{
struct casereader *subreader; /* Source of input cases. */
- void (*translate) (const struct ccase *input, struct ccase *output,
- void *aux);
+ void (*translate) (struct ccase *input, struct ccase *output, void *aux);
bool (*destroy) (void *aux);
void *aux;
};
struct casereader *
casereader_create_translator (struct casereader *subreader,
size_t output_value_cnt,
- void (*translate) (const struct ccase *input,
+ void (*translate) (struct ccase *input,
struct ccase *output,
void *aux),
bool (*destroy) (void *aux),