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Perl in a Nutshell, 2nd Edition
book

Perl in a Nutshell, 2nd Edition

by Nathan Patwardhan, Ellen Siever, Stephen Spainhour
June 2002
Beginner content levelBeginner
759 pages
80h 42m
English
O'Reilly Media, Inc.
Content preview from Perl in a Nutshell, 2nd Edition

Name

warn

Synopsis

warn msg
                  

Produces a message on STDERR just like die, but doesn’t try to exit or throw an exception. For example:

warn "Debug enabled" if $debug;

If the message supplied is null, the message "Something's wrong" is used. As with die, a message not ending with a newline will have file and line number information automatically appended. The warn operator is unrelated to the -w switch.

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Publisher Resources

ISBN: 0596002416Errata Page