// WriteRandom.cpp
// tom bailey   8 sep 08

// Write a file of random numbers.
// The filename, number of numbers, and number range
// are entered by the user.

#include <string>
using std::string;
#include <iostream>
using std::cout;
using std::cin;
using std::endl;
#include <fstream>
using std::ofstream;
#include <cmath>

int main()
{
	string filename;
	cout << "Enter file name: ";
	cin >> filename;
	ofstream outfile( filename.c_str() );

	int n = 0;
	int low = 0;
	int high = 0;
	cout << "Enter number of numbers to write: ";
	cin >> n;
	cout << "Enter range (low, high): ";
	cin >> low >> high;

	for( int i=0; i<n; ++i ) {
	//	int random = low + rand() % ( high - low + 1 );
		double uniRand = double( rand() ) / RAND_MAX;
		int random = low + floor( uniRand * ( high - low + 1 ) );
		cout << uniRand << "  " << random << endl;
		outfile << random << endl;
	}

	cout << n << " random (" << low << ", " << high 
		<< ") numbers written to " << filename << endl;

	return 0;
}