static char *sccsid
= "@(#)lookup.c 4.5 (Berkeley) 84/02/16";
struct namelist
*s_value
;
static struct syment
*hashtab
[HASHSIZE
];
* Define a variable from a command line argument.
register struct namelist
*nl
;
printf("define(%s)\n", name
);
else if (cp
[1] == '\0') {
} else if (cp
[1] != '(') {
while (*cp
== ' ' || *cp
== '\t');
while (*s
== ' ' || *s
== '\t')
(void) lookup(name
, REPLACE
, value
);
* Lookup name in the table and return a pointer to it.
* LOOKUP - just do lookup, return NULL if not found.
* INSERT - insert name with value, error if already defined.
* REPLACE - insert or replace name with value.
lookup(name
, action
, value
)
register struct syment
*s
;
printf("lookup(%s, %d, %x)\n", name
, action
, value
);
for (s
= hashtab
[n
]; s
!= NULL
; s
= s
->s_next
) {
if (strcmp(name
, s
->s_name
))
if (action
!= INSERT
|| s
->s_type
!= CONST
)
fatal("%s redefined\n", name
);
fatal("%s not defined", name
);
fatal("ran out of memory\n");
s
->s_type
= action
== INSERT
? VAR
: CONST
;