Adapter mode for C + + design mode

The object adapter has the following characteristics:

1. Sometimes, you will find that it is not easy to construct an object of the adaptee type;
2. When adding a new abstract method to the Adaptee, the adapter class does not need to make any adjustments and can perform the action correctly;
3. You can invoke methods of the Adaptee class subclass in the adapter class using a polypeptide.

Code implementation:

1 //Adapter.cpp: Defines the entry point of the console application. 2 //3 4#include"stdafx.h"5#include <iostream>6#include <string>7 using namespacestd;8 9 Ten classTarget One { A  Public: - Target () {} -     Virtual~Target () {} the     Virtual voidRequest () -     { -cout <<"target::request"<<Endl; -     } + }; - classAdaptee + { A  Public: at     voidspecificrequest () -     { -cout <<"adaptee::specificrequest"<<Endl; -     } - }; -  in classAdapter: PublicTarget - { to  Public: +Adapter (): M_adaptee (Newadaptee) {} -~Adapter () the     { *         if(M_adaptee! =NULL) $         {Panax Notoginseng             Deletem_adaptee; -M_adaptee =NULL; the         } +     } A     voidRequest () the     { +M_adaptee->specificrequest (); -     } $  $ Private: -Adaptee *m_adaptee; - }; the int_tmain (intARGC, _tchar*argv[]) - {Wuyicout<<"Adapter Mode:"<<Endl; theTarget *targetobj =NewAdapter (); -Targetobj->Request (); Wu     Deletetargetobj; -Targetobj =NULL; AboutSystem"Pause"); $     return 0; -}

Adapter mode for C + + design mode