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Postings from September 2000
Peter Scott writes:
> Hey, waitaminute. That isn't a list in sub fn in the first place; it's
> three expressions separated by scalar commas. Why is there no complaint
> about useless use of a constant in void context?
>
> $ perl -Mstrict -wle 'sub f{return(3,5,7)} my $x = f()'
> $ perl -Mstrict -wle 'my $x = (3,5,7)'
> Useless use of a constant in void context at -e line 1.
> Useless use of a constant in void context at -e line 1.
> $
>
> If context propagates through subroutine calls why no warning?
Context of subroutine calls isn't known until runtime:
$x = f(); # scalar
@x = f(); # list
The warning you're talking about is a compiletime warning.
Nat