mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-12-25 21:35:41 +00:00
62 lines
2 KiB
C++
62 lines
2 KiB
C++
|
/*=============================================================================
|
||
|
|
Copyright (c) 2011-2013 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_UNIQUE_COPY_HPP
|
||
|
|
#define SPROUT_CXX14_ALGORITHM_UNIQUE_COPY_HPP
|
||
|
|
|
||
|
|
#include <iterator>
|
||
|
|
#include <sprout/config.hpp>
|
||
|
|
#include <sprout/iterator/type_traits/is_iterator_of.hpp>
|
||
|
|
#include <sprout/type_traits/enabler_if.hpp>
|
||
|
|
|
||
|
|
namespace sprout {
|
||
|
|
//
|
||
|
|
// 25.3.9 Unique
|
||
|
|
//
|
||
|
|
template<
|
||
|
|
typename InputIterator, typename OutputIterator,
|
||
|
|
typename sprout::enabler_if<sprout::is_iterator_outputable<OutputIterator>::value>::type = sprout::enabler
|
||
|
|
>
|
||
|
|
inline SPROUT_CXX14_CONSTEXPR OutputIterator
|
||
|
|
unique_copy(InputIterator first, InputIterator last, OutputIterator result) {
|
||
|
|
if (first == last) {
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
typename std::iterator_traits<InputIterator>::value_type value = *first++;
|
||
|
|
*result++ = value;
|
||
|
|
for (; first != last; ++first) {
|
||
|
|
if (!(value == *first)) {
|
||
|
|
value = *first;
|
||
|
|
*result++ = value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<
|
||
|
|
typename InputIterator, typename OutputIterator, typename BinaryPredicate,
|
||
|
|
typename sprout::enabler_if<sprout::is_iterator_outputable<OutputIterator>::value>::type = sprout::enabler
|
||
|
|
>
|
||
|
|
inline SPROUT_CXX14_CONSTEXPR OutputIterator
|
||
|
|
unique_copy(InputIterator first, InputIterator last, OutputIterator result, BinaryPredicate pred) {
|
||
|
|
if (first == last) {
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
typename std::iterator_traits<InputIterator>::value_type value = *first++;
|
||
|
|
*result++ = value;
|
||
|
|
for (; first != last; ++first) {
|
||
|
|
if (!pred(value, *first)) {
|
||
|
|
value = *first;
|
||
|
|
*result++ = value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
} // namespace sprout
|
||
|
|
|
||
|
|
#endif // #ifndef SPROUT_CXX14_ALGORITHM_UNIQUE_COPY_HPP
|