Optimized and changed the initialization process to run a little later.

Author: SakiTakamachi

ext/bcmath/libbcmath/src/sqrt.c

@@ -60,15 +60,9 @@ bool bc_sqrt(bc_num *num, size_t scale)
 
 	/* Initialize the variables. */
 	size_t cscale;
-	bc_num guess, guess1, point5, diff;
+	bc_num guess;
 	size_t rscale = MAX(scale, (*num)->n_scale);
 
-	bc_init_num(&guess1);
-	bc_init_num(&diff);
-	point5 = bc_new_num (1, 1);
-	point5->n_value[1] = 5;
-
-
 	/* Calculate the initial guess. */
 	if (num_cmp_one == BCMATH_RIGHT_GREATER) {
 		/* The number is between 0 and 1.  Guess should start at 1. */
@@ -87,6 +81,11 @@ bool bc_sqrt(bc_num *num, size_t scale)
 		cscale = 3;
 	}
 
+	bc_num guess1 = NULL;
+	bc_num point5 = bc_new_num (1, 1);
+	point5->n_value[1] = 5;
+	bc_num diff = NULL;
+
 	/* Find the square root using Newton's algorithm. */
 	bool done = false;
 	while (!done) {