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++11

Compiler(s):

G++ 4.9.2

Libraries used:

STL: GNU ISO C++ Library, version 4.9.2

Qt project file: ./CppOperatorStreamOutExample1/CppOperatorStreamOutExample1.pro


TEMPLATE = app

CONFIG += console

CONFIG -= qt

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

SOURCES += main.cpp

./CppOperatorStreamOutExample1/main.cpp


#include <iostream>



struct MyClass

{

  MyClass(const int x) noexcept : m_x(x) {}

  private:

  const int m_x;

  friend std::ostream& operator<<(std::ostream& os, const MyClass& myClass) noexcept;

};



std::ostream& operator<<(std::ostream& os, const MyClass& myClass) noexcept

{

  os << "MyClass.value: " << myClass.m_x;

  return os;

}



int main()

{

  const MyClass my_class(13);

  std::cout << my_class << '\n';

}



/* Screen output



MyClass.value: 13

Press <RETURN> to close this window...



*/

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(C++) OperatorStreamOutExample1

Technical facts

Qt project file: ./CppOperatorStreamOutExample1/CppOperatorStreamOutExample1.pro

./CppOperatorStreamOutExample1/main.cpp