X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flanguage%2Fcontrol%2Fdo-if.c;h=61c450a52359b76683a5c7f9c6ca926801c8c032;hb=96b31e17b2c336995db448531ab7f86f57319b5f;hp=a5aa430f12ccb7ca0ff2f2a9133ccb365fd610db;hpb=f5c108becd49d78f4898cab11352291f5689d24e;p=pspp

diff --git a/src/language/control/do-if.c b/src/language/control/do-if.c
index a5aa430f12..61c450a523 100644
--- a/src/language/control/do-if.c
+++ b/src/language/control/do-if.c
@@ -1,20 +1,18 @@
-/* PSPP - computes sample statistics.
+/* PSPP - a program for statistical analysis.
    Copyright (C) 1997-9, 2000 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/>. */
 
 #include <config.h>
 
@@ -28,12 +26,12 @@
 #include <language/command.h>
 #include <language/expressions/public.h>
 #include <language/lexer/lexer.h>
-#include <libpspp/alloc.h>
 #include <libpspp/compiler.h>
 #include <libpspp/message.h>
-#include <libpspp/message.h>
 #include <libpspp/str.h>
 
+#include "xalloc.h"
+
 #include "gettext.h"
 #define _(msgid) gettext (msgid)
 
@@ -84,8 +82,7 @@ struct do_if_trns
 static const struct ctl_class do_if_class;
 
 static int parse_clause (struct lexer *, struct do_if_trns *, struct dataset *ds);
-static void add_clause (struct do_if_trns *,
-                        struct expression *condition, int target_index);
+static void add_clause (struct do_if_trns *, struct expression *condition);
 static void add_else (struct do_if_trns *);
 
 static bool has_else (struct do_if_trns *);
@@ -167,7 +164,7 @@ static void
 add_else (struct do_if_trns *do_if)
 {
   assert (!has_else (do_if));
-  add_clause (do_if, NULL, next_transformation (do_if->ds));
+  add_clause (do_if, NULL);
 }
 
 /* Returns true if DO_IF does not yet have an ELSE clause.
@@ -205,16 +202,16 @@ parse_clause (struct lexer *lexer, struct do_if_trns *do_if, struct dataset *ds)
   if (condition == NULL)
     return CMD_CASCADING_FAILURE;
 
-  add_clause (do_if, condition, next_transformation (ds));
+  add_clause (do_if, condition);
 
   return lex_end_of_command (lexer);
 }
 
 /* Adds a clause to DO_IF that tests for the given CONDITION and,
-   if true, jumps to TARGET_INDEX. */
+   if true, jumps to the set of transformations produced by
+   following commands. */
 static void
-add_clause (struct do_if_trns *do_if,
-            struct expression *condition, int target_index)
+add_clause (struct do_if_trns *do_if, struct expression *condition)
 {
   struct clause *clause;
 
@@ -225,7 +222,7 @@ add_clause (struct do_if_trns *do_if,
                               do_if->clause_cnt + 1, sizeof *do_if->clauses);
   clause = &do_if->clauses[do_if->clause_cnt++];
   clause->condition = condition;
-  clause->target_index = target_index;
+  clause->target_index = next_transformation (do_if->ds);
 }
 
 /* Finalizes DO IF by clearing the control stack, thus ensuring