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#define HASHSIZE 11
#include <stdio.h>
static struct nlist *hashtab[HASHSIZE] ; /* pointer table */
unsigned hash (char *s);
int main(void)
{
printf("%u\t= Hello, world\n", hash ("Hello, world"));
printf("%u\t= hello, world\n", hash ("hello, world"));
printf("%u\t= Helo, world\n", hash ("Helo, world"));
printf("%u\t= Hella, world\n", hash ("Hella, world"));
printf("%u\t= Hello, World\n", hash ("Hello, World"));
printf("%u\t= Hello, WOrld\n", hash ("Hello, WOrld"));
printf("%u\t= Hello, worldd\n", hash ("Hello, worldd"));
printf("%u\t= Hello, wfrld\n", hash ("Hello, wfrld"));
printf("%u\t= Hello, worf\n", hash ("Hello, worf"));
printf("%u\t= Hlo, world\n", hash ("Hlo, world"));
return 0;
}
unsigned hash (char *s)
{
unsigned hashval;
for (hashval = 0; *s != '\0' ; s++ )
{
hashval += *s + 5 * hashval;
}
return hashval % HASHSIZE;
}
/*
8 = Hello, world
1 = hello, world
8 = Helo, world
6 = Hella, world
6 = Hello, World
2 = Hello, WOrld
0 = Hello, worldd
0 = Hello, wfrld
5 = Hello, worf
3 = Hlo, world
*/ |
