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Sprout/sprout/algorithm/fixed/set_union.hpp
2012-04-01 22:15:09 +09:00

114 lines
3.9 KiB
C++

#ifndef SPROUT_ALGORITHM_FIXED_SET_UNION_HPP
#define SPROUT_ALGORITHM_FIXED_SET_UNION_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/iterator/operation.hpp>
#include <sprout/algorithm/fixed/result_of.hpp>
#include <sprout/detail/container_complate.hpp>
#include HDR_FUNCTIONAL_SSCRISK_CEL_OR_SPROUT
namespace sprout {
namespace fixed {
namespace detail {
template<typename InputIterator1, typename InputIterator2, typename Result, typename Compare, typename... Args>
SPROUT_CONSTEXPR inline typename std::enable_if<
sprout::container_traits<Result>::static_size == sizeof...(Args),
typename sprout::fixed::result_of::algorithm<Result>::type
>::type set_union_impl(
InputIterator1 first1,
InputIterator1 last1,
InputIterator2 first2,
InputIterator2 last2,
Result const& result,
Compare comp,
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 Compare, typename... Args>
SPROUT_CONSTEXPR inline typename std::enable_if<
sprout::container_traits<Result>::static_size != sizeof...(Args),
typename sprout::fixed::result_of::algorithm<Result>::type
>::type set_union_impl(
InputIterator1 first1,
InputIterator1 last1,
InputIterator2 first2,
InputIterator2 last2,
Result const& result,
Compare comp,
typename sprout::container_traits<Result>::size_type size,
Args const&... args
)
{
return sizeof...(Args) < size
? first1 != last1
? first2 != last2
? comp(*first1, *first2)
? sprout::fixed::detail::set_union_impl(sprout::next(first1), last1, first2, last2, result, comp, size, args..., *first1)
: comp(*first2, *first1)
? sprout::fixed::detail::set_union_impl(first1, last1, sprout::next(first2), last2, result, comp, size, args..., *first2)
: sprout::fixed::detail::set_union_impl(sprout::next(first1), last1, sprout::next(first2), last2, result, comp, size, args..., *first1)
: sprout::fixed::detail::set_union_impl(sprout::next(first1), last1, first2, last2, result, comp, size, args..., *first1)
: first2 != last2
? sprout::fixed::detail::set_union_impl(first1, last1, sprout::next(first2), last2, result, comp, size, args..., *first2)
: sprout::detail::container_complate(result, args...)
: sprout::detail::container_complate(result, args...)
;
}
} // namespace detail
//
// set_union
//
template<typename InputIterator1, typename InputIterator2, typename Result, typename Compare>
SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Result>::type set_union(
InputIterator1 first1,
InputIterator1 last1,
InputIterator2 first2,
InputIterator2 last2,
Result const& result,
Compare comp
)
{
return sprout::fixed::detail::set_union_impl(
first1,
last1,
first2,
last2,
result,
comp,
sprout::size(result)
);
}
//
// set_union
//
template<typename InputIterator1, typename InputIterator2, typename Result>
SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Result>::type set_union(
InputIterator1 first1,
InputIterator1 last1,
InputIterator2 first2,
InputIterator2 last2,
Result const& result
)
{
return sprout::fixed::detail::set_union_impl(
first1,
last1,
first2,
last2,
result,
NS_SSCRISK_CEL_OR_SPROUT::less<typename sprout::container_traits<Result>::value_type>(),
sprout::size(result)
);
}
} // namespace fixed
using sprout::fixed::set_union;
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_FIXED_SET_UNION_HPP