Re: [Boost-users] Issues trying to use boost::unordered_map

Subject: Re: [Boost-users] Issues trying to use boost::unordered_map
From: Leon Mlakar (leon_at_[hidden])
Date: 2016-09-29 14:11:35

On 29.09.2016 19:32, Chris Glover wrote:
>
>
>
>     This:
>
>     void construct(_Objty *_Ptr, _Types&&... _Args) { ::new ((void
>     *)_Ptr) _Objty(::std:: forward<_Types>(_Args)...); } is C++11
>     code. Best regards, Leon
>
>
> This code is not coming from boost. I think this code is coming from 
> the xmemory0 header packaged with the Visual C++ standard library. I 
> don't have a version as old as VS2005 to confirm what it looks like 
> there, but I have that exact snippet of code in my local VS2015 
> xmemory0 header (also in the allocator header).
>
Yeah, having multiple VS installations could be it. This code surely 
can't come from VS2005 as it can't compile it, but I vaguely remember 
that old Visual Studios did have problems with multiple installations.

Best regards,

Leon