19 General utilities library [utilities]

19.14 Function objects [function.objects]

19.14.14 Polymorphic function wrappers [func.wrap]

19.14.14.1 Class bad_­function_­call [func.wrap.badcall]

19.14.14.1.1 Constructor [func.wrap.badcall.const]

bad_function_call() noexcept;
Effects: Constructs a bad_­function_­call object.
Ensures: what() returns an implementation-defined ntbs.