void TemperatureUnit_Impl::operator/=(const Unit& rUnit) {
Unit_Impl::operator/=(rUnit);
OptionalTemperatureUnit rTUnit = rUnit.optionalCast<TemperatureUnit>();
if (!isAbsolute() && rTUnit && rTUnit->isAbsolute()) {
setAsAbsolute();
}
}
bool Quantity::isAbsolute() const {
OptionalTemperatureUnit tu = m_units.optionalCast<TemperatureUnit>();
if(!tu) {
LOG_AND_THROW("Could not evaluate Quantity::isAbsolute for quantity " << *this
<< " because it is in system " << system().valueName() << ", not Celsius or Fahrenheit.");
}
return tu->isAbsolute();
}
