/usr/include/trilinos/Teuchos_getBaseObjVoidPtr.hpp is in libtrilinos-dev 10.4.0.dfsg-1ubuntu2.
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// ***********************************************************************
//
// 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.
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
//
// ***********************************************************************
// @HEADER
#ifndef TEUCHOS_GET_BASE_OBJ_VOID_PTR
#define TEUCHOS_GET_BASE_OBJ_VOID_PTR
#include "Teuchos_ConfigDefs.hpp"
#ifdef HAS_TEUCHOS_BOOST_IS_POLYMORPHIC
// Internal Trilinos code should check if the macro is defined to see if
// getBaseObjPtr() is supported or not.
#define HAS_TEUCHOS_GET_BASE_OBJ_VOID_PTR 1
#include <boost/type_traits/is_polymorphic.hpp>
namespace Teuchos {
template<bool isPolymorphic, typename T>
class GetBaseObjVoidPtrImpl {};
template<typename T>
class GetBaseObjVoidPtrImpl<true, T> {
public:
static const void* getBaseObjVoidPtr(T *p)
{
return dynamic_cast<const void*>(p);
}
};
template<typename T>
class GetBaseObjVoidPtrImpl<false, T> {
public:
static const void* getBaseObjVoidPtr(T *p)
{
return static_cast<const void*>(p);
}
};
/** \brief Return a const void* pointing to the base of an object.
*
* This function uses the boost::is_polymorphic traits class to determine if
* type T is a polymorphic type or a non-polymorphic and then calls
* dynamic_cast or static_cast, respectively, to return the base pointer to
* the object.
*
* The base pointer to an object is crtical to know if you need to determine
* if two pointers are pointing to the same object or not.
*
* NOTE: This function will not even be defined if
* HAS_TEUCHOS_GET_BASE_OBJ_VOID_PTR is not defined (which currently requires
* boost support but that may change later).
*
* \ingroup teuchos_language_support_grp
*/
template<typename T>
const void* getBaseObjVoidPtr(T *p)
{
typedef GetBaseObjVoidPtrImpl<boost::is_polymorphic<T>::value, T> GBOVPT;
return GBOVPT::getBaseObjVoidPtr(p);
}
} // end namespace Teuchos
#endif // HAS_TEUCHOS_BOOST_IS_POLYMORPHIC
#endif // TEUCHOS_GET_BASE_OBJ_VOID_PTR
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