Re: [Gm2] SHIFT questions

[Iztok Kobal]

Well, the correct link pointing to XDS M2 packedsets would be: 
http://www.excelsior-usa.com/doc/isom204.html#321

Iztok

Gaius Mulley wrote:
> Hi,
>
> during the course of fixing some regression tests I came across
> the problem of what to do if the user attempts to SHIFT by more
> than set size bits.
>
> Ie:
>
>     SHIFT(bitset, MAX(BITSET)+1)   is a no-op   MAX(BITSET)=31
>                                    and shifting by 32 on a 32 bit
>                                    machine yields the same result.
>
> I cannot find how SHIFT should behave in the M2 ISO standard given
> these parameters.  Currently if SHIFTing x where x is>MAX(settype)+1
> will be the same as SHIFTing x MOD (MAX(settype)+1), for any settype.
> Hope this is correct..
>
> regards,
> Gaius
>
>
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