Summtest

sumtest.cpp

#include <iostream>
#include <chrono>
#include <cmath>

int main() {
  double sum;

  auto start = std::chrono::system_clock::now();

  for (double i = 0; i < 1000000; i++) {
    sum += std::sin(i);
  }

  auto stop = std::chrono::system_clock::now();
  auto delta = std::chrono::duration_cast<std::chrono::milliseconds>(stop - start);

  std::cout << delta.count();

  return 0;
}

sumtest.go

package main

import (
	"fmt"
	"math"
	"time"
)

func f() {
	var sum float64 = 0

	for i := float64(0); i < 1000000; i += 1 {
		sum += math.Sin(i)
	}
}

func main() {
	start := time.Now()
	f()
	fmt.Println(time.Now().Sub(start))
}