Sprout/sprout/numeric/fixed/transform_inclusive_scan.hpp
2019-01-07 17:47:17 +09:00

183 lines
9.7 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_NUMERIC_FIXED_TRANSFORM_INCLUSIVE_SCAN_HPP
#define SPROUT_NUMERIC_FIXED_TRANSFORM_INCLUSIVE_SCAN_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/iterator/operation.hpp>
#include <sprout/iterator/type_traits/is_iterator_of.hpp>
#include <sprout/type_traits/enabler_if.hpp>
#include <sprout/algorithm/fixed/results.hpp>
#include <sprout/pit/pit.hpp>
#include <sprout/detail/container_complate.hpp>
namespace sprout {
namespace fixed {
namespace detail {
template<typename InputIterator, typename Result, typename BinaryOperation, typename UnaryOperation, typename... Args>
inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::container_traits<Result>::static_size == sizeof...(Args) + 1,
typename sprout::fixed::results::algorithm<Result>::type
>::type
transform_inclusive_scan_impl_1(
InputIterator const&, InputIterator const&, Result const& result, BinaryOperation, UnaryOperation,
typename sprout::container_traits<Result>::size_type,
typename sprout::container_traits<Result>::value_type const& value,
Args const&... args
)
{
return sprout::remake<Result>(result, sprout::size(result), args..., value);
}
template<typename InputIterator, typename Result, typename BinaryOperation, typename UnaryOperation, typename... Args>
inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::container_traits<Result>::static_size != sizeof...(Args) + 1,
typename sprout::fixed::results::algorithm<Result>::type
>::type
transform_inclusive_scan_impl_1(
InputIterator const& first, InputIterator const& last, Result const& result, BinaryOperation binary_op, UnaryOperation unary_op,
typename sprout::container_traits<Result>::size_type size,
typename sprout::container_traits<Result>::value_type const& value,
Args const&... args
)
{
return first != last && sizeof...(Args) + 1 < size
? transform_inclusive_scan_impl_1(sprout::next(first), last, result, binary_op, unary_op, size, binary_op(value, unary_op(*first)), args..., value)
: sprout::detail::container_complate(result, args..., value)
;
}
template<typename InputIterator, typename Result, typename BinaryOperation, typename UnaryOperation>
inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::container_traits<Result>::static_size == 0,
typename sprout::fixed::results::algorithm<Result>::type
>::type
transform_inclusive_scan_impl(
InputIterator const&, InputIterator const&, Result const& result, BinaryOperation, UnaryOperation,
typename sprout::container_traits<Result>::size_type
)
{
return sprout::remake<Result>(result, sprout::size(result));
}
template<typename InputIterator, typename Result, typename BinaryOperation, typename UnaryOperation>
inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::container_traits<Result>::static_size != 0,
typename sprout::fixed::results::algorithm<Result>::type
>::type
transform_inclusive_scan_impl(
InputIterator const& first, InputIterator const& last, Result const& result, BinaryOperation binary_op, UnaryOperation unary_op,
typename sprout::container_traits<Result>::size_type size
)
{
return first != last
? transform_inclusive_scan_impl_1(sprout::next(first), last, result, binary_op, unary_op, size, unary_op(*first))
: sprout::detail::container_complate(result)
;
}
} // namespace detail
//
// transform_inclusive_scan
//
template<typename InputIterator, typename Result, typename BinaryOperation, typename UnaryOperation>
inline SPROUT_CONSTEXPR typename sprout::fixed::results::algorithm<Result>::type
transform_inclusive_scan(InputIterator first, InputIterator last, Result const& result, BinaryOperation binary_op, UnaryOperation unary_op) {
return sprout::fixed::detail::transform_inclusive_scan_impl(first, last, result, binary_op, unary_op, sprout::size(result));
}
template<typename Result, typename InputIterator, typename BinaryOperation, typename UnaryOperation>
inline SPROUT_CONSTEXPR typename sprout::fixed::results::algorithm<Result>::type
transform_inclusive_scan(InputIterator first, InputIterator last, BinaryOperation binary_op, UnaryOperation unary_op) {
return sprout::fixed::transform_inclusive_scan(first, last, sprout::pit<Result>(), binary_op, unary_op);
}
namespace detail {
template<typename InputIterator, typename Result, typename BinaryOperation, typename UnaryOperation, typename T>
inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::container_traits<Result>::static_size == 0,
