Re: [boost] [regression runner] Preference libstdc++ vs. libc++

Subject: Re: [boost] [regression runner] Preference libstdc++ vs. libc++
From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2017-03-07 13:57:53

On 03/07/17 16:14, Jonathan Wakely via Boost wrote:
> On 6 March 2017 at 23:14, Edward Diener via Boost wrote:
>
>>
>> Do any Boost libraries really target gnu features, if they exist, that are
>> not in the corresponding c++ level ? If not there is no reason to test the
>> gnu levels and the c++ levels seem just fine. I know that I do not
>> specifically test gnu levels but c++ levels instead when I run local tests.
>>
>>
> Does Boost.Multiprecision depend on the __int128 and __float128 extensions?
>
> std::is_integral<__int128>::value is true for gnu++14 but false for c++14

__int128 is definitely used in Boost.Atomic, although it's an optional 
dependency.