aboutsummaryrefslogtreecommitdiffstats
path: root/int_array.c
diff options
context:
space:
mode:
Diffstat (limited to 'int_array.c')
-rw-r--r--int_array.c65
1 files changed, 35 insertions, 30 deletions
diff --git a/int_array.c b/int_array.c
index 2909f6f9..769ac9bb 100644
--- a/int_array.c
+++ b/int_array.c
@@ -45,9 +45,10 @@ static inline NODE **int_find(NODE *symbol, long k, uint32_t hash1);
static NODE **int_insert(NODE *symbol, long k, uint32_t hash1);
static void grow_int_table(NODE *symbol);
-array_ptr int_array_func[] = {
+afunc_t int_array_func[] = {
int_array_init,
is_integer,
+ null_length,
int_lookup,
int_exists,
int_clear,
@@ -55,22 +56,27 @@ array_ptr int_array_func[] = {
int_list,
int_copy,
int_dump,
+ (afunc_t) 0,
};
-/* int_array_init --- check relevant environment variables */
+/* int_array_init --- array initialization routine */
static NODE **
-int_array_init(NODE *symbol ATTRIBUTE_UNUSED, NODE *subs ATTRIBUTE_UNUSED)
+int_array_init(NODE *symbol, NODE *subs ATTRIBUTE_UNUSED)
{
- long newval;
+ if (symbol == NULL) { /* first time */
+ long newval;
+
+ /* check relevant environment variables */
+ if ((newval = getenv_long("INT_CHAIN_MAX")) > 0)
+ INT_CHAIN_MAX = newval;
+ } else
+ null_array(symbol);
- if ((newval = getenv_long("INT_CHAIN_MAX")) > 0)
- INT_CHAIN_MAX = newval;
return (NODE **) ! NULL;
}
-
/* is_integer --- check if subscript is an integer */
NODE **
@@ -147,7 +153,8 @@ is_integer(NODE *symbol, NODE *subs)
}
-/* int_lookup --- Find SYMBOL[SUBS] in the assoc array. Install it with value ""
+/*
+ * int_lookup --- Find SYMBOL[SUBS] in the assoc array. Install it with value ""
* if it isn't there. Returns a pointer ala get_lhs to where its value is stored.
*/
@@ -160,7 +167,8 @@ int_lookup(NODE *symbol, NODE *subs)
NODE **lhs;
NODE *xn;
- /* N.B: symbol->table_size is the total # of non-integers (symbol->xarray)
+ /*
+ * N.B: symbol->table_size is the total # of non-integers (symbol->xarray)
* and integer elements. Also, symbol->xarray must have at least one
* item in it, and can not exist if there are no integer elements.
* In that case, symbol->xarray is promoted to 'symbol' (See int_remove).
@@ -207,7 +215,8 @@ int_lookup(NODE *symbol, NODE *subs)
}
-/* int_exists --- test whether the array element symbol[subs] exists or not,
+/*
+ * int_exists --- test whether the array element symbol[subs] exists or not,
* return pointer to value if it does.
*/
@@ -266,8 +275,7 @@ int_clear(NODE *symbol, NODE *subs ATTRIBUTE_UNUSED)
}
if (symbol->buckets != NULL)
efree(symbol->buckets);
- init_array(symbol); /* re-initialize symbol */
- symbol->flags &= ~ARRAYMAXED;
+ symbol->ainit(symbol, NULL); /* re-initialize symbol */
return NULL;
}
@@ -338,9 +346,7 @@ removed:
BUCKET *head = symbol->buckets[hash1];
assert(b->aicount == 1);
- /* move the last element from head
- * to bucket to make it full.
- */
+ /* move the last element from head to bucket to make it full. */
i = --head->aicount; /* head has one less element */
b->ainum[1] = head->ainum[i];
b->aivalue[1] = head->aivalue[i];
@@ -356,8 +362,7 @@ removed:
symbol->table_size--;
if (xn == NULL && symbol->table_size == 0) {
efree(symbol->buckets);
- init_array(symbol); /* re-initialize array 'symbol' */
- symbol->flags &= ~ARRAYMAXED;
+ symbol->ainit(symbol, NULL); /* re-initialize array 'symbol' */
} else if (xn != NULL && symbol->table_size == xn->table_size) {
/* promote xn (str_array) to symbol */
xn->flags &= ~XARRAY;
@@ -421,6 +426,7 @@ int_copy(NODE *symbol, NODE *newsymb)
}
*pnew = newchain;
+ newchain->ainext = NULL;
pnew = & newchain->ainext;
}
}
@@ -456,15 +462,17 @@ int_list(NODE *symbol, NODE *t)
int j, elem_size = 1;
long num;
static char buf[100];
+ assoc_kind_t assoc_kind;
if (symbol->table_size == 0)
return NULL;
+ assoc_kind = (assoc_kind_t) t->flags;
num_elems = symbol->table_size;
- if ((t->flags & (AINDEX|AVALUE|ADELETE)) == (AINDEX|ADELETE))
+ if ((assoc_kind & (AINDEX|AVALUE|ADELETE)) == (AINDEX|ADELETE))
num_elems = 1;
- if ((t->flags & (AINDEX|AVALUE)) == (AINDEX|AVALUE))
+ if ((assoc_kind & (AINDEX|AVALUE)) == (AINDEX|AVALUE))
elem_size = 2;
list_size = elem_size * num_elems;
@@ -486,7 +494,7 @@ int_list(NODE *symbol, NODE *t)
for (j = 0; j < b->aicount; j++) {
/* index */
num = b->ainum[j];
- if ((t->flags & AISTR) != 0) {
+ if ((assoc_kind & AISTR) != 0) {
sprintf(buf, "%ld", num);
subs = make_string(buf, strlen(buf));
subs->numbr = num;
@@ -498,12 +506,12 @@ int_list(NODE *symbol, NODE *t)
list[k++] = subs;
/* value */
- if ((t->flags & AVALUE) != 0) {
+ if ((assoc_kind & AVALUE) != 0) {
r = b->aivalue[j];
if (r->type == Node_val) {
- if ((t->flags & AVNUM) != 0)
+ if ((assoc_kind & AVNUM) != 0)
(void) force_number(r);
- else if ((t->flags & AVSTR) != 0)
+ else if ((assoc_kind & AVSTR) != 0)
r = force_string(r);
}
list[k++] = r;
@@ -659,14 +667,13 @@ static uint32_t
int_hash(uint32_t k, uint32_t hsize)
{
-/* Code snippet copied from:
+/*
+ * Code snippet copied from:
* Hash functions (http://www.azillionmonkeys.com/qed/hash.html).
* Copyright 2004-2008 by Paul Hsieh. Licenced under LGPL 2.1.
*/
- /* This is the final mixing function used by Paul Hsieh
- * in SuperFastHash.
- */
+ /* This is the final mixing function used by Paul Hsieh in SuperFastHash. */
k ^= k << 3;
k += k >> 5;
@@ -709,9 +716,7 @@ int_insert(NODE *symbol, long k, uint32_t hash1)
b = symbol->buckets[hash1];
- /* Only the first bucket in the chain can be partially full,
- * but is never empty.
- */
+ /* Only the first bucket in the chain can be partially full, but is never empty. */
if (b == NULL || (i = b->aicount) == 2) {
getbucket(b);
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-05 09:05:26 +0000