Hi, On Sat, 6 Jan 2018, Ryan Joseph wrote:
> Also why does @(PMyStruct(nil)^.next not crash? Dereferencing and taking > the addressing of a nil pointer sounds like a bad idea. Because it doesn't do the actual dereferencing, because next's *VALUE* is never used, only it's address (due to the @ operator). Which is basically a fixed address of zero (nil) + a constant added together. So it doesn't crash, because it never loads from this "invalid" address it calculates. Charlie _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal