[Oberon] Type compatibility in Oberon

[Joerg]

wrong answer😊
I can not be left to the compiler to decide whether the semantic of a decimal literal and a hex literal differ or not.

Jörg

> Am 01.05.2020 um 15:34 schrieb Chris Burrows <chris at cfbsoftware.com>:
> 
> Check with your supplier's compiler documentation to see what range of values are allowed. If it is not specified contact their technical support.
> 
>> -----Original Message-----
>> From: Joerg [mailto:joerg.straube at iaeth.ch]
>> Sent: Friday, 1 May 2020 10:39 PM
>> To: chris at cfbsoftware.com; ETH Oberon and related systems
>> Subject: Re: [Oberon] Type compatibility in Oberon
>> 
>> Is using 90909090H an undefined feature?
>> What value does it represent?
>> 
>> br
>> J rg
>> 
>>>> Am 01.05.2020 um 14:13 schrieb Chris Burrows <chris at cfbsoftware.com>:
>>> 
>>> ?Not exactly. This amended statement is more accurate:
>>> 
>>> "It is not guaranteed that a program THAT USES UNDEFINED FEATURES
>>> compiled with two different implementations of the same report behave
>>> in the same way."
>>> 
>>> I find that neither surprising nor anything to be concerned about. I
>>> sincerely hope that an Oberon programmer would not assume otherwise.
>>> 
>>> Regards,
>>> Chris Burrows
>>> CFB Software
>>> https://www.astrobe.com
>>> 
>>>> -----Original Message-----
>>>> From: Oberon [mailto:oberon-bounces at lists.inf.ethz.ch] On Behalf Of
>>>> Andreas Pirklbauer
>>>> Sent: Friday, 1 May 2020 6:36 PM
>>>> To: Oberon List
>>>> Subject: [Oberon] Type compatibility in Oberon
>>>> 
>>>>> Oberon as it is defined in the report leaves some parts needed for
>>>> low level programming to the implementation.
>>>> 
>>>> At the heart the problem appears to be two-fold: a) the language
>>>> leaves certain things undefined, and b) in order to truly implement
>>>> an entire system like the Oberon system, one has to cheat (at least a
>>>> little). For example, today it is not guaranteed that a program
>>>> compiled with two different implementations of the same report behave
>> in the same way.
>>>> 
>>>> 
>>>> 
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>>>> Oberon at lists.inf.ethz.ch mailing list for ETH Oberon and related
>>>> systems https://lists.inf.ethz.ch/mailman/listinfo/oberon
>>> 
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> 
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