Bug#636124: Use of [which] uninitialized value?

[Dominic Hargreaves]

Control: found -1 5.22.1-9
Control: retitle -1 perl: loops prevent variables being mentioned in uninitizliaed value warnings
Control: tags -1 + confirmed upstream

On Sun, Jul 31, 2011 at 07:39:33PM +0800, jidanni at jidanni.org wrote:
> Package: perl
> Version: 5.12.4-2
> Severity: wishlist
> Tags: upstream
> 
> There is no denying that perl could mention that it was $_ that was bothering it in
> $ perl -we 'print $_ for undef'
> Use of uninitialized value in print at -e line 1.
> And here too!:
> $ perl -we 'print for undef'
> Use of uninitialized value in print at -e line 1.
> https://groups.google.com/d/topic/comp.lang.perl.misc/JTpsJI6-glE/discussion

In particular

https://groups.google.com/d/msg/comp.lang.perl.misc/JTpsJI6-glE/ypEjIXie2AAJ

which notes the difference between

$ perl -we 'print $_' 
Use of uninitialized value $_ in print at -e line 1.

and

$ perl -we 'print $_ for undef' 
Use of uninitialized value in print at -e line 1.