// Mr. Minich
// Computer Science Using C++
// September 9, 2000
// Ch. 9 Demo Program #4
// Purpose - to illustrate examples of passing by reference, by value,
//				& by address.

#include <iostream.h>
#include "M:\C++ Programming\AP classes\apstring.h"

// Since I've decided to place the function definitions
// above the main function which calls the functions, function
// prototypes are not required. (This is bad style, but possible.)

void passByVal(int a)
{
	a = 100;
}

void passByRef(int &frankGoody2Shoes)
// Notice that the use of the ampersand (&) causes the
// parameter to be passed by reference.
{
	frankGoody2Shoes = 100;
}

void passByAddress(char pseudonym[])
{
	pseudonym[0] = ' ';
}

int main()
{
	int pope = 5;
	int billyTheKid = 3;
	apstring address = "scot";

	passByVal(pope);
	passByRef(billyTheKid);
	passByAddress(address);
	cout << "This variable was passed by value: " << pope << endl;
	cout << "This variable was passed by reference: " << billyTheKid << endl;
	cout << "This string was passed by address: " << address << endl;
	return 0;
}// end of main