update

basic_content/assert/assert.c

@@ -0,0 +1,18 @@
+#include <stdio.h> 
+#include <assert.h> 
+
+int main() 
+{ 
+    int x = 7; 
+
+    /*  Some big code in between and let's say x  
+     *         is accidentally changed to 9  */
+    x = 9; 
+
+    // Programmer assumes x to be 7 in rest of the code 
+    assert(x==7); 
+
+    /* Rest of the code */
+
+    return 0; 
+}