diff --git a/test.cpp b/test.cpp
index f1266f1..b8ae38a 100644
--- a/test.cpp
+++ b/test.cpp
@@ -2,6 +2,21 @@
 #include <string>
 #include "big_data_int.h"
 
+typedef unsigned long long size_t;
+extern void *malloc(size_t);
+int *alloc(unsigned count);
+
+void test44_1() { int *p = alloc(10); }  // #nodefect#RESOURCE_LEAK
+
+int *alloc2(unsigned count) {
+  if (count >= 0) {
+    return (int *)malloc(count);
+  }
+  return 0;
+}
+
+void MyFunc() { int *p = alloc2(10); }
+
 int main() 
 {
     cout<<"please input two numbers:"<<endl;
@@ -25,11 +40,11 @@ int main()
         case '*':
             c = a * b;
             break;
-        case '/':
-            c = a / b;
-            break;
-        case '%':
-            c = a % b;
+        // case '/':
+        //     c = a / b;
+        //     break;
+        // case '%':
+        //     c = a % b;
             break;
         default:
             cout<<"Wrong operator input"<<endl;  
@@ -38,5 +53,7 @@ int main()
 
     cout <<"Result is:"<<endl<<c.data()<<endl;
 
+    MyFunc();
+
     return 0;
 }