[patch] Make std::tr1::shared_ptr thread-safe.

[Ulrich Drepper]

Jonathan Wakely wrote:

> This is what I have in my working copy (where I've resurrected
> compare_and_swap) but I make no claims that it's correct:

It's equivalent to the code I posted.  Stick some conditionals around it
to use the operation only when available and use that change, not your
original patch.  There is no reason to create such horrible code which
also increases the object size.

--
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖
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