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[PATCH] libstdc++/77334 move assign RB trees of non-copyable types

From: Jonathan Wakely <jwakely at redhat dot com>
To: libstdc++ at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
Date: Tue, 23 Aug 2016 14:17:01 +0100
Subject: [PATCH] libstdc++/77334 move assign RB trees of non-copyable types
Authentication-results: sourceware.org; auth=none

This fixes move assignment of RB trees to tag dispatch so the branch
that copies nodes doesn't need to be well-formed.

	PR libstdc++/77334
	* include/bits/stl_tree.h (_Rb_tree::_M_move_assign): New functions.
	(_Rb_tree::operator=(_Rb_tree&&)): Dispatch to _M_move_assign.
	* testsuite/23_containers/map/77334.cc: New test.

Tested powerpc64le-linux, committed to trunk.

Backports to 5 and 6 to follow.

Attachment: patch.txt
Description: Text document

Follow-Ups:
- Re: [PATCH] libstdc++/77334 move assign RB trees of non-copyable types
  - From: François Dumont

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