More Organised

Quick_Compilation/dll.h

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+/*
+ * =====================================================================================
+ *
+ *       Filename:  dll.h
+ *
+ *    Description:  
+ *
+ *        Version:  1.0
+ *        Created:  28/01/24 07:58:51 PM IST
+ *       Revision:  none
+ *       Compiler:  gcc
+ *
+ *         Author:  YOUR NAME (), 
+ *   Organization:  
+ *
+ * =====================================================================================
+ */
+
+
+/*Header file for Doubly Linked List*/
+
+typedef struct dll_node_{
+
+    void *data;
+    struct dll_node_ *left;
+    struct dll_node_ *right;
+} dll_node_t;
+
+typedef struct dll_{
+    dll_node_t *head;
+} dll_t;
+
+
+/* Public Function declaration to create and return
+ * a new empty doubly linked list*/
+dll_t *
+get_new_dll();
+
+/*  Public Function declaration to add the application
+ *  data to DLL*/
+int
+add_data_to_dll(dll_t *dll, void *app_data);
+
+
+/*More functions*/
+int  /*return 0 on success and -1 on failure*/
+remove_data_from_dll_by_data_ptr (dll_t *dll, void *data);
+
+/*return 0 if empty, -1 if not empty*/
+int
+is_dll_empty (dll_t *dll);
+
+/* delete all nodes from a dll, but do not free appln data*/
+void
+drain_dll (dll_t *dll);
+