Function makeMod

src/jrd/SysFunction.cpp:1648–1679

void makeMod(DataTypeUtilBase*,	 const SysFunction* function, dsc* result,
	int argsCount, const dsc** args)
{
	fb_assert(argsCount == function->minArgCount);

	const dsc* value1 = args[0];
	const dsc* value2 = args[1];

	if (value1->isNull() || value2->isNull())
	{
		result->makeLong(0);
		result->setNull();
		return;
	}

	switch (value1->dsc_dtype)
	{
		case dtype_short:
		case dtype_long:
		case dtype_int64:
		case dtype_int128:
			*result = *value1;
			result->dsc_scale = 0;
			break;

		default:
			result->makeInt64(0);
			break;
	}

	result->setNullable(value1->isNullable() || value2->isNullable());
}


void makeOverlay(DataTypeUtilBase* dataTypeUtil, const SysFunction* function, dsc* result,