Taiko-Nijiiro-Analog-IOBoard/sanro/cache.h

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/***************************************************************
* *
* Taiko Sanro - Arduino *
* Cache data structure *
* *
* Chris *
* wisaly@gmail.com *
* *
***************************************************************/
#ifndef CACHE_H
#define CACHE_H
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template <class T, int L>
class Cache {
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public:
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Cache ();
void put (T value);
T get (int offset = 0) const;
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private:
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T data_ [L];
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int current_ = 0;
};
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template <class T, int L>
Cache <T, L>::Cache () {
for (int i = 0; i < L; i++) {
data_ [i] = 0;
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}
}
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template <class T, int L>
void Cache <T, L>::put (T value) {
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current_ = (current_ + 1) % L;
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data_ [current_] = value;
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}
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template <class T, int L>
T Cache <T, L>::get (int offset) const {
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int index = (current_ + offset) % L;
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return data_ [index];
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}
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#endif // CACHE_H