From: Christopher Jefferson <chris@bubblescope.net>
To: Ian Lance Taylor <iant@google.com>
Cc: "René Bürgel" <rbuergel@web.de>, gcc-help@gcc.gnu.org
Subject: Re: [C++0x unique_ptr] sorting a vector of unique_ptr fails
Date: Mon, 15 Dec 2008 20:22:00 -0000 [thread overview]
Message-ID: <17258D4C-5179-4435-81C0-8891B55A06A5@bubblescope.net> (raw)
In-Reply-To: <m3bpvdfdal.fsf@google.com>
On 15 Dec 2008, at 19:28, Ian Lance Taylor wrote:
> René Bürgel <rbuergel@web.de> writes:
>
>> Is the following code supposed to work in C++0x-Mode or am i just
>> doing something wrong?
>>
>> #include <memory>
>> #include <vector>
>> #include <algorithm>
>>
>> int main()
>> {
>> std::vector<std::unique_ptr<int> > v;
>> std::sort(v.begin(), v.end());
>> }
>
> I think it is supposed to work. The standard says that the value
> must be Swappable, MoveConstructible, and MoveAssignable. I think
> that std::unique_ptr meets those requirements.
>
> I think this is a bug in libstdc++-v3. Looking at the code, I think
> this means that __introsort_loop can't assume that it can pass values
> to std::__median.
It is a "bug" in that not all of libstdc++-v3 has been updated to C+
+0x. Sort is one such example.
Chris
next prev parent reply other threads:[~2008-12-15 20:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-13 17:35 René Bürgel
2008-12-15 19:30 ` Ian Lance Taylor
2008-12-15 20:22 ` Christopher Jefferson [this message]
2008-12-15 23:46 ` René Bürgel
2008-12-16 6:14 ` Ian Lance Taylor
2008-12-17 0:44 ` René Bürgel
2008-12-17 0:50 ` Diego Novillo
2008-12-17 1:06 ` Diego Novillo
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