Re: [Boost-users] fast_pool_allocator question

Subject: Re: [Boost-users] fast_pool_allocator question
From: Michael Fawcett (michael.fawcett_at_[hidden])
Date: 2008-10-07 12:20:47

On Tue, Oct 7, 2008 at 12:58 AM, Ta-Cheng Lin <tclin1998_at_[hidden]> wrote:
> Hi:
>
> I try fast_pool_allocator and it does not release memory.  See the following
> program
> Any ideas?

<snip code>

Well, this issue has come up before.  I can tell you the reason, but I
can't remember the solution.

The reason is that the singleton instance you are calling
release_memory() on is not the singleton the list is using to allocate
nodes.  Remember that std::list<int> will rebind the allocator to
allocate SomeNodeStruct<int> instead of plain ints.  As far as I know,
there is not a portable way to get the type of "SomeNodeStruct".

HTH,

--Michael Fawcett