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/* evilwm - minimalist window manager for X11
* Copyright (C) 1999-2022 Ciaran Anscomb <evilwm@6809.org.uk>
* see README for license and other details. */
// Basic linked list handling code. Operations that modify the list
// return the new list head.
#ifndef EVILWM_LIST_H__
#define EVILWM_LIST_H__
// Each list element is of this deliberately transparent type:
struct list {
struct list *next;
void *data;
};
// Each of these return the new pointer to the head of the list:
struct list *list_insert_before(struct list *list, struct list *before, void *data);
struct list *list_prepend(struct list *list, void *data);
struct list *list_append(struct list *list, void *data);
struct list *list_delete(struct list *list, void *data);
struct list *list_to_head(struct list *list, void *data);
struct list *list_to_tail(struct list *list, void *data);
// Returns element in list:
struct list *list_find(struct list *list, void *data);
#endif
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