[Bug c++/42201] [C++0x] std::vector<std::unique_future<T>>::push_back fails

[lloyd at randombit dot net]

------- Comment #1 from lloyd at randombit dot net  2009-11-27 21:39 -------
Created an attachment (id=19165)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19165&action=view)
Test case

Here is the full output compiling this on my machine:

$ g++-4.5-20091112 -Wall -W -std=c++0x movable.cpp -o move
In file included from
/usr/local/gcc-4.5-20091112/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../include/c++/4.5.0/vector:69:0,
                 from movable.cpp:1:
/usr/local/gcc-4.5-20091112/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../include/c++/4.5.0/future:
In member function 'void std::vector<_Tp,
_Alloc>::_M_insert_aux(std::vector<_Tp, _Alloc>::iterator, _Args&& ...) [with
_Args = {std::unique_future<int>}, _Tp = std::unique_future<int>, _Alloc =
std::allocator<std::unique_future<int> >, std::vector<_Tp, _Alloc>::iterator =
__gnu_cxx::__normal_iterator<std::unique_future<int>*,
std::vector<std::unique_future<int> > >, typename std::vector<_Tp,
_Alloc>::_Base::_Tp_alloc_type::pointer = std::unique_future<int>*]':
/usr/local/gcc-4.5-20091112/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../include/c++/4.5.0/bits/vector.tcc:100:4:
  instantiated from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...)
[with _Args = {std::unique_future<int>}, _Tp = std::unique_future<int>, _Alloc
= std::allocator<std::unique_future<int> >]'
/usr/local/gcc-4.5-20091112/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../include/c++/4.5.0/bits/stl_vector.h:747:9:
  instantiated from 'void std::vector<_Tp, _Alloc>::push_back(value_type&&)
[with _Tp = std::unique_future<int>, _Alloc =
std::allocator<std::unique_future<int> >, value_type =
std::unique_future<int>]'
movable.cpp:12:50:   instantiated from here
/usr/local/gcc-4.5-20091112/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../include/c++/4.5.0/future:440:22:
error: deleted function 'std::unique_future<_Res>&
std::unique_future<_Res>::operator=(const std::unique_future<_Res>&) [with _Res
= int]'
/usr/local/gcc-4.5-20091112/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../include/c++/4.5.0/bits/vector.tcc:314:4:
error: used here
In file included from
/usr/local/gcc-4.5-20091112/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../include/c++/4.5.0/vector:61:0,
                 from movable.cpp:1:
/usr/local/gcc-4.5-20091112/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../include/c++/4.5.0/future:
In static member function 'static _BI2 std::__copy_move_backward<true, false,
std::random_access_iterator_tag>::__copy_move_b(_BI1, _BI1, _BI2) [with _BI1 =
std::unique_future<int>*, _BI2 = std::unique_future<int>*]':
/usr/local/gcc-4.5-20091112/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../include/c++/4.5.0/bits/stl_algobase.h:596:18:
  instantiated from '_BI2 std::__copy_move_backward_a(_BI1, _BI1, _BI2) [with
bool _IsMove = true, _BI1 = std::unique_future<int>*, _BI2 =
std::unique_future<int>*]'
/usr/local/gcc-4.5-20091112/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../include/c++/4.5.0/bits/stl_algobase.h:606:45:
  instantiated from '_BI2 std::__copy_move_backward_a2(_BI1, _BI1, _BI2) [with
bool _IsMove = true, _BI1 = std::unique_future<int>*, _BI2 =
std::unique_future<int>*]'
/usr/local/gcc-4.5-20091112/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../include/c++/4.5.0/bits/stl_algobase.h:677:56:
  instantiated from '_BI2 std::move_backward(_BI1, _BI1, _BI2) [with _BI1 =
std::unique_future<int>*, _BI2 = std::unique_future<int>*]'
/usr/local/gcc-4.5-20091112/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../include/c++/4.5.0/bits/vector.tcc:308:4:
  instantiated from 'void std::vector<_Tp,
_Alloc>::_M_insert_aux(std::vector<_Tp, _Alloc>::iterator, _Args&& ...) [with
_Args = {std::unique_future<int>}, _Tp = std::unique_future<int>, _Alloc =
std::allocator<std::unique_future<int> >, std::vector<_Tp, _Alloc>::iterator =
__gnu_cxx::__normal_iterator<std::unique_future<int>*,
std::vector<std::unique_future<int> > >, typename std::vector<_Tp,
_Alloc>::_Base::_Tp_alloc_type::pointer = std::unique_future<int>*]'
/usr/local/gcc-4.5-20091112/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../include/c++/4.5.0/bits/vector.tcc:100:4:
  instantiated from 'void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...)
[with _Args = {std::unique_future<int>}, _Tp = std::unique_future<int>, _Alloc
= std::allocator<std::unique_future<int> >]'
/usr/local/gcc-4.5-20091112/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../include/c++/4.5.0/bits/stl_vector.h:747:9:
  instantiated from 'void std::vector<_Tp, _Alloc>::push_back(value_type&&)
[with _Tp = std::unique_future<int>, _Alloc =
std::allocator<std::unique_future<int> >, value_type =
std::unique_future<int>]'
movable.cpp:12:50:   instantiated from here
/usr/local/gcc-4.5-20091112/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../include/c++/4.5.0/future:440:22:
error: deleted function 'std::unique_future<_Res>&
std::unique_future<_Res>::operator=(const std::unique_future<_Res>&) [with _Res
= int]'
/usr/local/gcc-4.5-20091112/lib/gcc/x86_64-unknown-linux-gnu/4.5.0/../../../../include/c++/4.5.0/bits/stl_algobase.h:561:6:
error: used here


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42201