Compiling Simple Test Program

[jbarnett8]

Hello!

I tried compiling the simple test program you include in your documentation

#include <iostream>
#include "xsimd/xsimd.hpp"

namespace xs = xsimd;

int main(int argc, char* argv[])
{
    xs::batch<double, 4> a(1.5, 2.5, 3.5, 4.5);
    xs::batch<double, 4> b(2.5, 3.5, 4.5, 5.5);
    auto mean = (a + b) / 2;
    std::cout << mean << std::endl;
    return 0;
}

I compile using
g++ -std=c++14 -o out -I xsimd/include/ main.cpp
where gcc is version 5.4.1 .

I get the following error

In file included from xsimd/types/xsimd_types_include.hpp:15:0,
                 from xsimd/types/xsimd_traits.hpp:12,
                 from xsimd/xsimd.hpp:14,
                 from main.cpp:2:
xsimd/types/xsimd_sse_int32.hpp: In function ‘xsimd::batch<int, 4ul> xsimd::select(const xsimd::batch_bool<int, 4ul>&, const xsimd::batch<int, 4ul>&, const xsimd::batch<int, 4ul>&)’:
xsimd/types/xsimd_sse_int32.hpp:441:70: error: ‘s’ was not declared in this scope
         return _mm_or_si128(_mm_and_si128(cond, a), _mm_andnot_si128(s, b));
                                                                      ^
In file included from xsimd/types/xsimd_types_include.hpp:16:0,
                 from xsimd/types/xsimd_traits.hpp:12,
                 from xsimd/xsimd.hpp:14,
                 from main.cpp:2:
xsimd/types/xsimd_sse_int64.hpp: In function ‘xsimd::batch<long int, 2ul> xsimd::select(const xsimd::batch_bool<long int, 2ul>&, const xsimd::batch<long int, 2ul>&, const xsimd::batch<long int, 2ul>&)’:
xsimd/types/xsimd_sse_int64.hpp:460:70: error: ‘s’ was not declared in this scope
         return _mm_or_si128(_mm_and_si128(cond, a), _mm_andnot_si128(s, b));
                                                                      ^

I'm sure it's something simple I'm missing.

Thanks!

[JohanMabille]

Hi,

You're not missing anything, it is a typo in xsimd. We did not detect it since it happens only when SSE4.1 is not available, which does not seem to be the case for the processors used for the CI.

Thanks for catching it! I make a fix asap.