* Package Hierarchy and Private functions
@ 2009-03-18 12:22 RasikaSrinivasan
2009-03-18 12:42 ` Maciej Sobczak
2009-03-18 14:19 ` Robert A Duff
0 siblings, 2 replies; 4+ messages in thread
From: RasikaSrinivasan @ 2009-03-18 12:22 UTC (permalink / raw)
Friends
Supposing we have 2 packages like :
package P is
type Pvt_T is private ;
private
type Pvt_T is ... ;
procedure Pvt_Proc(p : in out Pvt_T) ;
end P ;
---------------------
package P.C is
....
end P.C ;
------------------
Is there a way for P.C to access Pvt_Proc (instead of making it
public). I guess this may be analogous to protected in C++?
Does P.C has a special relationship to P?
any pointers/advice appreciated. thanks, srini
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Package Hierarchy and Private functions
2009-03-18 12:22 Package Hierarchy and Private functions RasikaSrinivasan
@ 2009-03-18 12:42 ` Maciej Sobczak
2009-03-18 12:56 ` Srini -
2009-03-18 14:19 ` Robert A Duff
1 sibling, 1 reply; 4+ messages in thread
From: Maciej Sobczak @ 2009-03-18 12:42 UTC (permalink / raw)
On 18 Mar, 13:22, "RasikaSriniva...@gmail.com"
<RasikaSriniva...@gmail.com> wrote:
> Supposing we have 2 packages like :
>
> package P is
> type Pvt_T is private ;
> private
> type Pvt_T is ... ;
> procedure Pvt_Proc(p : in out Pvt_T) ;
> end P ;
>
> ---------------------
>
> package P.C is
> ....
> end P.C ;
>
> ------------------
>
> Is there a way for P.C to access Pvt_Proc
Yes. Just do it.
> I guess this may be analogous to protected in C++?
Ada's private *is* analogous to protected in C++.
> Does P.C has a special relationship to P?
Yes, it can see its private (which means protected) parts.
--
Maciej Sobczak * www.msobczak.com * www.inspirel.com
Database Access Library for Ada: www.inspirel.com/soci-ada
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Package Hierarchy and Private functions
2009-03-18 12:42 ` Maciej Sobczak
@ 2009-03-18 12:56 ` Srini -
0 siblings, 0 replies; 4+ messages in thread
From: Srini - @ 2009-03-18 12:56 UTC (permalink / raw)
Thanks. The doubt came due to an error message that I misunderstood.
srini
On Mar 18, 8:42 am, Maciej Sobczak <see.my.homep...@gmail.com> wrote:
> On 18 Mar, 13:22, "RasikaSriniva...@gmail.com"
>
>
>
> <RasikaSriniva...@gmail.com> wrote:
> > Supposing we have 2 packages like :
>
> > package P is
> > type Pvt_T is private ;
> > private
> > type Pvt_T is ... ;
> > procedure Pvt_Proc(p : in out Pvt_T) ;
> > end P ;
>
> > ---------------------
>
> > package P.C is
> > ....
> > end P.C ;
>
> > ------------------
>
> > Is there a way for P.C to access Pvt_Proc
>
> Yes. Just do it.
>
> > I guess this may be analogous to protected in C++?
>
> Ada's private *is* analogous to protected in C++.
>
> > Does P.C has a special relationship to P?
>
> Yes, it can see its private (which means protected) parts.
>
> --
> Maciej Sobczak *www.msobczak.com*www.inspirel.com
>
> Database Access Library for Ada:www.inspirel.com/soci-ada
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Package Hierarchy and Private functions
2009-03-18 12:22 Package Hierarchy and Private functions RasikaSrinivasan
2009-03-18 12:42 ` Maciej Sobczak
@ 2009-03-18 14:19 ` Robert A Duff
1 sibling, 0 replies; 4+ messages in thread
From: Robert A Duff @ 2009-03-18 14:19 UTC (permalink / raw)
"RasikaSrinivasan@gmail.com" <RasikaSrinivasan@gmail.com> writes:
> Supposing we have 2 packages like :
>
> package P is
> type Pvt_T is private ;
> private
> type Pvt_T is ... ;
> procedure Pvt_Proc(p : in out Pvt_T) ;
> end P ;
>
> ---------------------
>
> package P.C is
> ....
> end P.C ;
>
> ------------------
>
> Is there a way for P.C to access Pvt_Proc (instead of making it
> public).
The contents of P's private part are visible in the private part and the
body of P.C. It's similar to putting a package C nested inside P,
but not exactly the same.
If you make P.C into a private child package:
private package P.C is
...
end P.C ;
then the contents of P's private part are visible in ALL of P.C,
including its visible part.
> I guess this may be analogous to protected in C++?
Yeah, sort of.
- Bob
^ permalink raw reply [flat|nested] 4+ messages in thread
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2009-03-18 12:42 ` Maciej Sobczak
2009-03-18 12:56 ` Srini -
2009-03-18 14:19 ` Robert A Duff
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