Re: array of strings in a function

[Jeffrey Carter <spam@spam.com>]

Robert I. Eachus wrote:

> Jeffrey Carter wrote:
> 
>  >> type Parameter_List is String;
>  >
>  > This is not Ada. And making it "new String" won't work, either, since
>  >  Parameter_List is definite. So this proposal needs some work.
>  > Perhaps "new Unbounded_String" is better.
> 
> Oops!  SUBtype Parameter_List is String;
> 
> Or you can do "type Parameter_List is new String;"  but that requires
> writing a lot of type conversions.

No. This is the full type for

type Parameter_List is private;

so it can't be a subtype. Since a client may write

P : Parameter_List;

(Parameter_List is a definite type), "new String" won't work either. 
Perhaps you want

type Parameter_List (<>) is private;

in which case "new String" is legal, but does require conversions.

-- 
Jeff Carter
"We use a large, vibrating egg."
Annie Hall
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