Commit | Line | Data |
---|---|---|
a24bd519 LM |
1 | #include <malloc.h> |
2 | ||
3 | #include "alloc.h" | |
4 | ||
5 | #include "element.h" | |
6 | ||
7 | /* global variables */ | |
8 | ||
9 | /* allocate new element */ | |
10 | ||
11 | element_t *newelement (func_t function, int nbops, int prio) | |
12 | { | |
13 | element_t *new = (element_t *) callocordie (1, sizeof (element_t)); | |
14 | if (nbops) { | |
15 | new->ops = (element_t **) callocordie (nbops, sizeof (element_t *)); | |
16 | } | |
17 | new->func = function; | |
18 | new->nbops = nbops; | |
19 | new->prio = prio; | |
20 | ||
21 | return new; | |
22 | } | |
23 | ||
24 | /* desallocate element */ | |
25 | ||
26 | void delelement (element_t *root) | |
27 | { | |
28 | if ((root != NULL) && (root != ERROR_OP)) { | |
29 | int i; | |
30 | for (i = 0; i < root->nbops; i++) { | |
31 | delelement (root->ops[i]); | |
32 | } | |
33 | if (root->nbops) { | |
34 | free (root->ops); | |
35 | } | |
36 | free (root); | |
37 | } | |
38 | } | |
39 | ||
40 | /* duplicate element */ | |
41 | ||
42 | element_t *dupelement (element_t *root) | |
43 | { | |
44 | element_t *tmp = NULL; | |
45 | int i; | |
46 | ||
47 | if ((root == NULL) || (root == ERROR_OP)) { | |
48 | return root; | |
49 | } | |
50 | tmp = newelement (root->func, root->nbops, root->prio); | |
51 | tmp->value = root->value; | |
52 | for (i = 0; i < root->nbops; i++) { | |
53 | tmp->ops[i] = dupelement (root->ops[i]); | |
54 | } | |
55 | return tmp; | |
56 | } | |
57 | ||
58 | /* vim: set ts=4 sw=4 et: */ |