Re: calling sub and returning value from the same line


The stupid question is the question not asked
	PerlMonks

Re: calling sub and returning value from the same line

by jdalbec (Deacon)

on Jan 09, 2005 at 20:43 UTC ( #420744=note: print w/replies, xml )

Need Help??

in reply to calling sub and returning value from the same line

Is error() returning a false value? That would cause the behavior you describe. Remember that <EXPR> and <EXPR> executes the second expression only if the first expression is true. To avoid this dependence on the return value of error() you could try

unless (open FH, ">$_[0]") {
        error($!, "not able to write to file $_[0]");
        return undef;
}
[download]

Comment on Re: calling sub and returning value from the same line Select or Download Code

Replies are listed 'Best First'.
Re^2: calling sub and returning value from the same line by dpuu (Chaplain) on Jan 09, 2005 at 21:00 UTC
Another alternative is to replace the "and" operator with a comma: `open FH, ">$file" or error("msg"), return undef;` [download] If you do this, you must use parentheses to call the "error" function. --Dave Opinions my own; statements of fact may be in error.	[reply] [d/l]

In Section Seekers of Perl Wisdom

Domain Nodelet^?

www.com | www.net | www.org

Node Status^?

node history
Node Type: note [id://420744]
help

Chatterbox^?

How do I use this? • Last hour • Other CB clients

Other Users^?

Others meditating upon the Monastery: (4)

As of 2023-12-10 04:33 GMT

Sections^?

Information^?

Find Nodes^?

Leftovers^?

Voting Booth^?

Notices^?