Difference between revisions of "XMMS"

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(→‎mm.c: source code highlighting)
Line 13: Line 13:
 
Perhaps someone should port this to work with the [[XINU]] code base.
 
Perhaps someone should port this to work with the [[XINU]] code base.
  
#include <stdio.h>
+
<source lang="c">
#include <stdlib.h>
+
#include <stdio.h>
+
#include <stdlib.h>
void usage(char *prog);
+
 
+
void usage(char *prog);
int main(int argc, char **argv)
+
 
{
+
int main(int argc, char **argv)
        int oz, mm;
+
{
+
        int oz, mm;
        if (argc != 2)
+
 
        { usage(argv[0]); }
+
        if (argc != 2)
+
        { usage(argv[0]); }
        oz = atoi(argv[1]);
+
 
+
        oz = atoi(argv[1]);
        /* empirical evidence shows 500 M&Ms per pound */
+
 
        mm = 500 * (oz / 16);
+
        /* empirical evidence shows 500 M&Ms per pound */
+
        mm = 500 * (oz / 16);
        /* catch the remaining oz */
+
 
        mm += (31 * (oz % 16));
+
        /* catch the remaining oz */
+
        mm += (31 * (oz % 16));
        /* technically it is 31.25 M&Ms per ounce */
+
 
        /* so add 1 M&M for every 4 ounces */
+
        /* technically it is 31.25 M&Ms per ounce */
        mm += ((oz % 16) / 4);
+
        /* so add 1 M&M for every 4 ounces */
+
        mm += ((oz % 16) / 4);
        printf("There are approximately %d M&Ms in %d ounces.\n", mm, oz);
+
 
+
        printf("There are approximately %d M&Ms in %d ounces.\n", mm, oz);
        return 0;
+
 
}
+
        return 0;
+
}
void usage(char *prog)
+
 
{
+
void usage(char *prog)
        fprintf(stderr, "Usage: %s oz\n", prog);
+
{
        fprintf(stderr, "  Calculate the number of M&Ms in oz ounces.\n");
+
        fprintf(stderr, "Usage: %s oz\n", prog);
        exit(1);
+
        fprintf(stderr, "  Calculate the number of M&Ms in oz ounces.\n");
}
+
        exit(1);
 +
}
 +
</source>

Revision as of 18:57, 11 July 2008

A full M&M jug.
The M&M jug from a more dramatic angle.

M&M's are small candy coated milk chocolate delights that come in a rainbow of colors and several variations. The XINU Lab maintains a supply of these colorful treats so that members of the lab can make it through the hard days and long nights of XINU development.

Reference shot for 3-45 oz bags of M&Ms in the jug.
Reference shot for 4.5-56 oz bags of M&Ms in the jug.

Number of M&Ms in the jug

After filling the M&M jug about halfway full, I wondered about how many M&Ms it held. A little investigation and I developed this program to provide the number of M&Ms given <math>n</math> ounces.

mm.c

Perhaps someone should port this to work with the XINU code base.

#include <stdio.h>
#include <stdlib.h>

void usage(char *prog);

int main(int argc, char **argv)
{
        int oz, mm;

        if (argc != 2)
        { usage(argv[0]); }

        oz = atoi(argv[1]);

        /* empirical evidence shows 500 M&Ms per pound */
        mm = 500 * (oz / 16);

        /* catch the remaining oz */
        mm += (31 * (oz % 16));

        /* technically it is 31.25 M&Ms per ounce */
        /* so add 1 M&M for every 4 ounces */
        mm += ((oz % 16) / 4);

        printf("There are approximately %d M&Ms in %d ounces.\n", mm, oz);

        return 0;
}

void usage(char *prog)
{
        fprintf(stderr, "Usage: %s oz\n", prog);
        fprintf(stderr, "  Calculate the number of M&Ms in oz ounces.\n");
        exit(1);
}