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// @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_MPITRAITS_H
#define TEUCHOS_MPITRAITS_H

/*! \file Teuchos_MPITraits.hpp
 * \brief A templated traits class for binding MPI types to C++ types.
 *
 * \warning The class implemented in this file is DEPRECATED, since
 *   \c Teuchos::MPIComm is deprecated.
 *
 * The \c Teuchos::MPITraits class is for use with the \c
 * Teuchos::MPIComm class and is supposed to compile whether or not
 * Trilinos was built with MPI. If you need to convert directly to MPI
 * types (e.g., MPI_INT), please refer to Teuchos_MPIRawTraits.hpp.
*/
#include "Teuchos_MPIComm.hpp"

namespace Teuchos
{
  using std::string;

  /**
   * \class MPITraits
   * \ingroup MPI
   * \brief Templated traits class that binds MPI types to C++ types
   *
   * \warning This class is DEPRECATED, since it depends on the
   *   deprecated class \c MPIComm.
   *
   * \note Template specializations exist for datatypes:
   *   <tt>char</tt>, <tt>int</tt>, <tt>float</tt>, and
   *   <tt>double</tt>.
  */
  template <class T> class TEUCHOS_DEPRECATED MPITraits
  {
  public:
    /** \brief Return the MPI data type of the template argument */
    static int type();
  };

#ifndef DOXYGEN_SHOULD_SKIP_THIS	
  /** \ingroup MPI
   * Binds MPI_INT to int
   */
  template <> class MPITraits<int>
  {
  public:
    /** return the MPI data type of the template argument */
    static int type() {return MPIComm::INT;}
  };
	
  /** \ingroup MPI
   * Binds MPI_FLOAT to float
   */
  template <> class MPITraits<float>
  {
  public:
    /** return the MPI data type of the template argument */
    static int type() {return MPIComm::FLOAT;}
  };
	
  /** \ingroup MPI
   * Binds MPI_DOUBLE to double
   */
  template <> class MPITraits<double>
  {
  public:
    /** return the MPI data type of the template argument */
    static int type() {return MPIComm::DOUBLE;}
  };
	
  /** \ingroup MPI
   * Binds MPI_CHAR to char
   */
  template <> class MPITraits<char>
  {
  public:
    /** return the MPI data type of the template argument */
    static int type() {return MPIComm::CHAR;}
  };

#endif //DOXYGEN_SHOULD_SKIP_THIS
	
} // namespace Teuchos

#endif