X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdata%2Fcase-ordering.h;h=f49f26511402af246c01e26f5bbc2291e1b449e0;hb=5ee84736663824fe12474b78dace867e42893a14;hp=f1b6c30f7b7352638596a175c011850760328005;hpb=576237eae45fe54ea5ee41d44e257f6aa7e88861;p=pspp-builds.git

diff --git a/src/data/case-ordering.h b/src/data/case-ordering.h
index f1b6c30f..f49f2651 100644
--- a/src/data/case-ordering.h
+++ b/src/data/case-ordering.h
@@ -1,20 +1,20 @@
-/* PSPP - computes sample statistics.
+/* PSPP - a program for statistical analysis.
    Copyright (C) 2007 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 the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
+   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
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
 
-   This program is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-   02110-1301, USA. */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+/* Sort order for comparing cases. */
 
 #ifndef DATA_CASE_ORDERING_H
 #define DATA_CASE_ORDERING_H 1
@@ -31,21 +31,27 @@ enum sort_direction
     SRT_DESCEND			/* Z, Y, X, ..., C, B, A. */
   };
 
-struct case_ordering *case_ordering_create (const struct dictionary *);
+/* Creation and destruction. */
+struct case_ordering *case_ordering_create (void);
 struct case_ordering *case_ordering_clone (const struct case_ordering *);
 void case_ordering_destroy (struct case_ordering *);
 
-size_t case_ordering_get_value_cnt (const struct case_ordering *);
+/* Modification. */
+bool case_ordering_add_var (struct case_ordering *,
+                            const struct variable *, enum sort_direction);
+
+/* Comparing cases. */
 int case_ordering_compare_cases (const struct ccase *, const struct ccase *,
                                  const struct case_ordering *);
 
-bool case_ordering_add_var (struct case_ordering *,
-                            struct variable *, enum sort_direction);
+/* Inspection. */
+size_t case_ordering_get_value_cnt (const struct case_ordering *);
 size_t case_ordering_get_var_cnt (const struct case_ordering *);
-struct variable *case_ordering_get_var (const struct case_ordering *, size_t);
+const struct variable *case_ordering_get_var (const struct case_ordering *,
+                                              size_t);
 enum sort_direction case_ordering_get_direction (const struct case_ordering *,
                                                  size_t);
 void case_ordering_get_vars (const struct case_ordering *,
-                             struct variable ***, size_t *);
+                             const struct variable ***, size_t *);
 
 #endif /* data/case-ordering.h */