the last iterator i in [first, last)
- * for which the range [first, i) is sorted.
+ * @param __first An iterator.
+ * @param __last Another iterator.
+ * @return An iterator pointing to the last iterator i in [__first, __last)
+ * for which the range [__first, i) is sorted.
*/
template<typename _ForwardIterator>
_ForwardIterator
/**
* @brief Determines the end of a sorted sequence using comparison functor.
* @ingroup sorting_algorithms
- * @param first An iterator.
- * @param last Another iterator.
- * @param comp A comparison functor.
- * @return An iterator pointing to the last iterator i in [first, last)
- * for which the range [first, i) is sorted.
+ * @param __first An iterator.
+ * @param __last Another iterator.
+ * @param __comp A comparison functor.
+ * @return An iterator pointing to the last iterator i in [__first, __last)
+ * for which the range [__first, i) is sorted.
*/
template<typename _ForwardIterator, typename _Compare>
_ForwardIterator
/**
* @brief Determines min and max at once as an ordered pair.
* @ingroup sorting_algorithms
- * @param a A thing of arbitrary type.
- * @param b Another thing of arbitrary type.
- * @return A pair(b, a) if b is smaller than a, pair(a, b) otherwise.
+ * @param __a A thing of arbitrary type.
+ * @param __b Another thing of arbitrary type.
+ * @return A pair(__b, __a) if __b is smaller than __a, pair(__a,
+ * __b) otherwise.
*/
template<typename _Tp>
inline pair<const _Tp&, const _Tp&>
/**
* @brief Determines min and max at once as an ordered pair.
* @ingroup sorting_algorithms
- * @param a A thing of arbitrary type.
- * @param b Another thing of arbitrary type.
- * @param comp A @link comparison_functor comparison functor@endlink.
- * @return A pair(b, a) if b is smaller than a, pair(a, b) otherwise.
+ * @param __a A thing of arbitrary type.
+ * @param __b Another thing of arbitrary type.
+ * @param __comp A @link comparison_functors comparison functor @endlink.
+ * @return A pair(__b, __a) if __b is smaller than __a, pair(__a,
+ * __b) otherwise.
*/
template<typename _Tp, typename _Compare>
inline pair<const _Tp&, const _Tp&>
* @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.
+ * @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)
+ * [__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>
* @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.
- * @param comp Comparison functor.
+ * @param __first Start of range.
+ * @param __last End of range.
+ * @param __comp Comparison functor.
* @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)
+ * [__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, typename _Compare>
return std::make_pair(__min, __max);
}
- // N2722 + fixes.
+ // N2722 + DR 915.
template<typename _Tp>
inline _Tp
min(initializer_list<_Tp> __l)
std::minmax_element(__l.begin(), __l.end(), __comp);
return std::make_pair(*__p.first, *__p.second);
}
+
+ /**
+ * @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.
+ * @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)
+ * returns true; otherwise, returns false.
+ */
+ template<typename _ForwardIterator1, typename _ForwardIterator2>
+ bool
+ is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1,
+ _ForwardIterator2 __first2)
+ {
+ // Efficiently compare identical prefixes: O(N) if sequences
+ // have the same elements in the same order.
+ for (; __first1 != __last1; ++__first1, ++__first2)
+ if (!(*__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 != _GLIBCXX_STD_A::find(__first1, __scan, *__scan))
+ continue; // We've seen this one before.
+
+ auto __matches = std::count(__first2, __last2, *__scan);
+ if (0 == __matches
+ || std::count(__scan, __last1, *__scan) != __matches)
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * @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>
+ 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 (!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;
+
+ 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;
+ }
+
+#ifdef _GLIBCXX_USE_C99_STDINT_TR1
+ /**
+ * @brief Shuffle the elements of a sequence using a uniform random
+ * number generator.
+ * @ingroup mutating_algorithms
+ * @param __first A forward iterator.
+ * @param __last A forward iterator.
+ * @param __g A UniformRandomNumberGenerator (26.5.1.3).
+ * @return Nothing.
+ *
+ * Reorders the elements in the range @p [__first,__last) using @p __g to
+ * provide random numbers.
+ */
+ template<typename _RandomAccessIterator,
+ typename _UniformRandomNumberGenerator>
+ void
+ shuffle(_RandomAccessIterator __first, _RandomAccessIterator __last,
+ _UniformRandomNumberGenerator&& __g)
+ {
+ // concept requirements
+ __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept<
+ _RandomAccessIterator>)
+ __glibcxx_requires_valid_range(__first, __last);
+
+ if (__first == __last)
+ return;
+
+ typedef typename iterator_traits<_RandomAccessIterator>::difference_type
+ _DistanceType;
+
+ typedef typename std::make_unsigned<_DistanceType>::type __ud_type;
+ typedef typename std::uniform_int_distribution<__ud_type> __distr_type;
+ typedef typename __distr_type::param_type __p_type;
+ __distr_type __d;
+
+ for (_RandomAccessIterator __i = __first + 1; __i != __last; ++__i)
+ std::iter_swap(__i, __first + __d(__g, __p_type(0, __i - __first)));
+ }
+#endif
+
#endif // __GXX_EXPERIMENTAL_CXX0X__
-_GLIBCXX_END_NAMESPACE
+_GLIBCXX_END_NAMESPACE_VERSION
-_GLIBCXX_BEGIN_NESTED_NAMESPACE(std, _GLIBCXX_STD_P)
+_GLIBCXX_BEGIN_NAMESPACE_ALGO
/**
* @brief Apply a function to every element of a sequence.
* @ingroup non_mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param f A unary function object.
- * @return @p f.
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __f A unary function object.
+ * @return @p __f (std::move(@p __f) in C++0x).
*
- * Applies the function object @p f to each element in the range
- * @p [first,last). @p f must not modify the order of the sequence.
- * If @p f has a return value it is ignored.
+ * Applies the function object @p __f to each element in the range
+ * @p [first,last). @p __f must not modify the order of the sequence.
