Re: why does 'print ("hey)")' give a warning?

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Re: Re: why does 'print ("hey)")' give a warning? by tachyon (Chancellor) on Jul 09, 2001 at 14:27 UTC
`use warnings;` is only available on Perl 5.6.0 on up. -w works on all platforms (unix/win/mac/etc) with a Perl that supports warnings because the /perl executable looks for shebang line options regardless of whether the that platform actually uses the shebang line per se to target the perl exe. So to make your code backwards compatible with the still extremely common perl 5.5 use -w. You will find more discussion of this here use warnings vs. perl -w cheers tachyon s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print	[reply]
Re: Re: why does 'print ("hey)")' give a warning? by CharlesClarkson (Curate) on Jul 09, 2001 at 17:56 UTC
Take a look at perllexwarn (Perl Lexical Warnings) for way too much detail on the differences between `use warnings;`, `-w`, and `$^W`. HTH, Charles K. Clarkson	[reply] [d/l] [select]
Re: Re: Re: why does 'print ("hey)")' give a warning? by frag (Hermit) on Jul 10, 2001 at 03:00 UTC
Try this URL for perllexwarn, or perldoc's copy. Unfortunately it isn't in the Library, or http://www.perl.com. -- Frag.	[reply]
Re: Re: why does 'print ("hey)")' give a warning? by John M. Dlugosz (Monsignor) on Jul 09, 2001 at 23:54 UTC
Same idea, but better. You can enable or disable specific warnings, define your own in your modules, and scope the settings. It doesn't set the same variable that -w does, BTW, if you code is looking at that.	[reply]