Re: [boost] libcpp.hpp always defines BOOST_NO_CXX11_HDR_ATOMIC

Subject: Re: [boost] libcpp.hpp always defines BOOST_NO_CXX11_HDR_ATOMIC
From: John Maddock (boost.regex_at_[hidden])
Date: 2014-02-28 13:10:40

>> Do you have a patch that identifies when we don't need to set that macro?
>
> should the macro declare that the header exists, or that the
> implementation is complete?

That it exists and is reasonably useful.  If more "advanced" uses hit 
bugs then that's probably more of a BOOST_WORKAROUND or possibly a new 
macro.

HTH, John

> e.g. gcc/libstdc++ did support atomic<Integral> before fully supporting
> atomic<>. likewise, clang/libc++ is broken, if the wrapped type is a
> trivially copyable class [1].
>
> tim
>
> [1] http://llvm.org/bugs/show_bug.cgi?id=18097
>
>
>
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