emilib::HashCache< T > Class Template Reference

#include <hash_cache.hpp>

Public Member Functions
	HashCache (T value) noexcept
	HashCache (const HashCache &other)
const HashCache &	operator= (const HashCache &other)
	HashCache (HashCache &&other) noexcept
void	operator= (HashCache &&other) noexcept
void	swap (HashCache &other) noexcept
const T &	value () const
std::size_t	hash () const
	operator T ()

Friends
bool	operator== (const HashCache &a, const HashCache &b)
bool	operator!= (const HashCache &a, const HashCache &b)

Detailed Description

template<typename T>
class emilib::HashCache< T >

Wraps a value and memoizes the hash of that value. This can be used to speed up std::unoredred_set/unoredred_map or emilib::HashSet/HashMap when calculating the hash of the key is expensive. Example: HashMap<Key, Value> -> HashMap<HashCache<Key>, Value> Example: HashSet<Key, KeyHasher> -> HashSet<HashCache<Key>, HashCacheHasher<KeyHasher>>

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The documentation for this class was generated from the following file:

• emilib/hash_cache.hpp