author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 02:01:42 +0200 | |
changeset 0 | e4d67989cc36 |
permissions | -rw-r--r-- |
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// (C) Copyright Herve Bronnimann 2004. |
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// Use, modification and distribution are subject to the |
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// Boost Software License, Version 1.0. (See accompanying file |
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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/* |
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Revision history: |
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1 July 2004 |
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Split the code into two headers to lessen dependence on |
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Boost.tuple. (Herve) |
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26 June 2004 |
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Added the code for the boost minmax library. (Herve) |
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*/ |
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#ifndef BOOST_ALGORITHM_MINMAX_ELEMENT_HPP |
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#define BOOST_ALGORITHM_MINMAX_ELEMENT_HPP |
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/* PROPOSED STANDARD EXTENSIONS: |
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* |
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* minmax_element(first, last) |
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* Effect: std::make_pair( std::min_element(first, last), |
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* std::max_element(first, last) ); |
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* |
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* minmax_element(first, last, comp) |
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* Effect: std::make_pair( std::min_element(first, last, comp), |
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* std::max_element(first, last, comp) ); |
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*/ |
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#include <utility> // for std::pair and std::make_pair |
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namespace boost { |
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namespace detail { // for obtaining a uniform version of minmax_element |
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// that compiles with VC++ 6.0 -- avoid the iterator_traits by |
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// having comparison object over iterator, not over dereferenced value |
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template <typename Iterator> |
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struct less_over_iter { |
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bool operator()(Iterator const& it1, |
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Iterator const& it2) const { return *it1 < *it2; } |
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}; |
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template <typename Iterator, class BinaryPredicate> |
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struct binary_pred_over_iter { |
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explicit binary_pred_over_iter(BinaryPredicate const& p ) : m_p( p ) {} |
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bool operator()(Iterator const& it1, |
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Iterator const& it2) const { return m_p(*it1, *it2); } |
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private: |
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BinaryPredicate m_p; |
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}; |
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// common base for the two minmax_element overloads |
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template <typename ForwardIter, class Compare > |
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std::pair<ForwardIter,ForwardIter> |
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basic_minmax_element(ForwardIter first, ForwardIter last, Compare comp) |
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{ |
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if (first == last) |
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return std::make_pair(last,last); |
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ForwardIter min_result = first; |
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ForwardIter max_result = first; |
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// if only one element |
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ForwardIter second = first; ++second; |
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if (second == last) |
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return std::make_pair(min_result, max_result); |
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// treat first pair separately (only one comparison for first two elements) |
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ForwardIter potential_min_result = last; |
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if (comp(first, second)) |
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max_result = second; |
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else { |
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min_result = second; |
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potential_min_result = first; |
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} |
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// then each element by pairs, with at most 3 comparisons per pair |
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first = ++second; if (first != last) ++second; |
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while (second != last) { |
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if (comp(first, second)) { |
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if (comp(first, min_result)) { |
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min_result = first; |
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potential_min_result = last; |
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} |
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if (comp(max_result, second)) |
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max_result = second; |
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} else { |
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if (comp(second, min_result)) { |
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min_result = second; |
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potential_min_result = first; |
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} |
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if (comp(max_result, first)) |
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max_result = first; |
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} |
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first = ++second; |
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if (first != last) ++second; |
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} |
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// if odd number of elements, treat last element |
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if (first != last) { // odd number of elements |
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if (comp(first, min_result)) |
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min_result = first, potential_min_result = last; |
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else if (comp(max_result, first)) |
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max_result = first; |
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} |
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107 |
|
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// resolve min_result being incorrect with one extra comparison |
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// (in which case potential_min_result is necessarily the correct result) |
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if (potential_min_result != last |
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&& !comp(min_result, potential_min_result)) |
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min_result = potential_min_result; |
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113 |
|
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return std::make_pair(min_result,max_result); |
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} |
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116 |
|
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} // namespace detail |
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118 |
|
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119 |
template <typename ForwardIter> |
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std::pair<ForwardIter,ForwardIter> |
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minmax_element(ForwardIter first, ForwardIter last) |
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122 |
{ |
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return detail::basic_minmax_element(first, last, |
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detail::less_over_iter<ForwardIter>() ); |
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} |
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126 |
|
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template <typename ForwardIter, class BinaryPredicate> |
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std::pair<ForwardIter,ForwardIter> |
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minmax_element(ForwardIter first, ForwardIter last, BinaryPredicate comp) |
