Re: [boost] [config] request for BOOST_NO_CXX11_HDR_ATOMIC

Subject: Re: [boost] [config] request for BOOST_NO_CXX11_HDR_ATOMIC
From: Tim Blechmann (tim_at_[hidden])
Date: 2012-06-30 05:04:34

>> preparing boost.lockfree for trunk, i need a good way to figure out if
>> the <atomic> header is available. would it be possible to add a macro to
>> detect that? BOOST_NO_CXX11_HDR_ATOMIC or the like?
>>
>> thanks, tim
> 
> FYI, gcc 4.4 has <cstdatomic> instead of <atomic> with the same contents. I 
> don't know about other compilers, maybe there are other similar cases. So we 
> may be better have <boost/atomic.hpp> which defines the macro or includes the 
> appropriate compiler header otherwise. Or perhaps this is the Boost.Atomic 
> job.

one point is to have an <atomic> header, the second point is an
compliant implementation of atomic<>. gcc did not support atomic<> for
structs before 4.7 :/

tim