ACE/examples/DLL/Today.h

   1 /* -*- C++ -*- */
   2
   3 //=============================================================================
   4 /**
   5  *  @file    Today.h
   6  *
   7  *  This class denotes the Today magazine which is derived from
   8  *  Magazine.
   9  *
  10  *  @author Kirthika Parameswaran <kirthika@cs.wustl.edu>
  11  */
  12 //=============================================================================
  13
  14
  15 #ifndef TODAY_H
  16 #define TODAY_H
  17
  18 #include "ace/os_include/os_stddef.h"
  19 #include "ace/OS_Memory.h"
  20 #include "Magazine.h"
  21
  22 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  23 # pragma once
  24 #endif /* ACE_LACKS_PRAGMA_ONCE */
  25
  26 /**
  27  * @class Today
  28  *
  29  * @brief This is an derived class of Magazine.
  30  *
  31  * Polymoriphism is exploited and an object pointer of Magazine
  32  * is bound to the Today object at runtime.
  33  */
  34 class Today : public Magazine
  35 {
  36 public:
  37   // The virtual abstract class method which returns the title of the
  38   // magazine.
  39   void title () override;
  40
  41   // Overload the new/delete opertors so the object will be
  42   // created/deleted using the memory allocator associated with the
  43   // DLL/SO.
  44   void *operator new (size_t bytes);
  45   // Overloaded new operator, nothrow_t variant.
  46   void *operator new (size_t bytes, const std::nothrow_t&);
  47   void operator delete (void *p, const std::nothrow_t&) noexcept;
  48   void operator delete (void *ptr);
  49 };
  50
  51 #endif /* TODAY_H */