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Re^6: Use reference for functions in functions

by T_I (Novice)
on Feb 28, 2013 at 09:05 UTC ( #1021024=note: print w/ replies, xml ) Need Help??


in reply to Re^5: Use reference for functions in functions
in thread Use reference for functions in functions

What I was doing was:

func.pl

sub adding ($$) { my $first=shift; my $second=shift; my $third=($first + $second); print("$first + $second = $third\n"); } sub adding ($$$) { my $first=shift; my $second=shift; my $third=shift; print("$first + $second = $third\n"); } 1;

test.pl(v1):
#!/usr/bin/perl use strict; require "func.pl"; my $one = 1; my $two = 2; my $answer = ( $one + $two); adding($one,$two);


rewriting to test.pl(v2):
#!/usr/bin/perl use strict; require "func.pl"; my $one = 1; my $two = 2; my $answer = ( $one + $two); adding($one,$two,$answer);

But I didn't test it myself during the rewrite and removing the ($$) version. I just tried to recreate it and got the errors and unpredictable behavior. Thanks for the pointer, Next time I'll just rewrite with an optional 3rd option in the original function and solve my rewrites that way.

Seems I have a lot to refresh after 3 years of not coding.


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