boxes::hash::HashFamily64 Concept Reference

Defines a minimal interface for HashFamily functor. More...

#include <hash_utils.hpp>

Concept definition

template<typename T>
concept boxes::hash::HashFamily64 = 
    requires(T t, std::size_t i, const uint8_t *data, std::size_t len) {
      { t(i, data, len) };
      { t.final(i) } -> std::same_as<uint64_t>;
      { t.reset() };
      { t.size() } -> std::same_as<std::size_t>;
    }

Detailed Description

Defines a minimal interface for HashFamily functor.

HashFamily is a functor that applies a family of hash functions to a given data chunk. Each hash family functor of type T must implement the following interface:

• operator()(std::size_t idx, const uint8_t *data, std::size_t len): updates the ith hash with a new chunk of data
• final(std::size_t i) -> uint64_t: returns the final hash value for the ith hash function
• reset(): resets the hash state of all hash functions
• size() -> std::size_t: returns the number of hash functions in the family

Template Parameters

T	type of the hash family functor

Definition at line 57 of file hash_utils.hpp.