Function fftw_plan_guru64_dft_r2c

pub unsafe extern "C" fn fftw_plan_guru64_dft_r2c(
    rank: c_int,
    dims: *const fftw_iodim64,
    howmany_rank: c_int,
    howmany_dims: *const fftw_iodim64,
    in_: *mut f64,
    out: *mut fftw_complex,
    flags: c_uint,
) -> fftw_plan