Re: Bugs in gcc 4.4 experimental c++0x libstdc++?

["Chris Jefferson" <chris at bubblescope dot net>]

2008/5/15 Germán Diago <germandiago@gmail.com>:
> Hello. I've been using g++-4.4 from svn and I think there is a bug in
> experimental libstdc++.
>
> The function template <class... _Args> void push_back(_Args... args)
> doesn't update the vector size.
>
> And another thing I don't know if it's a bug:
>
> I used code like this:
>
>
> void f(vector<int> && arg);
>
>
> int main(int argc, char * argv[])
> {
>   vector<int> v(3);
>   v.push_back(1); v.push_back(2); v.push_back(3);
>
>   f(move(v));
>
> }

In this case, nothing should happen by default. A rvalue reference is
like an lvalue reference in that simply passing them around does
nothing at all. Of course if in f you start doing things with 'arg',
then move constructors and such things may get called.

Chris