RosettaCodeData/Task/Vector/C++/vector.cpp

/*
 * CXXFLAGS=-march=native -O3 -std=<c|gnu>++23 -mfpmath=<your SIMD implementation> -ftree-vectorize -fopenmp-simd
 * See: [https://learn.microsoft.com/en-us/cpp/parallel/openmp/openmp-simd?view=msvc-180 Microsoft Visual Studio OpenMP SIMD]
 * compatible with every compiler and any SIMD platform.
 * Based on aligned vector type using cstdout not iostream.
 */
#include "vec.hpp"

using f32   = float;
using f32x2 = vec<f32,2>;

inline bool print_test(f32x2 a, f32x2 b);

int main(int argc, char** argv)
{
    f32x2 a = f32x2{ cosf(  M_PIf/6), sinf(  M_PIf/6) } * 3;
    f32x2 b = f32x2{ cosf(2*M_PIf/3), sinf(2*M_PIf/3) } * 5;

    exit(print_test(a,b) ? EXIT_SUCCESS : EXIT_FAILURE);
}

inline bool print_test(f32x2 a, f32x2 b)
{
    a.print(); fputs(" + ", stdout); b.print(); fputs(" = ", stdout);
    (a + b).println();
    a.print(); fputs(" - ", stdout); b.print(); fputs(" = ", stdout);
    (a - b).println();

    a.print(); fputs(" * 3                              = ", stdout);
    (a * 3.0f).println();
    b.print(); fputs(" / 2.5                            = ", stdout);
    (b / 2.5f).println();
    return true;
}