mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-11-14 10:39:05 +00:00
55 lines
2 KiB
C++
55 lines
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_NUMERIC_CXX14_ADJACENT_DIFFERENCE_HPP
|
||
|
|
#define SPROUT_NUMERIC_CXX14_ADJACENT_DIFFERENCE_HPP
|
||
|
|
|
||
|
|
#include <iterator>
|
||
|
|
#include <sprout/config.hpp>
|
||
|
|
#include <sprout/utility/move.hpp>
|
||
|
|
#include <sprout/iterator/type_traits/is_iterator_of.hpp>
|
||
|
|
#include <sprout/type_traits/enabler_if.hpp>
|
||
|
|
#include HDR_FUNCTIONAL_SSCRISK_CEL_OR_SPROUT
|
||
|
|
|
||
|
|
namespace sprout {
|
||
|
|
//
|
||
|
|
// 26.7.5 Adjacent difference
|
||
|
|
//
|
||
|
|
template<
|
||
|
|
typename InputIterator, typename OutputIterator, typename BinaryOperation,
|
||
|
|
typename sprout::enabler_if<sprout::is_iterator_outputable<OutputIterator>::value>::type = sprout::enabler
|
||
|
|
>
|
||
|
|
inline SPROUT_CXX14_CONSTEXPR OutputIterator
|
||
|
|
adjacent_difference(InputIterator first, InputIterator last, OutputIterator result, BinaryOperation binary_op) {
|
||
|
|
typedef typename std::iterator_traits<InputIterator>::value_type value_type;
|
||
|
|
if (first == last) {
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
value_type acc = *first;
|
||
|
|
*result = acc;
|
||
|
|
while (++first != last) {
|
||
|
|
value_type val = *first;
|
||
|
|
*++result = binary_op(val, acc);
|
||
|
|
acc = sprout::move(val);
|
||
|
|
}
|
||
|
|
return ++result;
|
||
|
|
}
|
||
|
|
template<
|
||
|
|
typename InputIterator, typename OutputIterator,
|
||
|
|
typename sprout::enabler_if<sprout::is_iterator_outputable<OutputIterator>::value>::type = sprout::enabler
|
||
|
|
>
|
||
|
|
inline SPROUT_CXX14_CONSTEXPR OutputIterator
|
||
|
|
adjacent_difference(InputIterator first, InputIterator last, OutputIterator result) {
|
||
|
|
return sprout::adjacent_difference(
|
||
|
|
first, last, result,
|
||
|
|
NS_SSCRISK_CEL_OR_SPROUT::minus<typename std::iterator_traits<InputIterator>::value_type>()
|
||
|
|
);
|
||
|
|
}
|
||
|
|
} // namespace sprout
|
||
|
|
|
||
|
|
#endif // #ifndef SPROUT_NUMERIC_CXX14_ADJACENT_DIFFERENCE_HPP
|