ONEWAY: Fixed crash when the dependent variable contained only missing values.

[pspp-builds.git] / src / math / categoricals.h

diff --git a/src/math/categoricals.h b/src/math/categoricals.h
index ec708efa178c91a3c8b621264a1fc3d05dffd3e8..2ea47d516a770bb7115df2ddca987f0e14abc99d 100644 (file)
--- a/src/math/categoricals.h
+++ b/src/math/categoricals.h
@@ -68,11 +68,16 @@ size_t categoricals_df_total (const struct categoricals *cat);
 size_t categoricals_get_n_variables (const struct categoricals *cat);
 
 
+bool categoricals_is_complete (const struct categoricals *cat);
+
+
 /*
   Must be called (once) before any call to the *_by_subscript or *_by_category
-  functions, but AFTER any calls to categoricals_update 
+  functions, but AFTER any calls to categoricals_update.
+  If this function returns false, then no calls to _by_subscript or *_by_category
+  are allowed.
 */
-void categoricals_done (const struct categoricals *cat);
+bool categoricals_done (const struct categoricals *cat);
 
 
 /*