-casereader_create_translator (struct casereader *, size_t output_value_cnt,
- void (*translate) (struct ccase *input,
- struct ccase *output,
- void *aux),
+casereader_create_translator (struct casereader *,
+ const struct caseproto *output_proto,
+ struct ccase *(*translate) (struct ccase *,
+ void *aux),