index.hpp

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/*
 * Copyright (c) 2014 Patrick P. Frey
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
#ifndef _STRUS_INDEX_HPP_INCLUDED
#define _STRUS_INDEX_HPP_INCLUDED

#ifdef _MSC_VER
#pragma warning(disable:4290)
#include <BaseTsd.h>
namespace strus {
        typedef INT32 Index;
        typedef INT64 GlobalCounter;
}//namespace
#else
#include <stdint.h>
namespace strus {
        typedef int32_t Index;
        typedef int64_t GlobalCounter;
}//namespace
#endif

namespace strus {

class IndexRange
{
public:
        Index start() const
        {
                return m_start;
        }
        Index end() const
        {
                return m_end;
        }
        int len() const
        {
                return m_end - m_start;
        }
        bool defined() const
        {
                return m_start < m_end;
        }

        IndexRange()
                :m_start(0),m_end(0){}
        IndexRange( Index start_, Index end_)
                :m_start(start_),m_end(end_){}
        IndexRange( const IndexRange& o)
                :m_start(o.m_start),m_end(o.m_end){}

private:
        Index m_start;
        Index m_end;
};

}//namespace
#endif