X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=src%2Fdata%2Fvalue.h;h=3ea55298cc2e6565eaf4d35ac5e4617e7ac4568c;hb=5ae0c7d839b1c9ad4e8581197b4e62e0c521f77a;hp=d4978989044040933f328fd02e4fd9829d485285;hpb=338fb2a2e84df6427a2fdee6769421f57d5666d8;p=pspp-builds.git

diff --git a/src/data/value.h b/src/data/value.h
index d4978989..3ea55298 100644
--- a/src/data/value.h
+++ b/src/data/value.h
@@ -1,21 +1,18 @@
-/* PSPP - computes sample statistics.
+/* PSPP - a program for statistical analysis.
    Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
-   Written by Ben Pfaff <blp@gnu.org>.
 
-   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/>. */
 
 #if !value_h
 #define value_h 1
@@ -23,6 +20,7 @@
 #include <float.h>
 #include <libpspp/misc.h>
 #include "minmax.h"
+#include <config.h>
 
 /* Values. */
 
@@ -38,6 +36,14 @@
 #define LOWEST second_lowest_value
 #define HIGHEST DBL_MAX
 
+/* Number of "union value"s required for a variable of the given
+   WIDTH. */
+static inline size_t
+value_cnt_from_width (int width)
+{
+  return width == 0 ? 1 : DIV_RND_UP (width, MAX_SHORT_STRING);
+}
+
 /* A numeric or short string value.
    Multiple consecutive values represent a long string. */
 union value
@@ -50,4 +56,7 @@ union value *value_dup (const union value *, int width);
 int compare_values (const union value *, const union value *, int width);
 unsigned hash_value (const union value  *, int width);
 
+void value_copy (union value *, const union value *, int width);
+void value_set_missing (union value *, int width);
+
 #endif /* !value.h */