Sprout/sprout/algorithm/fit/transform.hpp
2019-01-07 17:47:17 +09:00

75 lines
3.3 KiB
C++

/*=============================================================================
Copyright (c) 2011-2019 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_FIT_TRANSFORM_HPP
#define SPROUT_ALGORITHM_FIT_TRANSFORM_HPP
#include <sprout/config.hpp>
#include <sprout/iterator/distance.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/algorithm/fixed/transform.hpp>
#include <sprout/algorithm/fit/results.hpp>
#include <sprout/sub_array/sub_array.hpp>
#include <sprout/sub_array/sub.hpp>
#include <sprout/iterator/type_traits/category.hpp>
namespace sprout {
namespace fit {
namespace detail {
template<typename InputIterator, typename Result, typename UnaryOperation>
inline SPROUT_CONSTEXPR typename sprout::fit::results::algorithm<Result>::type
transform_impl(
InputIterator const& first, InputIterator const& last, Result const& result, UnaryOperation op,
typename sprout::container_traits<Result>::difference_type offset
)
{
return sprout::sub_copy(
sprout::get_internal(sprout::fixed::transform(first, last, result, op)),
offset,
offset + sprout::fit_size(result, sprout::distance(first, last))
);
}
} // namespace detail
//
// transform
//
template<typename InputIterator, typename Result, typename UnaryOperation>
inline SPROUT_CONSTEXPR typename sprout::fit::results::algorithm<Result>::type
transform(InputIterator first, InputIterator last, Result const& result, UnaryOperation op) {
static_assert(sprout::is_forward_iterator<InputIterator>::value, "Sorry, not implemented.");
return sprout::fit::detail::transform_impl(first, last, result, op, sprout::internal_begin_offset(result));
}
namespace detail {
template<typename InputIterator1, typename InputIterator2, typename Result, typename BinaryOperation>
inline SPROUT_CONSTEXPR typename sprout::fit::results::algorithm<Result>::type
transform_impl(
InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, Result const& result, BinaryOperation op,
typename sprout::container_traits<Result>::difference_type offset
)
{
return sprout::sub_copy(
sprout::get_internal(sprout::fixed::transform(first1, last1, first2, result, op)),
offset,
offset + sprout::fit_size(result, sprout::distance(first1, last1))
);
}
} // namespace detail
//
// transform
//
template<typename InputIterator1, typename InputIterator2, typename Result, typename BinaryOperation>
inline SPROUT_CONSTEXPR typename sprout::fit::results::algorithm<Result>::type
transform(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, Result const& result, BinaryOperation op) {
static_assert(sprout::is_forward_iterator<InputIterator1>::value, "Sorry, not implemented.");
return sprout::fit::detail::transform_impl(first1, last1, first2, result, op, sprout::internal_begin_offset(result));
}
} // namespace fit
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_FIT_TRANSFORM_HPP