Sprout/sprout/algorithm/cxx14/partition.hpp
2014-01-08 16:48:12 +09:00

34 lines
1.2 KiB
C++

/*=============================================================================
Copyright (c) 2011-2014 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#ifndef SPROUT_CXX14_ALGORITHM_PARTITION_HPP
#define SPROUT_CXX14_ALGORITHM_PARTITION_HPP
#include <sprout/config.hpp>
#include <sprout/algorithm/find_if.hpp>
#include <sprout/algorithm/find_if_not.hpp>
#include <sprout/algorithm/cxx14/iter_swap.hpp>
namespace sprout {
//
// 25.3.13 Partitions
//
template<typename ForwardIterator, typename Predicate>
inline SPROUT_CXX14_CONSTEXPR ForwardIterator
partition(ForwardIterator first, ForwardIterator last, Predicate pred) {
first = sprout::find_if_not(first, last, pred);
ForwardIterator it = sprout::find_if(first, last, pred);
while (it != last) {
sprout::iter_swap(first, it);
first = sprout::find_if_not(first, last, pred);
it = sprout::find_if(it, last, pred);
}
return first;
}
} // namespace sprout
#endif // #ifndef SPROUT_CXX14_ALGORITHM_PARTITION_HPP