Sunday November 20 1994 21:47, Rafael Solomon wrote to Grant Beattie:

 ac>> int main(void)

(You wrote to Grant but quoted my text.)


 > I have only started programming in C so I haven't used that can you
 > tell me the advantages of that compared to "void main()"

If you specify a return type of "void" (return void [nothing]
when your program exits), there is no guarantee your program will return an
error code of 0.

If you specify a return type of "int" (return an integer when
your program exits) you may return an errorcode (or errorlevel) back to the
calling program, eg.

  /* Target: MS-DOS, OS/2, others */
  #include 

  int main(void)
  {
    puts("Returning to calling program, returning with error code of
5...");
    return(5);
  }



By placing "void" in the argument list for the main() function
you're telling the compiler that main() takes no arguments.


  int main()
  ...

and

  int main(void)
  ...

may be interpreted differently by some compilers, apparently.


ZeeYa...
Andrew.

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