sparrow::null_count_policy Concept Reference

Concept that checks if a type is a valid null count policy. More...

#include <null_count_policy.hpp>

Concept definition

template<typename P>
concept sparrow::null_count_policy =  requires(P p, P other, bool b, typename P::size_type s, const std::uint8_t* data) {
    { P::track_null_count } -> std::convertible_to<bool>;
    { p.update_null_count(b, b) } -> std::same_as<void>;
    { p.swap_null_count(other) } -> std::same_as<void>;
    { p.clear_null_count() } -> std::same_as<void>;
    { p.set_null_count(s) } -> std::same_as<void>;
    { p.initialize_null_count(data, s, s) } -> std::same_as<void>;
    { p.recompute_null_count(data, s, s) } -> std::same_as<void>;
}

Detailed Description

Concept that checks if a type is a valid null count policy.

A valid policy must:

• Have a static constexpr bool member 'track_null_count'
• Provide update_null_count(bool, bool), swap(), clear(), set_null_count(), initialize(), and recompute() methods

Definition at line 209 of file null_count_policy.hpp.