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130 |
{ |
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return detail::basic_minmax_element(first, last, |
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detail::binary_pred_over_iter<ForwardIter,BinaryPredicate>(comp) ); |
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} |
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134 |
|
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135 |
} |
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136 |
|
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137 |
/* PROPOSED BOOST EXTENSIONS |
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* In the description below, [rfirst,rlast) denotes the reversed range |
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* of [first,last). Even though the iterator type of first and last may |
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* be only a Forward Iterator, it is possible to explain the semantics |
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* by assuming that it is a Bidirectional Iterator. In the sequel, |
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* reverse(ForwardIterator&) returns the reverse_iterator adaptor. |
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* This is not how the functions would be implemented! |
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144 |
* |
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* first_min_element(first, last) |
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* Effect: std::min_element(first, last); |
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147 |
* |
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148 |
* first_min_element(first, last, comp) |
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* Effect: std::min_element(first, last, comp); |
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150 |
* |
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* last_min_element(first, last) |
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* Effect: reverse( std::min_element(reverse(last), reverse(first)) ); |
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153 |
* |
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* last_min_element(first, last, comp) |
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* Effect: reverse( std::min_element(reverse(last), reverse(first), comp) ); |
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156 |
* |
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157 |
* first_max_element(first, last) |
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* Effect: std::max_element(first, last); |
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159 |
* |
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* first_max_element(first, last, comp) |
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* Effect: max_element(first, last); |
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162 |
* |
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* last_max_element(first, last) |
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* Effect: reverse( std::max_element(reverse(last), reverse(first)) ); |
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165 |
* |
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* last_max_element(first, last, comp) |
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* Effect: reverse( std::max_element(reverse(last), reverse(first), comp) ); |
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168 |
* |
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* first_min_first_max_element(first, last) |
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* Effect: std::make_pair( first_min_element(first, last), |
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* first_max_element(first, last) ); |
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172 |
* |
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* first_min_first_max_element(first, last, comp) |
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* Effect: std::make_pair( first_min_element(first, last, comp), |
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* first_max_element(first, last, comp) ); |
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176 |
* |
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* first_min_last_max_element(first, last) |
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* Effect: std::make_pair( first_min_element(first, last), |
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* last_max_element(first, last) ); |
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* |
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* first_min_last_max_element(first, last, comp) |
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* Effect: std::make_pair( first_min_element(first, last, comp), |
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* last_max_element(first, last, comp) ); |
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* |
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* last_min_first_max_element(first, last) |
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* Effect: std::make_pair( last_min_element(first, last), |
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* first_max_element(first, last) ); |
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* |
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* last_min_first_max_element(first, last, comp) |
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* Effect: std::make_pair( last_min_element(first, last, comp), |
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* first_max_element(first, last, comp) ); |
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* |
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* last_min_last_max_element(first, last) |
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* Effect: std::make_pair( last_min_element(first, last), |
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* last_max_element(first, last) ); |
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* |
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* last_min_last_max_element(first, last, comp) |
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* Effect: std::make_pair( last_min_element(first, last, comp), |
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* last_max_element(first, last, comp) ); |
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*/ |
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201 |
|
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namespace boost { |
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|
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// Min_element and max_element variants |
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|
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namespace detail { // common base for the overloads |
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template <typename ForwardIter, class BinaryPredicate> |
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ForwardIter |
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basic_first_min_element(ForwardIter first, ForwardIter last, |
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BinaryPredicate comp) |
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{ |
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if (first == last) return last; |
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ForwardIter min_result = first; |
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while (++first != last) |
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if (comp(first, min_result)) |
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min_result = first; |
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return min_result; |
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} |
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template <typename ForwardIter, class BinaryPredicate> |
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ForwardIter |
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basic_last_min_element(ForwardIter first, ForwardIter last, |
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BinaryPredicate comp) |
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{ |
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if (first == last) return last; |
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ForwardIter min_result = first; |
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while (++first != last) |
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if (!comp(min_result, first)) |
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min_result = first; |
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return min_result; |
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} |
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template <typename ForwardIter, class BinaryPredicate> |
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ForwardIter |
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basic_first_max_element(ForwardIter first, ForwardIter last, |
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BinaryPredicate comp) |
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{ |
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if (first == last) return last; |
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ForwardIter max_result = first; |
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while (++first != last) |
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if (comp(max_result, first)) |
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max_result = first; |
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return max_result; |
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} |
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|
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template <typename ForwardIter, class BinaryPredicate> |
