Sacado_Fad_ExpressionFwd.hpp

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// @HEADER
// *****************************************************************************
//                           Sacado Package
//
// Copyright 2006 NTESS and the Sacado contributors.
// SPDX-License-Identifier: LGPL-2.1-or-later
//
// ***********************************************************************
//
// The forward-mode AD classes in Sacado are a derivative work of the
// expression template classes in the Fad package by Nicolas Di Cesare.
// The following banner is included in the original Fad source code:
//
// ************ DO NOT REMOVE THIS BANNER ****************
//
//  Nicolas Di Cesare <Nicolas.Dicesare@ann.jussieu.fr>
//  http://www.ann.jussieu.fr/~dicesare
//
//            CEMRACS 98 : C++ courses,
//         templates : new C++ techniques
//            for scientific computing
//
//********************************************************
//
//  A short implementation ( not all operators and
//  functions are overloaded ) of 1st order Automatic
//  Differentiation in forward mode (FAD) using
//  EXPRESSION TEMPLATES.
//
//********************************************************
// @HEADER

#ifndef SACADO_FAD_EXPRESSION_FWD_HPP
#define SACADO_FAD_EXPRESSION_FWD_HPP

namespace Sacado {

  namespace Fad {

    template <typename T> struct ExprSpec;

    template <typename ExprT,
              typename Spec = typename ExprSpec<ExprT>::type > class Expr;

  } // namespace Fad

} // namespace Sacado

#endif // SACADO_FAD_EXPRESSION_HPP