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Home: Perl Programming Help: Beginner: when to use & to call subroutine

newbie Deleted Apr 22, 2000, 11:14 AM Post #1 of 2 (338 views) when to use & to call subroutine Can't Post the & to call a function/subroutine. However, I generally leave it off and it works OK. Why/why is it optional and when is it required ?

Cure User Apr 22, 2000, 12:48 PM Post #2 of 2 (338 views) Re: when to use & to call subroutine [In reply to] Can't Post Hi in perl5 the & was made optional if it looks like a sub call with parens. without parens it is a bareword and needs to be declared in advance sothe compiler can parse it as a sub call. in perl4 the only way to call a sub was with &. you can still use & in perl5 for a bareword call like &foo but most prefer to do foo() these days. so & is not needed except for some special cases Cure

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