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ForwardIter |
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basic_last_max_element(ForwardIter first, ForwardIter last, |
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BinaryPredicate comp) |
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{ |
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if (first == last) return last; |
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ForwardIter max_result = first; |
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while (++first != last) |
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if (!comp(first, max_result)) |
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max_result = first; |
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return max_result; |
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} |
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|
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} // namespace detail |
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|
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template <typename ForwardIter> |
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ForwardIter |
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first_min_element(ForwardIter first, ForwardIter last) |
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{ |
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return detail::basic_first_min_element(first, last, |
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detail::less_over_iter<ForwardIter>() ); |
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} |
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|
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template <typename ForwardIter, class BinaryPredicate> |
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ForwardIter |
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first_min_element(ForwardIter first, ForwardIter last, BinaryPredicate comp) |
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{ |
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return detail::basic_first_min_element(first, last, |
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detail::binary_pred_over_iter<ForwardIter,BinaryPredicate>(comp) ); |
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} |
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|
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template <typename ForwardIter> |
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ForwardIter |
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last_min_element(ForwardIter first, ForwardIter last) |
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{ |
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return detail::basic_last_min_element(first, last, |
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detail::less_over_iter<ForwardIter>() ); |
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} |
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|
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template <typename ForwardIter, class BinaryPredicate> |
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ForwardIter |
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last_min_element(ForwardIter first, ForwardIter last, BinaryPredicate comp) |
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{ |
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return detail::basic_last_min_element(first, last, |
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detail::binary_pred_over_iter<ForwardIter,BinaryPredicate>(comp) ); |
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} |
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|
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template <typename ForwardIter> |
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ForwardIter |
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first_max_element(ForwardIter first, ForwardIter last) |
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{ |
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return detail::basic_first_max_element(first, last, |
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detail::less_over_iter<ForwardIter>() ); |
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} |
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|
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template <typename ForwardIter, class BinaryPredicate> |
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ForwardIter |
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first_max_element(ForwardIter first, ForwardIter last, BinaryPredicate comp) |
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{ |
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return detail::basic_first_max_element(first, last, |
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detail::binary_pred_over_iter<ForwardIter,BinaryPredicate>(comp) ); |
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} |
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|
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template <typename ForwardIter> |
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ForwardIter |
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last_max_element(ForwardIter first, ForwardIter last) |
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{ |
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|
314 |
return detail::basic_last_max_element(first, last, |
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|
315 |
detail::less_over_iter<ForwardIter>() ); |
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|
316 |
} |
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|
317 |
|
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|
318 |
template <typename ForwardIter, class BinaryPredicate> |
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|
319 |
ForwardIter |
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|
320 |
last_max_element(ForwardIter first, ForwardIter last, BinaryPredicate comp) |
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|
321 |
{ |
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|
322 |
return detail::basic_last_max_element(first, last, |
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|
323 |
detail::binary_pred_over_iter<ForwardIter,BinaryPredicate>(comp) ); |
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|
324 |
} |
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|
325 |
|
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|
326 |
|
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|
327 |
// Minmax_element variants -- comments removed |
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|
328 |
|
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|
329 |
namespace detail { |
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|
330 |
|
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|
331 |
template <typename ForwardIter, class BinaryPredicate> |
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|
332 |
std::pair<ForwardIter,ForwardIter> |
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|
333 |
basic_first_min_last_max_element(ForwardIter first, ForwardIter last, |
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|
334 |
BinaryPredicate comp) |
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|
335 |
{ |
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|
336 |
if (first == last) |
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|
337 |
return std::make_pair(last,last); |
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|
338 |
|
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|
339 |
ForwardIter min_result = first; |
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|
340 |
ForwardIter max_result = first; |
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|
341 |
|
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|
342 |
ForwardIter second = ++first; |
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|
343 |
if (second == last) |
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|
344 |
return std::make_pair(min_result, max_result); |
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|
345 |
|
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parents:
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|
346 |
if (comp(second, min_result)) |
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|
347 |
min_result = second; |
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|
348 |
else |
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|
349 |
max_result = second; |
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|
350 |
|
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|
351 |
first = ++second; if (first != last) ++second; |
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|
352 |
while (second != last) { |
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|
353 |
if (!comp(second, first)) { |
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|
354 |
if (comp(first, min_result)) |
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|
355 |
min_result = first; |
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parents:
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|
356 |
if (!comp(second, max_result)) |
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|
357 |
max_result = second; |
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|
358 |
} else { |
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|
359 |
if (comp(second, min_result)) |
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|
360 |
min_result = second; |
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parents:
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|
361 |
if (!comp(first, max_result)) |
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|
362 |
max_result = first; |
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|
