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Re: Idomatic Handling of Subroutine Error

by andye (Curate)
on Sep 19, 2001 at 15:21 UTC ( [id://113291]=note: print w/replies, xml ) Need Help??


in reply to Idomatic Handling of Subroutine Error

You're after something like this: 
unless ( $result = my_sub() ) {
   # handle error condition
}

[download]
I've often seen this, which is quite similar: 
my $result;
unless ( my_sub(\$result) ) {
   # handle error condition
}

[download]
where &my_sub might look like this: 
sub my_sub {
   my $r_result = shift;
   $$r_result = whatever();
   was_there_an_error() ? 0 : 1 ;
}

[download]
andy.

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