Re: Do not misuse Coverity please

From: Shankar Unni
Date: Wed Mar 30 2005 - 13:31:57 EST


Jean Delvare wrote:

v = p->field;
if (!p) return;

can be seen as equivalent to

if (!p) return;
v = p->field;

Heck, no.

You're missing the side-effect of a null pointer dereference crash (for p->field) (even though v is unused before the return). The optimizer is not allowed to make exceptions go away as a result of the hoisting.

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