Function swapbits

src/hacklib.c:831–837

swapbits(val, bita, bitb) swaps bit a with bit b in val */

/* swapbits(val, bita, bitb) swaps bit a with bit b in val */
int
swapbits(int val, int bita, int bitb)
{
    int tmp = ((val >> bita) & 1) ^ ((val >> bitb) & 1);

    return (val ^ ((tmp << bita) | (tmp << bitb)));
}

DISABLE_WARNING_FORMAT_NONLITERAL