Sacado_mpl_if.hpp

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// $Id$ 
// $Source$ 
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// 
//                           Sacado Package
//                 Copyright (2006) Sandia Corporation
// 
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
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// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
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#ifndef SACADO_MPL_IF_HPP
#define SACADO_MPL_IF_HPP

namespace Sacado {

  namespace mpl {

    template <bool cond, class T1, class T2> struct mpl_if_c {};
    template <class T1, class T2> struct mpl_if_c<true,T1,T2> : T1 {};
    template <class T1, class T2> struct mpl_if_c<false,T1,T2> : T2 {};

    template <class C, class T1, class T2> struct mpl_if : 
      mpl_if_c<C::value,T1,T2> {};

  }

}

#endif // SACADO_MPL_IF_HPP