fasdf gfaha / CircularBuffer

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CircularBuffer.h

Committer:
UCSBRobotics
Date:
2012-08-05
Revision:
0:787a5401f57e
Child:
1:b24970e4c038

File content as of revision 0:787a5401f57e:

#ifndef CIRCULARBUFFER_H
#define CIRCULARBUFFER_H



template <typename T, int S>
class CircularBuffer
{
public:
    CircularBuffer() { index = 0; }
    T value(int i);
    void push(T value);
    void revert(int amount);
    
protected:
    T data[S];
    int index;
};



template <typename T, int S>
inline T CircularBuffer<T, S>::value(int i)
{
    int realIndex = (index - i) % S;
    if (realIndex < 0) realIndex += S;
    return data[realIndex];
}



template <typename T, int S>
inline void CircularBuffer<T, S>::push(T value)
{
    index = ++index % S;
    data[index] = value;
}



template <typename T, int S>
inline void CircularBuffer<T, S>::revert(int amount)
{
    index = index >= amount ? index - amount : index - amount + S;
}

#endif // CIRCULARBUFFER_H