by Dinesh Thakur Category: Type And Variables

when a variable is not initialized in main function it contains garbage value. This can be well seen from the example below


    int x;
   z= sample();
    printf("Testing program");
Output is x=80
Testing program

The above program prints a garbage value and the output testing program .This is because the variable x is not initialized and so the variable x had garbage value which is printed first then the function sample is called which gave output as testing program.  Thus it is essential to initialize variables in main () function.

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Dinesh ThakurDinesh Thakur holds an B.C.A, MCSE, MCDBA, CCNA, CCNP, A+, SCJP certifications. Dinesh authors the hugely popular blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps. For any type of query or something that you think is missing, please feel free to Contact us.