X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fmath%2Finteraction.h;h=23bd4f219eaf2813b06f240f91ca27e06ec61a50;hb=2a45a48f87553563cbf0f0b6dcc20396b3e5a27a;hp=96c2940aef72d7e1f13f1305c9112f58d347fa44;hpb=3a82e941418b74d8f270cf164291a3938fff61d5;p=pspp

diff --git a/src/math/interaction.h b/src/math/interaction.h
index 96c2940aef..23bd4f219e 100644
--- a/src/math/interaction.h
+++ b/src/math/interaction.h
@@ -33,15 +33,20 @@ struct interaction
 };
 
 struct interaction * interaction_create (const struct variable *);
+struct interaction * interaction_clone (const struct interaction *);
 void interaction_destroy (struct interaction *);
 void interaction_add_variable (struct interaction *, const struct variable *);
 void interaction_dump (const struct interaction *);
 void interaction_to_string (const struct interaction *iact, struct string *str);
+bool interaction_is_proper_subset (const struct interaction *x, const struct interaction *y);
+bool interaction_is_subset (const struct interaction *x, const struct interaction *y);
 
 
 struct ccase;
-unsigned int interaction_case_hash (const struct interaction *, const struct ccase *);
+unsigned int interaction_case_hash (const struct interaction *, const struct ccase *, unsigned int base);
 bool interaction_case_equal (const struct interaction *, const struct ccase *, const struct ccase *);
 bool interaction_case_is_missing (const struct interaction *, const struct ccase *, enum mv_class);
+int interaction_case_cmp_3way (const struct interaction *, const struct ccase *, const struct ccase *);
+
 
 #endif