2
/* doubly linked lists */
3
/* This is free software. No strings attached. No copyright claimed */
9
char *strncpy(char *dest, const char *src, size_t n) __THROW;
25
struct __dl_head *vv = v;
35
void dl_insert(void *head, void *val)
37
dl_next(val) = dl_next(head);
39
dl_next(dl_prev(val)) = val;
40
dl_prev(dl_next(val)) = val;
43
void dl_add(void *head, void *val)
45
dl_prev(val) = dl_prev(head);
47
dl_next(dl_prev(val)) = val;
48
dl_prev(dl_next(val)) = val;
51
void dl_del(void *val)
53
if (dl_prev(val) == 0 || dl_next(val) == 0)
55
dl_prev(dl_next(val)) = dl_prev(val);
56
dl_next(dl_prev(val)) = dl_next(val);
57
dl_prev(val) = dl_next(val) = 0;
60
char *dl_strndup(char *s, int l)
65
n = dl_newv(char, l+1);
76
char *dl_strdup(char *s)
78
return dl_strndup(s, (int)strlen(s));