int compareNumbers(const BSONElement& lhs, const BSONElement& rhs) {
invariant(lhs.isNumber());
invariant(rhs.isNumber());
if (lhs.type() == NumberInt || lhs.type() == NumberLong) {
if (rhs.type() == NumberInt || rhs.type() == NumberLong) {
return COMPARE_HELPER(lhs.numberLong(), rhs.numberLong());
}
return compareLongToDouble(lhs.numberLong(), rhs.Double());
} else { // double
if (rhs.type() == NumberDouble) {
return COMPARE_HELPER(lhs.Double(), rhs.Double());
}
return -compareLongToDouble(rhs.numberLong(), lhs.Double());
}
}
SafeNum::SafeNum(const BSONElement& element) {
switch (element.type()) {
case NumberInt:
_type = NumberInt;
_value.int32Val = element.Int();
break;
case NumberLong:
_type = NumberLong;
_value.int64Val = element.Long();
break;
case NumberDouble:
_type = NumberDouble;
_value.doubleVal = element.Double();
break;
default:
_type = EOO;
}
}
