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[Bug libstdc++/42832] Revisit std::function for aliasing issues and efficiency
- From: "jason at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 20 May 2010 15:40:12 -0000
- Subject: [Bug libstdc++/42832] Revisit std::function for aliasing issues and efficiency
- References: <bug-42832-16141@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #19 from jason at gcc dot gnu dot org 2010-05-20 15:40 -------
Aha. That sounds good to me; I don't expect your testcase to work, because it
doesn't involve a char buffer. The copy does need to use the object
representation, but I think the new-expression should be undefined (though the
standard needs fixing to make it so--this is core issue 1027).
So, can we revert the function::swap change for 4.6, then?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42832