Predict the output or error(s) for the following:

 main()

            {

            static int var = 5;

            printf("%d ",var--);

            if(var)

              main();

            }

Answer:

5 4 3 2 1

Explanation:

When static storage class is given, it is initialized once. The change in the value of a static variable is retained even between the function calls. Main is also treated like any other ordinary function, which can be called recursively.