add Tag_Compare()

src/taglist.c

@@ -6,3 +6,17 @@ void Tag_Add (taglist_t* list, const UINT16 tag)
 	list->tags = Z_Realloc(list->tags, (list->count + 1) * sizeof(list->tags), PU_LEVEL, NULL);
 	list->tags[list->count++] = tag;
 }
+
+boolean Tag_Compare (const taglist_t* list1, const taglist_t* list2)
+{
+	size_t i;
+
+	if (list1->count != list2->count)
+		return false;
+
+	for (i = 0; i < list1->count; i++)
+	if (list1->tags[i] != list2->tags[i])
+		return false;
+
+	return true;
+}

src/taglist.h

@@ -11,4 +11,5 @@ typedef struct
 } taglist_t;
 
 void Tag_Add (taglist_t* list, const UINT16 tag);
+boolean Tag_Compare (const taglist_t* list1, const taglist_t* list2);
 #endif //__R_TAGLIST__