subcase

[pspp] / src / data / subcase.h

diff --git a/src/data/subcase.h b/src/data/subcase.h
index d50d0748ba86fbe89b64cd93db82f3b0f6a07408..88992bb9dd927c4c5bb7ce0fcc6ca82ceb78f0de 100644 (file)
--- a/src/data/subcase.h
+++ b/src/data/subcase.h
@@ -1,5 +1,5 @@
 /* PSPP - a program for statistical analysis.
-   Copyright (C) 2008 Free Software Foundation, Inc.
+   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -44,7 +44,8 @@ struct subcase
   {
     struct subcase_field *fields;
     size_t n_fields;
-    size_t n_values;
+
+    struct caseproto *proto;    /* Created lazily. */
   };
 
 void subcase_init_empty (struct subcase *);
@@ -52,17 +53,44 @@ void subcase_init_vars (struct subcase *,
                         const struct variable *const *, size_t n_vars);
 void subcase_init_var (struct subcase *,
                        const struct variable *, enum subcase_direction);
+void subcase_init (struct subcase *, int index, int width,
+                  enum subcase_direction);
+
 void subcase_clone (struct subcase *, const struct subcase *);
 void subcase_clear (struct subcase *);
 void subcase_destroy (struct subcase *);
 
+bool subcase_contains (const struct subcase *, int case_index);
+bool subcase_contains_var (const struct subcase *, const struct variable *);
+
+bool subcase_add (struct subcase *, int case_index, int width,
+                 enum subcase_direction direction);
 bool subcase_add_var (struct subcase *, const struct variable *,
                       enum subcase_direction);
+void subcase_add_vars (struct subcase *, const struct variable *const *,
+                       size_t n_vars, enum subcase_direction);
+
+void subcase_add_always (struct subcase *sc, int case_index, int width,
+                         enum subcase_direction direction);
+void subcase_add_var_always (struct subcase *, const struct variable *,
+                             enum subcase_direction);
+void subcase_add_vars_always (struct subcase *, const struct variable *const *,
+                              size_t n_vars, enum subcase_direction);
+void subcase_add_proto_always (struct subcase *, const struct caseproto *);
+
+void subcase_concat (struct subcase *, const struct subcase *);
+void subcase_concat_always (struct subcase *, const struct subcase *);
+
+void subcase_project (struct subcase *, size_t offset);
+
+const struct caseproto *subcase_get_proto (const struct subcase *);
 
 static inline bool subcase_is_empty (const struct subcase *);
 static inline size_t subcase_get_n_fields (const struct subcase *);
-static inline size_t subcase_get_n_values (const struct subcase *);
 
+static inline size_t subcase_get_width (const struct subcase *, size_t idx);
+static inline size_t subcase_get_case_index (const struct subcase *,
+                                             size_t idx);
 static inline enum subcase_direction subcase_get_direction (
   const struct subcase *, size_t idx);
 
@@ -92,6 +120,18 @@ bool subcase_equal_cx (const struct subcase *,
 bool subcase_equal_xx (const struct subcase *,
                        const union value *a, const union value *b);
 
+static inline size_t
+subcase_get_case_index (const struct subcase *sc, size_t idx)
+{
+  return sc->fields[idx].case_index;
+}
+
+static inline size_t
+subcase_get_width (const struct subcase *sc, size_t idx)
+{
+  return sc->fields[idx].width;
+}
+
 static inline enum subcase_direction
 subcase_get_direction (const struct subcase *sc, size_t idx)
 {
@@ -110,10 +150,4 @@ subcase_get_n_fields (const struct subcase *sc)
   return sc->n_fields;
 }
 
-static inline size_t
-subcase_get_n_values (const struct subcase *sc)
-{
-  return sc->n_values;
-}
-
 #endif /* data/subcase.h */