Re: boost/rational.hpp and VS2019

From: John Maddock (jz.maddock_at_[hidden])
Date: 2021-08-16 17:57:49

What architecture are you building for?

These intrinsic headers come from boost/integer/common_factor_rt.hpp and:

#if ((defined(BOOST_MSVC) && (BOOST_MSVC >= 1600)) || 
(defined(__clang__) && defined(__c2__)) || (defined(BOOST_INTEL) && 
defined(_MSC_VER))) && (defined(_M_IX86) || defined(_M_X64))
#include <intrin.h>
#endif

I'm wondering if the check for x86 needs to be applied to the BOOST_MSVC 
check as well as the intel one?

John.

> I'm guessing this might be solvable by updating to a newer version of 
> boost (currently I'm running ver 1.71.0) but before updating, I 
> wondered if there might be something obvious that 'm missing....
>
> I'm building with Visual Studio 2019 and I get a whole bunch of errors 
> simply by adding this line to an empty source file:-
>
> Â Â Â Â Â  #include "boost/rational.hpp"
>
> It seems to be the same 6 errors but at various different lines - i.e. 
> these errors, over & over again:-
>
> Â Â Â Â Â  Visual 
> Studio\2019\Community\VC\Tools\MSVC\14.29.30133\include\ammintrin.h(146,19): 
> error C4430: missing type specifier - int assumed. Note: C++ does not 
> support default-int
> Â Â Â Â Â  Visual 
> Studio\2019\Community\VC\Tools\MSVC\14.29.30133\include\ammintrin.h(146,8): 
> error C2146: syntax error: missing ';' before identifier '_mm_macc_ps'
> Â Â Â Â Â  Visual 
> Studio\2019\Community\VC\Tools\MSVC\14.29.30133\include\ammintrin.h(147,20): 
> error C4430: missing type specifier - int assumed. Note: C++ does not 
> support default-int
> Â Â Â Â Â  Visual 
> Studio\2019\Community\VC\Tools\MSVC\14.29.30133\include\ammintrin.h(147,9): 
> error C2146: syntax error: missing ';' before identifier '_mm_macc_pd'
> Â Â Â Â Â  Visual 
> Studio\2019\Community\VC\Tools\MSVC\14.29.30133\include\ammintrin.h(148,19): 
> error C4430: missing type specifier - int assumed. Note: C++ does not 
> support default-int
> Â Â Â Â Â  Visual 
> Studio\2019\Community\VC\Tools\MSVC\14.29.30133\include\ammintrin.h(148,1): 
> error C2086: 'int __m128': redefinition
>
> I just wondered if this might ring a bell with someone?  e.g. might 
> there be some preprocesser #define that I should've defined?  (or a 
> #define that I shouldn't be defining...)
>
> Thanks for any suggestions,  John
> _______________________________________________
> Boost-users mailing list
> Boost-users_at_[hidden]
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