// Mr. Minich
// CMPSC 101
// Ch. 3 Demo Program #4
// January 30, 2000 
// Purpose - to illustrate the relationship between char and int datatypes as well as typecasting

#include <iostream>
using namespace std;

int main()
{
	char start = 65;     // initialized to the letter 'A' (see the ASCII Table)
                         //     since start is the char datatype
	char letterM = 77;   // initialized to the letter 'M'
	char mystery;        // used to produce an interesting effect later in the program
	int gap = 32;	     // the numerical difference between upper & lowercase alphabets
			    		 //     in the ASCII Table

	cout << "The first letter is " << start << endl;
	cout << "The first lowercase letter is " << start + gap << endl;

	// this line prints an integer since C++ uses promotes the 
	//    sum of an int and a char to an int

	cout << "The first lowercase letter is really " << char (start + gap) << endl;

    	// the programmer uses typecasting to force compiler to 
	//     printout the actual letter that is desired

	mystery = letterM + 257; 
	cout << "The letter of M is " << mystery << endl;
	cout << "The ASCII value of mystery is " << int (mystery) << endl;

	// example of typecasting to force a char to be treated as an int

	return 0;
}// end of main