Teuchos_RCPBoostSharedPtrConversionsDecl.hpp

// @HEADER
// *****************************************************************************
//                    Teuchos: Common Tools Package
//
// Copyright 2004 NTESS and the Teuchos contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER
 
#ifndef TEUCHOS_RCP_BOOST_SHAREDPTR_CONVERSIONS_DECL_HPP
#define TEUCHOS_RCP_BOOST_SHAREDPTR_CONVERSIONS_DECL_HPP
 
#include "Teuchos_RCPDecl.hpp"
#include "boost/shared_ptr.hpp"
 
 
namespace Teuchos {
 
 
template<class T>
class DeallocBoostSharedPtr
{
public:
  DeallocBoostSharedPtr( const boost::shared_ptr<T> &sptr ) : sptr_(sptr) {}
  typedef T ptr_t;
  void free( T* ptr_in ) const { sptr_.reset(); }
  const boost::shared_ptr<T>& ptr() const { return sptr_; }
private:
  mutable boost::shared_ptr<T> sptr_;
  DeallocBoostSharedPtr(); // Not defined and not to be called!
};
 
 
template<class T>
class RCPDeleter
{
public:
  RCPDeleter( const RCP<T> &rcp ) : rcp_(rcp) {}
  typedef void result_type;
  typedef T * argument_type;
  void operator()(T * x) const { rcp_ = null; }
  const RCP<T>& ptr() const { return rcp_; }
private:
  mutable RCP<T> rcp_;
  RCPDeleter(); // Not defined and not to be called!
};
 
 
template<class T>
RCP<T> rcp( const boost::shared_ptr<T> &sptr );
 
 
template<class T>
boost::shared_ptr<T> shared_pointer( const RCP<T> &rcp );
 
 
} // namespace Teuchos
 
 
namespace boost {
 
 
template<class T> inline
bool is_null( const boost::shared_ptr<T> &p )
{
  return p.get() == 0;
}
 
 
template<class T> inline
bool nonnull( const boost::shared_ptr<T> &p )
{
  return p.get() != 0;
}
 
 
} // namespace boost
 
 
#endif  // TEUCHOS_RCP_BOOST_SHAREDPTR_CONVERSIONS_DECL_HPP