Re: newbie C programming question

[Willem Brown <willemb iserve co za>]

Christopher Henderson wrote:
> I'm trying to teach myself C and I'm having trouble compiling my first
> program.  This is following the C Tutorial at
> <http://www.physics.drexel.edu/courses/Comp_Phys/General/C_basics/c_tutorial.html>.
>
> My first program, a simple "Hello World", is as follows
>
> #include < stdio.h>

Remove the space character between the "<" and stdio and try again.

> void main()
> {
>     printf("\nHello World\n");
> }
>
> I go to a console and type gcc hello.c as stated in the tutorial and get 
> the following error spit out at me -
>
> hello.c:1:20:  stdio.h: No such file or directory
> hello.c: In function `main':
> hello.c:4: warning: return type of `main' is not `int'
>
> well, I did a whereis on stdio.h and its in /usr/include - any ideas on the 
> problem?  I know this might be a bit off-topic, and btw I'm running RH 8.
>
> Thnx folks,
> ~Christopher

Also, gcc hello.c will generate an executable called a.out. If you want
the executable to be called "hello" you should use gcc -o hello hello.c
instead.

To execute you would type ./hello and press the enter key.

Best Regards
Willem Brown

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