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Subject: Re: Question on variant/discriminated records
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From: DrPi <314@drpi.fr>
Date: Thu, 31 Dec 2020 14:29:27 +0100
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Le 31/12/2020 à 13:46, Gautier write-only address a écrit :
> On Thursday, December 31, 2020 at 1:24:25 PM UTC+1, reinert wrote:
>> Here must be a hole in my understanding. I thought that the discriminant must be known
>> before V.Y := 1.0; and hence there should be no confusion?
> 
> Imagine you have a function Evaluate (r : rec1_Type) return Float.
> Except in trivial cases like
>    if r.option1 = b then result := result + r.y; end if;
> the compiler cannot guess the value of the discriminant.
> 
Isn't the discriminant stored in the record ?