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support STL container: set operation algorithms

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bolero-MURAKAMI 2013-01-26 21:30:29 +09:00
parent ee8602f6a3
commit 271f348972
17 changed files with 1488 additions and 76 deletions
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49
sprout/algorithm/next_union.hpp Normal file
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#ifndef SPROUT_ALGORITHM_NEXT_UNION_HPP
#define SPROUT_ALGORITHM_NEXT_UNION_HPP
#include <sprout/config.hpp>
#include <sprout/iterator/operation.hpp>
#include <sprout/functional/less.hpp>
#include <sprout/utility/pair.hpp>
namespace sprout {
//
// next_union
//
// recursion depth:
// O(1)
//
template<typename InputIterator1, typename InputIterator2, typename Compare>
inline SPROUT_CONSTEXPR sprout::pair<InputIterator1, InputIterator2>
next_union(
InputIterator1 first1, InputIterator1 last1,
InputIterator2 first2, InputIterator2 last2,
Compare comp
)
{
typedef sprout::pair<InputIterator1, InputIterator2> type;
return first1 != last1
? first2 != last2
? comp(*first1, *first2)
? type(sprout::next(first1), first2)
: comp(*first2, *first1)
? type(first1, sprout::next(first2))
: type(sprout::next(first1), sprout::next(first2))
: type(sprout::next(first1), first2)
: first2 != last2
? type(first1, sprout::next(first2))
: type(last1, last2)
;
}
template<typename InputIterator1, typename InputIterator2>
inline SPROUT_CONSTEXPR sprout::pair<InputIterator1, InputIterator2>
next_union(
InputIterator1 first1, InputIterator1 last1,
InputIterator2 first2, InputIterator2 last2
)
{
return sprout::next_union(first1, last1, first2, last2, sprout::less<>());
}
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_NEXT_UNION_HPP