[fpc-pascal] Generic constants with generic type

Sven Barth pascaldragon at googlemail.com
Wed Apr 21 11:12:35 CEST 2021


Andrey Zubarev via fpc-pascal <fpc-pascal at lists.freepascal.org> schrieb am
Mi., 21. Apr. 2021, 09:23:

> Hi all!
> With the existing syntax of constants, it is good to pass array
> boundaries, but bad to initial parameter values. What do you think about
> such constructs:
>
> GTValue<GValueType; const GMin,GDefault,GMax:GValueType>=...
>

It is currently simply not possible to reference earlier type parameters
inside the parameter clause. This affects code like this as well: generic
TSomeGeneric<T; S: ISomeOtherGeneric<T>>
Once that is fixed your case will probably work as well as long as the type
is one for which untyped constants can be declared.

Regards,
Sven

>
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