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Coin / include / Inventor / tools / SbLazyPimplPtr.h

Lars J. Aas 9e167d8 



Marius Kintel 3ba6b41 




























Lars J. Aas 9e167d8 















Lars J. Aas 2e69a8b 




Lars J. Aas 7ac4b60 
Lars J. Aas 9e167d8 











Lars J. Aas 7ac4b60 

Lars J. Aas 9e167d8 
















Lars J. Aas 2e69a8b 



Lars J. Aas 9e167d8 

#ifndef COIN_SBLAZYPIMPLPTR_H
#define COIN_SBLAZYPIMPLPTR_H

/**************************************************************************\
 * Copyright (c) Kongsberg Oil & Gas Technologies AS
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * Neither the name of the copyright holder nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "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 COPYRIGHT
 * HOLDER OR CONTRIBUTORS 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 OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\**************************************************************************/

// The SbLazyPimplPtr<> class is loosely based on the boost::pimpl_ptr<>-
// proposal of 2005 by Asger Mangaard.
//
// It is reimplemented here as separate classes, not with policy-based
// templates, because we still try to support compilers that don't support
// template templates (e.g. Visual C++ 6).
//
// See also SbPimplPtr<>, our implementation of the immediate-creation
// policy.

#include <Inventor/SbBasic.h>

/* ********************************************************************** */

#if defined(_MSC_VER) && (_MSC_VER < 1400) /* MSVC <8 */
#pragma warning(push)
#pragma warning(disable:4251) // for DLL-interface warning
#endif /* MSVC <8 */

template <class T>
class COIN_DLL_API SbLazyPimplPtr {
public:
  SbLazyPimplPtr(void);
  SbLazyPimplPtr(T * initial);
  SbLazyPimplPtr(const SbLazyPimplPtr<T> & copy);
  ~SbLazyPimplPtr(void);

  void set(T * value);
  T & get(void) const;

  SbLazyPimplPtr<T> & operator = (const SbLazyPimplPtr<T> & copy);

  SbBool operator == (const SbLazyPimplPtr<T> & rhs) const;
  SbBool operator != (const SbLazyPimplPtr<T> & rhs) const;

  const T * operator -> (void) const;
  T * operator -> (void);

protected:
  T * getNew(void) const;

protected:
  mutable T * ptr;

}; // SbLazyPimplPtr

#ifdef COIN_INTERNAL
// the implementation is in the .hpp class
#include <Inventor/tools/SbLazyPimplPtr.hpp>
#endif // COIN_INTERNAL

#if defined(_MSC_VER) && (_MSC_VER < 1400) /* MSVC <8 */
#pragma warning(pop)
#endif /* MSVC <8 */

/* ********************************************************************** */

#endif // !COIN_SBLAZYPIMPLPTR_H