pub static mut clEnqueueMapBuffer: unsafe extern "C" fn(command_queue: cl_command_queue, buffer: cl_mem, blocking_map: cl_bool, map_flags: cl_map_flags, offset: size_t, size: size_t, num_events_in_wait_list: cl_uint, event_wait_list: *const cl_event, event: *mut cl_event, errcode_ret: *mut cl_int)