wip

Author: SakiTakamachi

ext/bcmath/libbcmath/src/sqrt.c

@@ -115,15 +115,12 @@ bool bc_sqrt(bc_num *num, size_t scale)
 			full_len++;
 		} while (tmp_guess_vector > 0);
 
-		size_t ret_ren = full_len - cscale;
-		if (ret_ren == 0) {
-			ret_ren = 1; // for int zero
-		}
+		size_t ret_ren = full_len > cscale ? full_len - cscale : 1; /* for int zero */
 		bc_num ret = bc_new_num_nonzeroed(ret_ren, rscale);
 		char *rptr = ret->n_value;
 		char *rend = rptr + ret_ren + rscale - 1;
 
-		for (i = 0; i < cscale - cscale - rscale; i++) {
+		for (i = 0; i < cscale - rscale; i++) {
 			guess_vector /= BASE;
 		}
 		while (rend >= rptr) {