X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdata%2Fcategory.h;h=f90ae7cd2809e9b3b96d8968de1c1f1ae71e0610;hb=ed7039fafdba4e2f72ad6e4192197fc938c6d2b0;hp=db4bb339bcb5e6ecab1bd0de98a76632dfe20f95;hpb=c3ac5a8af9c449072c7e872ca70a78c1755ae309;p=pspp-builds.git

diff --git a/src/data/category.h b/src/data/category.h
index db4bb339..f90ae7cd 100644
--- a/src/data/category.h
+++ b/src/data/category.h
@@ -32,7 +32,7 @@
 
 #ifndef CATEGORY_H
 #define CATEGORY_H
-
+#include <stdbool.h>
 #include <stddef.h>
 
 struct cat_vals;
@@ -61,5 +61,9 @@ cat_get_category_count (const size_t, const struct variable *);
  */
 size_t  cat_get_n_categories (const struct variable *v);
 
-
+/*
+  If VAR is categorical with d categories, its first category should
+  correspond to the origin in d-dimensional Euclidean space.
+ */
+bool cat_is_origin (const struct variable *, const union value *);
 #endif