Specifies that a type has a known method for creating a corresponding key. More...

Concept definition

template<typename Key, class Value>
concept QxJson::json_keyable =  requires(const Value& v) {
    { keygen<Key, Value>(v) } -> std::same_as<Key>;
}

Detailed Description

Satisfied if a keygen() specialization exists for Key and Value that creates a key from an instance of Value.