(jeffa) Re: scalar ref help?

Use ~~package~~ global variables instead of lexical ones:

perl -Mstrict -le 'no strict "refs";use vars qw($x $xr $y);
    $x = 8;$xr = "x"; $y = $$xr; print $y;'
[download]

Heh heh ... but why?

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)

Comment on (jeffa) Re: scalar ref help? Download Code

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Re: (jeffa) Re: scalar ref help? by slife (Scribe) on Dec 16, 2002 at 16:04 UTC
`perl -Mstrict -le 'no strict "refs";use vars qw($x $xr $y); $x = 8;$xr = "x"; $y = $$xr; print $y;'` [download] This works because you can only use symbolic references where the variables are visible in the package symbol table; lexical ( i.e. my() ) variables are not (as you can confirm with the Perl debugger). Camel 3rd Ed. Ch. 8 refers* *Sorry	[reply] [d/l]