From: stt@henning.camb.inmet.com (Tucker Taft)
Subject: Re: One-time object
Date: Tue, 17 Jan 1995 20:09:29 GMT
Date: 1995-01-17T20:09:29+00:00 [thread overview]
Message-ID: <D2KFzt.IH9@inmet.camb.inmet.com> (raw)
In-Reply-To: "bOc9v2.0.Fr5.VGz5l"@autan
In article <"bOc9v2.0.Fr5.VGz5l"@autan>,
Samuel Tardieu <sam@email.enst.fr> wrote:
>I've got two questions for you adaers, which may be in fact one single
>question:
>
> 1) In the body of the package "Foo", I create a task "Bar":
>
> task Bar;
> task body Bar is
> begin
> <Do something>
> end Bar;
>
> If my program is made of a "Main" procedure, which requires two
> packages "Pack1" and "Pack2", which both require the
> "Foo" package, what will happen ? Will I have one or two
> occurences of the "Bar" task ?
One. A "with" clause is a compile-time request for visibility
on some other compilation unit. There is no corresponding
action at run-time associated with each "with" clause.
If a compilation unit is mentioned in one *or more* with clauses,
then *one* copy of it will be included in the executable built
by the linker.
> 2) Same question with a protected object: if I declare an occurence
> of a protected object in a package specification, will this
> object be unique even if the package is with-ed several times or
> will I have one occurence by with ?
>
>Thanks in advance.
>
> Sam
>
>PS: if the answer is "You'll have as many occurences as with", could
> you please tell me how I can do to obtain only one occurence ?
The number of with clauses is irrelevant, so long as you reference
the unit at least once from somewhere.
-Tucker Taft stt@inmet.com
Intermetrics, Inc.
next parent reply other threads:[~1995-01-17 20:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <"bOc9v2.0.Fr5.VGz5l"@autan>
1995-01-17 20:09 ` Tucker Taft [this message]
[not found] <19950116.045549.910@vnet.ibm.com>
1995-01-17 17:46 ` One-time object James A. Krzyzanowski
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