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Sprout/sprout/algorithm/fit/copy_while.hpp
2013-02-07 23:12:57 +09:00

48 lines
1.9 KiB
C++

#ifndef SPROUT_ALGORITHM_FIT_COPY_WHILE_HPP
#define SPROUT_ALGORITHM_FIT_COPY_WHILE_HPP
#include <sprout/config.hpp>
#include <sprout/iterator/distance.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/algorithm/fixed/copy_while.hpp>
#include <sprout/algorithm/fit/result_of.hpp>
#include <sprout/algorithm/find_if_not.hpp>
#include <sprout/sub_array/sub_array.hpp>
#include <sprout/sub_array/sub.hpp>
#include HDR_ALGORITHM_SSCRISK_CEL_OR_SPROUT
#include <sprout/iterator/type_traits/is_iterator.hpp>
namespace sprout {
namespace fit {
namespace detail {
template<typename InputIterator, typename Result, typename Predicate>
inline SPROUT_CONSTEXPR typename sprout::fit::result_of::algorithm<Result>::type
copy_while_impl(
InputIterator first, InputIterator last, Result const& result, Predicate pred,
typename sprout::container_traits<Result>::difference_type offset
)
{
return sprout::sub_copy(
sprout::get_internal(sprout::fixed::copy_while(first, last, result, pred)),
offset,
offset + NS_SSCRISK_CEL_OR_SPROUT::min(
sprout::distance(first, sprout::find_if_not(first, last, pred)),
sprout::size(result)
)
);
}
} // namespace detail
//
// copy_while
//
template<typename InputIterator, typename Result, typename Predicate>
inline SPROUT_CONSTEXPR typename sprout::fit::result_of::algorithm<Result>::type
copy_while(InputIterator first, InputIterator last, Result const& result, Predicate pred) {
static_assert(sprout::is_forward_iterator<InputIterator>::value, "Sorry, not implemented.");
return sprout::fit::detail::copy_while_impl(first, last, result, pred, sprout::internal_begin_offset(result));
}
} // namespace fit
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_FIT_COPY_WHILE_HPP