Function rsworld_sys::D4C

pub unsafe extern "C" fn D4C(
    x: *const c_double, 
    x_length: c_int, 
    fs: c_int, 
    temporal_positions: *const c_double, 
    f0: *const c_double, 
    f0_length: c_int, 
    fft_size: c_int, 
    option: *const D4COption, 
    aperiodicity: *mut *mut c_double
)