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Complex number support C/C++

Rob Barton
Expert 2220 points

I have been searching to see if there is any support for some form of complex number support at the c/c++ level.

You have assembly level instructions that can multiply two float32 numbers, but I can't find any complex data type at the c/C++ level.

I just want to have it compile/optimize a complex multiply to the complex multiply instruction, since you support that at the assembly level it would be nice to be sure it makes use of it.

It doesn't appear that is one for the c28377D?  Is that correct?  So I must make my own COMPLEX class or complex structure storing the real and imaginary, and all the support functions to do basic complex operators correct?  it is not already done somewhere that is accessible for this part?

Thanks.

  • 0
    TI__Guru* 84225 points
    C2000 supports the C++ <complex> header file since at least 15.12.0.LTS:
    #include <iostream>
    #include <complex>

    int main()
    {
    std::complex<float> f = -1;
    std::complex<float> g = std::sqrt(f);
    std::cout << g << std::endl;
    }

    However, I'm not sure the compiler can take advantage of a C2000 complex multiply hardware instruction yet.