C++ high_resolution_clock weird output

Question

I am currently trying to calculate the delta time of a loop in cpp. Currently i use this code

#include <chrono>
int main()
{

typedef std::chrono::high_resolution_clock Clock;
typedef std::chrono::duration<float> fsec;

auto lastTime = Clock::now();
auto currentTime = Clock::now();
fsec passedTime = currentTime - lastTime;
while (true)
{
    lastTime = currentTime;
    printf("");
    printf("");
    printf("");
    printf("");
    printf("");
    printf("");
    printf("");
    printf("");
    printf("");
    printf("");
    currentTime = Clock::now();
    passedTime = currentTime - lastTime;
    printf("%i\n", passedTime.count());
}

return 0;
}

This is not the actual code i use in the program but the delta time calculation and the output is the exact same as in this sample.

It used to work fine and output a number of about ~0.0167 when locked to 60 ticks/s by GLFW and a ways lower number that at about 6k ticks/s.

My Problem is that I shifted everything out of the main function into a method and now get this result

It seems like I changed something by mistake but I can't figure out what I've changed.

Answer 1

Your printf is wrong, the data is a float, but the printf format is an int.