Re: __FILE__ and __LINE_

If you're interested in emitting warnings with filenames and line numbers, you might want warn(), which is documented in perlfunc.

    warn "I'm a warning about something";
[download]

will produce

  I'm a warning about something at demo.pl line 47.
[download]

die() does the same, but stops execution (unless caught in an exception handler).

Comment on Re: __FILE__ and __LINE__ for Perl? Select or Download Code

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Re: Re: __FILE__ and __LINE__ for Perl? by bm (Hermit) on Oct 03, 2003 at 12:02 UTC
Just to be a little more specific, note that `warn "I'm a warning about something";` [download] does not contain a trailing newline. If your warning message does contain `\n` as the last character, `warn` will not include `at demo.pl line 47.` See `perldoc -f warn` -- bm	[reply] [d/l] [select]