basic on stack wherever possible in ext/*.c

Author: abinashmeher999

ext/symengine/ruby_rational.c

@@ -1,9 +1,11 @@
 #include "ruby_rational.h"
 
 VALUE crational_init(VALUE self, VALUE rat_value) {
-    basic_struct *this, *num_basic, *den_basic;
-    num_basic = basic_new_heap();
-    den_basic = basic_new_heap();
+    basic_struct *this;
+    basic num_basic, den_basic;
+
+    basic_new_stack(num_basic);
+    basic_new_stack(den_basic);
 
     Data_Get_Struct(self, basic_struct, this);
 
@@ -15,7 +17,7 @@ VALUE crational_init(VALUE self, VALUE rat_value) {
     GET_SYMINTFROMVAL(den, den_basic);
 
     rational_set(this, num_basic, den_basic);
-    basic_free_heap(num_basic);
-    basic_free_heap(den_basic);
+    basic_free_stack(num_basic);
+    basic_free_stack(den_basic);
     return self;
 }

ext/symengine/symengine_macros.c

@@ -2,7 +2,7 @@
 #include "symengine.h"
 
 void sympify(VALUE operand2, basic_struct *cbasic_operand2) {
-    basic_struct *num_basic, *den_basic, *temp;
+    basic_struct *temp;
     VALUE new_operand2, num, den;
 
     switch(TYPE(operand2)) {
@@ -15,16 +15,17 @@ void sympify(VALUE operand2, basic_struct *cbasic_operand2) {
             num = rb_funcall(operand2, rb_intern("numerator"), 0, NULL);
             den = rb_funcall(operand2, rb_intern("denominator"), 0, NULL);
 
-            num_basic = basic_new_heap();
-            den_basic = basic_new_heap();
+            basic num_basic, den_basic;
+            basic_new_stack(num_basic);
+            basic_new_stack(den_basic);
 
             GET_SYMINTFROMVAL(num, num_basic);
             GET_SYMINTFROMVAL(den, den_basic);
 
             rational_set(cbasic_operand2, num_basic, den_basic);
 
-            basic_free_heap(num_basic);
-            basic_free_heap(den_basic);
+            basic_free_stack(num_basic);
+            basic_free_stack(den_basic);
             break;
 
         case T_DATA: