Sprout/sprout/rational/hash.hpp
2013-04-21 13:30:30 +09:00

38 lines
858 B
C++

#ifndef SPROUT_RATIONAL_HASH_HPP
#define SPROUT_RATIONAL_HASH_HPP
#include <cstddef>
#include <functional>
#include <sprout/config.hpp>
#include <sprout/rational/rational.hpp>
#include <sprout/functional/hash.hpp>
namespace sprout {
//
// hash_value
//
template<typename T>
inline SPROUT_CONSTEXPR std::size_t
hash_value(sprout::rational<T> const& v) {
return sprout::hash_values(v.numerator(), v.denominator());
}
} // namespace sprout
namespace std {
#if defined(__clang__)
# pragma clang diagnostic push
# pragma clang diagnostic ignored "-Wmismatched-tags"
#endif
//
// hash
//
template<typename T>
struct hash<sprout::rational<T> >
: public sprout::hash<sprout::rational<T> >
{};
#if defined(__clang__)
# pragma clang diagnostic pop
#endif
} // namespace std
#endif // SPROUT_RATIONAL_HASH_HPP