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Article:
  C is for Cocoa
Subject:   Re: This made me install the dev tools
Date:   2003-07-23 21:04:40
From:   anonymous2
Response to: This made me install the dev tools

If you're anxious to get Mr. Roby's little sample to compile and run, let me give you a little nudge.


Getting a C program to run involves three steps:
1. Create your C source file. If you've never used vi or emacs then I would recommend pico. Save the source file as 'lesson1.c'.
2. Compile it into machine code:
gcc lesson1.c
3. Run your program and see your happy result:
./a.out


I'm not going to go into how or why any of this works; I will let the excellent tutorial run its course. I will, however, say that despite what you've read, the line that begins with '#' (it's not a comment) must remain as an independent line.



Here is the entire program:


#include <stdio.h>
void main()
{
//Computes our favorite number
int favoriteNumber = (3 * 4) / 2; /*is anyone's favorite number not an int? */
favoriteNumber = favoriteNumber + 2;


/* now let's tell the world
what our favorite number is! */
printf("My favorite number is %d!", favoriteNumber);
}

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Showing messages 1 through 4 of 4.

  • Re: This made me install the dev tools
    2003-07-23 21:07:56  anonymous2 [View]

    Whoops! I should have tested the program before I hit 'Submit'. Here is the revised code:

    #include <stdio.h>
    int main()
    {
    //Computes our favorite number
    int favoriteNumber = (3 * 4) / 2; /*is anyone's favorite number not an int? */
    favoriteNumber = favoriteNumber + 2;

    /* now let's tell the world
    what our favorite number is! */
    printf("My favorite number is %d!\n", favoriteNumber);
    }
    • Re: This made me install the dev tools
      2003-07-26 02:00:07  anonymous2 [View]

      misssing

      return (0);

      are we? :)
      • Re: This made me install the dev tools
        2003-09-03 19:48:45  anonymous2 [View]

        Not really. return 0; is optional in standard, modern C++ - and by extension, I'd assume the most recent C spec.

        Though gcc accepts some C++ syntaxes in C-compiling mode.
  • Re: This made me install the dev tools
    2003-07-23 22:17:35  anonymous2 [View]

    Presuming somebody interested in this tutorial is going to be working on a Mac, why would they bust out vi or emacs or pico?

    You can do all your typing in Project Builder. It's a perfectly servicable text editor. Or use BBEdit / BBEdit Lite. Much friendlier.