void Decimal::co_normalize(Decimal& x, Decimal& y)
{
if (x.m_places == y.m_places)
{
// do nothing
}
else if (x.m_places < y.m_places)
{
if (x.rescale(y.m_places) != 0)
{
JEWEL_THROW
( DecimalRangeException,
"Unsafe attempt to set fractional precision in course "
"of co-normalization attempt."
);
}
}
else
{
JEWEL_ASSERT (y.m_places < x.m_places);
if (y.rescale(x.m_places) != 0)
{
JEWEL_THROW
( DecimalRangeException,
"Unsafe attempt to set fractional precision in course "
"of co-normalization attempt."
);
}
}
return;
}
Decimal round(Decimal const& x, Decimal::places_type decimal_places)
{
Decimal ret = x;
if (ret.rescale(decimal_places) != 0)
{
JEWEL_THROW
( DecimalRangeException,
"Decimal number cannot safely be rounded to "
"this number of places."
);
}
return ret;
}