+ * If @p __f has a return value it is ignored.
*/
template<typename _InputIterator, typename _Function>
_Function
__glibcxx_requires_valid_range(__first, __last);
for (; __first != __last; ++__first)
__f(*__first);
- return __f;
+ return _GLIBCXX_MOVE(__f);
}
/**
* @brief Find the first occurrence of a value in a sequence.
* @ingroup non_mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param val The value to find.
- * @return The first iterator @c i in the range @p [first,last)
- * such that @c *i == @p val, or @p last if no such iterator exists.
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __val The value to find.
+ * @return The first iterator @c i in the range @p [__first,__last)
+ * such that @c *i == @p __val, or @p __last if no such iterator exists.
*/
template<typename _InputIterator, typename _Tp>
inline _InputIterator
* @brief Find the first element in a sequence for which a
* predicate is true.
* @ingroup non_mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param pred A predicate.
- * @return The first iterator @c i in the range @p [first,last)
- * such that @p pred(*i) is true, or @p last if no such iterator exists.
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __pred A predicate.
+ * @return The first iterator @c i in the range @p [__first,__last)
+ * such that @p __pred(*i) is true, or @p __last if no such iterator exists.
*/
template<typename _InputIterator, typename _Predicate>
inline _InputIterator
/**
* @brief Find element from a set in a sequence.
* @ingroup non_mutating_algorithms
- * @param first1 Start of range to search.
- * @param last1 End of range to search.
- * @param first2 Start of match candidates.
- * @param last2 End of match candidates.
+ * @param __first1 Start of range to search.
+ * @param __last1 End of range to search.
+ * @param __first2 Start of match candidates.
+ * @param __last2 End of match candidates.
* @return The first iterator @c i in the range
- * @p [first1,last1) such that @c *i == @p *(i2) such that i2 is an
- * iterator in [first2,last2), or @p last1 if no such iterator exists.
+ * @p [__first1,__last1) such that @c *i == @p *(i2) such that i2 is an
+ * iterator in [__first2,__last2), or @p __last1 if no such iterator exists.
*
- * Searches the range @p [first1,last1) for an element that is equal to
- * some element in the range [first2,last2). If found, returns an iterator
- * in the range [first1,last1), otherwise returns @p last1.
+ * Searches the range @p [__first1,__last1) for an element that is
+ * equal to some element in the range [__first2,__last2). If
+ * found, returns an iterator in the range [__first1,__last1),
+ * otherwise returns @p __last1.
*/
template<typename _InputIterator, typename _ForwardIterator>
_InputIterator
/**
* @brief Find element from a set in a sequence using a predicate.
* @ingroup non_mutating_algorithms
- * @param first1 Start of range to search.
- * @param last1 End of range to search.
- * @param first2 Start of match candidates.
- * @param last2 End of match candidates.
- * @param comp Predicate to use.
+ * @param __first1 Start of range to search.
+ * @param __last1 End of range to search.
+ * @param __first2 Start of match candidates.
+ * @param __last2 End of match candidates.
+ * @param __comp Predicate to use.
* @return The first iterator @c i in the range
- * @p [first1,last1) such that @c comp(*i, @p *(i2)) is true and i2 is an
- * iterator in [first2,last2), or @p last1 if no such iterator exists.
+ * @p [__first1,__last1) such that @c comp(*i, @p *(i2)) is true
+ * and i2 is an iterator in [__first2,__last2), or @p __last1 if no
+ * such iterator exists.
*
- * Searches the range @p [first1,last1) for an element that is
- * equal to some element in the range [first2,last2). If found,
- * returns an iterator in the range [first1,last1), otherwise
- * returns @p last1.
+ * Searches the range @p [__first1,__last1) for an element that is
+ * equal to some element in the range [__first2,__last2). If
+ * found, returns an iterator in the range [__first1,__last1),
+ * otherwise returns @p __last1.
*/
template<typename _InputIterator, typename _ForwardIterator,
typename _BinaryPredicate>
/**
* @brief Find two adjacent values in a sequence that are equal.
* @ingroup non_mutating_algorithms
- * @param first A forward iterator.
- * @param last A forward iterator.
+ * @param __first A forward iterator.
+ * @param __last A forward iterator.
* @return The first iterator @c i such that @c i and @c i+1 are both
- * valid iterators in @p [first,last) and such that @c *i == @c *(i+1),
- * or @p last if no such iterator exists.
+ * valid iterators in @p [__first,__last) and such that @c *i == @c *(i+1),
+ * or @p __last if no such iterator exists.
*/
template<typename _ForwardIterator>
_ForwardIterator
/**
* @brief Find two adjacent values in a sequence using a predicate.
* @ingroup non_mutating_algorithms
- * @param first A forward iterator.
- * @param last A forward iterator.
- * @param binary_pred A binary predicate.
+ * @param __first A forward iterator.
+ * @param __last A forward iterator.
+ * @param __binary_pred A binary predicate.
* @return The first iterator @c i such that @c i and @c i+1 are both
- * valid iterators in @p [first,last) and such that
- * @p binary_pred(*i,*(i+1)) is true, or @p last if no such iterator
+ * valid iterators in @p [__first,__last) and such that
+ * @p __binary_pred(*i,*(i+1)) is true, or @p __last if no such iterator
* exists.
*/
template<typename _ForwardIterator, typename _BinaryPredicate>
/**
* @brief Count the number of copies of a value in a sequence.
* @ingroup non_mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param value The value to be counted.
- * @return The number of iterators @c i in the range @p [first,last)
- * for which @c *i == @p value
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __value The value to be counted.
+ * @return The number of iterators @c i in the range @p [__first,__last)
+ * for which @c *i == @p __value
*/
template<typename _InputIterator, typename _Tp>
typename iterator_traits<_InputIterator>::difference_type
/**
* @brief Count the elements of a sequence for which a predicate is true.
