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// (C) Copyright 2012 Howard Hinnant
// (C) Copyright 2012 Vicente Botet
//  Distributed under the Boost Software License, Version 1.0. (See accompanying
//  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
// adapted from the example given by Howard Hinnant in
#define BOOST_THREAD_VERSION 4
#include <iostream>
#include <boost/thread/scoped_thread.hpp>
#include <boost/thread/ostream_buffer.hpp>
void use_cerr()
  using namespace boost;
  chrono::steady_clock::time_point tf = chrono::steady_clock::now() + chrono::seconds(5);
  int i = 0;
  while (chrono::steady_clock::now() < tf)
    ostream_buffer<std::ostream> mcerr(std::cerr);
    mcerr.stream() << "logging data to cerr " << i++ << "\n";
    this_thread::sleep_for(chrono::milliseconds(250));
void use_cout()
  using namespace boost;
  chrono::steady_clock::time_point tf = chrono::steady_clock::now() + chrono::seconds(5);
  int i = 0;
  while (chrono::steady_clock::now() < tf)
    ostream_buffer<std::ostream> mcout(std::cout);
    mcout.stream() << "logging data to cout " << i++ << "\n";
    this_thread::sleep_for(chrono::milliseconds(500));
  using namespace boost;
  scoped_thread<> t1(&use_cerr);
  scoped_thread<> t2(&use_cout);
  this_thread::sleep_for(chrono::seconds(2));
  std::string nm = "he, he\n";
    ostream_buffer<std::ostream> mcout(std::cout);
    mcout.stream() << "Enter name: \n";
  t1.join();
  t2.join();
    ostream_buffer<std::ostream> mcout(std::cout);
    mcout.stream() << nm;
  return 0;

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