Movables in std::vector

[Marc Glisse]

On Wed, 12 Oct 2011, Magnus Fromreide wrote:

> Using trunk and c++0x-mode I tried to use a vector of a movable, but not
> copyable, type.
>
> That failed.
>
> Looking inside stl_vector.h I find the following code line:
>
>       __glibcxx_class_requires(_Tp, _SGIAssignableConcept)

Funny how _SGIAssignableConcept is always the one that causes trouble. It 
already breaks many things in C++03, and since I removed it locally I 
haven't had other false positives.

> and that seems to indicate that movable types aren't yet allowed in
> vectors. Is that intentional?
>
> On the other hand http://gcc.gnu.org/onlinedocs/libstdc
> ++/manual/status.html#status.iso.200x seems to indicate that the c++11
> support is finished in vector so that is a little confusing.

http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt02ch05s02.html
"Please note that the checks are based on the requirements in the 
original C++ standard, some of which have changed in the upcoming C++0x 
revision. Additionally, some correct code might be rejected by the 
concept checks, for example template argument types may need to be 
complete when used in a template definition, rather than at the point of 
instantiation. There are no plans to address these shortcomings."

-- 
Marc Glisse