* @ingroup non_mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param pred A predicate.
- * @return The number of iterators @c i in the range @p [first,last)
- * for which @p pred(*i) is true.
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __pred A predicate.
+ * @return The number of iterators @c i in the range @p [__first,__last)
+ * for which @p __pred(*i) is true.
*/
template<typename _InputIterator, typename _Predicate>
typename iterator_traits<_InputIterator>::difference_type
/**
* @brief Search a sequence for a matching sub-sequence.
* @ingroup non_mutating_algorithms
- * @param first1 A forward iterator.
- * @param last1 A forward iterator.
- * @param first2 A forward iterator.
- * @param last2 A forward iterator.
- * @return The first iterator @c i in the range
- * @p [first1,last1-(last2-first2)) such that @c *(i+N) == @p *(first2+N)
- * for each @c N in the range @p [0,last2-first2), or @p last1 if no
- * such iterator exists.
+ * @param __first1 A forward iterator.
+ * @param __last1 A forward iterator.
+ * @param __first2 A forward iterator.
+ * @param __last2 A forward iterator.
+ * @return The first iterator @c i in the range @p
+ * [__first1,__last1-(__last2-__first2)) such that @c *(i+N) == @p
+ * *(__first2+N) for each @c N in the range @p
+ * [0,__last2-__first2), or @p __last1 if no such iterator exists.
*
- * Searches the range @p [first1,last1) for a sub-sequence that compares
- * equal value-by-value with the sequence given by @p [first2,last2) and
- * returns an iterator to the first element of the sub-sequence, or
- * @p last1 if the sub-sequence is not found.
+ * Searches the range @p [__first1,__last1) for a sub-sequence that
+ * compares equal value-by-value with the sequence given by @p
+ * [__first2,__last2) and returns an iterator to the first element
+ * of the sub-sequence, or @p __last1 if the sub-sequence is not
+ * found.
+ *
+ * Because the sub-sequence must lie completely within the range @p
+ * [__first1,__last1) it must start at a position less than @p
+ * __last1-(__last2-__first2) where @p __last2-__first2 is the
+ * length of the sub-sequence.
*
- * Because the sub-sequence must lie completely within the range
- * @p [first1,last1) it must start at a position less than
- * @p last1-(last2-first2) where @p last2-first2 is the length of the
- * sub-sequence.
* This means that the returned iterator @c i will be in the range
- * @p [first1,last1-(last2-first2))
+ * @p [__first1,__last1-(__last2-__first2))
*/
template<typename _ForwardIterator1, typename _ForwardIterator2>
_ForwardIterator1
// Test for a pattern of length 1.
_ForwardIterator2 __p1(__first2);
if (++__p1 == __last2)
- return _GLIBCXX_STD_P::find(__first1, __last1, *__first2);
+ return _GLIBCXX_STD_A::find(__first1, __last1, *__first2);
// General case.
_ForwardIterator2 __p;
for (;;)
{
- __first1 = _GLIBCXX_STD_P::find(__first1, __last1, *__first2);
+ __first1 = _GLIBCXX_STD_A::find(__first1, __last1, *__first2);
if (__first1 == __last1)
return __last1;
/**
* @brief Search a sequence for a matching sub-sequence using a predicate.
* @ingroup non_mutating_algorithms
- * @param first1 A forward iterator.
- * @param last1 A forward iterator.
- * @param first2 A forward iterator.
- * @param last2 A forward iterator.
- * @param predicate A binary predicate.
+ * @param __first1 A forward iterator.
+ * @param __last1 A forward iterator.
+ * @param __first2 A forward iterator.
+ * @param __last2 A forward iterator.
+ * @param __predicate A binary predicate.
* @return The first iterator @c i in the range
- * @p [first1,last1-(last2-first2)) such that
- * @p predicate(*(i+N),*(first2+N)) is true for each @c N in the range
- * @p [0,last2-first2), or @p last1 if no such iterator exists.
+ * @p [__first1,__last1-(__last2-__first2)) such that
+ * @p __predicate(*(i+N),*(__first2+N)) is true for each @c N in the range
+ * @p [0,__last2-__first2), or @p __last1 if no such iterator exists.
*
- * Searches the range @p [first1,last1) for a sub-sequence that compares
- * equal value-by-value with the sequence given by @p [first2,last2),
- * using @p predicate to determine equality, and returns an iterator
- * to the first element of the sub-sequence, or @p last1 if no such
- * iterator exists.
+ * Searches the range @p [__first1,__last1) for a sub-sequence that
+ * compares equal value-by-value with the sequence given by @p
+ * [__first2,__last2), using @p __predicate to determine equality,
+ * and returns an iterator to the first element of the
+ * sub-sequence, or @p __last1 if no such iterator exists.
*
* @see search(_ForwardIter1, _ForwardIter1, _ForwardIter2, _ForwardIter2)
*/
/**
* @brief Search a sequence for a number of consecutive values.
* @ingroup non_mutating_algorithms
- * @param first A forward iterator.
- * @param last A forward iterator.
- * @param count The number of consecutive values.
- * @param val The value to find.
- * @return The first iterator @c i in the range @p [first,last-count)
- * such that @c *(i+N) == @p val for each @c N in the range @p [0,count),
- * or @p last if no such iterator exists.
+ * @param __first A forward iterator.
+ * @param __last A forward iterator.
+ * @param __count The number of consecutive values.
+ * @param __val The value to find.
+ * @return The first iterator @c i in the range @p
+ * [__first,__last-__count) such that @c *(i+N) == @p __val for
+ * each @c N in the range @p [0,__count), or @p __last if no such
+ * iterator exists.
*
- * Searches the range @p [first,last) for @p count consecutive elements
- * equal to @p val.
+ * Searches the range @p [__first,__last) for @p count consecutive elements
+ * equal to @p __val.
