(C++) InheritanceExample1

 

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: ./CppInheritanceExample1/CppInheritanceExample1.pro

 

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

 

 

 

 

 

./CppInheritanceExample1/main.cpp

 

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#include <iostream> struct Person {   ~Person() {}   virtual void SayHello() const = 0; }; struct GrumpyPerson : public Person {   void SayHello() const { std::cout << "...\n"; } }; struct HappyPerson : public Person {   void SayHello() const { std::cout << "Hello!\n"; } }; int main() {   //Base b; //Cannot create instance of abstract class   const GrumpyPerson g;   g.SayHello();   const HappyPerson h;   h.SayHello(); } /* Screen output: ... Hello! Press <RETURN> to close this window... */