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//#define BOOST_CHRONO_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0
#include <iostream>
#include <unistd.h>
#include <boost/chrono.hpp>
#include <boost/chrono/chrono_io.hpp>
using namespace std;
using namespace boost::chrono;
template <typename Clock>
void test()
{
typename Clock::time_point start=Clock::now();
sleep(1);
typename Clock::time_point stop=Clock::now();
cout<<stop-start<<endl;
cout << start <<endl;
cout << stop <<endl;
}
int main() {
test<process_cpu_clock>();
test<process_real_cpu_clock>();
test<process_user_cpu_clock>();
test<process_system_cpu_clock>();
return 1;
}
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