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From: =?utf-8?Q?Yannick_Duch=C3=AAne_=28Hibou57?=
 =?utf-8?Q?=29?=
 <yannick_duchene@yahoo.fr>
Newsgroups: comp.lang.ada
Subject: Re: Generic access type convention and aliasing
Date: Tue, 07 May 2013 08:42:52 +0200
Organization: Ada @ Home
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Date: 2013-05-07T08:42:52+02:00
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Le Tue, 07 May 2013 08:02:58 +0200, Yannick Duch=C3=AAne (Hibou57)  =

<yannick_duchene@yahoo.fr> a =C3=A9crit:
> Implicit deference, even if it avoids direct use of the access member =
 =

> (syntactic sugar, not added safety, although a good idea)

If it was a function return a view (either read, read/write or write),  =

that would not be only syntactic sugar any=E2=80=91more.

I forget too much about C++, so I will request help from C++ gurus if  =

there are some here: I feel to remember something similar existed with  =

C++, where a function could return an object by reference instead of  =

returning a pointer to it. I am wrong or not? If I'm not wrong, I howeve=
r  =

don't remember if it was safe enough: did it allow to get a pointer from=
  =

that returned reference? (if so, that's not safe and so not worth).

If the implicit deference could specify a discriminant only visible in t=
he  =

private part, that would be OK (the public declaration would just have t=
o  =

tell what the type is).

-- =

=E2=80=9CSyntactic sugar causes cancer of the semi-colons.=E2=80=9D [1]
=E2=80=9CStructured Programming supports the law of the excluded muddle.=
=E2=80=9D [1]
[1]: Epigrams on Programming =E2=80=94 Alan J. =E2=80=94 P. Yale Univers=
ity