int fold_duplicates_buf::overflow(int c)
{
if(c == EOF)
return 0;
m_buffer += c;
if(c == '\n')
{
if(m_buffer == m_last_buffer)
{
m_duplicate_count++;
}
else
{
if(!print_duplicates())
return EOF;
if(m_streambuf->sputn(m_buffer.c_str(), m_buffer.size()) != (std::streamsize) m_buffer.size())
return EOF;
m_last_buffer = m_buffer;
}
m_buffer.erase();
}
return c;
}
/**
* Run the navigational loop
*
* @return Number on exit. 0 for no errors.
*/
int Run()
{
int sel;
int arr_length = 0;
Car ** car_array = (Car **) malloc(10 * sizeof(struct Car *));
// While true
while(true) {
// Print the menu and get a selection
sel = PrintMenu();
// Next step depends on the selection made
switch(sel) {
// User chose 1
case 1:
printf("You selected \"Print the cars array\"\n\n");
print_cars_array(car_array, &arr_length);
break;
// User chose 2
case 2:
printf("You selected \"Insert the car records into a sorted array\"\n\n");
insert_sorted_array(car_array, &arr_length);
break;
// User chose 3
case 3:
printf("You selected \"Sort cars by year\"\n\n");
sort_cars_by_year(car_array, &arr_length);
break;
// User chose 4
case 4:
printf("You selected \"Print duplicates\"\n\n");
print_duplicates(car_array, &arr_length);
break;
// User chose 5
case 5:
printf("You selected \"Exit\"\n\n");
// Return here, with no erros, to exit the function.
// Clean up will be next
return 0;
// User chose soomething not on the menu
default:
printf("Please enter a valid number from the menu!\n\n");
break;
}
printf("--------------------\n");
}
}
fold_duplicates_buf::~fold_duplicates_buf()
{
// Flush any leftover output ...
print_duplicates();
if(m_buffer.size())
m_streambuf->sputn(m_buffer.c_str(), m_buffer.size());
m_stream.rdbuf(m_streambuf);
}