99 Bottles of Beer

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/* The 99 Bottles of Beer Program
 *
 * Sept. 1st 2005
 * by Matteo Casati <devaraja87^gmail^com>
 *
 * This is the poor-style C version of
 * the program. It uses only gotos.
 */

int main()
{
    int n_beers=99;
    char pl='s';
    goto a;
  z:
    return 0;
  b:
    n_beers--;
    if(n_beers){
	pl=(n_beers==1?31:'s');
	printf("%d bottle%c of beer on the wall!\n",n_beers,pl);
	goto a;
    }else{
	printf("no more bottles of beer on the wall!\n");
	printf("No more bottles of beer on the wall,"
	       " no more bottles of beer.\nGo to the store"
	       " and buy some more, 99 bottles of beer on the wall!\n");
	goto z;
    }
  a:
    printf("%d bottle%c of beer on the wall, "
	   "%d bottle%c of beer\n",n_beers,pl,n_beers,pl);
    printf("Take one down and pass it around, ");
    goto b;
}

Alternative Versions

Version	Author	Date	Comments	Rate
Linux kernel module	Stefan Scheler	08/02/05	15
Correct ANSI C containing no semicolons	Steve Checkoway	01/15/09	0
multithreaded version	Stefan Scheler	05/11/05	6
actually produces correct lyrics :P	Dustshine	08/20/05	0
standard version	Bill Wein	04/20/05	4

Comments

 Skylark said on 09/05/05 14:01:58

You have to #include <stdio.h> for that to work, ie printf lolz.

Also:

#include <stdio.h>

int main()
{

 Richard Selby said on 08/25/06 17:01:29

Ah lovely! It's so nice to see someone break the rules

 Kiyoshi Akima said on 08/28/06 20:04:23

In the olde days you didn't need to #include a header unless you needed something from it. Since the program doesn't use the return value from printf(), it doesn't need <stdio.h>.

However, the program does use string concatenation. Perhaps poorer style might be something like
<pre>
printf("No more bottles of beer on the wall,\
no more bottles of beer.\nGo to the store\
and buy some more, 99 bottles of beer on the wall!\n";
</pre>

 Kiyoshi Akima said on 08/28/06 20:06:28

Not sure where that smiley came from. It was just a close parenthesis.

And I guess I now know not to put in formatting tags...

 G. De Rosa said on 09/10/06 19:26:56

void main() would be even poorer than int main()

 Anonymous said on 09/03/07 15:57:59

"void main() would be even poorer than int main() "

Ahh, but int main(), and not returning anything tops both

 aName said on 11/29/08 03:28:22

"Ahh, but int main(), and not returning anything tops both "

No. If control "falls off" the end of main() without an explicit return statement, the return value is zero.

 Anonymous said on 06/11/09 22:13:30

your code is far too verbose to really be called poor style, "int main()" really? I like your label names, but your vars are way way too readable. Poorly styled code should be concise, reliant on support for old language features, nearly indecipherable and above all else formatted to fit 80 columns.
how about...
//this WILL compile with gcc
#define P printf
main(){
char i='c',*s="s",*z="",*c=" of beer",*w=" on the wall, ",*b=" bottle",
*n="no more",*t="take one down and pass it around, ";
a:P("%d%s%s%s%s%d%s%s%s\n%s",i,b,i>1?s:z,c,w,i,b,i>1?s:z,c,t);
i<2?P(n):P("%d",i-1);P("%s%s%s%s\n\n",b,i-2?s:z,c,w);
if(--i)goto a;goto b;
b:P("%s%ss%s%s%s%ss%s\ngo to the store and buy some more, 99%ss%s%s\n",
n,b,c,w,n,b,c,b,c,w);
}

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