| 33 |
|
|
| 34 |
|
static S_HEAD *stab[NHASH]; |
| 35 |
|
|
| 36 |
< |
static int shash(); |
| 36 |
> |
#define hash(s) (shash(s)%NHASH) |
| 37 |
|
|
| 38 |
|
extern char *savestr(), *strcpy(), *malloc(); |
| 39 |
|
|
| 55 |
|
|
| 56 |
|
if (str == NULL) |
| 57 |
|
return(NULL); |
| 58 |
< |
hval = shash(str); |
| 58 |
> |
hval = hash(str); |
| 59 |
|
for (sp = stab[hval]; sp != NULL; sp = sp->next) |
| 60 |
|
if (!strcmp(str, string(sp))) { |
| 61 |
|
sp->nl++; |
| 81 |
|
|
| 82 |
|
if (s == NULL) |
| 83 |
|
return; |
| 84 |
< |
hval = shash(s); |
| 84 |
> |
hval = hash(s); |
| 85 |
|
for (spl = NULL, sp = stab[hval]; sp != NULL; spl = sp, sp = sp->next) |
| 86 |
|
if (s == string(sp)) { |
| 87 |
|
if (--sp->nl > 0) |
| 97 |
|
|
| 98 |
|
|
| 99 |
|
int |
| 100 |
< |
strcmp(s1, s2) /* check for s1==s2 */ |
| 101 |
< |
register char *s1, *s2; |
| 102 |
< |
{ |
| 103 |
< |
if (s1 == s2) |
| 104 |
< |
return(0); |
| 105 |
< |
|
| 106 |
< |
while (*s1 == *s2++) |
| 107 |
< |
if (!*s1++) |
| 108 |
< |
return(0); |
| 109 |
< |
|
| 110 |
< |
return(*s1 - *--s2); |
| 111 |
< |
} |
| 112 |
< |
|
| 113 |
< |
|
| 114 |
< |
static int |
| 115 |
< |
shash(s) /* hash a string */ |
| 100 |
> |
shash(s) |
| 101 |
|
register char *s; |
| 102 |
|
{ |
| 103 |
|
register int h = 0; |
| 104 |
|
|
| 105 |
|
while (*s) |
| 106 |
< |
h += *s++; |
| 107 |
< |
|
| 123 |
< |
return(h % NHASH); |
| 106 |
> |
h = (h<<1 & 0x7fff) ^ (*s++ & 0xff); |
| 107 |
> |
return(h); |
| 108 |
|
} |
