root/modules/superres/src/ring_buffer.hpp

INCLUDED FROM

DEFINITIONS

1. at
2. at

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#ifndef __RING_BUFFER_HPP__
#define __RING_BUFFER_HPP__

#include "precomp.hpp"

namespace cv
{
    namespace superres
    {
        namespace detail
        {
            template <typename T, class A>
            inline const T& at(int index, const std::vector<T, A>& items)
            {
                const int len = static_cast<int>(items.size());
                if (index < 0)
                    index -= ((index - len + 1) / len) * len;
                if (index >= len)
                    index %= len;
                return items[index];
            }

            template <typename T, class A>
            inline T& at(int index, std::vector<T, A>& items)
            {
                const int len = static_cast<int>(items.size());
                if (index < 0)
                    index -= ((index - len + 1) / len) * len;
                if (index >= len)
                    index %= len;
                return items[index];
            }
        }
    }
}

#endif // __RING_BUFFER_HPP__