On: Catch-23: The New C Standard Sets the World on Fir...

[chongli]

Why not just write:

    bool aplusb_sqr(int* c, int a, int b) {
        return c && ckd_add(c, a, b) && ckd_mul(c, *c, *c);
    }

[xigoi → chongli]

Obviously you could do that in this case, I just wanted to come up with a complicated formula.