repeatextender.h

// Description: Repeating index extender
// Documentation: indexextenders.txt

#ifndef PASTELSYS_REPEATEXTENDER_H
#define PASTELSYS_REPEATEXTENDER_H

#include "pastel/sys/extender/indexextender.h"

namespace Pastel
{

    class RepeatExtender
        : public IndexExtender
    {
    public:
        virtual ~RepeatExtender()
        {
        }

        virtual integer operator()(
            integer index, integer extent) const
        {
            return mod(index, extent);
        }
    };

    using RepeatExtenderPtr = CountedPtr<RepeatExtender>;
    using ConstRepeatExtenderPtr = CountedPtr<const RepeatExtender>;

    inline RepeatExtenderPtr repeatExtender()
    {
        return RepeatExtenderPtr(new RepeatExtender);
    }

}

#endif