Function pffft_rust::pffft_zconvolve_accumulate

pub unsafe extern "C" fn pffft_zconvolve_accumulate(
    setup: *mut PFFFT_Setup, 
    dft_a: *const f32, 
    dft_b: *const f32, 
    dft_ab: *mut f32, 
    scaling: f32
)