libcruft-util/stats.hpp

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/*
* This file is part of libgim.
*
* libgim is free software: you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later
* version.
*
* libgim is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with libgim. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2010 Danny Robson <danny@nerdcruft.net>
*/
#ifndef __UTIL_STATS_HPP
#define __UTIL_STATS_HPP
#include <iostream>
namespace util {
namespace stats {
// Undefined until at least one value has been added.
template <typename T>
struct accumulator {
accumulator ();
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>&);
}
}
#endif