libcruft-util/stats.hpp

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/*
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* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
* Copyright 2010 Danny Robson <danny@nerdcruft.net>
*/
#pragma once
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#include <iosfwd>
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namespace cruft {
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namespace stats {
// Undefined until at least one value has been added.
template <typename T>
struct accumulator {
accumulator ();
void reset (void);
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void add (T);
void add (const accumulator<T> &);
size_t count;
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T min;
T max;
T sum;
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T range (void) const;
T mean (void) const;
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};
template <typename T>
std::ostream& operator<< (std::ostream&, const accumulator<T>&);
}
}