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Answer: How can I write a function's output to a scalar?

by ackohno (Scribe)
on Jul 13, 2002 at 03:13 UTC ( #181441=categorized answer: print w/replies, xml ) Need Help??

Q&A > subroutines > How can I write a function's output to a scalar? - Answer contributed by ackohno

The question is a bit vague, I assume you mean to do something like this:
#!/usr/bin/perl -w use strict; my ($num1,$num2); $num1=2; $num2=sum($num1,$num1); print "$num2\n"; # Sum: returns the sum of all arguments. sub sum { my $ret; $ret=0; for(@_){$ret+=$_} return $ret; }
return tells perl what the subroutine should give back when called, so $num2 is given the final value of $ret in the subroutine sum.

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