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timer.h
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// This program 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, version 3 of the License.
//
// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
//
// Copyright 2016 Vegard Antun
//
/*
This file contain a complete timer class, in addition to a few timer functions.
*/
#ifndef FASTWHT_TIMER_H_
#define FASTWHT_TIMER_H_
#include <cstdint>
#include <cstring>
#include <cmath>
#include <algorithm>
#include <iostream>
#include <chrono>
#include <random>
#include <vector>
#include <tuple>
#include <iomanip>
/*
This class tries to simplifies the time measurements of the program by
implementing start, pause and stop functions.
*/
class Timer {
std::chrono::time_point<std::chrono::high_resolution_clock> start_time, end_time;
std::chrono::duration<double> elapsed_time;
char * name;
bool is_active;
protected:
public:
Timer() {
name = new char[100];
name[0] = '\0';
is_active = false;
}
~Timer() {
delete [] name;
}
void set_name(const char * new_name);
void start();
void pause();
void stop();
};
////////////////////////////////////////////////////////////////////////////////
std::tuple<double, double, double, double> statistics(const std::vector<double> &val);
void timeit( const char * name, const int runs, const unsigned long N,
void (*transform)(double*, const unsigned long));
#endif