boost::pool_allocator construct() with single argument required by GCC 4.6 stl

[vivien.millet@…]

I tried to compile a MSVC code using custom std::vector/pool_allocator under win32/codeblocks (which uses GCC 4.6.0), and I get an error because on vector::resize() and underlying call _ _ uninitialized_default_a(), the stl implemented try to call _ _ alloc.construct() with a single placement address as argument.

The thing is that boost:pool_allocator provides only one version of construct() which takes 2 arguments. Why isn't a "default" construct( const pointer& ) implemented in pool_allocator ? Or why this version of the stl implements that ? Or what am I doing wrong ?

Thanks

[viboes]

Please set the component in the future if you want it to be analyzed.

[Lars T. Kyllingstad <lars.kyllingstad@…>]

I have run into the same problem when using the std::list constructor which only takes the list size. Here is a test case:

#include <list>
#include <boost/pool/pool_alloc.hpp>

void foo()
{
    typedef boost::fast_pool_allocator<int> Alloc;
    std::list<int, Alloc> myList(3);
}

Compiled with GCC 4.6.1 using -std=c++0x and Boost 1.51.0, this results in the following errors:

/usr/include/c++/4.6/bits/stl_list.h: In member function ‘std::list<_Tp, _Alloc>::_Node* std::list<_Tp, _Alloc>::_M_create_node(_Args&& ...) [with _Args = {}, _Tp = int, _Alloc = boost::fast_pool_allocator<int>, std::list<_Tp, _Alloc>::_Node = std::_List_node<int>]’:
/usr/include/c++/4.6/bits/stl_list.h:1523:63:   instantiated from ‘void std::list<_Tp, _Alloc>::_M_insert(std::list<_Tp, _Alloc>::iterator, _Args&& ...) [with _Args = {}, _Tp = int, _Alloc = boost::fast_pool_allocator<int>, std::list<_Tp, _Alloc>::iterator = std::_List_iterator<int>]’
/usr/include/c++/4.6/bits/stl_list.h:998:11:   instantiated from ‘void std::list<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {}, _Tp = int, _Alloc = boost::fast_pool_allocator<int>]’
/usr/include/c++/4.6/bits/stl_list.h:1474:4:   instantiated from ‘void std::list<_Tp, _Alloc>::_M_default_initialize(std::list<_Tp, _Alloc>::size_type) [with _Tp = int, _Alloc = boost::fast_pool_allocator<int>, std::list<_Tp, _Alloc>::size_type = unsigned int]’
/usr/include/c++/4.6/bits/stl_list.h:534:9:   instantiated from ‘std::list<_Tp, _Alloc>::list(std::list<_Tp, _Alloc>::size_type) [with _Tp = int, _Alloc = boost::fast_pool_allocator<int>, std::list<_Tp, _Alloc>::size_type = unsigned int]’
a.cpp:7:35:   instantiated from here
/usr/include/c++/4.6/bits/stl_list.h:494:8: error: no matching function for call to ‘boost::fast_pool_allocator<std::_List_node<int>, boost::default_user_allocator_new_delete, boost::mutex, 32u, 0u>::construct(std::list<int, boost::fast_pool_allocator<int> >::_Node*&)’
/usr/include/c++/4.6/bits/stl_list.h:494:8: note: candidate is:
/home/larky/.local/include/boost/pool/pool_alloc.hpp:398:10: note: void boost::fast_pool_allocator<T, UserAllocator, Mutex, NextSize, MaxSize>::construct(boost::fast_pool_allocator<T, UserAllocator, Mutex, NextSize, MaxSize>::pointer, const value_type&) [with T = std::_List_node<int>, UserAllocator = boost::default_user_allocator_new_delete, Mutex = boost::mutex, unsigned int NextSize = 32u, unsigned int MaxSize = 0u, boost::fast_pool_allocator<T, UserAllocator, Mutex, NextSize, MaxSize>::pointer = std::_List_node<int>*, boost::fast_pool_allocator<T, UserAllocator, Mutex, NextSize, MaxSize>::value_type = std::_List_node<int>]
/home/larky/.local/include/boost/pool/pool_alloc.hpp:398:10: note:   candidate expects 2 arguments, 1 provided

I have changed the ticket type to "Bugs", since this version of Boost claims to support C++11 mode in GCC 4.6.

[anonymous]

Still broken in 1.54.0

[anonymous]

I'm facing the same issue. Any updates.