Function evlQuantize

src/jrd/SysFunction.cpp:5295–5331

dsc* evlQuantize(thread_db* tdbb, const SysFunction* function, const NestValueArray& args,
	impure_value* impure)
{
	fb_assert(args.getCount() == 2);

	Request* request = tdbb->getRequest();

	const dsc* value[2];
	value[0] = EVL_expr(tdbb, request, args[0]);
	if (request->req_flags & req_null)	// return NULL if value is NULL
		return NULL;

	value[1] = EVL_expr(tdbb, request, args[1]);
	if (request->req_flags & req_null)	// return NULL if value is NULL
		return NULL;

	DecimalStatus decSt = tdbb->getAttachment()->att_dec_status;

	if (value[0]->dsc_dtype == dtype_dec64)
	{
		Decimal64 v1 = MOV_get_dec64(tdbb, value[0]);
		Decimal64 v2 = MOV_get_dec64(tdbb, value[1]);

		impure->vlu_misc.vlu_dec64 = v1.quantize(decSt, v2);
		impure->vlu_desc.makeDecimal64(&impure->vlu_misc.vlu_dec64);
	}
	else
	{
		Decimal128 v1 = MOV_get_dec128(tdbb, value[0]);
		Decimal128 v2 = MOV_get_dec128(tdbb, value[1]);

		impure->vlu_misc.vlu_dec128 = v1.quantize(decSt, v2);
		impure->vlu_desc.makeDecimal128(&impure->vlu_misc.vlu_dec128);
	}

	return &impure->vlu_desc;
}


dsc* evlCompare(thread_db* tdbb, const SysFunction* function, const NestValueArray& args,