typename sprout::fixed::results::algorithm<Result>::type
>::type
transform_inclusive_scan_impl(
InputIterator const&, InputIterator const&, Result const& result, BinaryOperation, T,
typename sprout::container_traits<Result>::size_type
)
{
return sprout::remake<Result>(result, sprout::size(result));
}
template<typename InputIterator, typename Result, typename BinaryOperation, typename UnaryOperation, typename T>
inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::container_traits<Result>::static_size == 1,
typename sprout::fixed::results::algorithm<Result>::type
>::type
transform_inclusive_scan_impl(
InputIterator const&, InputIterator const&, Result const& result, BinaryOperation, T init,
typename sprout::container_traits<Result>::size_type
)
{
return sprout::remake<Result>(result, sprout::size(result), init);
}
template<typename InputIterator, typename Result, typename BinaryOperation, typename UnaryOperation, typename T>
inline SPROUT_CONSTEXPR typename std::enable_if<
(sprout::container_traits<Result>::static_size > 1),
typename sprout::fixed::results::algorithm<Result>::type
>::type
transform_inclusive_scan_impl(
InputIterator const& first, InputIterator const& last, Result const& result, BinaryOperation binary_op, UnaryOperation unary_op, T init,
typename sprout::container_traits<Result>::size_type size
)
{
return first != last
? transform_inclusive_scan_impl_1(first, last, result, binary_op, unary_op, size, init)
: sprout::detail::container_complate(result, init)
;
}
} // namespace detail
//
// transform_inclusive_scan
//
template<typename InputIterator, typename Result, typename BinaryOperation, typename UnaryOperation, typename T>
inline SPROUT_CONSTEXPR typename sprout::fixed::results::algorithm<Result>::type
transform_inclusive_scan(InputIterator first, InputIterator last, Result const& result, BinaryOperation binary_op, UnaryOperation unary_op, T init) {
return sprout::fixed::detail::transform_inclusive_scan_impl(first, last, result, binary_op, unary_op, init, sprout::size(result));
}
template<typename Result, typename InputIterator, typename BinaryOperation, typename UnaryOperation, typename T>
inline SPROUT_CONSTEXPR typename sprout::fixed::results::algorithm<Result>::type
transform_inclusive_scan(InputIterator first, InputIterator last, BinaryOperation binary_op, UnaryOperation unary_op, T init) {
return sprout::fixed::transform_inclusive_scan(first, last, sprout::pit<Result>(), binary_op, unary_op, init);
}
} // namespace fixed
template<
typename InputIterator, typename Result, typename BinaryOperation, typename UnaryOperation,
typename sprout::enabler_if<!sprout::is_iterator_outputable<Result>::value>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR typename sprout::fixed::results::algorithm<Result>::type
transform_inclusive_scan(InputIterator first, InputIterator last, Result const& result, BinaryOperation binary_op, UnaryOperation unary_op) {
return sprout::fixed::transform_inclusive_scan(first, last, result, binary_op, unary_op);
}
template<typename Result, typename InputIterator, typename BinaryOperation, typename UnaryOperation>
inline SPROUT_CONSTEXPR typename sprout::fixed::results::algorithm<Result>::type
transform_inclusive_scan(InputIterator first, InputIterator last, BinaryOperation binary_op, UnaryOperation unary_op) {
return sprout::fixed::transform_inclusive_scan<Result>(first, last, binary_op, unary_op);
}
template<
typename InputIterator, typename Result, typename BinaryOperation, typename UnaryOperation, typename T,
typename sprout::enabler_if<!sprout::is_iterator_outputable<Result>::value>::type = sprout::enabler
>
inline SPROUT_CONSTEXPR typename sprout::fixed::results::algorithm<Result>::type
transform_inclusive_scan(InputIterator first, InputIterator last, Result const& result, BinaryOperation binary_op, UnaryOperation unary_op, T init) {
return sprout::fixed::transform_inclusive_scan(first, last, result, binary_op, unary_op, init);
}
template<typename Result, typename InputIterator, typename BinaryOperation, typename UnaryOperation, typename T>
inline SPROUT_CONSTEXPR typename sprout::fixed::results::algorithm<Result>::type
transform_inclusive_scan(InputIterator first, InputIterator last, BinaryOperation binary_op, UnaryOperation unary_op, T init) {
return sprout::fixed::transform_inclusive_scan<Result>(first, last, binary_op, unary_op, unary_op, init);
}
} // namespace sprout
#endif // #ifndef SPROUT_NUMERIC_FIXED_TRANSFORM_INCLUSIVE_SCAN_HPP