X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flanguage%2Fcontrol%2Fdo-if.c;h=83de0e39a31a73574bfe0fa0b781dafc96eafbf0;hb=b078357653b9eebbba49a088c81c3dd935b58698;hp=612b08565cf2664fa24b57eee1c97d00d187facc;hpb=9ade26c8349b4434008c46cf09bc7473ec743972;p=pspp

diff --git a/src/language/control/do-if.c b/src/language/control/do-if.c
index 612b08565c..83de0e39a3 100644
--- a/src/language/control/do-if.c
+++ b/src/language/control/do-if.c
@@ -1,5 +1,5 @@
 /* PSPP - a program for statistical analysis.
-   Copyright (C) 1997-9, 2000, 2009-2011 Free Software Foundation, Inc.
+   Copyright (C) 1997-9, 2000, 2009-2012 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
@@ -19,7 +19,7 @@
 #include <stdlib.h>
 
 #include "data/case.h"
-#include "data/procedure.h"
+#include "data/dataset.h"
 #include "data/transformations.h"
 #include "data/value.h"
 #include "language/command.h"
@@ -124,9 +124,12 @@ int
 cmd_else (struct lexer *lexer UNUSED, struct dataset *ds)
 {
   struct do_if_trns *do_if = ctl_stack_top (&do_if_class);
-  assert (ds == do_if->ds);
+
   if (do_if == NULL || !must_not_have_else (do_if))
     return CMD_CASCADING_FAILURE;
+
+  assert (ds == do_if->ds);
+
   add_else (do_if);
   return CMD_SUCCESS;
 }
@@ -136,11 +139,11 @@ int
 cmd_end_if (struct lexer *lexer UNUSED, struct dataset *ds)
 {
   struct do_if_trns *do_if = ctl_stack_top (&do_if_class);
-  assert (ds == do_if->ds);
 
   if (do_if == NULL)
     return CMD_CASCADING_FAILURE;
 
+  assert (ds == do_if->ds);
   ctl_stack_pop (do_if);
 
   return CMD_SUCCESS;
@@ -174,7 +177,7 @@ must_not_have_else (struct do_if_trns *do_if)
 {
   if (has_else (do_if))
     {
-      msg (SE, _("This command may not follow ELSE in DO IF...END IF."));
+      msg (SE, _("This command may not follow %s in %s ... %s."), "ELSE", "DO IF", "END IF");
       return false;
     }
   else