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[Bug libstdc++/19495] basic_string::_M_rep() can produce an unnaturally aligned pointer to _Rep
- From: "pcarlini at suse dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 19 Jan 2005 09:09:32 -0000
- Subject: [Bug libstdc++/19495] basic_string::_M_rep() can produce an unnaturally aligned pointer to _Rep
- References: <20050118051448.19495.bje@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pcarlini at suse dot de 2005-01-19 09:09 -------
> Does this behaviour seem a little bit unusual to you? You said: "You
> cannot create a basic_string<char> object in memory aligned one".
> That is rather counter-intuitive to a user of libstdc++ who has no
> understanding of the implementation details of basic_string.
I don't think so. Memory provided by new, f.i., is never returned aligned
one. Quite to the contrary, *missing* a knowledge of the internal impl
details, you are supposed to pass to the string object an allocator
returning memory maximally aligned (like the default one does!)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19495