1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
#include <stdio.h>
#include "utlist.h"
typedef struct el {
int id, score;
struct el *next, *prev;
} el;
static int order_desc(el *a, el *b)
{
return (a->score > b->score) ? -1 : (a->score < b->score);
}
int main()
{
int i;
el *head = NULL;
el els[15], *e;
for (i=0; i<15; i++) {
els[i].id = (int)'a'+i;
els[i].score = i%7;
LL_INSERT_INORDER(head, &els[i], order_desc);
}
LL_FOREACH(head, e) {
printf("%c ", e->id);
}
printf("\n");
printf("DL_INSERT_INORDER\n");
head = NULL;
for (i=0; i<15; i++) {
DL_INSERT_INORDER(head, &els[i], order_desc);
}
DL_FOREACH(head, e) {
printf("%c ", e->id);
}
printf("\n");
printf("CDL_INSERT_INORDER\n");
head = NULL;
for (i=0; i<15; i++) {
CDL_INSERT_INORDER(head, &els[i], order_desc);
}
CDL_FOREACH(head, e) {
printf("%c ", e->id);
}
printf("\n");
CDL_FOREACH2(head, e, prev) {
printf("%c ", e->id);
}
printf("\n");
return 0;
}
|
