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Sprout/sprout/algorithm/fixed/transform.hpp

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#ifndef SPROUT_ALGORITHM_FIXED_TRANSFORM_HPP
#define SPROUT_ALGORITHM_FIXED_TRANSFORM_HPP
#include <iterator>
#include <type_traits>
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#include <sprout/config.hpp>
#include <sprout/index_tuple.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/iterator/operation.hpp>
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#include <sprout/algorithm/fixed/result_of.hpp>
#include <sprout/detail/container_complate.hpp>
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#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT
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namespace sprout {
namespace fixed {
namespace detail {
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template<typename RandomAccessIterator, typename Result, typename UnaryOperation, sprout::index_t... Indexes>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
transform_impl_ra(
RandomAccessIterator first, RandomAccessIterator last,
Result const& result, UnaryOperation op,
sprout::index_tuple<Indexes...>,
typename sprout::container_traits<Result>::difference_type offset,
typename sprout::container_traits<Result>::size_type size,
typename sprout::container_traits<Result>::size_type input_size
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)
{
return sprout::remake<Result>(
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result,
sprout::size(result),
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(Indexes >= offset && Indexes < offset + size && Indexes < offset + input_size
? op(first[Indexes - offset])
: *sprout::next(sprout::internal_begin(result), Indexes)
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)...
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);
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}
template<typename RandomAccessIterator, typename Result, typename UnaryOperation>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
transform(
RandomAccessIterator first, RandomAccessIterator last,
Result const& result, UnaryOperation op,
std::random_access_iterator_tag*
)
{
return sprout::fixed::detail::transform_impl_ra(
first, last,
result, op,
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sprout::index_range<0, sprout::container_traits<Result>::static_size>::make(),
sprout::internal_begin_offset(result),
sprout::size(result),
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NS_SSCRISK_CEL_OR_SPROUT::distance(first, last)
);
}
template<typename InputIterator, typename Result, typename UnaryOperation, typename... Args>
inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::container_traits<Result>::static_size == sizeof...(Args),
typename sprout::fixed::result_of::algorithm<Result>::type
>::type
transform_impl(
InputIterator first, InputIterator last,
Result const& result, UnaryOperation op,
typename sprout::container_traits<Result>::size_type size,
Args const&... args
)
{
return sprout::remake<Result>(result, sprout::size(result), args...);
}
template<typename InputIterator, typename Result, typename UnaryOperation, typename... Args>
inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::container_traits<Result>::static_size != sizeof...(Args),
typename sprout::fixed::result_of::algorithm<Result>::type
>::type
transform_impl(
InputIterator first, InputIterator last,
Result const& result, UnaryOperation op,
typename sprout::container_traits<Result>::size_type size,
Args const&... args
)
{
return first != last && sizeof...(Args) < size
? sprout::fixed::detail::transform_impl(sprout::next(first), last, result, op, size, args..., op(*first))
: sprout::detail::container_complate(result, args...)
;
}
template<typename InputIterator, typename Result, typename UnaryOperation>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
transform(
InputIterator first, InputIterator last,
Result const& result, UnaryOperation op,
void*
)
{
return sprout::fixed::detail::transform_impl(first, last, result, op, sprout::size(result));
}
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} // namespace detail
//
// transform
//
template<typename InputIterator, typename Result, typename UnaryOperation>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
transform(InputIterator first, InputIterator last, Result const& result, UnaryOperation op) {
typedef typename std::iterator_traits<InputIterator>::iterator_category* category;
return sprout::fixed::detail::transform(first, last, result, op, category());
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}
namespace detail {
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template<typename RandomAccessIterator1, typename RandomAccessIterator2, typename Result, typename BinaryOperation, sprout::index_t... Indexes>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
transform_impl_ra(
RandomAccessIterator1 first1, RandomAccessIterator1 last1, RandomAccessIterator2 first2,
Result const& result, BinaryOperation op,
sprout::index_tuple<Indexes...>,
typename sprout::container_traits<Result>::difference_type offset,
typename sprout::container_traits<Result>::size_type size,
typename sprout::container_traits<Result>::size_type input_size
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)
{
return sprout::remake<Result>(
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result,
sprout::size(result),
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(Indexes >= offset && Indexes < offset + size && Indexes < offset + input_size
? op(first1[Indexes - offset], first2[Indexes - offset])
: *sprout::next(sprout::internal_begin(result), Indexes)
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)...
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);
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}
template<typename RandomAccessIterator1, typename RandomAccessIterator2, typename Result, typename BinaryOperation>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
transform(
RandomAccessIterator1 first1, RandomAccessIterator1 last1, RandomAccessIterator2 first2,
Result const& result, BinaryOperation op,
std::random_access_iterator_tag*
)
{
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return sprout::fixed::detail::transform_impl_ra(
first1, last1, first2,
result, op,
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sprout::index_range<0, sprout::container_traits<Result>::static_size>::make(),
sprout::internal_begin_offset(result),
sprout::size(result),
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NS_SSCRISK_CEL_OR_SPROUT::distance(first1, last1)
);
}
template<typename InputIterator1, typename InputIterator2, typename Result, typename BinaryOperation, typename... Args>
inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::container_traits<Result>::static_size == sizeof...(Args),
typename sprout::fixed::result_of::algorithm<Result>::type
>::type
transform_impl(
InputIterator1 first1, InputIterator1 last1, InputIterator2 first2,
Result const& result, BinaryOperation op,
typename sprout::container_traits<Result>::size_type size,
Args const&... args
)
{
return sprout::remake<Result>(result, sprout::size(result), args...);
}
template<typename InputIterator1, typename InputIterator2, typename Result, typename BinaryOperation, typename... Args>
inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::container_traits<Result>::static_size != sizeof...(Args),
typename sprout::fixed::result_of::algorithm<Result>::type
>::type
transform_impl(
InputIterator1 first1, InputIterator1 last1, InputIterator2 first2,
Result const& result, BinaryOperation op,
typename sprout::container_traits<Result>::size_type size,
Args const&... args
)
{
return first1 != last1 && sizeof...(Args) < size
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? sprout::fixed::detail::transform_impl(sprout::next(first1), last1, sprout::next(first2), result, op, size, args..., op(*first1, *first2))
: sprout::detail::container_complate(result, args...)
;
}
template<typename InputIterator1, typename InputIterator2, typename Result, typename BinaryOperation>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
transform(
InputIterator1 first1, InputIterator1 last1, InputIterator2 first2,
Result const& result, BinaryOperation op,
void*
)
{
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return sprout::fixed::detail::transform_impl(first1, last1, first2, result, op, sprout::size(result));
}
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} // namespace detail
//
// transform
//
template<typename InputIterator1, typename InputIterator2, typename Result, typename BinaryOperation>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
transform(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, Result const& result, BinaryOperation op) {
typedef typename std::iterator_traits<InputIterator1>::iterator_category* category;
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return sprout::fixed::detail::transform(first1, last1, first2, result, op, category());
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}
} // namespace fixed
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using sprout::fixed::transform;
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} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_FIXED_TRANSFORM_HPP