Ifpack2_Details_registerLinearSolverFactory.hpp

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// @HEADER
// *****************************************************************************
//       Ifpack2: Templated Object-Oriented Algebraic Preconditioner Package
//
// Copyright 2009 NTESS and the Ifpack2 contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

 
#ifndef IFPACK2_DETAILS_REGISTERLINEARSOLVERFACTORY_HPP
#define IFPACK2_DETAILS_REGISTERLINEARSOLVERFACTORY_HPP
 
#include "Ifpack2_ConfigDefs.hpp"
 
namespace Ifpack2 {
namespace Details {

void registerLinearSolverFactory();
 
}  // namespace Details
}  // namespace Ifpack2
 
namespace {  // (anonymous)
 
// \class RegisterLinearSolverFactory
// \brief Register Ifpack2's solver factory/ies with the central registry.
//
// \warning NOT FOR USERS.  ONLY FOR USE IN THIS FILE.
//
// Invoke this class' constructor to register Ifpack2's solver
// factory/ies with the central registry, for all template parameter
// combinations that Ifpack2 enabled.  You need not keep the instance
// of the class around; the constructor has a side effect if it
// returns.  (This is the C++ way of doing
// <tt>__attribute__((constructor))</tt>, without actually requiring
// the syntax extension.)
class RegisterLinearSolverFactory {
 public:
  RegisterLinearSolverFactory() {
    Ifpack2::Details::registerLinearSolverFactory();
  }
};
 
// Creating an instance of RegisterLinearSolverFactory invokes its
// constructor, which has the side effect of calling
// Ifpack2::Details::registerLinearSolverFactory().
RegisterLinearSolverFactory registerIt;
 
}  // namespace
 
#endif  // IFPACK2_DETAILS_REGISTERLINEARSOLVERFACTORY_HPP