solveri.hpp

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// Copyright (C) 2013 Stephen Roderick <kiwi dot net at mac dot com>

// 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

#ifndef __SOLVERI_HPP
#define __SOLVERI_HPP

namespace KDL {

class SolverI
{
public:
    enum {
        E_DEGRADED         = +1,
        E_NOERROR          =  0,
        E_NO_CONVERGE      = -1,
        E_UNDEFINED        = -2
    };

        SolverI() :
                        error(E_NOERROR)
        {}

        virtual ~SolverI()
        {}

        virtual int getError() const { return error; }

        virtual const char* strError(const int error) const
        {
                if (E_NOERROR == error) return "No error";
                else if (E_NO_CONVERGE == error) return "Failed to converge";
                else if (E_UNDEFINED == error) return "Undefined value";
                else if (E_DEGRADED == error) return "Converged but degraded solution";
                else return "UNKNOWN ERROR";
        }

protected:
        int             error;
};

}       //      namespaces

#endif