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

40 lines
1.2 KiB
C++

#ifndef SPROUT_ALGORITHM_FIND_FIRST_OF_HPP
#define SPROUT_ALGORITHM_FIND_FIRST_OF_HPP
#include <sprout/config.hpp>
#include <sprout/iterator/operation.hpp>
#include HDR_FUNCTIONAL_SSCRISK_CEL_OR_SPROUT
namespace sprout {
// Copyright (C) 2011 RiSK (sscrisk)
// 25.2.7 Find first
template<typename ForwardIterator1, typename ForwardIterator2, typename BinaryPredicate>
SPROUT_CONSTEXPR ForwardIterator1 find_first_of(
ForwardIterator1 first1,
ForwardIterator1 last1,
ForwardIterator2 first2,
ForwardIterator2 last2,
BinaryPredicate pred
)
{
return first1 == last1 || sprout::find_if(first2, last2, NS_SSCRISK_CEL_OR_SPROUT::bind2nd(pred, *first1)) != last2 ? first1
: sprout::find_first_of(sprout::next(first1), last1, first2, last2, pred)
;
}
template<typename ForwardIterator1, typename ForwardIterator2>
SPROUT_CONSTEXPR ForwardIterator1 find_first_of(
ForwardIterator1 first1,
ForwardIterator1 last1,
ForwardIterator2 first2,
ForwardIterator2 last2
)
{
return first1 == last1 || sprout::find(first2, last2, *first1) != last2 ? first1
: sprout::find_first_of(sprout::next(first1), last1, first2, last2)
;
}
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_FIND_FIRST_OF_HPP