Teuchos_getRawPtr.hpp

// @HEADER
// ***********************************************************************
//
//                    Teuchos: Common Tools Package
//                 Copyright (2004) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// 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. 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.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "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 SANDIA CORPORATION OR THE
// 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.
//
// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
//
// ***********************************************************************
// @HEADER
 
#ifndef TEUCHOS_GETRAWPTR_HPP
#define TEUCHOS_GETRAWPTR_HPP
 
#include "Teuchos_ArrayRCP.hpp"
 
namespace Teuchos {
 
template<class Container>
class RawPointerConversionTraits {
  // Empty : will fail if specialization doesn't exist
};
 
 
template<class Container>
typename RawPointerConversionTraits<Container>::Ptr_t
getRawPtr( const Container& c )
{
  return RawPointerConversionTraits<Container>::getRawPtr(c);
}
 
 
// partial specialization for C pointer
template<class RawType>
class RawPointerConversionTraits<RawType*>
{
public:
  typedef RawType* Ptr_t;
  static Ptr_t getRawPtr( RawType* p ) { return p; }
};
 
// partial specialization for ArrayRCP
template<class T>
class RawPointerConversionTraits<ArrayRCP<T> >
{
public:
  typedef typename ArrayRCP<T>::pointer Ptr_t;
  static Ptr_t getRawPtr( const ArrayRCP<T>& arcp ) { return arcp.getRawPtr(); }
};
 
// ToDo: Add specializations as needed!
 
} // namespace Teuchos
 
#endif // TEUCHOS_GETRAWPTR_HPP