mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-11-14 10:39:05 +00:00
38 lines
878 B
C++
38 lines
878 B
C++
#ifndef SPROUT_UTILITY_VALUE_HOLDER_HASH_HPP
|
|
#define SPROUT_UTILITY_VALUE_HOLDER_HASH_HPP
|
|
|
|
#include <cstddef>
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/utility/value_holder/value_holder.hpp>
|
|
#include <sprout/functional/hash.hpp>
|
|
|
|
namespace sprout {
|
|
//
|
|
// hash_value
|
|
//
|
|
template<typename T>
|
|
inline SPROUT_CONSTEXPR std::size_t
|
|
hash_value(sprout::value_holder<T> const& v) {
|
|
return sprout::to_hash(*v)
|
|
;
|
|
}
|
|
template<typename T>
|
|
inline SPROUT_CONSTEXPR std::size_t
|
|
hash_value(sprout::value_holder<T&> const& v) {
|
|
return v.is_initialized() ? sprout::to_hash(*v)
|
|
: 0
|
|
;
|
|
}
|
|
} // namespace sprout
|
|
|
|
namespace std {
|
|
//
|
|
// hash
|
|
//
|
|
template<typename T>
|
|
struct hash<sprout::value_holder<T> >
|
|
: public sprout::hash<sprout::value_holder<T> >
|
|
{};
|
|
} // namespace std
|
|
|
|
#endif // #ifndef SPROUT_UTILITY_VALUE_HOLDER_HASH_HPP
|