Memory Investigation - Looking at how chars are stored in memory.

main.cpp

#include "stdafx.h"
#include <iostream>
using namespace std;

void printHeader()
{
	cout << "Letter\t" << "ASCII\t" << "Hex\t\t" << "Address\t\n";
	cout << "---------------------------------------\n";
}

/**
 * Prints a given char out in it's many forms.
 * 1. as an alphabetical character
 * 2. as it's ASCII value
 * 3. as it's Hexadecimal value
 * 4. it's address in memory
*/
void printCharacter(char &letter)
{
	cout << letter << "\t";
	cout << (int)letter << "\t";
	cout << (int*)letter << "\t"; 
	cout << (int*)&letter << "\t\n";
}

/**
 * Prints a string of text one character at a time. 
 */
void printString()
{
	string text = "Hello World";

	for (size_t i = 0; i < text.length(); i++) {
		printCharacter(text[i]);
	}
}

int _tmain(int argc, _TCHAR* argv[])
{
	// Print out the character A in all it's forms
	char letter = 'A';
	cout << "Char Example\n";
	cout << "------------\n";
	printHeader();
	printCharacter(letter);

	// Print out each character of Hello World, in all their forms
	cout << "\n";
	cout << "String Examples\n";
	cout << "------------\n";
	printHeader();
	printString();
	return 0;
}