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How main function is different then other functions in C?

+1 vote

This was asked today in my interview and I was not having any clue. Any pointer would be helpful.

posted Aug 24, 2015 by anonymous

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1 Answer

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main() is the entry point as far as C is concerned. The loader sets the main()'s address as the contents of the program counter once the loading is complete and the state of the program changes from "loading" to "running"

  • You cannot have 2 or more main()s in an application. Only main() is permitted in the application
  • main() should be in the global namespace
    -main() cannot be a member function
  • main() has a few predefined prototypes

You may want to check

answer Aug 24, 2015 by Sudeep Gopal
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