return new;
}
-/* Returns true if a I/O error has occurred while processing a
- datasheet operation. */
+/* Returns true if datasheet DS is tainted.
+ A datasheet is tainted by an I/O error or by taint
+ propagation to the datasheet. */
bool
datasheet_error (const struct datasheet *ds)
{
return taint_is_tainted (ds->taint);
}
+/* Marks datasheet DS tainted. */
void
datasheet_force_error (struct datasheet *ds)
{
taint_set_taint (ds->taint);
}
+/* Returns datasheet DS's taint object. */
const struct taint *
datasheet_get_taint (const struct datasheet *ds)
{
return reader;
}
+/* "read" function for the datasheet random casereader. */
static bool
datasheet_reader_read (struct casereader *reader UNUSED, void *ds_,
casenumber case_idx, struct ccase *c)
}
}
+/* "destroy" function for the datasheet random casereader. */
static void
datasheet_reader_destroy (struct casereader *reader UNUSED, void *ds_)
{
datasheet_destroy (ds);
}
+/* "advance" function for the datasheet random casereader. */
static void
datasheet_reader_advance (struct casereader *reader UNUSED, void *ds_,
casenumber case_cnt)
datasheet_delete_rows (ds, 0, case_cnt);
}
+/* Random casereader class for a datasheet. */
static const struct casereader_random_class datasheet_reader_class =
{
datasheet_reader_read,