From: John Torjo (john.lists_at_[hidden])
Date: 2004-09-26 09:55:29
Alexander Terekhov wrote:
> John Torjo wrote:
> [...]
>
>>// here - you need InterlockedCompareExchange
>>// to realize that refcount is 0 (zero)
>>shared_ptr<test> p3 = weak.lock();
>
>
> lock() calls InterlockedCompareExchange (too bad it's fully fenced)
> if refcount isn't 0. Again, it can't see "false" zero.
>
of course - with the change I suggested ;)
I wanted to say that the original implementation
(http://www.pdimov.com/cpp/shared_count_x86_exp2.hpp) has a bug.
Take a look at it please.
Best,
John
--
John Torjo
-- john_at_[hidden]
Contributing editor, C/C++ Users Journal
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