int Menu::showMenu() {
unsigned int option;
bool valid = false;
cout << title << endl;
for(unsigned int i = 0; i<items.size(); i++) {
cout << i + 1 << " - " << items[i] << endl;
}
while(!valid) {
option = promptInt("Choose an option: ");
valid = false;
for (unsigned int i = 0; i<items.size(); i++) {
if(i+1 == option) {
valid = true;
}
}
if(!valid) {
cout << endl << "This input is not valid. Please try and follow the indicated instructions." << endl << endl;
}
}
cout << endl;
return option;
}
int promptSize(int* size) {
int success = promptInt(size);
if (*size < 0) {
success = 0;
}
return success;
}
int main(void) {
int size;
int validInput = 0;
printf("BoundedQueue:\n\n");
while (!validInput) {
printf("Enter desired queue size: ");
validInput = promptSize(&size);
if (!validInput) {
printf("invalid size\n");
}
}
BoundedQueue bq(size);
char cmd[3]; /* to hold "x\n\0" where x = command letter */
while (cmd[0] != 'q') {
printf("Enter command - (e)nqueue, (d)equeue, or (q)uit: ");
validInput = promptString(cmd, 3);
if (!validInput) {
printf("invalid\n");
continue;
}
int element;
if (cmd[0] == 'e') {
printf("Enter integer to enqueue: ");
promptInt(&element);
bq.enqueue(element);
if (size <= 25) {
printQueue(bq);
printf("\n");
}
}
else if (cmd[0] == 'd') {
printf("Dequeued integer: %d\n", bq.dequeue());
if (size <= 25) {
printQueue(bq);
printf("\n");
}
}
}
return 0;
}
