/*
 * =====================================================================================
 *
 * Filename: Thread2.cpp
 *
 * Description:
 *
 * Version: 1.0
 * Created: 2016年09月22日 22时25分28秒
 * Last Modified: 2020年12月26日 14:58:03
 * Revision: none
 * Compiler: gcc
 *
 * Author: zt (),
 * Organization:
 *
 * =====================================================================================
 */

#include <iostream>
#include <atomic>
#include <thread>
#include <vector>

typedef std::atomic<int> amc_int_t;

amc_int_t global_counter ( 0 );

void increase_global ( int n )
{
 for ( int i = 0; i < n; ++i )
 ++global_counter;
}

void increase_reference ( amc_int_t& val, int n )
{
 for ( int i = 0; i < n; ++i )
 ++val;
}

class C : public amc_int_t
{
 public:
 C() : amc_int_t ( 0 )
 {

 }

 void increase_member ( int n )
 {
 for ( int i = 0; i < n; ++i )
 fetch_add ( 1 );
 }

};

int main ( int argc, char* argv[] )
{
 ( void ) argc;
 ( void ) argv;

 std::vector<std::thread> threads;
 std::cout << ".........\n";

 for ( int i = 1; i <= 50000; ++i )
 threads.push_back ( std::thread ( increase_global, 1000 ) );

 for ( auto& ele : threads )
 ele.join();

 std::cout << "global: " << global_counter << std::endl;

 return 0;
}