struct fmt_spec;
union value;
-char * data_out (const union value *, const struct fmt_spec *);
+char * data_out (const union value *, const char *encoding, const struct fmt_spec *);
-char * data_out_pool (const union value *, const struct fmt_spec *, struct pool *pool);
+char * data_out_pool (const union value *, const char *encoding, const struct fmt_spec *, struct pool *pool);
void data_out_legacy (const union value *input, const char *encoding,
const struct fmt_spec *format, char *output);