On Mon, Nov 09, 2015 at 01:27:34AM +0100, Vincent Lefevre wrote:
> > Why not simply:
> > unsigned y = x;
> > return y*y*y;
> > ? This is an example where defined behavior is so easy to get...
>
> But what if the result of y*y*y (an unsigned int) does not fit in
> an int?
That is implementation-defined. not undefined (6.3.1.3); GCC documents
it like this:
For conversion to a type of width N, the value is reduced modulo
2^N to be within range of the type; no signal is raised.
Segher
