Daftar Isi

• prototype FUNCTION

  Returns the prototype of a function as a string (or undef if thefunction has no prototype). FUNCTION is a reference to, or the name of,the function whose prototype you want to retrieve.

  If FUNCTION is a string starting with CORE::, the rest is taken as aname for a Perl builtin. If the builtin is not overridable (such asqw//) or if its arguments cannot be adequately expressed by a prototype(such as system), prototype() returns undef, because the builtindoes not really behave like a Perl function. Otherwise, the stringdescribing the equivalent prototype is returned.