C++ block execution timer

blockTimer.cpp

#include <chrono>
#include <iostream>
class Timer {
  std::chrono::high_resolution_clock::time_point start, end;

public:
  Timer() {
    start = std::chrono::high_resolution_clock::now();
  }

  ~Timer() {
    end = std::chrono::high_resolution_clock::now();

    std::cout << "Execution took: " << std::chrono::duration_cast<std::chrono::microseconds>(end - start).count() << " microseconds\n";
  }
};

//  The timer measures time of executing a block of code, after the line it was constructed.
//  For example, below code measures the time it took to execute the whole program, and prints
//  it to the standard output. Time is measured in microseconds.

//int main() {
//  Timer timer;
//  /* code goes here */
//}