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// duration::count
#include <iostream>
#include <ratio>
#include <chrono>
int main ()
{
typedef std::chrono::duration<int,std::milli> milliseconds_type;
milliseconds_type foo (1000); // 1 second
foo*=60;
std::cout << "duration (in periods): ";
std::cout << foo.count() << " periods.";
std::cout << std::endl;
std::cout << "duration (in seconds): ";
std::cout << foo.count() * milliseconds_type::period::num / milliseconds_type::period::den;
std::cout << std::endl;
return 0;
}
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