44 lines
567 B
C++
44 lines
567 B
C++
#ifndef AVERAGE_H
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#define AVERAGE_H
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#include "../../Assertions.h"
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namespace Stats {
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template <typename Scalar> class Average {
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private:
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int cnt;
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Scalar sum;
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public:
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/** ctor */
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Average() : cnt(0), sum(0) {
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;
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}
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/** contains a valid average? */
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bool isValid() const {
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return cnt > 0;
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}
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/** add a new value */
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void add(const Scalar val) {
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sum += val;
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++cnt;
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}
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/** get the current value */
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Scalar get() const {
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Assert::isNot0(cnt, "add() values first!");
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return sum / (Scalar)cnt;
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}
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};
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}
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#endif // AVERAGE_H
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