On 6/16/05, Steve Peters <[EMAIL PROTECTED]> wrote:
> --- op.c.old Mon Jun 13 11:52:00 2005
> +++ op.c Thu Jun 16 13:53:26 2005
> @@ -3901,6 +3901,10 @@
> I32 iterflags = 0;
> I32 iterpflags = 0;
>
> + if (!expr) {
> + DIE(aTHX_ "\"for\" missing a conditional expression");
Surely you jest. for is used quite often to alias a variable to $_,
i.e. without a conditional expression.
However you correctly found the cause of the problem. $[ is a
pragmatic variable and assignment to it happens at compile time and is
optimized away. So expr becomes NULL.
Note that other kinds of similar code segfaults too :
$ perl -e 'if($[=0){print}'
Segmentation fault
I'd rather solve all those cases once and for all.
