Now even if I change the ordering of the enumeration, the jumptable logic doesn’t break. Much better. My only problem was that the C compiler I was working with was not compliant with the C99 standard ...

Prototypes can be a lot more complicated as in this C example where five parameters are passed to a graphics function. void DrawTransparentBitmap(HDC hdc, HBITMAP hBitmap, int xStart, int yStart ...