Method div

src/common/Int128.cpp:208–242

}

Int128 Int128::div(Int128 op2, int scale) const
{
	if (compare(MIN_Int128) == 0 && op2.compare(minus1) == 0)
		Arg::Gds(isc_exception_integer_overflow).raise();

	if (op2.v == 0)
		zerodivide();

	static const CInt128 MIN_BY10(MIN_Int128 / 10);
	static const CInt128 MAX_BY10(MAX_Int128 / 10);

	// Scale op1 by as many of the needed powers of 10 as possible without an overflow.
	Int128 op1(*this);
	int sign1 = op1.sign();
	while ((scale < 0) && (sign1 >= 0 ? op1.compare(MAX_BY10) <= 0 : op1.compare(MIN_BY10) >= 0))
	{
		op1.v *= 10;
		++scale;
	}

	// Scale op2 shifting it to the right as long as only zeroes are thrown away.
	while (scale < 0)
	{
		int rem = int(v % 10);
		if (rem)
			break;
		op2.v /= 10;
		++scale;
	}

	op1.v /= op2.v;

	op1.setScale(scale);
	return op1;
}

void Int128::zerodivide()
{