*/
template<typename _ForwardIterator, typename _Integer, typename _Tp>
_ForwardIterator
if (__count <= 0)
return __first;
if (__count == 1)
- return _GLIBCXX_STD_P::find(__first, __last, __val);
+ return _GLIBCXX_STD_A::find(__first, __last, __val);
return std::__search_n(__first, __last, __count, __val,
std::__iterator_category(__first));
}
* @brief Search a sequence for a number of consecutive values using a
* predicate.
* @ingroup non_mutating_algorithms
- * @param first A forward iterator.
- * @param last A forward iterator.
- * @param count The number of consecutive values.
- * @param val The value to find.
- * @param binary_pred A binary predicate.
- * @return The first iterator @c i in the range @p [first,last-count)
- * such that @p binary_pred(*(i+N),val) is true for each @c N in the
- * range @p [0,count), or @p last if no such iterator exists.
+ * @param __first A forward iterator.
+ * @param __last A forward iterator.
+ * @param __count The number of consecutive values.
+ * @param __val The value to find.
+ * @param __binary_pred A binary predicate.
+ * @return The first iterator @c i in the range @p
+ * [__first,__last-__count) such that @p
+ * __binary_pred(*(i+N),__val) is true for each @c N in the range
+ * @p [0,__count), or @p __last if no such iterator exists.
*
- * Searches the range @p [first,last) for @p count consecutive elements
- * for which the predicate returns true.
+ * Searches the range @p [__first,__last) for @p __count
+ * consecutive elements for which the predicate returns true.
*/
template<typename _ForwardIterator, typename _Integer, typename _Tp,
typename _BinaryPredicate>
/**
* @brief Perform an operation on a sequence.
* @ingroup mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param result An output iterator.
- * @param unary_op A unary operator.
- * @return An output iterator equal to @p result+(last-first).
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __result An output iterator.
+ * @param __unary_op A unary operator.
+ * @return An output iterator equal to @p __result+(__last-__first).
*
* Applies the operator to each element in the input range and assigns
* the results to successive elements of the output sequence.
- * Evaluates @p *(result+N)=unary_op(*(first+N)) for each @c N in the
- * range @p [0,last-first).
+ * Evaluates @p *(__result+N)=unary_op(*(__first+N)) for each @c N in the
+ * range @p [0,__last-__first).
*
* @p unary_op must not alter its argument.
*/
/**
* @brief Perform an operation on corresponding elements of two sequences.
* @ingroup mutating_algorithms
- * @param first1 An input iterator.
- * @param last1 An input iterator.
- * @param first2 An input iterator.
- * @param result An output iterator.
- * @param binary_op A binary operator.
+ * @param __first1 An input iterator.
+ * @param __last1 An input iterator.
+ * @param __first2 An input iterator.
+ * @param __result An output iterator.
+ * @param __binary_op A binary operator.
* @return An output iterator equal to @p result+(last-first).
*
* Applies the operator to the corresponding elements in the two
* input ranges and assigns the results to successive elements of the
* output sequence.
- * Evaluates @p *(result+N)=binary_op(*(first1+N),*(first2+N)) for each
- * @c N in the range @p [0,last1-first1).
+ * Evaluates @p
+ * *(__result+N)=__binary_op(*(__first1+N),*(__first2+N)) for each
+ * @c N in the range @p [0,__last1-__first1).
*
* @p binary_op must not alter either of its arguments.
*/
* @brief Replace each occurrence of one value in a sequence with another
* value.
* @ingroup mutating_algorithms
- * @param first A forward iterator.
- * @param last A forward iterator.
- * @param old_value The value to be replaced.
- * @param new_value The replacement value.
+ * @param __first A forward iterator.
+ * @param __last A forward iterator.
+ * @param __old_value The value to be replaced.
+ * @param __new_value The replacement value.
* @return replace() returns no value.
*
- * For each iterator @c i in the range @p [first,last) if @c *i ==
- * @p old_value then the assignment @c *i = @p new_value is performed.
+ * For each iterator @c i in the range @p [__first,__last) if @c *i ==
+ * @p __old_value then the assignment @c *i = @p __new_value is performed.
*/
template<typename _ForwardIterator, typename _Tp>
void
* @brief Replace each value in a sequence for which a predicate returns
* true with another value.
* @ingroup mutating_algorithms
- * @param first A forward iterator.
- * @param last A forward iterator.
- * @param pred A predicate.
- * @param new_value The replacement value.
+ * @param __first A forward iterator.
+ * @param __last A forward iterator.
+ * @param __pred A predicate.
+ * @param __new_value The replacement value.
* @return replace_if() returns no value.
*
- * For each iterator @c i in the range @p [first,last) if @p pred(*i)
- * is true then the assignment @c *i = @p new_value is performed.
+ * For each iterator @c i in the range @p [__first,__last) if @p __pred(*i)
+ * is true then the assignment @c *i = @p __new_value is performed.
*/
template<typename _ForwardIterator, typename _Predicate, typename _Tp>
void
* @brief Assign the result of a function object to each value in a
* sequence.
* @ingroup mutating_algorithms
- * @param first A forward iterator.
- * @param last A forward iterator.
- * @param gen A function object taking no arguments and returning
+ * @param __first A forward iterator.
+ * @param __last A forward iterator.
+ * @param __gen A function object taking no arguments and returning
* std::iterator_traits<_ForwardIterator>::value_type
* @return generate() returns no value.
*
- * Performs the assignment @c *i = @p gen() for each @c i in the range
- * @p [first,last).
+ * Performs the assignment @c *i = @p __gen() for each @c i in the range
+ * @p [__first,__last).
*/
template<typename _ForwardIterator, typename _Generator>
void
* @brief Assign the result of a function object to each value in a
* sequence.
* @ingroup mutating_algorithms
- * @param first A forward iterator.
- * @param n The length of the sequence.
- * @param gen A function object taking no arguments and returning
+ * @param __first A forward iterator.
+ * @param __n The length of the sequence.
