int main(int argc, char const *argv[])
{
// creating a new list
dll_t *list = dll_create();
dll_registerCompareFn(list, compareFn);
dll_registerFreeFn(list, freeFn);
dll_registerPrintFn(list, printFn);
// ask for the number of persons to enter
puts("How many persons do you like to enter?");
char input[sizeof(stdin)];
fgets(input, sizeof(stdin), stdin);
int x;
sscanf(input, "%d", &x);
// ask for person data for x times
int i;
for(i = 0; i < x; i++)
{
dll_pushTail(list, askPersonData() );
}
// print data
dll_print(list);
puts("");
// reverse the list
puts("reverse");
dll_reverse(list);
// use dll iterator functions in a for loop to print the reversed list
for(dll_head(list); dll_hasNext(list); dll_next(list))
{
printFn(list->curr->data);
}
puts("sort");
dll_sort(list);
// use dll iterator functions in a while loop to print the sorted list
dll_head(list);
while(dll_hasNext(list))
{
printFn(list->curr->data);
dll_next(list);
}
printf("List size: %ld\n", dll_size(list));
// empty the whole list
dll_clear(list);
return 0;
}
/*purely designed for printing the "track" stack, since it is the only place
to be able to use this function*/
void printStack(Stack *s, void (*printFn)(void *)) {
int i;
printf("#NumQuestions Responses\n\n");
/*iterate 2 items at a time*/
for (i=0;i<(s->nextFree);i+=2) {
printf("#");
printFn(s->data[i]);
printf(" ");
printFn(s->data[i+1]);
printf("\n");
}
printf("#---------------------------------\n\n");
}
void
stack_print(Stack *s, void(printFn)(void *)) {
int i;
if (stack_isEmpty(s)) {
fprintf(stderr, "Empty Stack\n");
return;
}
for (i=0;i<s->top;i++) {
printFn(s->A[i]);
}
printf("\n");
}