use strict; use warnings; $_ = \&noSuchFunction; print("$_\n"); $_ = *noSuchFunction; print("$_\n"); $_ = *noSuchFunction{CODE}; print("$_\n"); $_ = \*noSuchFunction; print("$_\n"); #### CODE(0x225e58) *main::noSuchFunction CODE(0x225e58) GLOB(0x226b9c)