Function fftw_sys::fftwf_plan_dft_c2r_3d

pub unsafe extern "C" fn fftwf_plan_dft_c2r_3d(
    n0: c_int, 
    n1: c_int, 
    n2: c_int, 
    in_: *mut fftwf_complex, 
    out: *mut f32, 
    flags: c_uint
) -> fftwf_plan