{ const char *name; const char *species; };

struct critter muppets[] = { {"Kermit", "frog"}, {"Piggy", "pig"}, {"Gonzo", "whatever"}, {"Fozzie", "bear"}, {"Sam", "eagle"}, {"Robin", "frog"}, {"Animal", "animal"}, {"Camilla", "chicken"}, {"Sweetums", "monster"}, {"Dr. Strangepork", "pig"}, {"Link Hogthrob", "pig"}, {"Zoot", "human"}, {"Dr. Bunsen Honeydew", "human"}, {"Beaker", "human"}, {"Swedish Chef", "human"} };

int count = sizeof (muppets) / sizeof (struct critter);

/* This is the comparison function used for sorting and searching. */

int critter_cmp (const struct critter *c1, const struct critter *c2) { return strcmp (c1->name, c2->name); }

/* Print information about a critter. */

void print_critter (const struct critter *c) { printf ("%s, the %s\n", c->name, c->species); }

/* Do the lookup into the sorted array. */

void find_critter (const char *name) { struct critter target, *result; target.name = name; result = bsearch (&target, muppets, count, sizeof (struct critter), critter_cmp); if (result) print_critter (result); else printf ("Couldn’t find %s.\n", name); }

/* Main program. */

int main (void) { int i;

for (i = 0; i < count; i++) print_critter (&muppets[i]); printf ("\n");

qsort (muppets, count, sizeof (struct critter), critter_cmp);

for (i = 0; i < count; i++) print_critter (&muppets[i]); printf ("\n");

find_critter ("Kermit"); find_critter ("Gonzo"); find_critter ("Janice");

return 0; }

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