Nick Sabalausky wrote:
"Compiler now detects some cases of illegal null dereferencing when compiled
with -O"
A bug-detection feature that's turned on with -O? I assume that's just a
temporary situation and is related to either it currently being detected by
the optimizer and the feature maybe being in a "trial" phase? Or maybe just
a typo? ;)
No, it's deliberate. Turns out, in order for it to work reliably and not
give false positives, it needs the full attention of the optimizer.
Otherwise, you get false positives like:
int* p = null;
...
if (p)
*p = 7;
