Re: [boost] [fusion] Compilation errors on Intel compiler (C++14)

Subject: Re: [boost] [fusion] Compilation errors on Intel compiler (C++14)
From: Lee Clagett (forum_at_[hidden])
Date: 2016-12-06 12:39:54

On Tue, 6 Dec 2016 19:46:03 +0300
Andrey Semashev <andrey.semashev_at_[hidden]> wrote:

> Hi,
> 
> I'm seeing compilation errors coming from Boost.Fusion headers on 
> Sandia-intel-17.0-c++14:
> 
> http://www.boost.org/development/tests/develop/developer/output/Sandia-intel-17-0-c++14-boost-bin-v2-libs-log-test-core-test-intel-linux-debug-threading-multi.html
> 
> Notably, the same tests compile fine in C++11 mode on the same
> compiler, which makes me think that is related to C++14 mode
> specifically. Looking at the code, it seems the compiler makes
> constexpr functions implicitly const-qualified even though it
> shouldn't in C++14 mode, so it's likely a compiler bug. Still, is it
> possible to add a workaround?
> 

I recently added a config macro BOOST_FUSION_DISABLE_VARIADIC_VECTOR
which reverts completely to the C++03 fusion::vector code. This will
affect fusion::tuple also. Unfortunately I do not think it will solve
this particular issue - one of the files is used by both fusion::vector
versions.

Is it possible to override BOOST_CXX14_CONSTEXPR somehow?

Lee