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rename hash_values_combine -> hash_combine

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fix hash_range
This commit is contained in:
bolero-MURAKAMI 2013-02-04 22:13:27 +09:00
parent 4332b26a0e
commit 6e5f4c5606
6 changed files with 65 additions and 60 deletions
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34
sprout/functional/hash/hash_range.hpp
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@ -5,25 +5,49 @@
#include <sprout/config.hpp>
#include <sprout/functional/hash/hash_fwd.hpp>
#include <sprout/functional/hash/hash_combine.hpp>
#include <sprout/iterator/next.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/numeric/accumulate.hpp>
namespace sprout {
//
// hash_combine_accumulator
//
template<typename T = std::size_t>
struct hash_combine_accumulator {
public:
typedef T first_argument_type;
typedef T result_type;
public:
template<typename U>
SPROUT_CONSTEXPR T operator()(T const& seed, U const& v) const {
return sprout::hash_combine(seed, v);
}
};
//
// hash_range
//
template<typename InputIterator>
inline SPROUT_CONSTEXPR std::size_t
hash_range(std::size_t seed, InputIterator first, InputIterator last) {
return first != last
? sprout::hash_range(sprout::hash_combine(seed, *first), sprout::next(first), last)
: seed
;
return sprout::accumulate(first, last, seed, sprout::hash_combine_accumulator<>());
}
template<typename InputIterator>
inline SPROUT_CONSTEXPR std::size_t
hash_range(InputIterator first, InputIterator last) {
return sprout::hash_range(0, first, last);
}
template<typename InputRange>
inline SPROUT_CONSTEXPR std::size_t
hash_range(std::size_t seed, InputRange const& rng) {
return sprout::hash_range(seed, sprout::begin(rng), sprout::end(rng));
}
template<typename InputRange>
inline SPROUT_CONSTEXPR std::size_t
hash_range(InputRange const& rng) {
return sprout::hash_range(0, rng);
}
} // namespace sprout
#endif // #ifndef SPROUT_FUNCTIONAL_HASH_HASH_RANGE_HPP