Sprout/sprout/algorithm/fixed/replace_copy.hpp
2011-10-02 00:19:13 +09:00

68 lines
2.2 KiB
C++

#ifndef SPROUT_ALGORITHM_FIXED_REPLACE_COPY_HPP
#define SPROUT_ALGORITHM_FIXED_REPLACE_COPY_HPP
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/index_tuple.hpp>
#include <sprout/fixed_container/traits.hpp>
#include <sprout/fixed_container/functions.hpp>
#include <sprout/iterator/operation.hpp>
#include <sprout/algorithm/fixed/result_of.hpp>
#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT_DETAIL
namespace sprout {
namespace fixed {
namespace detail {
template<typename Iterator, typename Result, typename T, std::ptrdiff_t... Indexes>
SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Result>::type replace_copy_impl(
Iterator first,
Iterator last,
Result const& result,
sprout::index_tuple<Indexes...>,
T const& old_value,
T const& new_value,
typename sprout::fixed_container_traits<Result>::difference_type offset,
typename sprout::fixed_container_traits<Result>::size_type size,
typename sprout::fixed_container_traits<Result>::size_type input_size
)
{
return sprout::remake_clone<Result, Result>(
result,
sprout::size(result),
(Indexes >= offset && Indexes < offset + size && Indexes < offset + input_size
? *sprout::next(first, Indexes - offset) == old_value ? new_value : *sprout::next(first, Indexes - offset)
: *sprout::next(sprout::fixed_begin(result), Indexes)
)...
);
}
} // namespace detail
//
// replace_copy
//
template<typename Iterator, typename Result, typename T>
SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Result>::type replace_copy(
Iterator first,
Iterator last,
Result const& result,
T const& old_value,
T const& new_value
)
{
return sprout::fixed::detail::replace_copy_impl(
first,
last,
result,
typename sprout::index_range<0, sprout::fixed_container_traits<Result>::fixed_size>::type(),
old_value,
new_value,
sprout::fixed_begin_offset(result),
sprout::size(result),
NS_SSCRISK_CEL_OR_SPROUT_DETAIL::distance(first, last)
);
}
} // namespace fixed
using sprout::fixed::replace_copy;
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_FIXED_REPLACE_COPY_HPP