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From: Edward Diener (eldiener_at_[hidden])
Date: 2021-08-16 16:01:06


On 8/16/2021 10:32 AM, John Emmas via Boost-users wrote:
> 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:-
>
>       #include "boost/rational.hpp"
>
> It seems to be the same 6 errors but at various different lines - i.e.
> these errors, over & over again:-
>
>       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
>       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'
>       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
>       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'
>       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
>       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
#include "boost/rational.hpp"

int main()
     {
     return 0;
     }

The above code compiled against VS2019 gives no errors.


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