/* -*-c-*-
*
- * $Id: mp-sqrt.c,v 1.5 2004/04/08 01:36:15 mdw Exp $
+ * $Id$
*
* Compute integer square roots
*
/* --- Sanity preservation --- */
- assert(((void)"imaginary root in mp_sqrt", !(a->f & MP_NEG)));
+ assert(!MP_NEGP(a));
/* --- Deal with trivial cases --- */
MP_SHRINK(a);
- if (a->v == a->vl) {
+ if (MP_ZEROP(a)) {
mp_drop(d);
return (MP_ZERO);
}
for (;;) {
q = mp_sqr(q, d);
q = mp_sub(q, q, a);
- if (q->v == q->vl)
+ if (MP_ZEROP(q))
break;
- if (q->f & MP_NEG) {
+ if (MP_NEGP(q)) {
r = mp_lsl(r, d, 1);
r->f |= MP_NEG;
- if (MP_CMP(q, <=, r))
+ if (MP_CMP(q, >=, r))
break;
}
mp_div(&r, &q, q, d);