Function espeak_sys::espeak_Synth_Mark

pub unsafe extern "C" fn espeak_Synth_Mark(
    text: *const c_void, 
    size: size_t, 
    index_mark: *const c_char, 
    end_position: c_uint, 
    flags: c_uint, 
    unique_identifier: *mut c_uint, 
    user_data: *mut c_void
) -> espeak_ERROR