Re: [Gm2] constant overflow error with MAX(INTEGER8)

[SiTex Graphics]

Hi Gaius,

Thanks for the fix.  I sent another report a few days ago to your
private address, and I just realized I forgot to include GM2 in the
subject line.  Did you receive that message?

Thanks,
Scott


On Wed, Mar 17, 2010 at 12:10 PM, Gaius Mulley <address@hidden> wrote:
> SiTex Graphics <address@hidden> writes:
>
>> Hi Gaius,
>>
>> The following code generates a 'constant overflow error' during compilation:
>>
>> MODULE test8;
>>
>> FROM SYSTEM IMPORT INTEGER8;
>>
>> VAR
>>   i8 : INTEGER8;
>> BEGIN
>>   FOR i8:=MIN(INTEGER8) TO MAX(INTEGER8) DO
>>   END;
>> END test8.
>>
>> If MAX(INTEGER8) is changed to 127, the code compiles.
>
> Hi Scott,
>
> thanks for the bug report and test code - now fixed in the latest cvs:
>
>    * gm2/gm2-compiler/M2ALU.def:  CheckOrResetOverflow
>      (New procedure) replaces CheckOverflow.
>    * gm2/gm2-compiler/M2ALU.mod:  implement
>      CheckOrResetOverflow.
>    * gm2/gm2-compiler/M2GenGCC.mod:  replace CheckOverflow
>      with CheckOrResetOverflow.
>    * gm2/gm2-compiler/M2Quads.def:  export and declare
>      MustCheckOverflow (New procedure).
>    * gm2/gm2-compiler/M2Quads.mod:  implement
>      MustCheckOverflow.  Modify doBuildAssignment,
>      doBuildBinaryOp to take an extra parameter, overflow.
>      PutQuadO, GenQuadO (New procedures).
>    * gm2/gm2/gm2-libs/RTint.mod:  turn off debugging.
>    * gm2/gm2-libs-ch/sckt.c:  turn off debugging.
>    * above changes fix bug reported by Scott Iverson
>      <http://lists.gnu.org/archive/html/gm2/2010-03/msg00016.html>
>    * gm2/gm2-compiler/M2ALU.mod:  corrected import (RemoveOverflow).
>
> regards,
> Gaius
>