/usr/include/trilinos/Sacado_dummy_arg.hpp is in libtrilinos-sacado-dev 12.12.1-5.
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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.
//
// 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
// USA
// Questions? Contact David M. Gay (dmgay@sandia.gov) or Eric T. Phipps
// (etphipp@sandia.gov).
//
// ***********************************************************************
// @HEADER
#ifndef SACADO_DUMMY_ARG_HPP
#define SACADO_DUMMY_ARG_HPP
namespace Sacado {
//! A dummy argument that can be converted to any scalar type
template <class T> struct dummy_arg {
operator T() const { return T(0.0); }
};
//! A meta-function that defines U as its type
template <class T, class U> struct dummy {
typedef U type;
};
//! Specialization to provide a dummy argument when types are the same
template <class T> struct dummy<T,T> {
typedef dummy_arg<T> type;
};
} // namespace Sacado
#endif // SACADO_DUMMY_ARG_HPP
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