while we're on the subject...any idea why this won't work for all ranges?

//Brian W. Papocchia

//Programming Assignment Set 3

//Part 4, Guessing Game program

//May 29, 2003


#include <iostream>

#include <iomanip>

#include <stdlib.h>

#include <time.h>

using namespace std;

void Instructions(void);	//game instructions

void GetRange(int &, int &);	//ask user for range to guess within

void GetSeed(void);		//set the random number generator seed

int  GetRandom(int &, int &);	//set a random integer in range

void PlayGame(int &, int &);	//game routine

void YouWin(int &, int &, int);	//user guesses number

void YouLose(int &);		//user fails to guess number

void main(void)

{

	int from, to;				//range to guess within

	Instructions();

	GetRange(from, to);

	while (from>0 || to>0)

	{

		PlayGame(from, to);

		cout << "If you want to play again..." << endl;

		GetRange(from, to);

		cout << endl;

	}

	cout << "Game over." << endl;

}

void Instructions(void)		//game instructions

{

	cout << "This program is a Guessing Game." << endl;

	cout << "You will have 10 guesses at my number." << endl;

	cout << "I will tell you if your guess is too high or too low." << endl;

	cout << "You can even define the range for my number (ex. 1 to 100)." << endl;

	cout << "---------------------------------------------------------------" << endl;

}

void GetRange(int &from, int &to)	//set range of number to guess within

{

	cout << "Please enter a range from which to guess." << endl;

	cout << "Enter two zeros or negative numbers to stop the program." << endl;

	cout << "---------------------------------------------------------------" << endl;

	cout << "Enter the low end of the range:  ";

	cin  >> from;

	cout << "Enter the high end of the range: ";

	cin  >> to;

	cout << "---------------------------------------------------------------" << endl;

	return;

}

void GetSeed(void)		//set the random number generator seed

{

	srand(unsigned(time((time_t *)NULL)));	/*sets seed based on computer time

					thus seed will be different on each execution of program*/

}

int GetRandom(int &low, int &high)	//set a random integer in range

{

	double random;

	random = rand() / ((double)(RAND_MAX) + 1);

	return (int)((high * random) + low);

}

void PlayGame(int &from, int &to)

{

	const int maxguesses = 10;	//set maximum allowed guesses

	int count;			//count guesses

	int guess;			//store user's guess

	int number;			//computer's number to guess

	GetSeed();

	number = GetRandom(from, to);

	count = 1;

	while (count <= maxguesses)

	{

		cout << "What is your guess? ";

		cin  >> guess;

		if (guess == number)

		{

			YouWin(number, count, maxguesses);

			break;	//break out of while loop

		}

		else if (guess > number)

			cout << "Your guess is too high." << endl;

		else cout << "Your guess is too low." << endl;

		cout << endl;

		count++;

	}

	if (count > maxguesses)

		YouLose(number);

	return;

}

void YouWin(int &num, int &guesses, int allowed)

{

	cout << "---------------------------------------------------------------" << endl;

	cout << "VERY GOOD!!!" << endl;

	cout << endl;

	cout << "My number was "<< setw(4) << num << ", and you got it in " << guesses;

	if (guesses == 1)

		cout << " try! Did you cheat? *wink*";

	else cout << " tries.";

	cout << endl;

	if (guesses == allowed)

		cout << "WHEW!!! YOU JUST MADE IT!!!" << endl;

	cout << "---------------------------------------------------------------" << endl;

	cout << endl;

	return;

}

void YouLose(int &num)

{

	cout << "I'm sorry. You are out of guesses." << endl;

	cout << "My number was: " << num << "." << endl;

	cout << "---------------------------------------------------------------" << endl;

	cout << endl;

	return;

}