--- ali murtaza <[EMAIL PROTECTED]> wrote:
> Dear
>
> The perpose of Include is mean to Include the
> differents files of pre define functions......e.g.
> stdio.h , conio.h ,string.h etc..
> and main is a function whose return type is a
> integer ...so yopu return 0 at the end of main....
>
>
>
> gIe - papilon <[EMAIL PROTECTED]> wrote:
> i started to learn C programming..
>
> i had some question
>
> example :
>
> #include<stdio.h> /* what the function of
> #include?*/
>
> int main() /* what's int main() purpose? */
> {
> printf('gf');
> return 0; /* why must be return 0 ? not return 1 or
> x */
> }
>
> thanks for your answer..
>
>
> Ali Murtaza
>
The return 0; returns the 0 to the operating system or
if the program was called from another the value is
returned to the calling program. The 0 says that the
program ran successfully. Any non-zero value implies
that there was an error. The calling program or
operating system can use this value. In the days of
DOS batch files, we checked to make sure a program ran
successfully, before executing another program in a
series. Similar for *NIX script files.
Ray
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