89 lines
2.1 KiB
C++
89 lines
2.1 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2010 Danny Robson <danny@nerdcruft.net>
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*/
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#include "stats.hpp"
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#include <limits>
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#include <ostream>
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template <typename T>
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util::stats::accumulator<T>::accumulator () {
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reset ();
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}
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template <typename T>
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void
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util::stats::accumulator<T>::reset (void) {
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count = 0;
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min = std::numeric_limits<T>::max ();
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max = std::numeric_limits<T>::min ();
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sum = 0;
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}
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template <typename T>
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void
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util::stats::accumulator<T>::add (T val) {
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min = std::min (val, min);
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max = std::max (val, max);
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sum += val;
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++count;
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}
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template <typename T>
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void
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util::stats::accumulator<T>::add (const accumulator<T> &rhs) {
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min = std::min (rhs.min, min);
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max = std::max (rhs.max, max);
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sum += rhs.sum;
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count += rhs.count;
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}
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template <typename T>
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T
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util::stats::accumulator<T>::range (void) const
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{ return max - min; }
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template <typename T>
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T
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util::stats::accumulator<T>::mean (void) const
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{ return sum / count; }
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template struct util::stats::accumulator<uint64_t>;
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template struct util::stats::accumulator<double>;
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template struct util::stats::accumulator<float>;
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template <typename T>
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std::ostream&
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util::stats::operator<< (std::ostream &os, const accumulator<T> &rhs) {
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os << "(min: " << rhs.min << ", max: " << rhs.max << ")";
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return os;
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}
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template std::ostream& util::stats::operator<< (std::ostream&, const accumulator<uint64_t> &);
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template std::ostream& util::stats::operator<< (std::ostream&, const accumulator<double> &);
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template std::ostream& util::stats::operator<< (std::ostream&, const accumulator<float > &);
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