/* --- Function: void sort_list(Slist list) --- */
void sort_list(Slist list)
{
my_clearscrn();
printf("--- SORT LIST ---\n");
SLISTsort(list, my_cmp);
printf("\nCurrent list status(%d nodes, ascending) : ", SLISTsize(list));
SLISTtraverse(list, print, SLIST_FWD);
printf("\nCurrent list status(%d nodes, descending): ", SLISTsize(list));
SLISTtraverse(list, print, SLIST_BWD);
prompt_and_pause("\n\n");
}
/* --- Function: void create_random_nodes(Slist list, int nr_of_nodes) --- */
void create_random_nodes(Slist list, int nr_of_nodes)
{
int i=0, *pi, retval;
my_clearscrn();
/* Initialize the list.. */
printf("--- CREATED A SINGLY-LINKED LIST(%d NODES)- RANDOM INTEGER DATA ---", NR_OF_ITEMS);
do
{
pi = (int *)malloc(sizeof(int));
MALCHK(pi);
*pi = rand_int(1,50);
retval=SLISTinsnext(list, NULL, pi);
assert(retval == OK);
} while (++i < nr_of_nodes);
/* Display the list... */
printf("\n\nCurrent list status(%d nodes): ", SLISTsize(list));
SLISTtraverse(list, print, SLIST_FWD);
prompt_and_pause("\n\n");
}
/* --- Function: void search_node(Slist lst) --- */
void search_node(Slist lst)
{
int tmp;
char mess[BUFSIZ];
do
{
my_clearscrn();
printf("--- SEARCH NODE ---\n");
printf("\nCurrent list status(%d nodes): ", SLISTsize(lst));
SLISTtraverse(lst, print, SLIST_FWD);
tmp = read_int("\nEnter keydata for node to be found (-1=Quit): ", 0, 0);
if (tmp == -1)
break;
if (SLISTfindnode(lst, &tmp) == NULL) /* Node not found.. */
{
sprintf(mess, "Node %d NOT found..!", tmp);
prompt_and_pause(mess);
}
else
{
/* Search succesful - notify user.. */
sprintf(mess, "Node %d FOUND!", tmp);
prompt_and_pause(mess);
}
} while (TRUE);
}
/* --- Function: void final_status(Slist list) --- */
void final_status(Slist list)
{
my_clearscrn();
printf("--- FINAL STATUS ---\n");
/* Final list status... */
printf("\nFinal list contents(%d nodes): ", SLISTsize(list));
SLISTtraverse(list, print, SLIST_FWD);
}
/* --- Function: void print_list(Slist lst) --- */
void print_list(Slist lst)
{
my_clearscrn();
printf("--- PRINT LIST ---\n");
/* List status... */
printf("\nCurrent list status(%d nodes): ", SLISTsize(lst));
SLISTtraverse(lst, print, SLIST_FWD);
prompt_and_pause("\n\n");
}
void SLISTdestroy(Slist list)
{
void *data;
while (SLISTsize(list) > 0)
{
if (SLISTremnext(list, NULL, (void **)&data) == 0 && list->destroy !=
NULL)
list->destroy(data);
}
free(list);
}
/* --- Function: void rem_nodes(Slist list) --- */
void rem_nodes(Slist list)
{
int tmp, *pi, retval;
char mess[BUFSIZ];
do
{
my_clearscrn();
printf("--- REMOVE NODE FROM LIST ---\n");
printf("\nCurrent list status(%d nodes): ", SLISTsize(list));
SLISTtraverse(list, print, SLIST_FWD);
tmp = read_int("\nEnter keydata for node to be removed (-1=Quit): ", 0, 0);
if (tmp == -1)
break;
/* Remove node - and free memory */
pi = &tmp;
if ((retval = SLISTfind_remove(list, (void **)&pi)) != OK)
{
if (retval == 1)
{
sprintf(mess, "Error: Node %d not found..!", tmp);
prompt_and_pause(mess);
}
else
{
if (retval == -2)
printf("\nError: Match-callback is missing... - bailing out!");
else
printf("\nFatal error... - bailing out!");
SLISTdestroy(list);
exit(retval);
}
}
else
{
/* Removal succesful - notify user.. */
sprintf(mess, "Node %d will be removed..!", *(int *)pi);
prompt_and_pause(mess);
/* Free node - after being removed from list.. */
my_destroy(pi);
}
} while (TRUE);
}
/* --- Function: void ins_nodes(Slist list) --- */
void ins_nodes(Slist list)
{
int tmp, *pi;
SlistNode node;
char mess[BUFSIZ];
do
{
my_clearscrn();
printf("--- ADD NODE - WITH DATA=99 - AFTER USER-SPECIFIED NODE ---\n");
printf("\nCurrent list status(%d nodes): ", SLISTsize(list));
SLISTtraverse(list, print, SLIST_FWD);
tmp = read_int("\nEnter (key)data, after which new node(key=99) will be inserted (-1=Quit): ", 0, 0);
if (tmp == -1)
break;
if ((node = SLISTfindnode(list, &tmp)) != NULL) /* Node found */
{
/* Insert node after first occurance of user-specified node */
pi = (int *)malloc(sizeof(int));
MALCHK(pi);
*pi = 99;
if ((SLISTinsnext(list, node, pi)) != OK)
{
printf("\nFatal error - exiting...!");
SLISTdestroy(list);
exit(-1);
}
else
{
sprintf(mess, "Node 99 will be inserted after node %d", *(int *)SLISTdata(node));
prompt_and_pause(mess);
}
}
else
{
sprintf(mess, "Error: Node %d not found...!", tmp);
prompt_and_pause(mess);
}
} while (TRUE);
}
