Function ocl::ffi::clCreateSubDevices

pub unsafe extern "system" fn clCreateSubDevices(in_device: *mut c_void,
                                                 properties: *const isize,
                                                 num_devices: u32,
                                                 out_devices: *mut *mut c_void,
                                                 num_devices_ret: *mut u32)
                                                 -> i32