* Segher Boessenkool: > -fwrapv is a great way to get slower code, too. Is there something in > your code that does not work without this reality-distorting flag? It really depends on the code. In many cases, -fwrapv enables additional optimizations. For example, it's much easier to use (in C code) the implicit sign bit many CPUs compute for free. Thanks, Florian
