Sprout/sprout/utility/pair/hash.hpp

31 lines
691 B
C++
Raw Normal View History

#ifndef SPROUT_UTILITY_PAIR_HASH_HPP
#define SPROUT_UTILITY_PAIR_HASH_HPP
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/utility/pair/pair.hpp>
2013-02-04 09:42:39 +00:00
#include <sprout/functional/hash.hpp>
namespace sprout {
//
// hash_value
//
template<typename T1, typename T2>
inline SPROUT_CONSTEXPR std::size_t
hash_value(sprout::pair<T1, T2> const& v) {
return sprout::hash_values(v.first, v.second);
}
} // namespace sprout
namespace std {
//
// hash
//
template<typename T1, typename T2>
struct hash<sprout::pair<T1, T2> >
: public sprout::hash<sprout::pair<T1, T2> >
{};
} // namespace std
#endif // #ifndef SPROUT_UTILITY_PAIR_HASH_HPP