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NamedStream.h

/*****************************************************************************
 * Author:   Valient Gough <vgough@pobox.com>
 *
 *****************************************************************************
 * Copyright (c) 2001, Valient Gough
 *
 * This library is free software; you can distribute it and/or modify it under
 * the terms of the GNU Lesser General Public License (LGPL), 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 LGPL in the file COPYING for more
 * details.
 *
 */

#ifndef _NamedStream_incl_
#define _NamedStream_incl_

#include <rel/TypeStream.h>

namespace rel
{

    template<class KeyType, class ValueType>
        class NamedValue
        {
        public:
            NamedValue(KeyType &key, ValueType &value)
                : fKey(key)
                , fValue(value)
                {
                }

            KeyType &fKey;
            ValueType &fValue;
        };

} // namespace rel

template<class KeyType, class ValueType>
rel::TypeStream & operator << (rel::TypeStream &st, 
        const rel::NamedValue<KeyType,ValueType> &data)
{
    bool ok = st.writeBeginKey()
    st << data.fKey << data.fValue;
    ok &= st.writeEndKey();

    if(ok)
        return st;
    else
        throw OperationError("<<", "NamedValue");

}

#if 0
template<class KeyType, class ValueType>
rel::TypeStream & operator >> (rel::TypeStream &st, 
        const rel::NamedValue<KeyType,ValueType> &data)
{
    BeginKey key;
    st >> key;

    bool ok = st.writeBeginKey()
    st >> data.fKey >> data.fValue;
    ok &= st.writeEndKey();

    if(ok)
        return st;
    else
        throw OperationError(">>", "NamedValue");

}
#endif

#endif

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