X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=util.h;h=c4772727fe0b52a45575b04d366b8559acb1ac33;hb=e396d3e091801135cf20b76d69199a9955ff3dc9;hp=965ca4e485ddfab3489c54cb18a328eece7b818f;hpb=d7d862c402564b4fe29f17e1a55cdbb2967aa6fd;p=wmpus

diff --git a/util.h b/util.h
index 965ca4e..c477272 100644
--- a/util.h
+++ b/util.h
@@ -1,3 +1,4 @@
+/* Misc macros */
 #define MAX(a,b) ((a) > (b) ? (a) : (b))
 #define MIN(a,b) ((a) < (b) ? (a) : (b))
 
@@ -5,6 +6,7 @@
 
 #define countof(x) (sizeof(x)/sizeof((x)[0]))
 
+/* Constant lenght map functitons */
 #define map_getg(map, test) ({ \
 	int i; \
 	for (i = 0; i < countof(map) && !(test); i++); \
@@ -15,3 +17,22 @@
 #define map_getr(m,k)   map_getg(m,k==*(((typeof(k)*)&m[i+1])-1))
 #define map_getk(m,k,a) map_getg(m,k==m[i].a)
 
+/* Linked lists */
+typedef struct list {
+	struct list *prev;
+	struct list *next;
+	void   *data;
+} list_t;
+
+list_t *list_insert(list_t *after, void *data);
+
+void list_insert_after(list_t *after, void *data);
+
+list_t *list_append(list_t *before, void *data);
+
+list_t *list_remove(list_t *head, list_t *item);
+
+int list_length(list_t *item);
+
+/* Misc */
+int error(char *fmt, ...);