From: Mehdi Saada <00120260a@gmail.com>
Subject: Re: troubles learning OOP: expected type "Parent.Some_Child", found type Parent'Class
Date: Mon, 12 Feb 2018 10:17:00 -0800 (PST)
Date: 2018-02-12T10:17:00-08:00 [thread overview]
Message-ID: <ff42cf51-b24b-4a31-b30b-033855e84576@googlegroups.com> (raw)
In-Reply-To: <p5sjqs$gv4$1@dont-email.me>
... Somehow, it doesn't surprise me anymore.
> Get_Elem take T_Token'Class
How could I do that, since it meant to RETURN a different type for each subclass !
> Token_Courant return T_Token_Operateur
I don't even understand. Token_Courant returns the current entry in the vector, entry whose sub-class I can't know beforehand.
> convert the result of Token_Courant to T_Token_Operateur.
Sorry, I don't see the difference with proposition 1
Now, I know why I prefered mutant types even before using them. But since this exercice is explicitely about OOP, I'll stick with the current design.
next prev parent reply other threads:[~2018-02-12 18:17 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-12 16:29 troubles learning OOP: expected type "Parent.Some_Child", found type Parent'Class Mehdi Saada
2018-02-12 17:44 ` Jeffrey R. Carter
2018-02-12 18:17 ` Mehdi Saada [this message]
2018-02-12 18:24 ` Dmitry A. Kazakov
2018-02-12 18:42 ` Simon Wright
2018-02-12 20:25 ` Jeffrey R. Carter
2018-02-12 21:18 ` Mehdi Saada
2018-02-12 22:40 ` Simon Wright
2018-02-12 23:12 ` Mehdi Saada
2018-02-13 8:00 ` Stephen Leake
2018-02-13 17:42 ` Jeffrey R. Carter
2018-02-13 17:56 ` Dmitry A. Kazakov
2018-02-12 21:19 ` Mehdi Saada
2018-02-12 18:40 ` Simon Wright
2018-02-12 21:39 ` Mehdi Saada
2018-02-12 21:43 ` Mehdi Saada
2018-02-12 22:22 ` Mehdi Saada
2018-02-13 17:46 ` Jeffrey R. Carter
2018-02-13 20:19 ` Mehdi Saada
2018-02-13 21:24 ` Bojan Bozovic
2018-02-13 23:03 ` Mehdi Saada
2018-02-13 23:03 ` Mehdi Saada
2018-02-14 7:00 ` Bojan Bozovic
2018-02-14 12:04 ` Mehdi Saada
2018-02-16 23:40 ` Mehdi Saada
2018-02-17 1:13 ` Mehdi Saada
2018-02-13 0:01 ` Mehdi Saada
2018-02-13 0:42 ` Mehdi Saada
2018-02-13 1:32 ` Mehdi Saada
2018-02-13 4:16 ` Bojan Bozovic
2018-02-13 11:28 ` Simon Wright
2018-02-13 12:03 ` Mehdi Saada
2018-02-13 13:25 ` Dmitry A. Kazakov
2018-02-19 18:10 ` Mehdi Saada
2018-02-19 18:16 ` Simon Clubley
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