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Re: [PATCH] libstdc++/8645

From: Paolo Carlini <pcarlini at unitus dot it>
To: Phil Edwards <phil at jaj dot com>
Cc: libstdc++ at gcc dot gnu dot org
Date: Fri, 22 Nov 2002 19:49:37 +0100
Subject: Re: [PATCH] libstdc++/8645
References: <3DDE3A1B.9040308@unitus.it> <20021122133353.A24908@disaster.jaj.com>

Phil Edwards wrote:

On Fri, Nov 22, 2002 at 03:07:23PM +0100, Paolo Carlini wrote:

* include/bits/stl_tree.h (_Rb_tree_rebalance_for_erase):
Don't check that __w->_M_left != 0 and __w->_M_right != 0
when they can't be otherwise.
Thanks.  As an aside, I wondered if those couldn't already be elided by
the compiler using

   http://gcc.gnu.org/news/null.html

but I don't know whether this optimization is still performed.

A *very* interesting aside, indeed!

Thanks for your review.

Ciao, Paolo.

References:
- [PATCH] libstdc++/8645
  - From: Paolo Carlini
- Re: [PATCH] libstdc++/8645
  - From: Phil Edwards

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