data.go
func NewDataBytes(b []byte) (*Data, error) {
	d := newData()
	var cb *C.char
	if len(b) != 0 {
		cb = (*C.char)(unsafe.Pointer(&b[0]))
	}
	return d, handleError(C.gpgme_data_new_from_mem(&d.dh, cb, C.size_t(len(b)), 1))
}
func NewDataBytes(b []byte) (*Data, error) {
	d := newData()
	var cb *C.char
	if len(b) != 0 {
		cb = (*C.char)(unsafe.Pointer(&b[0]))
	}
	return d, handleError(C.gpgme_data_new_from_mem(&d.dh, cb, C.size_t(len(b)), 1))
}
// NewDataBytes returns a new memory based data buffer that contains `b` bytes