mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-11-16 10:49:05 +00:00
55 lines
1.9 KiB
C++
55 lines
1.9 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_ALGORITHM_CXX14_MERGE_HPP
|
||
|
|
#define SPROUT_ALGORITHM_CXX14_MERGE_HPP
|
||
|
|
|
||
|
|
#include <sprout/config.hpp>
|
||
|
|
#include <sprout/iterator/type_traits/is_iterator_of.hpp>
|
||
|
|
#include <sprout/type_traits/enabler_if.hpp>
|
||
|
|
#include <sprout/algorithm/cxx14/copy.hpp>
|
||
|
|
#include <sprout/functional/less.hpp>
|
||
|
|
|
||
|
|
namespace sprout {
|
||
|
|
//
|
||
|
|
// 25.4.4 Merge
|
||
|
|
//
|
||
|
|
template<
|
||
|
|
typename InputIterator1, typename InputIterator2, typename OutputIterator, typename Compare,
|
||
|
|
typename sprout::enabler_if<sprout::is_iterator_outputable<OutputIterator>::value>::type = sprout::enabler
|
||
|
|
>
|
||
|
|
inline SPROUT_CXX14_CONSTEXPR OutputIterator
|
||
|
|
merge(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, OutputIterator result, Compare comp) {
|
||
|
|
while (true) {
|
||
|
|
if (first1 == last1) {
|
||
|
|
return std::copy(first2, last2, result);
|
||
|
|
}
|
||
|
|
if (first2 == last2) {
|
||
|
|
return std::copy(first1, last1, result);
|
||
|
|
}
|
||
|
|
*result++ = comp(*first2, *first1)
|
||
|
|
? *first2++
|
||
|
|
: *first1++
|
||
|
|
;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
template<
|
||
|
|
typename InputIterator1, typename InputIterator2, typename OutputIterator,
|
||
|
|
typename sprout::enabler_if<sprout::is_iterator_outputable<OutputIterator>::value>::type = sprout::enabler
|
||
|
|
>
|
||
|
|
inline SPROUT_CXX14_CONSTEXPR OutputIterator
|
||
|
|
merge(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, OutputIterator result) {
|
||
|
|
return sprout::merge(
|
||
|
|
first1, last1, first2, last2, result,
|
||
|
|
sprout::less<>()
|
||
|
|
);
|
||
|
|
}
|
||
|
|
} // namespace sprout
|
||
|
|
|
||
|
|
#endif // #ifndef SPROUT_ALGORITHM_CXX14_MERGE_HPP
|