std::predicate3

[concept.predicate], concept predicate

Usage

#include <concepts>

Concept definition

    template<typename _Fn, typename... _Args>
    concept predicate = regular_invocable<_Fn, _Args...>
      && __detail::__boolean_testable<invoke_result_t<_Fn, _Args...>>

Detailed Description

[concept.predicate], concept predicate