main.c

// main entry point for program
int main(void)
{
    int c;
    do
    {
        // print instructions
        printf("\nMENU\n\n"
            "1 - delete\n"
            "2 - insert\n"
            "3 - search \n"
            "4 - traverse\n"
            "0 - quit\n\n");

        // get command
        printf("Command: ");
        c = GetInt();

        // try to execute command
        switch (c)
        {
            case 1: delete(); break;
            case 2: insert(); break;
            case 3: search(); break;
            case 4: traverse(); break;
        }
    }
    while (c != 0);

    // free list before quitting
    node* ptr = first;
    while (ptr != NULL)
    {
        node* predptr = ptr;
        ptr = ptr->next;
        free(predptr);
    }
}