database::concepts::Predicate Concept Reference

A callable type that returns a boolean value. More...

#include <concepts.h>

Concept definition

template<typename F, typename... Args>
concept database::concepts::Predicate =  Invocable<F, Args...> &&
    std::convertible_to<std::invoke_result_t<F, Args...>, bool>

Detailed Description

A callable type that returns a boolean value.

Definition at line 100 of file concepts.h.