NULLs

[Hans-Dieter.Dreier@materna.de]

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>How about:
>
>class pointer <a>  :? ref <a> | null
>
That's OK with me. As you said above, it's no definitive syntax.

>It looks funny but you definitely won't be confusing it with inheritance.

It just occurred to me that this is simply an enumeration of classes (if we=
 assume that classes (definitions) are objects and types (usages) are value=
s), so it seems natural to use whatever syntax we choose for enumerations.


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Regards,

Hans-Dieter Dreier
(Hans-Dieter.Dreier@materna.de)=

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IDENTIFIKATIONSANGABEN:
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