Difference between main(void) and main() in C [duplicate]

Answer 1

main() allows you to call main with any number of parameters. main(void) forces you to call main with no parameters. So:

main(foo, bar);

Is fine with main() but not with main(void) - the compiler generates an error.

Now if you're specifically asking about the program's entry point, it doesn't really make a difference; in either case, you won't have the arguments to the program (argc, argv, envp) available.