363 |
} |
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|
364 |
first = ++second; if (first != last) ++second; |
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|
365 |
} |
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parents:
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|
366 |
|
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parents:
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|
367 |
if (first != last) { |
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parents:
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|
368 |
if (comp(first, min_result)) |
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|
369 |
min_result = first; |
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parents:
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|
370 |
else if (!comp(first, max_result)) |
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parents:
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|
371 |
max_result = first; |
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|
372 |
} |
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|
373 |
|
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|
374 |
return std::make_pair(min_result, max_result); |
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|
375 |
} |
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parents:
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|
376 |
|
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parents:
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|
377 |
template <typename ForwardIter, class BinaryPredicate> |
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|
378 |
std::pair<ForwardIter,ForwardIter> |
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parents:
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|
379 |
basic_last_min_first_max_element(ForwardIter first, ForwardIter last, |
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Revision: 201002
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parents:
diff
changeset
|
380 |
BinaryPredicate comp) |
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Revision: 201002
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parents:
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|
381 |
{ |
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Revision: 201002
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parents:
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|
382 |
if (first == last) return std::make_pair(last,last); |
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parents:
diff
changeset
|
383 |
|
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Revision: 201002
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parents:
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|
384 |
ForwardIter min_result = first; |
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Revision: 201002
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parents:
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|
385 |
ForwardIter max_result = first; |
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Revision: 201002
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parents:
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|
386 |
|
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Revision: 201002
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parents:
diff
changeset
|
387 |
ForwardIter second = ++first; |
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Revision: 201002
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parents:
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|
388 |
if (second == last) |
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Revision: 201002
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parents:
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|
389 |
return std::make_pair(min_result, max_result); |
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Revision: 201002
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parents:
diff
changeset
|
390 |
|
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Revision: 201002
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parents:
diff
changeset
|
391 |
if (comp(max_result, second)) |
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Revision: 201002
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parents:
diff
changeset
|
392 |
max_result = second; |
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Revision: 201002
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parents:
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|
393 |
else |
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Revision: 201002
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parents:
diff
changeset
|
394 |
min_result = second; |
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Revision: 201002
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parents:
diff
changeset
|
395 |
|
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Revision: 201002
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parents:
diff
changeset
|
396 |
first = ++second; if (first != last) ++second; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
397 |
while (second != last) { |
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Revision: 201002
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parents:
diff
changeset
|
398 |
if (comp(first, second)) { |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
399 |
if (!comp(min_result, first)) |
e4d67989cc36
Revision: 201002
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parents:
diff
changeset
|
400 |
min_result = first; |
e4d67989cc36
Revision: 201002
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parents:
diff
changeset
|
401 |
if (comp(max_result, second)) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
402 |
max_result = second; |
e4d67989cc36
Revision: 201002
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parents:
diff
changeset
|
403 |
} else { |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
404 |
if (!comp(min_result, second)) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
405 |
min_result = second; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
406 |
if (comp(max_result, first)) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
407 |
max_result = first; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
408 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
409 |
first = ++second; if (first != last) ++second; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
410 |
} |
e4d67989cc36
Revision: 201002
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parents:
diff
changeset
|
411 |
|
e4d67989cc36
Revision: 201002
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parents:
diff
changeset
|
412 |
if (first != last) { |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
413 |
if (!comp(min_result, first)) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
414 |
min_result = first; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
415 |
else if (comp(max_result, first)) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
416 |
max_result = first; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
417 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
418 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
419 |
return std::make_pair(min_result, max_result); |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
420 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
421 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
422 |
template <typename ForwardIter, class BinaryPredicate> |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
423 |
std::pair<ForwardIter,ForwardIter> |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
424 |
basic_last_min_last_max_element(ForwardIter first, ForwardIter last, |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
425 |
BinaryPredicate comp) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
426 |
{ |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
427 |
if (first == last) return std::make_pair(last,last); |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
428 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
429 |
ForwardIter min_result = first; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
430 |
ForwardIter max_result = first; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
431 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
432 |
ForwardIter second = first; ++second; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
433 |
if (second == last) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
434 |
return std::make_pair(min_result,max_result); |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
435 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
436 |
ForwardIter potential_max_result = last; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
437 |
if (comp(first, second)) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
438 |
max_result = second; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
439 |
else { |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
440 |
min_result = second; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
441 |
potential_max_result = second; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
442 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
443 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
444 |
first = ++second; if (first != last) ++second; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
445 |
while (second != last) { |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
446 |
if (comp(first, second)) { |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
447 |
if (!comp(min_result, first)) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
448 |
min_result = first; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
449 |
if (!comp(second, max_result)) { |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