+ * @param __gen A function object taking no arguments and returning
* std::iterator_traits<_ForwardIterator>::value_type
- * @return The end of the sequence, @p first+n
+ * @return The end of the sequence, @p __first+__n
*
- * Performs the assignment @c *i = @p gen() for each @c i in the range
- * @p [first,first+n).
+ * Performs the assignment @c *i = @p __gen() for each @c i in the range
+ * @p [__first,__first+__n).
+ *
+ * _GLIBCXX_RESOLVE_LIB_DEFECTS
+ * DR 865. More algorithms that throw away information
*/
template<typename _OutputIterator, typename _Size, typename _Generator>
_OutputIterator
// "the type returned by a _Generator"
__typeof__(__gen())>)
- for (; __n > 0; --__n, ++__first)
+ for (__decltype(__n + 0) __niter = __n;
+ __niter > 0; --__niter, ++__first)
*__first = __gen();
return __first;
}
/**
* @brief Copy a sequence, removing consecutive duplicate values.
* @ingroup mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param result An output iterator.
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __result An output iterator.
* @return An iterator designating the end of the resulting sequence.
*
- * Copies each element in the range @p [first,last) to the range
- * beginning at @p result, except that only the first element is copied
+ * Copies each element in the range @p [__first,__last) to the range
+ * beginning at @p __result, except that only the first element is copied
* from groups of consecutive elements that compare equal.
* unique_copy() is stable, so the relative order of elements that are
* copied is unchanged.
/**
* @brief Copy a sequence, removing consecutive values using a predicate.
* @ingroup mutating_algorithms
- * @param first An input iterator.
- * @param last An input iterator.
- * @param result An output iterator.
- * @param binary_pred A binary predicate.
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @param __result An output iterator.
+ * @param __binary_pred A binary predicate.
* @return An iterator designating the end of the resulting sequence.
*
- * Copies each element in the range @p [first,last) to the range
- * beginning at @p result, except that only the first element is copied
- * from groups of consecutive elements for which @p binary_pred returns
+ * Copies each element in the range @p [__first,__last) to the range
+ * beginning at @p __result, except that only the first element is copied
+ * from groups of consecutive elements for which @p __binary_pred returns
* true.
* unique_copy() is stable, so the relative order of elements that are
* copied is unchanged.
/**
* @brief Randomly shuffle the elements of a sequence.
* @ingroup mutating_algorithms
- * @param first A forward iterator.
- * @param last A forward iterator.
+ * @param __first A forward iterator.
+ * @param __last A forward iterator.
* @return Nothing.
*
- * Reorder the elements in the range @p [first,last) using a random
+ * Reorder the elements in the range @p [__first,__last) using a random
* distribution, so that every possible ordering of the sequence is
* equally likely.
*/
* @brief Shuffle the elements of a sequence using a random number
* generator.
* @ingroup mutating_algorithms
- * @param first A forward iterator.
- * @param last A forward iterator.
- * @param rand The RNG functor or function.
+ * @param __first A forward iterator.
+ * @param __last A forward iterator.
+ * @param __rand The RNG functor or function.
* @return Nothing.
*
- * Reorders the elements in the range @p [first,last) using @p rand to
- * provide a random distribution. Calling @p rand(N) for a positive
+ * Reorders the elements in the range @p [__first,__last) using @p __rand to
+ * provide a random distribution. Calling @p __rand(N) for a positive
* integer @p N should return a randomly chosen integer from the
* range [0,N).
*/
template<typename _RandomAccessIterator, typename _RandomNumberGenerator>
void
random_shuffle(_RandomAccessIterator __first, _RandomAccessIterator __last,
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ _RandomNumberGenerator&& __rand)
+#else
_RandomNumberGenerator& __rand)
+#endif
{
// concept requirements
__glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept<
* @brief Move elements for which a predicate is true to the beginning
* of a sequence.
* @ingroup mutating_algorithms
- * @param first A forward iterator.
- * @param last A forward iterator.
- * @param pred A predicate functor.
- * @return An iterator @p middle such that @p pred(i) is true for each
- * iterator @p i in the range @p [first,middle) and false for each @p i
- * in the range @p [middle,last).
+ * @param __first A forward iterator.
+ * @param __last A forward iterator.
+ * @param __pred A predicate functor.
+ * @return An iterator @p middle such that @p __pred(i) is true for each
+ * iterator @p i in the range @p [__first,middle) and false for each @p i
+ * in the range @p [middle,__last).
*
- * @p pred must not modify its operand. @p partition() does not preserve
+ * @p __pred must not modify its operand. @p partition() does not preserve
* the relative ordering of elements in each group, use
* @p stable_partition() if this is needed.
*/
/**
* @brief Sort the smallest elements of a sequence.
* @ingroup sorting_algorithms
- * @param first An iterator.
- * @param middle Another iterator.
- * @param last Another iterator.
+ * @param __first An iterator.
+ * @param __middle Another iterator.
+ * @param __last Another iterator.
* @return Nothing.
*
- * Sorts the smallest @p (middle-first) elements in the range
- * @p [first,last) and moves them to the range @p [first,middle). The
- * order of the remaining elements in the range @p [middle,last) is
+ * Sorts the smallest @p (__middle-__first) elements in the range
+ * @p [first,last) and moves them to the range @p [__first,__middle). The
+ * order of the remaining elements in the range @p [__middle,__last) is
* undefined.
- * After the sort if @p i and @j are iterators in the range
- * @p [first,middle) such that @i precedes @j and @k is an iterator in
- * the range @p [middle,last) then @p *j<*i and @p *k<*i are both false.
+ * After the sort if @e i and @e j are iterators in the range
+ * @p [__first,__middle) such that i precedes j and @e k is an iterator in
+ * the range @p [__middle,__last) then *j<*i and *k<*i are both false.
*/
template<typename _RandomAccessIterator>
inline void
* @brief Sort the smallest elements of a sequence using a predicate
* for comparison.
* @ingroup sorting_algorithms
- * @param first An iterator.
