Write a program to convert a digit into its English name

Write a program to convert a digit into its English name. Digit must be greater than 0 and less than 1000. Make sure to validate input. Program should continue to run until user is finished (user can convert as many digits as wishes).



Use at least four functions:


A few functions to consider:

string digit_name(int);
string teen_name(int);
string tens_name(int);
string int_name(int);




SAMPLE RUN

Please enter a positive number (between 0 and 1000): -123

Integer must be between 0 and 1000 Re-enter number=>123

one hundred twenty three

Another number ?? (1 for yes, 2 for no = > 1

Please enter a positive number (between 0 and 1000): 32

thirty two

Another number ?? (1 for yes, 2 for no = > 1

Please enter a positive number (between 0 and 1000): 1200

Integer must be between 0 and 1000 Re-enter number=>12

twelve

Another number ?? (1 for yes, 2 for no = > 1

Please enter a positive number (between 0 and 1000): 120

one hundred twenty

Another number ?? (1 for yes, 2 for no = > 2