mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-12-27 21:45:42 +00:00
228 lines
10 KiB
C++
228 lines
10 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_EXCLUSIVE_SCAN_HPP
|
|
#define SPROUT_NUMERIC_FIXED_EXCLUSIVE_SCAN_HPP
|
|
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/container/traits.hpp>
|
|
#include <sprout/container/functions.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... 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
|
|
exclusive_scan_impl_1(
|
|
InputIterator const&, InputIterator const&, Result const& result,
|
|
typename sprout::container_traits<Result>::size_type,
|
|
typename sprout::container_traits<Result>::value_type const& value,
|
|
typename sprout::container_traits<Result>::value_type const& temp,
|
|
Args const&... args
|
|
)
|
|
{
|
|
return sprout::remake<Result>(result, sprout::size(result), args..., value);
|
|
}
|
|
template<typename InputIterator, typename Result, 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
|
|
exclusive_scan_impl_1(
|
|
InputIterator const& first, InputIterator const& last, Result const& result,
|
|
typename sprout::container_traits<Result>::size_type size,
|
|
typename sprout::container_traits<Result>::value_type const& value,
|
|
typename sprout::container_traits<Result>::value_type const& temp,
|
|
Args const&... args
|
|
)
|
|
{
|
|
return first != last && sizeof...(Args) + 1 < size
|
|
? exclusive_scan_impl_1(sprout::next(first), last, result, size, value + temp, *first, args..., value)
|
|
: sprout::detail::container_complate(result, args..., value)
|
|
;
|
|
}
|
|
template<typename InputIterator, typename Result, typename T>
|
|
inline SPROUT_CONSTEXPR typename std::enable_if<
|
|
sprout::container_traits<Result>::static_size == 0,
|
|
typename sprout::fixed::results::algorithm<Result>::type
|
|
>::type
|
|
exclusive_scan_impl(
|
|
InputIterator const&, InputIterator const&, Result const& result, T,
|
|
typename sprout::container_traits<Result>::size_type
|
|
)
|
|
{
|
|
return sprout::detail::container_complate(result);
|
|
}
|
|
template<typename InputIterator, typename Result, typename T>
|
|
inline SPROUT_CONSTEXPR typename std::enable_if<
|
|
sprout::container_traits<Result>::static_size == 1,
|
|
typename sprout::fixed::results::algorithm<Result>::type
|
|
>::type
|
|
exclusive_scan_impl(
|
|
InputIterator const&, InputIterator const&, Result const& result, T init,
|
|
typename sprout::container_traits<Result>::size_type
|
|
)
|
|
{
|
|
return sprout::detail::container_complate(result, init);
|
|
}
|
|
template<typename InputIterator, typename Result, typename T>
|
|
inline SPROUT_CONSTEXPR typename std::enable_if<
|
|
(sprout::container_traits<Result>::static_size > 1),
|
|
typename sprout::fixed::results::algorithm<Result>::type
|
|
>::type
|
|
exclusive_scan_impl(
|
|
InputIterator const& first, InputIterator const& last, Result const& result, T init,
|
|
typename sprout::container_traits<Result>::size_type size
|
|
)
|
|
{
|
|
return first != last
|
|
? exclusive_scan_impl_1(sprout::next(first), last, result, size, init, *first)
|
|
: sprout::detail::container_complate(result, init)
|
|
;
|
|
}
|
|
} // namespace detail
|
|
//
|
|
// exclusive_scan
|
|
//
|
|
template<typename InputIterator, typename Result, typename T>
|
|
inline SPROUT_CONSTEXPR typename sprout::fixed::results::algorithm<Result>::type
|
|
exclusive_scan(InputIterator first, InputIterator last, Result const& result, T init) {
|
|
return sprout::fixed::detail::exclusive_scan_impl(first, last, result, init, sprout::size(result));
|
|
}
|
|
template<typename Result, typename InputIterator, typename T>
|
|
inline SPROUT_CONSTEXPR typename sprout::fixed::results::algorithm<Result>::type
|
|
exclusive_scan(InputIterator first, InputIterator last, T init) {
|
|
return sprout::fixed::exclusive_scan<Result>(first, last, sprout::pit<Result>(), init);
|
|
}
|
|
|
|
namespace detail {
|
|
template<typename InputIterator, typename Result, typename BinaryOperation, 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
|
|
exclusive_scan_impl_1(
|
|
InputIterator const&, InputIterator const&, Result const& result, BinaryOperation,
|
|
typename sprout::container_traits<Result>::size_type,
|
|
typename sprout::container_traits<Result>::value_type const& value,
|
|
typename sprout::container_traits<Result>::value_type const& temp,
|
|
Args const&... args
|
|
)
|
|
{
|
|
return sprout::remake<Result>(result, sprout::size(result), args..., value);
|
|
}
|
|
template<typename InputIterator, typename Result, typename BinaryOperation, 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
|
|
exclusive_scan_impl_1(
|
|