- * @param middle Another iterator.
- * @param last Another iterator.
- * @param comp A comparison functor.
+ * @param __first An iterator.
+ * @param __middle Another iterator.
+ * @param __last Another iterator.
+ * @param __comp A comparison functor.
* @return Nothing.
*
- * Sorts the smallest @p (middle-first) elements in the range
- * @p [first,last) and moves them to the range @p [first,middle). The
- * order of the remaining elements in the range @p [middle,last) is
+ * Sorts the smallest @p (__middle-__first) elements in the range
+ * @p [__first,__last) and moves them to the range @p [__first,__middle). The
+ * order of the remaining elements in the range @p [__middle,__last) is
* undefined.
- * After the sort if @p i and @j are iterators in the range
- * @p [first,middle) such that @i precedes @j and @k is an iterator in
- * the range @p [middle,last) then @p *comp(j,*i) and @p comp(*k,*i)
+ * After the sort if @e i and @e j are iterators in the range
+ * @p [__first,__middle) such that i precedes j and @e k is an iterator in
+ * the range @p [__middle,__last) then @p *__comp(j,*i) and @p __comp(*k,*i)
* are both false.
*/
template<typename _RandomAccessIterator, typename _Compare>
/**
* @brief Sort a sequence just enough to find a particular position.
* @ingroup sorting_algorithms
- * @param first An iterator.
- * @param nth Another iterator.
- * @param last Another iterator.
+ * @param __first An iterator.
+ * @param __nth Another iterator.
+ * @param __last Another iterator.
* @return Nothing.
*
- * Rearranges the elements in the range @p [first,last) so that @p *nth
+ * Rearranges the elements in the range @p [__first,__last) so that @p *__nth
* is the same element that would have been in that position had the
- * whole sequence been sorted.
- * whole sequence been sorted. The elements either side of @p *nth are
- * not completely sorted, but for any iterator @i in the range
- * @p [first,nth) and any iterator @j in the range @p [nth,last) it
- * holds that @p *j<*i is false.
+ * whole sequence been sorted. The elements either side of @p *__nth are
+ * not completely sorted, but for any iterator @e i in the range
+ * @p [__first,__nth) and any iterator @e j in the range @p [__nth,__last) it
+ * holds that *j < *i is false.
*/
template<typename _RandomAccessIterator>
inline void
* @brief Sort a sequence just enough to find a particular position
* using a predicate for comparison.
* @ingroup sorting_algorithms
- * @param first An iterator.
- * @param nth Another iterator.
- * @param last Another iterator.
- * @param comp A comparison functor.
+ * @param __first An iterator.
+ * @param __nth Another iterator.
+ * @param __last Another iterator.
+ * @param __comp A comparison functor.
* @return Nothing.
*
- * Rearranges the elements in the range @p [first,last) so that @p *nth
+ * Rearranges the elements in the range @p [__first,__last) so that @p *__nth
* is the same element that would have been in that position had the
- * whole sequence been sorted. The elements either side of @p *nth are
- * not completely sorted, but for any iterator @i in the range
- * @p [first,nth) and any iterator @j in the range @p [nth,last) it
- * holds that @p comp(*j,*i) is false.
+ * whole sequence been sorted. The elements either side of @p *__nth are
+ * not completely sorted, but for any iterator @e i in the range
+ * @p [__first,__nth) and any iterator @e j in the range @p [__nth,__last) it
+ * holds that @p __comp(*j,*i) is false.
*/
template<typename _RandomAccessIterator, typename _Compare>
inline void
/**
* @brief Sort the elements of a sequence.
* @ingroup sorting_algorithms
- * @param first An iterator.
- * @param last Another iterator.
+ * @param __first An iterator.
+ * @param __last Another iterator.
* @return Nothing.
*
- * Sorts the elements in the range @p [first,last) in ascending order,
- * such that @p *(i+1)<*i is false for each iterator @p i in the range
- * @p [first,last-1).
+ * Sorts the elements in the range @p [__first,__last) in ascending order,
+ * such that for each iterator @e i in the range @p [__first,__last-1),
+ * *(i+1)<*i is false.
*
* The relative ordering of equivalent elements is not preserved, use
* @p stable_sort() if this is needed.
/**
* @brief Sort the elements of a sequence using a predicate for comparison.
* @ingroup sorting_algorithms
- * @param first An iterator.
- * @param last Another iterator.
- * @param comp A comparison functor.
+ * @param __first An iterator.
+ * @param __last Another iterator.
+ * @param __comp A comparison functor.
* @return Nothing.
*
- * Sorts the elements in the range @p [first,last) in ascending order,
- * such that @p comp(*(i+1),*i) is false for every iterator @p i in the
- * range @p [first,last-1).
+ * Sorts the elements in the range @p [__first,__last) in ascending order,
+ * such that @p __comp(*(i+1),*i) is false for every iterator @e i in the
+ * range @p [__first,__last-1).
*
* The relative ordering of equivalent elements is not preserved, use
* @p stable_sort() if this is needed.
/**
* @brief Merges two sorted ranges.
* @ingroup sorting_algorithms
- * @param first1 An iterator.
- * @param first2 Another iterator.
- * @param last1 Another iterator.
- * @param last2 Another iterator.
- * @param result An iterator pointing to the end of the merged range.
- * @return An iterator pointing to the first element "not less
- * than" @a val.
+ * @param __first1 An iterator.
+ * @param __first2 Another iterator.
+ * @param __last1 Another iterator.
+ * @param __last2 Another iterator.
+ * @param __result An iterator pointing to the end of the merged range.
+ * @return An iterator pointing to the first element <em>not less
+ * than</em> @e val.
*
- * Merges the ranges [first1,last1) and [first2,last2) into the sorted range
- * [result, result + (last1-first1) + (last2-first2)). Both input ranges
- * must be sorted, and the output range must not overlap with either of
- * the input ranges. The sort is @e stable, that is, for equivalent
- * elements in the two ranges, elements from the first range will always
- * come before elements from the second.
