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// $Id: Units.cc 2641 2007-09-02 21:31:02Z flaterco $
/*
Units
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/>.
*/
#include "common.hh"
static const unsigned numUnits = 4;
static constString longNames[numUnits] = {"feet",
"meters",
"knots",
"knots^2"};
static constString shortNames[numUnits] = {"ft",
"m",
"kt",
"kt^2"};
constString Units::shortName (PredictionUnits u) {
assert (u >= 0 && u < (int)numUnits);
return shortNames[u];
}
constString Units::longName (PredictionUnits u) {
assert (u >= 0 && u < (int)numUnits);
return longNames[u];
}
const Units::PredictionUnits Units::parse (const Dstr &unitsName) {
for (unsigned i=0; i<numUnits; ++i)
if (unitsName == longNames[i] || unitsName == shortNames[i])
return (PredictionUnits)i;
Dstr details ("The offending units were ");
details += unitsName;
details += '.';
Global::barf (Error::UNRECOGNIZED_UNITS, details);
return meters; // Unreachable statement to silence compiler warning
}
const bool Units::isCurrent (PredictionUnits u) {
assert (u != zulu);
return (u == knots || u == knotsSquared);
}
const bool Units::isHydraulicCurrent (PredictionUnits u) {
assert (u != zulu);
return (u == knotsSquared);
}
const Units::PredictionUnits Units::flatten (PredictionUnits u) {
assert (u != zulu);
if (u == knotsSquared)
return knots;
return u;
}
// Cleanup2006 Done
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