450 |
max_result = second; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
451 |
potential_max_result = last; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
452 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
453 |
} else { |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
454 |
if (!comp(min_result, second)) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
455 |
min_result = second; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
456 |
if (!comp(first, max_result)) { |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
457 |
max_result = first; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
458 |
potential_max_result = second; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
459 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
460 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
461 |
first = ++second; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
462 |
if (first != last) ++second; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
463 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
464 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
465 |
if (first != last) { |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
466 |
if (!comp(min_result, first)) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
467 |
min_result = first; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
468 |
if (!comp(first, max_result)) { |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
469 |
max_result = first; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
470 |
potential_max_result = last; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
471 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
472 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
473 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
474 |
if (potential_max_result != last |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
475 |
&& !comp(potential_max_result, max_result)) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
476 |
max_result = potential_max_result; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
477 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
478 |
return std::make_pair(min_result,max_result); |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
479 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
480 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
481 |
} // namespace detail |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
482 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
483 |
template <typename ForwardIter> |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
484 |
inline std::pair<ForwardIter,ForwardIter> |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
485 |
first_min_first_max_element(ForwardIter first, ForwardIter last) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
486 |
{ |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
487 |
return minmax_element(first, last); |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
488 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
489 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
490 |
template <typename ForwardIter, class BinaryPredicate> |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
491 |
inline std::pair<ForwardIter,ForwardIter> |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
492 |
first_min_first_max_element(ForwardIter first, ForwardIter last, |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
493 |
BinaryPredicate comp) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
494 |
{ |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
495 |
return minmax_element(first, last, comp); |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
496 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
497 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
498 |
template <typename ForwardIter> |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
499 |
std::pair<ForwardIter,ForwardIter> |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
500 |
first_min_last_max_element(ForwardIter first, ForwardIter last) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
501 |
{ |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
502 |
return detail::basic_first_min_last_max_element(first, last, |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
503 |
detail::less_over_iter<ForwardIter>() ); |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
504 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
505 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
506 |
template <typename ForwardIter, class BinaryPredicate> |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
507 |
inline std::pair<ForwardIter,ForwardIter> |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
508 |
first_min_last_max_element(ForwardIter first, ForwardIter last, |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
509 |
BinaryPredicate comp) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
510 |
{ |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
511 |
return detail::basic_first_min_last_max_element(first, last, |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
512 |
detail::binary_pred_over_iter<ForwardIter,BinaryPredicate>(comp) ); |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
513 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
514 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
515 |
template <typename ForwardIter> |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
516 |
std::pair<ForwardIter,ForwardIter> |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
517 |
last_min_first_max_element(ForwardIter first, ForwardIter last) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
518 |
{ |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
519 |
return detail::basic_last_min_first_max_element(first, last, |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
520 |
detail::less_over_iter<ForwardIter>() ); |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
521 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
522 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
523 |
template <typename ForwardIter, class BinaryPredicate> |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
524 |
inline std::pair<ForwardIter,ForwardIter> |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
525 |
last_min_first_max_element(ForwardIter first, ForwardIter last, |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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BinaryPredicate comp) |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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{ |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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return detail::basic_last_min_first_max_element(first, last, |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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detail::binary_pred_over_iter<ForwardIter,BinaryPredicate>(comp) ); |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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} |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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531 |
|
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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template <typename ForwardIter> |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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std::pair<ForwardIter,ForwardIter> |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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last_min_last_max_element(ForwardIter first, ForwardIter last) |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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{ |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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return detail::basic_last_min_last_max_element(first, last, |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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detail::less_over_iter<ForwardIter>() ); |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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} |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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changeset
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540 |
template <typename ForwardIter, class BinaryPredicate> |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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inline std::pair<ForwardIter,ForwardIter> |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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last_min_last_max_element(ForwardIter first, ForwardIter last, |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
543 |
BinaryPredicate comp) |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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{ |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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return detail::basic_last_min_last_max_element(first, last, |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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changeset
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detail::binary_pred_over_iter<ForwardIter,BinaryPredicate>(comp) ); |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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} |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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|
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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} // namespace boost |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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|
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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#endif // BOOST_ALGORITHM_MINMAX_ELEMENT_HPP |