InputIterator const& first, InputIterator const& last, Result const& result, BinaryOperation binary_op,
|
|
typename sprout::container_traits<Result>::size_type size,
|
|
typename sprout::container_traits<Result>::value_type const& value,
|
|
typename sprout::container_traits<Result>::value_type const& temp,
|
|
Args const&... args
|
|
)
|
|
{
|
|
return first != last && sizeof...(Args) + 1 < size
|
|
? exclusive_scan_impl_1(sprout::next(first), last, result, binary_op, size, binary_op(value, temp), *first, args..., value)
|
|
: sprout::detail::container_complate(result, args..., value)
|
|
;
|
|
}
|
|
template<typename InputIterator, typename Result, typename T, typename BinaryOperation>
|
|
inline SPROUT_CONSTEXPR typename std::enable_if<
|
|
sprout::container_traits<Result>::static_size == 0,
|
|
typename sprout::fixed::results::algorithm<Result>::type
|
|
>::type
|
|
exclusive_scan_impl(
|
|
InputIterator const&, InputIterator const&, Result const& result, T, BinaryOperation,
|
|
typename sprout::container_traits<Result>::size_type
|
|
)
|
|
{
|
|
return sprout::detail::container_complate(result);
|
|
}
|
|
template<typename InputIterator, typename Result, typename T, typename BinaryOperation>
|
|
inline SPROUT_CONSTEXPR typename std::enable_if<
|
|
sprout::container_traits<Result>::static_size == 1,
|
|
typename sprout::fixed::results::algorithm<Result>::type
|
|
>::type
|
|
exclusive_scan_impl(
|
|
InputIterator const&, InputIterator const&, Result const& result, T init, BinaryOperation,
|
|
typename sprout::container_traits<Result>::size_type
|
|
)
|
|
{
|
|
return sprout::detail::container_complate(result, init);
|
|
}
|
|
template<typename InputIterator, typename Result, typename T, typename BinaryOperation>
|
|
inline SPROUT_CONSTEXPR typename std::enable_if<
|
|
(sprout::container_traits<Result>::static_size > 1),
|
|
typename sprout::fixed::results::algorithm<Result>::type
|
|
>::type
|
|
exclusive_scan_impl(
|
|
InputIterator const& first, InputIterator const& last, Result const& result, T init, BinaryOperation binary_op,
|
|
typename sprout::container_traits<Result>::size_type size
|
|
)
|
|
{
|
|
return first != last
|
|
? exclusive_scan_impl_1(sprout::next(first), last, result, binary_op, size, init, *first)
|
|
: sprout::detail::container_complate(result, init)
|
|
;
|
|
}
|
|
} // namespace detail
|
|
//
|
|
// exclusive_scan
|
|
//
|
|
template<typename InputIterator, typename Result, typename T, typename BinaryOperation>
|
|
inline SPROUT_CONSTEXPR typename sprout::fixed::results::algorithm<Result>::type
|
|
exclusive_scan(InputIterator first, InputIterator last, Result const& result, T init, BinaryOperation binary_op) {
|
|
return sprout::fixed::detail::exclusive_scan_impl(first, last, result, init, binary_op, sprout::size(result));
|
|
}
|
|
template<typename Result, typename InputIterator, typename T, typename BinaryOperation>
|
|
inline SPROUT_CONSTEXPR typename sprout::fixed::results::algorithm<Result>::type
|
|
exclusive_scan(InputIterator first, InputIterator last, T init, BinaryOperation binary_op) {
|
|
return sprout::fixed::exclusive_scan(first, last, sprout::pit<Result>(), init, binary_op);
|
|
}
|
|
} // namespace fixed
|
|
|
|
template<
|
|
typename InputIterator, typename Result, 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
|
|
exclusive_scan(InputIterator first, InputIterator last, Result const& result, T init) {
|
|
return sprout::fixed::exclusive_scan(first, last, result, init);
|
|
}
|
|
template<typename Result, typename InputIterator, typename T>
|
|
inline SPROUT_CONSTEXPR typename sprout::fixed::results::algorithm<Result>::type
|
|
exclusive_scan(InputIterator first, InputIterator last, T init) {
|
|
return sprout::fixed::exclusive_scan<Result>(first, last, init);
|
|
}
|
|
|
|
template<
|
|
typename InputIterator, typename Result, typename T, typename BinaryOperation,
|
|
typename sprout::enabler_if<!sprout::is_iterator_outputable<Result>::value>::type = sprout::enabler
|
|
>
|
|
inline SPROUT_CONSTEXPR typename sprout::fixed::results::algorithm<Result>::type
|
|
exclusive_scan(InputIterator first, InputIterator last, Result const& result, T init, BinaryOperation binary_op) {
|
|
return sprout::fixed::exclusive_scan(first, last, result, init, binary_op);
|
|
}
|
|
template<typename Result, typename InputIterator, typename T, typename BinaryOperation>
|
|
inline SPROUT_CONSTEXPR typename sprout::fixed::results::algorithm<Result>::type
|
|
exclusive_scan(InputIterator first, InputIterator last, T init, BinaryOperation binary_op) {
|
|
return sprout::fixed::exclusive_scan<Result>(first, last, init, binary_op);
|
|
}
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_NUMERIC_FIXED_EXCLUSIVE_SCAN_HPP
|