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// $Id: Interval.hh 2641 2007-09-02 21:31:02Z flaterco $
// Interval: what you get if you subtract two timestamps.
/*
Copyright (C) 1998 David Flater.
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, either version 3 of the License, or
(at your option) any later version.
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/>.
*/
class NullableInterval;
// There is no overflow checking on Intervals.
class Interval {
public:
Interval (); // Initialize to 0 s.
Interval (interval_rep_t s);
Interval (const NullableInterval &interval); // Error if null.
// Takes meridian string of the form [-]HH:MM
Interval (const Dstr &meridian);
// Return value in seconds.
inline const interval_rep_t s() const {
return seconds;
}
void operator *= (unsigned a);
protected:
interval_rep_t seconds;
};
inline const Angle operator* (Interval a, Speed b) {
return Angle (Units::radians, a.s() * b.radiansPerSecond());
}
inline const Angle operator* (Speed b, Interval a) {
return Angle (Units::radians, a.s() * b.radiansPerSecond());
}
const Interval operator+ (Interval a, Interval b);
const Interval operator- (Interval a, Interval b);
const Interval operator* (Interval a, unsigned b);
const Interval operator* (Interval a, double b);
const Interval operator/ (Interval a, int b);
const double operator/ (Interval a, Interval b);
const Interval abs (Interval a);
const Interval operator- (Interval a);
const bool operator> (Interval a, Interval b);
const bool operator< (Interval a, Interval b);
const bool operator<= (Interval a, Interval b);
const bool operator>= (Interval a, Interval b);
const bool operator== (Interval a, Interval b);
const bool operator!= (Interval a, Interval b);
// Cleanup2006 Done
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