11-12.cpp

#include <boost/random.hpp>
#include <iostream>
#include <cstdlib>

using namespace std;
using namespace boost;

typedef boost::mt19937 BaseGenerator;
typedef boost::uniform_real<double> Distribution;
typedef boost::variate_generator<BaseGenerator, Distribution> Generator;

double boostDoubleRand( ) {
  static BaseGenerator base;
  static Distribution dist;
  static Generator rng(base, dist);
  return rng( );
}

int main( ) {
  cout << "expect 5 numbers within the interval [0,1)" << endl;
  for (int i=0; i < 5; i++) {
    cout << boostDoubleRand( ) << "\n";
  }
  cout << endl;
}