Function rn2

src/rnd.c:94–107

0 <= rn2(x) < x */

/* 0 <= rn2(x) < x */
int
rn2(int x)
{
#if (NH_DEVEL_STATUS != NH_STATUS_RELEASED)
    if (x <= 0) {
        impossible("rn2(%d) attempted", x);
        return 0;
    }
    x = RND(x);
    return x;
#else
    return RND(x);
#endif
}

/* 0 <= rnl(x) < x; sometimes subtracting Luck;
   good luck approaches 0, bad luck approaches (x-1) */