Question on strict aliasing in C.

[Georg-Johann Lay]

Paul Smith wrote:
> On Mon, 2011-07-04 at 19:17 +0200, Georg-Johann Lay wrote:
>>>> double copysign (double x, double y)
>>>> {
>>>>     unsigned short * const px = (unsigned short*)(char*)&x + 3;
>>>>     unsigned short * const py = (unsigned short*)(char*)&y + 3;
> 
> I don't get why you have the (char*) cast here?

It's not a source of mine.  I don't know the reason why it's there.