+ * Merges the ranges @p [__first1,__last1) and @p [__first2,__last2) into
+ * the sorted range @p [__result, __result + (__last1-__first1) +
+ * (__last2-__first2)). Both input ranges must be sorted, and the
+ * output range must not overlap with either of the input ranges.
+ * The sort is @e stable, that is, for equivalent elements in the
+ * two ranges, elements from the first range will always come
+ * before elements from the second.
*/
template<typename _InputIterator1, typename _InputIterator2,
typename _OutputIterator>
/**
* @brief Merges two sorted ranges.
* @ingroup sorting_algorithms
- * @param first1 An iterator.
- * @param first2 Another iterator.
- * @param last1 Another iterator.
- * @param last2 Another iterator.
- * @param result An iterator pointing to the end of the merged range.
- * @param comp A functor to use for comparisons.
+ * @param __first1 An iterator.
+ * @param __first2 Another iterator.
+ * @param __last1 Another iterator.
+ * @param __last2 Another iterator.
+ * @param __result An iterator pointing to the end of the merged range.
+ * @param __comp A functor to use for comparisons.
* @return An iterator pointing to the first element "not less
- * than" @a val.
+ * than" @e val.
*
- * Merges the ranges [first1,last1) and [first2,last2) into the sorted range
- * [result, result + (last1-first1) + (last2-first2)). Both input ranges
- * must be sorted, and the output range must not overlap with either of
- * the input ranges. The sort is @e stable, that is, for equivalent
- * elements in the two ranges, elements from the first range will always
- * come before elements from the second.
+ * Merges the ranges @p [__first1,__last1) and @p [__first2,__last2) into
+ * the sorted range @p [__result, __result + (__last1-__first1) +
+ * (__last2-__first2)). Both input ranges must be sorted, and the
+ * output range must not overlap with either of the input ranges.
+ * The sort is @e stable, that is, for equivalent elements in the
+ * two ranges, elements from the first range will always come
+ * before elements from the second.
*
* The comparison function should have the same effects on ordering as
* the function used for the initial sort.
* @brief Sort the elements of a sequence, preserving the relative order
* of equivalent elements.
* @ingroup sorting_algorithms
- * @param first An iterator.
- * @param last Another iterator.
+ * @param __first An iterator.
+ * @param __last Another iterator.
* @return Nothing.
*
- * Sorts the elements in the range @p [first,last) in ascending order,
- * such that @p *(i+1)<*i is false for each iterator @p i in the range
- * @p [first,last-1).
+ * Sorts the elements in the range @p [__first,__last) in ascending order,
+ * such that for each iterator @p i in the range @p [__first,__last-1),
+ * @p *(i+1)<*i is false.
*
* The relative ordering of equivalent elements is preserved, so any two
- * elements @p x and @p y in the range @p [first,last) such that
+ * elements @p x and @p y in the range @p [__first,__last) such that
* @p x<y is false and @p y<x is false will have the same relative
* ordering after calling @p stable_sort().
*/
* @brief Sort the elements of a sequence using a predicate for comparison,
* preserving the relative order of equivalent elements.
* @ingroup sorting_algorithms
- * @param first An iterator.
- * @param last Another iterator.
- * @param comp A comparison functor.
+ * @param __first An iterator.
+ * @param __last Another iterator.
+ * @param __comp A comparison functor.
* @return Nothing.
*
- * Sorts the elements in the range @p [first,last) in ascending order,
- * such that @p comp(*(i+1),*i) is false for each iterator @p i in the
- * range @p [first,last-1).
+ * Sorts the elements in the range @p [__first,__last) in ascending order,
+ * such that for each iterator @p i in the range @p [__first,__last-1),
+ * @p __comp(*(i+1),*i) is false.
*
* The relative ordering of equivalent elements is preserved, so any two
- * elements @p x and @p y in the range @p [first,last) such that
- * @p comp(x,y) is false and @p comp(y,x) is false will have the same
+ * elements @p x and @p y in the range @p [__first,__last) such that
+ * @p __comp(x,y) is false and @p __comp(y,x) is false will have the same
* relative ordering after calling @p stable_sort().
*/
template<typename _RandomAccessIterator, typename _Compare>
/**
* @brief Return the union of two sorted ranges.
* @ingroup set_algorithms
- * @param first1 Start of first range.
- * @param last1 End of first range.
- * @param first2 Start of second range.
- * @param last2 End of second range.
+ * @param __first1 Start of first range.
+ * @param __last1 End of first range.
+ * @param __first2 Start of second range.
+ * @param __last2 End of second range.
* @return End of the output range.
* @ingroup set_algorithms
*
/**
* @brief Return the union of two sorted ranges using a comparison functor.
* @ingroup set_algorithms
- * @param first1 Start of first range.
- * @param last1 End of first range.
- * @param first2 Start of second range.
- * @param last2 End of second range.
- * @param comp The comparison functor.
+ * @param __first1 Start of first range.
+ * @param __last1 End of first range.
+ * @param __first2 Start of second range.
+ * @param __last2 End of second range.
+ * @param __comp The comparison functor.
* @return End of the output range.
* @ingroup set_algorithms
*
* This operation iterates over both ranges, copying elements present in
* each range in order to the output range. Iterators increment for each
* range. When the current element of one range is less than the other
- * according to @a comp, that element is copied and the iterator advanced.
- * If an equivalent element according to @a comp is contained in both
+ * according to @p __comp, that element is copied and the iterator advanced.
+ * If an equivalent element according to @p __comp is contained in both
* ranges, the element from the first range is copied and both ranges
* advance. The output range may not overlap either input range.
*/
/**
* @brief Return the intersection of two sorted ranges.
* @ingroup set_algorithms
- * @param first1 Start of first range.
- * @param last1 End of first range.
- * @param first2 Start of second range.
- * @param last2 End of second range.
