// Mr. Minich
// Computer Science Using C++
// Ch. 9 Demo Program #7
// July 21, 2000
// Purpose - to illustrate passing a char argument to a function that
//				returns a char

#include <iostream.h>

char encrypt(char x);	// changes a character

int main()
{
	char userLetter = 'a';	// character to be changed as entered by user

	cout << "Enter a letter to be encrypted: ";
	cin >> userLetter;

	cout << "The value of your letter is " << encrypt(userLetter) << endl;

	return 0;
} // end of main

char encrypt(char letterInputted)
{
	// accepts a character as an input
	// returns a character after it has been changed
	
	char temp;	// local temporary variable 

	temp =  ++letterInputted;	
	// incrementing operator works here to change letter to nextletter in alphabet
	
	// note that the 2 statements above could be consolidated to
	//		return ++letterInputted;

	return temp;

} // end of encrypt