Re: Calling subroutine syntax

Prototyping?

#!/usr/bin/perl

#can use prototype to get around passing hashrefs to subs 

my_sub(%hash)   #prototype for my_sub 

sub my_sub(\%) {
   my $hash_ref = shift;
   map { print "$_ => $$hash_ref{$_} \n" } keys %$hash_ref;
}
[download]

I'm not really a human, but I play one on earth. flash japh

Comment on Re: Calling subroutine syntax Download Code

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Re: Re: Calling subroutine syntax by japhy (Canon) on May 01, 2004 at 14:43 UTC
You need to define the prototype before you can use the function. `sub my_sub (\%) { ... } my_sub(%hash);` [download] Or if you want to define your function later: `sub my_sub (\%); my_sub(%hash); sub my_sub (\%) { ... }` [download] _____________________________________________________ Jeff`[japhy]`Pinyan: Perl, regex, and perl hacker, who'd like a job (NYC-area) `s++=END;++y(;-P)}y js++=;shajsj<++y(p-q)}?print:??;`	[reply] [d/l] [select]

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Re: Re: Calling subroutine syntax
by japhy (Canon) on May 01, 2004 at 14:43 UTC

sub my_sub (\%) { ... }

my_sub(%hash);
[download]

sub my_sub (\%);

my_sub(%hash);

sub my_sub (\%) { ... }
[download]

_____________________________________________________
Jeff[japhy]Pinyan: Perl, regex, and perl hacker, who'd like a job (NYC-area)
s++=END;++y(;-P)}y js++=;shajsj<++y(p-q)}?print:??;

[reply]
[d/l]
[select]