c++: use nullptr for C++11.

[bison.git] / lib / bitset_stats.c

diff --git a/lib/bitset_stats.c b/lib/bitset_stats.c
index a05638533d9c9c2d07974af6f257a17e7e2d4e35..bde9b98848109f24a042cce8c1dad53fea9f02d2 100644 (file)
--- a/lib/bitset_stats.c
+++ b/lib/bitset_stats.c
@@ -1,5 +1,7 @@
 /* Bitset statistics.
-   Copyright (C) 2002-2006, 2009-2010 Free Software Foundation, Inc.
+
+   Copyright (C) 2002-2006, 2009-2012 Free Software Foundation, Inc.
+
    Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
 
    This program is free software: you can redistribute it and/or modify
@@ -251,15 +253,15 @@ bitset_stats_read (const char *file_name)
   if (file)
     {
       if (fread (&bitset_stats_info_data, sizeof (bitset_stats_info_data),
-                1, file) != 1)
-       {
-         if (ferror (file))
-           perror (_("Could not read stats file."));
-         else
-           fprintf (stderr, _("Bad stats file size.\n"));
-       }
+                 1, file) != 1)
+        {
+          if (ferror (file))
+            perror (_("cannot read stats file"));
+          else
+            fprintf (stderr, _("bad stats file size\n"));
+        }
       if (fclose (file) != 0)
-       perror (_("Could not read stats file."));
+        perror (_("cannot read stats file"));
     }
   bitset_stats_info_data.runs++;
 }
@@ -281,13 +283,13 @@ bitset_stats_write (const char *file_name)
   if (file)
     {
       if (fwrite (&bitset_stats_info_data, sizeof (bitset_stats_info_data),
-                 1, file) != 1)
-       perror (_("Could not write stats file."));
+                  1, file) != 1)
+        perror (_("cannot write stats file"));
       if (fclose (file) != 0)
-       perror (_("Could not write stats file."));
+        perror (_("cannot write stats file"));
     }
   else
-    perror (_("Could not open stats file for writing."));
+    perror (_("cannot open stats file for writing"));
 }
 
 
@@ -574,11 +576,9 @@ bitset_stats_list (bitset bset, bitset_bindex *list,
   bitset_bindex tmp;
   bitset_bindex size;
   bitset_bindex i;
-  enum bitset_type type;
 
   count = BITSET_LIST_ (bset->s.bset, list, num, next);
 
-  type = BITSET_TYPE_ (bset->s.bset);
   BITSET_STATS_LISTS_INC (bset->s.bset);
 
   /* Log histogram of number of set bits.  */