Source code

/******************************************************************************
 *
 * Copyright (c) 2008 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer.
 *  
 * 2. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
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 *
 *
 *  SmartPtrs.h
 *
 *****************************************************************************/

// 2008/08/04  
// 2017/02/20 Updated.
#pragma once

#include <sol\Object.h>

namespace SOL {

/**
 * SmatPtrs is a class to represent of array of object.
 * SmatPtrs<Object> array(new Object[100]);
 * Object* objects = (Object*)array;
 * The objects will be destroyed by call 'delete [] objects'
 * int the destructor of SmartPtrs.
 */

template <class T> class SmartPtrs {

private:
  T* ptr;

public:
  /**
   * Constructor
   */
  SmartPtrs()
  :ptr(NULL) 
  {
  }

  /**
   * Constructor
   */
  SmartPtrs(T* t)
  :ptr(t) 
  {
  }

  /**
   * Destructor
   */
  ~SmartPtrs()  
  {
    if (ptr) {
      delete [] ptr;
      ptr = NULL;
    }
  }

  operator T*() 
  { 
    return ptr;
  }

  
  T&  operator*()  
  { 
    return *ptr;
  }

  T**  operator&() 
  {
    return &ptr;
  }

  T*  operator->() 
  {
    return ptr;
  }

  T* operator=(T* t) 
  {
    if (ptr != t) {      
      delete [] ptr;
      ptr = t;
    }
    return ptr;
  }
};

}