#include "library.h"

void print_digit(const int d)
{ if (d == 0)
    print("zero");
  else if (d == 1)
    print("one");
  else if (d == 2)
    print("two");
  else if (d == 3)
    print("three");
  else if (d == 4)
    print("four");
  else if (d == 5)
    print("five");
  else if (d == 6)
    print("six");
  else if (d == 7)
    print("seven");
  else if (d == 8)
    print("eight");
  else if (d == 9)
    print("nine");
  else 
    print("\n**** ERROR ****\n"); }

void print_digits(const int amt, 
                const int divisor,
                const bool printed)
{ cout << "called, amt = " << amt << 
          ", divisor = " << divisor << 
          ", printed = " << printed << "\n";
  if (divisor == 0) 
  { cout << "quick escape\n";
    return; }
  const int d = amt / divisor;
     // in order to skip leading zeros, this digit should be printed
     //   if it is not zero (d != 0),
     //   or if we have already printed an earlier digit (printed == true),
     //   or if this is the final digit anyway (divisor == 1)
  if (d != 0 || printed == true || divisor == 1)
  { cout << "printing\n";
    print_digit(d);
    print(" ");
    print_digits(amt - d*divisor, divisor/10, true); }
  else
  { cout << "skipping\n";
    print_digits(amt - d*divisor, divisor/10, false); }
  cout << "FINISHED, amt = " << amt << 
        ", divisor = " << divisor << 
        ", printed = " << printed << "\n"; }


   // This is a "wrapper" function. It doesn't do any real work, it just wraps
   // itself around the real function as an extra layer, giving the programmer
   // a much simpler way to use the real function.
void print_digits(const int num)
{ print_digits(num, 1000000000, false); }


void main()
{ print_digits(13792);
  new_line(); }