mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-12-25 21:35:41 +00:00
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
#ifndef SPROUT_NUMERIC_FIXED_IOTA_HPP
|
|
#define SPROUT_NUMERIC_FIXED_IOTA_HPP
|
|
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/index_tuple.hpp>
|
|
#include <sprout/container/traits.hpp>
|
|
#include <sprout/container/functions.hpp>
|
|
#include <sprout/iterator/operation.hpp>
|
|
#include <sprout/algorithm/fixed/result_of.hpp>
|
|
|
|
namespace sprout {
|
|
namespace fixed {
|
|
namespace detail {
|
|
template<typename Container, typename T, sprout::index_t... Indexes>
|
|
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Container>::type
|
|
iota_impl(
|
|
Container const& cont, sprout::index_tuple<Indexes...>,
|
|
T value,
|
|
typename sprout::container_traits<Container>::difference_type offset,
|
|
typename sprout::container_traits<Container>::size_type size
|
|
)
|
|
{
|
|
return sprout::remake<Container>(
|
|
cont,
|
|
sprout::size(cont),
|
|
(Indexes >= offset && Indexes < offset + size
|
|
? value + (Indexes - offset)
|
|
: *sprout::next(sprout::internal_begin(cont), Indexes)
|
|
)...
|
|
);
|
|
}
|
|
} // namespace detail
|
|
//
|
|
// iota
|
|
//
|
|
template<typename Container, typename T>
|
|
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Container>::type
|
|
iota(Container const& cont, T value) {
|
|
return sprout::fixed::detail::iota_impl(
|
|
cont,
|
|
sprout::index_range<0, sprout::container_traits<Container>::static_size>::make(),
|
|
value,
|
|
sprout::internal_begin_offset(cont),
|
|
sprout::size(cont)
|
|
);
|
|
}
|
|
} // namespace fixed
|
|
|
|
using sprout::fixed::iota;
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_NUMERIC_FIXED_IOTA_HPP
|