Technical facts

Operating system(s) or programming environment(s)

Lubuntu 15.04 (vivid)

IDE(s):

Qt Creator 3.1.1

Project type:

Console application

C++ standard:

C++98

Compiler(s):

G++ 4.9.2

Libraries used:

STL: GNU ISO C++ Library, version 4.9.2

Qt project file: ./CppStdHigh_resolution_clockExample1/CppStdHigh_resolution_clockExample1.pro


include(../../ConsoleApplication.pri) #Or use the code below

# QT += core

# QT += gui

# greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

# CONFIG   += console

# CONFIG   -= app_bundle

# TEMPLATE = app

# CONFIG(release, debug|release) {

#   DEFINES += NDEBUG NTRACE_BILDERBIKKEL

# }

# QMAKE_CXXFLAGS += -std=c++11 -Wall -Wextra -Weffc++

# unix {

#   QMAKE_CXXFLAGS += -Werror

# }



include(../../Libraries/Boost.pri) #Or use the code below

# win32 {

#   INCLUDEPATH += \

#     ../../Libraries/boost_1_54_0

# }



SOURCES += main.cpp

./CppStdHigh_resolution_clockExample1/main.cpp


#include <chrono>

#include <cmath>

#include <iostream>



int main()

{

  const std::chrono::system_clock::time_point t = std::chrono::system_clock::now();

  const std::chrono::high_resolution_clock::time_point u = std::chrono::high_resolution_clock::now();



  //Burn some time

  for (int i=0; i!=100000000; ++i)

  {

    for (int j=0; j!=10; ++j)

    {

      std::sqrt(static_cast<double>(i + j));

    }

  }



  const std::chrono::system_clock::duration d = std::chrono::system_clock::now() - t;

  const std::chrono::system_clock::duration e = std::chrono::high_resolution_clock::now() - u;



  std::cout

    << std::chrono::duration_cast<std::chrono::milliseconds>(d).count() << " milliseconds" << '\n'

    << std::chrono::duration_cast<std::chrono::milliseconds>(e).count() << " milliseconds" << '\n'

    << std::endl;

}



/* Screen output:



7651 milliseconds

7651 milliseconds



Press <RETURN> to close this window...



*/

Go back to Richel Bilderbeek's C++ page.

Go back to Richel Bilderbeek's homepage.

This page has been created by the tool CodeToHtml

(C++) StdHigh_resolution_clockExample1

Technical facts

Qt project file: ./CppStdHigh_resolution_clockExample1/CppStdHigh_resolution_clockExample1.pro

./CppStdHigh_resolution_clockExample1/main.cpp