Hi,
the warning which is mentioned in the ticket still occurs also with newer
gcc versions. The ticket was closed after a gcc bug report was opened. The
gcc bug was closed due to a missing testcase.
I had a quick look at the problem and it seems that the warning is right
since in certain context and with optimizations enabled gcc can prove
that EXPR_FULLSIZE
- nSize == 0 and thus the triggered warning for this is correct.
Replacing
memset(&zAlloc[nSize], 0, EXPR_FULLSIZE-nSize);
By
if(EXPR_FULLSIZE-nSize > 0)
memset(&zAlloc[nSize], 0, EXPR_FULLSIZE-nSize);
would remove the warning,
Cheers,
-Bernhard
