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SubjectRe: Generic list push/pop
On Sun, Aug 18, 2002 at 09:21:41PM +0200, Daniel Phillips wrote:
> I took a run at writing generic single-linked list push and pop macros, to be
> used in the form:

Dear gawd, I've gone blind.

How's this look?


struct slist
struct slist *next;

static inline void slist_add(struct slist *head, struct slist *elem)
elem->next = head->next;
head->next = elem;
#define slist_push(head, elem) slist_add(head, elem)

static inline struct slist *slist_pop(struct slist *head)
struct slist *elem = head->next;
if (elem) {
head->next = elem->next;
elem->next = NULL;
return elem;
static inline int slist_remove(struct slist *head, struct slist *elem)
struct slist *curr, *prev;
for (prev = head, curr = head->next; curr; prev = curr, curr = curr->next)
if (curr == head) {
prev->next = curr->next;
curr->next = NULL;
return 1;
return 0;
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