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Re^2: How to kill perl?by robin (Chaplain) |
on Nov 04, 2005 at 18:35 UTC ( [id://505833]=note: print w/replies, xml ) | Need Help?? |
Why doesn't unpack "P", 0 dump? I expected it to and this confused me. The reason (on some level) is that pp_unpack() calls newSVpvn(), which calls sv_setpvn(), which has this code: In other words, unpack("P", 0) just returns an undefined SV. Since C code often uses null pointers in the same way that Perl code uses undef, I think this is more useful than crashing. :-)
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