[func.wrap.func.nullptr] (original) (raw)
22 General utilities library [utilities]
22.10 Function objects [function.objects]
22.10.17 Polymorphic function wrappers [func.wrap]
22.10.17.3 Class template function [func.wrap.func]
22.10.17.3.7 Null pointer comparison operator functions [func.wrap.func.nullptr]
template<class R, class... ArgTypes> bool operator==(const function<R(ArgTypes...)>& f, nullptr_t) noexcept;
Returns: !f.