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// $Id: Year.cc 2641 2007-09-02 21:31:02Z flaterco $
/*
Copyright (C) 1997 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/>.
*/
#include "common.hh"
Year::Year (uint16_t year):
_year(year) {
// If they tried to specify a negative year it would show up as a
// big positive number, so don't confuse them with details.
if (year < 1 || year > 4000)
Global::barf (Error::YEAR_OUT_OF_RANGE);
}
const uint16_t Year::val() const {
return _year;
}
const Year operator + (Year y, int n) {
return Year (y.val() + n);
}
const Year operator - (Year y, int n) {
return Year (y.val() - n);
}
const bool operator < (Year y1, Year y2) {
return (y1.val() < y2.val());
}
const bool operator > (Year y1, Year y2) {
return (y1.val() > y2.val());
}
const bool operator >= (Year y1, Year y2) {
return (y1.val() >= y2.val());
}
const bool operator <= (Year y1, Year y2) {
return (y1.val() <= y2.val());
}
const bool operator == (Year y1, Year y2) {
return (y1.val() == y2.val());
}
const bool operator != (Year y1, Year y2) {
return (y1.val() != y2.val());
}
// Prefix increment
const Year Year::operator++ () {
if (++_year > 4000)
Global::barf (Error::YEAR_OUT_OF_RANGE);
return *this;
}
// Cleanup2006 Done
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