Re: [C++0x unique_ptr] sorting a vector of unique_ptr fails

[René Bürgel <rbuergel at web dot de>]

Christopher Jefferson schrieb:
> 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
Would it be useful to file a bugreport (at least for keeping track of 
this) or can this fact be assumed to be commonly known by the 
responsible persons, meaning that it is on their todo-list anyway? Maybe 
i can take a closer look at this during the xmas holiday and create a 
patch to fix this issue. Would this need any paperworks with the FSF?

René