Re: Order of destruction of static members and static objects

From:
James Kanze <james.kanze@gmail.com>
Newsgroups:
comp.lang.c++
Date:
Mon, 7 Dec 2009 01:52:46 -0800 (PST)
Message-ID:
<717bd344-066d-4d9d-9bc5-05e91c43d49d@r1g2000vbp.googlegroups.com>
On Nov 30, 3:23 pm, Juha Nieminen <nos...@thanks.invalid> wrote:

James Kanze wrote:

On Nov 28, 3:26 pm, Juha Nieminen <nos...@thanks.invalid> wrote:

Victor Bazarov wrote:

Apparently you need 'A::container' to be a singleton. See
any of the existing implementations of that pattern. Most
simple ones actually create the singleton on demand (in
freestore) and never destroy it.


You mean that if you want to make sure that a static member
is never accessed after it has been destroyed, you have to
allocate it dynamically and purposefully leak it?


That's the usual singleton idiom.


I would have never thought at a programming idiom requires
deliberate introduction of a memory leak into your program.


Where is the memory leak? You never allocate more than one, so
there can't be a memory leak.

Is it really the only way?


If you want something available until all user defined
destructors have terminated, you can't invoke a user defined
destructor on it: either it has a trivial destructor, or you
don't destruct it. There are no other choices.

--
James Kanze

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