Re: [boost] [config] BOOST_NO_CXX11_ALLOCATOR and template aliases

Subject: Re: [boost] [config] BOOST_NO_CXX11_ALLOCATOR and template aliases
From: John Maddock (boost.regex_at_[hidden])
Date: 2014-02-05 11:51:03

> VC11 appears to not define BOOST_NO_CXX11_ALLOCATOR. However, as
> std::allocator_traits contains two template aliases, rebind_alloc and
> rebind_traits, and VC11 doesn't support template aliases, it has
> nonstandard definitions of these two.
>
> This is obviously a problem for code that wants to use
> std::allocator_traits.
>
> One way to fix that is for the user code to check
> BOOST_NO_CXX11_TEMPLATE_ALIASES and if so, refrain from using
> std::allocator_traits.
>
> Another is to just not define BOOST_NO_CXX11_ALLOCATOR for VC11. (VC12
> is conforming.)
>
> I tend to be in favor of the second option, as the effect would
> essentially be the same.

+1.

Can you make the changes?  I'm not yet in a position to test VC11, 
though I hope to be soon.

John.