+ * @param __first1 Start of first range.
+ * @param __last1 End of first range.
+ * @param __first2 Start of second range.
+ * @param __last2 End of second range.
* @return End of the output range.
* @ingroup set_algorithms
*
* @brief Return the intersection of two sorted ranges using comparison
* functor.
* @ingroup set_algorithms
- * @param first1 Start of first range.
- * @param last1 End of first range.
- * @param first2 Start of second range.
- * @param last2 End of second range.
- * @param comp The comparison functor.
+ * @param __first1 Start of first range.
+ * @param __last1 End of first range.
+ * @param __first2 Start of second range.
+ * @param __last2 End of second range.
+ * @param __comp The comparison functor.
* @return End of the output range.
* @ingroup set_algorithms
*
* This operation iterates over both ranges, copying elements present in
* both ranges in order to the output range. Iterators increment for each
* range. When the current element of one range is less than the other
- * according to @a comp, that iterator advances. If an element is
- * contained in both ranges according to @a comp, the element from the
+ * according to @p __comp, that iterator advances. If an element is
+ * contained in both ranges according to @p __comp, the element from the
* first range is copied and both ranges advance. The output range may not
* overlap either input range.
*/
/**
* @brief Return the difference of two sorted ranges.
* @ingroup set_algorithms
- * @param first1 Start of first range.
- * @param last1 End of first range.
- * @param first2 Start of second range.
- * @param last2 End of second range.
+ * @param __first1 Start of first range.
+ * @param __last1 End of first range.
+ * @param __first2 Start of second range.
+ * @param __last2 End of second range.
* @return End of the output range.
* @ingroup set_algorithms
*
* @brief Return the difference of two sorted ranges using comparison
* functor.
* @ingroup set_algorithms
- * @param first1 Start of first range.
- * @param last1 End of first range.
- * @param first2 Start of second range.
- * @param last2 End of second range.
- * @param comp The comparison functor.
+ * @param __first1 Start of first range.
+ * @param __last1 End of first range.
+ * @param __first2 Start of second range.
+ * @param __last2 End of second range.
+ * @param __comp The comparison functor.
* @return End of the output range.
* @ingroup set_algorithms
*
* This operation iterates over both ranges, copying elements present in
* the first range but not the second in order to the output range.
* Iterators increment for each range. When the current element of the
- * first range is less than the second according to @a comp, that element
+ * first range is less than the second according to @p __comp, that element
* is copied and the iterator advances. If the current element of the
* second range is less, no element is copied and the iterator advances.
- * If an element is contained in both ranges according to @a comp, no
+ * If an element is contained in both ranges according to @p __comp, no
* elements are copied and both ranges advance. The output range may not
* overlap either input range.
*/
/**
* @brief Return the symmetric difference of two sorted ranges.
* @ingroup set_algorithms
- * @param first1 Start of first range.
- * @param last1 End of first range.
- * @param first2 Start of second range.
- * @param last2 End of second range.
+ * @param __first1 Start of first range.
+ * @param __last1 End of first range.
+ * @param __first2 Start of second range.
+ * @param __last2 End of second range.
* @return End of the output range.
* @ingroup set_algorithms
*
* @brief Return the symmetric difference of two sorted ranges using
* comparison functor.
* @ingroup set_algorithms
- * @param first1 Start of first range.
- * @param last1 End of first range.
- * @param first2 Start of second range.
- * @param last2 End of second range.
- * @param comp The comparison functor.
+ * @param __first1 Start of first range.
+ * @param __last1 End of first range.
+ * @param __first2 Start of second range.
+ * @param __last2 End of second range.
+ * @param __comp The comparison functor.
* @return End of the output range.
* @ingroup set_algorithms
*
* This operation iterates over both ranges, copying elements present in
* one range but not the other in order to the output range. Iterators
* increment for each range. When the current element of one range is less
- * than the other according to @a comp, that element is copied and the
+ * than the other according to @p comp, that element is copied and the
* iterator advances. If an element is contained in both ranges according
- * to @a comp, no elements are copied and both ranges advance. The output
+ * to @p __comp, no elements are copied and both ranges advance. The output
* range may not overlap either input range.
*/
template<typename _InputIterator1, typename _InputIterator2,
/**
* @brief Return the minimum element in a range.
* @ingroup sorting_algorithms
- * @param first Start of range.
- * @param last End of range.
+ * @param __first Start of range.
+ * @param __last End of range.
* @return Iterator referencing the first instance of the smallest value.
*/
template<typename _ForwardIterator>
/**
* @brief Return the minimum element in a range using comparison functor.
* @ingroup sorting_algorithms
- * @param first Start of range.
- * @param last End of range.
- * @param comp Comparison functor.
+ * @param __first Start of range.
+ * @param __last End of range.
+ * @param __comp Comparison functor.
* @return Iterator referencing the first instance of the smallest value
- * according to comp.
+ * according to __comp.
*/
template<typename _ForwardIterator, typename _Compare>
_ForwardIterator
/**
* @brief Return the maximum element in a range.
* @ingroup sorting_algorithms
- * @param first Start of range.
- * @param last End of range.
+ * @param __first Start of range.
+ * @param __last End of range.
* @return Iterator referencing the first instance of the largest value.
*/
template<typename _ForwardIterator>
/**
* @brief Return the maximum element in a range using comparison functor.
* @ingroup sorting_algorithms
- * @param first Start of range.
- * @param last End of range.
- * @param comp Comparison functor.
+ * @param __first Start of range.
+ * @param __last End of range.
+ * @param __comp Comparison functor.
* @return Iterator referencing the first instance of the largest value
- * according to comp.
+ * according to __comp.
*/
template<typename _ForwardIterator, typename _Compare>
_ForwardIterator
return __result;
}
-_GLIBCXX_END_NESTED_NAMESPACE
+_GLIBCXX_END_NAMESPACE_ALGO
+} // namespace std
#endif /* _STL_ALGO_H */
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