Ian Lance Taylor wrote: > Andrew's point was not that the program was non-conforming. His point > was that a conforming program could not detect this optimization. And, > indeed, it couldn't. The issue was reported by valgrind, not by the > program itself. OK, I get it now. This is the same sort of thing we see when strlen() reads past the end of the string, but doesn't actually use the extra bytes it read as part of its operation... valgrind complains, but the program works as expected. However, in this case, valgrind didn't say it was a read of an uninitialized variable, it said the conditional jump depended on the value of an uninitialized variable; either that's a valgrind bug, or the jump may take different paths based on that content, or I'm not really awake enough this morning yet :-) -- Kevin P. Fleming Digium, Inc. | Director of Software Technologies 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA skype: kpfleming | jabber: kpfleming@xxxxxxxxxx Check us out at www.digium.com & www.asterisk.org