[clean-list] Re: Class is not working

[Ronny Wichers Schreur]

Willer wrote (to the Clean Discussion List):

> I've installed the Clean 2.0 version and I tried to compile a program
> that uses Clas_07 library but it didn't work. It returns six messages:
> ArrayElem undefined. I saw that in the new _SystemArray.dcl, the class
> ArrayElem is missing. What should I do? Maybe should I change the types
> in Clas_07? What types should I put it instead of ArrayElem?

See p.11 "Differences in the Type System" and p.52 section 4.4 "Arrays" of the
Clean 2.0 reference manual. 

For example, change
    instance + {# a} | + , ArrayElem a   // 1.3
to
    instance + {# a} | + a & Array {#} a // 2.0



Cheers,

Ronny Wichers Schreur