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Sprout/sprout/numeric/fit/adjacent_difference.hpp
2012-04-01 22:15:09 +09:00

77 lines
2.7 KiB
C++

#ifndef SPROUT_NUMERIC_FIT_ADJACENT_DIFFERENCE_HPP
#define SPROUT_NUMERIC_FIT_ADJACENT_DIFFERENCE_HPP
#include <sprout/config.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/numeric/fixed/adjacent_difference.hpp>
#include <sprout/algorithm/fit/result_of.hpp>
#include <sprout/sub_array.hpp>
#include HDR_ALGORITHM_SSCRISK_CEL_OR_SPROUT
#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT
namespace sprout {
namespace fit {
namespace detail {
template<typename InputIterator, typename Result>
SPROUT_CONSTEXPR inline typename sprout::fit::result_of::algorithm<Result>::type adjacent_difference_impl(
InputIterator first,
InputIterator last,
Result const& result,
typename sprout::container_traits<Result>::difference_type offset
)
{
return sprout::sub_copy(
sprout::get_internal(sprout::fixed::adjacent_difference(first, last, result)),
offset,
offset + NS_SSCRISK_CEL_OR_SPROUT::min(NS_SSCRISK_CEL_OR_SPROUT::distance(first, last), sprout::size(result))
);
}
} // namespace detail
//
// adjacent_difference
//
template<typename InputIterator, typename Result>
SPROUT_CONSTEXPR inline typename sprout::fit::result_of::algorithm<Result>::type adjacent_difference(
InputIterator first,
InputIterator last,
Result const& result
)
{
return sprout::fit::detail::adjacent_difference_impl(first, last, result, sprout::internal_begin_offset(result));
}
namespace detail {
template<typename InputIterator, typename Result, typename BinaryOperation>
SPROUT_CONSTEXPR inline typename sprout::fit::result_of::algorithm<Result>::type adjacent_difference_impl(
InputIterator first,
InputIterator last,
Result const& result,
BinaryOperation binary_op,
typename sprout::container_traits<Result>::difference_type offset
)
{
return sprout::sub_copy(
sprout::get_internal(sprout::fixed::adjacent_difference(first, last, result, binary_op)),
offset,
offset + NS_SSCRISK_CEL_OR_SPROUT::min(NS_SSCRISK_CEL_OR_SPROUT::distance(first, last), sprout::size(result))
);
}
} // namespace detail
//
// adjacent_difference
//
template<typename InputIterator, typename Result, typename BinaryOperation>
SPROUT_CONSTEXPR inline typename sprout::fit::result_of::algorithm<Result>::type adjacent_difference(
InputIterator first,
InputIterator last,
Result const& result,
BinaryOperation binary_op
)
{
return sprout::fit::detail::adjacent_difference_impl(first, last, result, binary_op, sprout::internal_begin_offset(result));
}
} // namespace fit
} // namespace sprout
#endif // #ifndef SPROUT_NUMERIC_FIT_ADJACENT_DIFFERENCE_HPP