(C++) OperatorStreamOutExample1

 

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

 

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TEMPLATE = app CONFIG += console CONFIG -= qt QMAKE_CXXFLAGS += -std=c++11 -Wall -Wextra -Weffc++ -Werror SOURCES += main.cpp

 

 

 

 

 

./CppOperatorStreamOutExample1/main.cpp

 

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#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... */