X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/c131cbff030ee81e06b2528c40c7a294ac156847..1094323fe42f4bc3bcfd74ad15b5598522e265b2:/lib/bitset_stats.c?ds=sidebyside

diff --git a/lib/bitset_stats.c b/lib/bitset_stats.c
index 11f3d6f8..70acd977 100644
--- a/lib/bitset_stats.c
+++ b/lib/bitset_stats.c
@@ -1,5 +1,5 @@
 /* Bitset statistics.
-   Copyright (C) 2002 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003, 2004 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
@@ -14,7 +14,7 @@
 
    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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
 
 /* This file is a wrapper bitset implementation for the other bitset
@@ -22,7 +22,7 @@
    statistics gathering without having to instrument the bitset
    implementations.  When statistics gathering is enabled, the bitset
    operations get vectored through here and we then call the appropriate
-   routines.  
+   routines.
 */
 
 #ifdef HAVE_CONFIG_H
@@ -33,6 +33,7 @@
 #include "abitset.h"
 #include "ebitset.h"
 #include "lbitset.h"
+#include "vbitset.h"
 #include "bitset_stats.h"
 #include <stdlib.h>
 #include <string.h>
@@ -75,19 +76,6 @@
     bitset_stats_info->types[BITSET_TYPE_ (BSET)].list_density[(I)]++
 
 
-typedef struct bitset_stats_struct
-{
-  bitset bset;
-} *bitset_stats;
-
-
-struct bitset_struct
-{
-  struct bbitset_struct b;
-  struct bitset_stats_struct s;
-};
-
-
 struct bitset_type_info_struct
 {
   unsigned int allocs;
@@ -113,44 +101,13 @@ struct bitset_stats_info_struct
 
 struct bitset_stats_info_struct bitset_stats_info_data;
 struct bitset_stats_info_struct *bitset_stats_info;
-int bitset_stats_enabled = 0;
-
-
-static void bitset_stats_set PARAMS ((bitset, bitset_bindex));
-static void bitset_stats_reset PARAMS ((bitset, bitset_bindex));
-static int bitset_stats_test PARAMS ((bitset, bitset_bindex));
-static int bitset_stats_size PARAMS ((bitset));
-static int bitset_stats_op1 PARAMS ((bitset, enum bitset_ops));
-static int bitset_stats_op2 PARAMS ((bitset, bitset, enum bitset_ops));
-static int bitset_stats_op3 PARAMS ((bitset, bitset, bitset, enum bitset_ops));
-static int bitset_stats_op4 PARAMS ((bitset, bitset, bitset, bitset,
-				     enum bitset_ops));
-static int bitset_stats_list PARAMS ((bitset, bitset_bindex *, bitset_bindex,
-				      bitset_bindex *));
-static int bitset_stats_reverse_list
-PARAMS ((bitset, bitset_bindex *, bitset_bindex, bitset_bindex *));
-static void bitset_stats_free PARAMS ((bitset));
-static void bitset_percent_histogram_print PARAMS ((FILE *, const char *,
-						    const char *,
-						    unsigned int,
-						    unsigned int *));
-static void bitset_log_histogram_print PARAMS ((FILE *, const char *,
-						const char *,
-						unsigned int,
-						unsigned int *));
-static void bitset_stats_print_1
-PARAMS ((FILE *, const char *, struct bitset_type_info_struct *));
-static void bitset_stats_print PARAMS ((FILE *, int));
+bool bitset_stats_enabled = false;
 
 
 /* Print a percentage histogram with message MSG to FILE.  */
 static void
-bitset_percent_histogram_print (file, name, msg, n_bins, bins)
-     FILE *file;
-     const char *name;
-     const char *msg;
-     unsigned int n_bins;
-     unsigned int *bins;
+bitset_percent_histogram_print (FILE *file, const char *name, const char *msg,
+				unsigned int n_bins, unsigned int *bins)
 {
   unsigned int i;
   unsigned int total;
@@ -164,7 +121,7 @@ bitset_percent_histogram_print (file, name, msg, n_bins, bins)
 
   fprintf (file, "%s %s", name, msg);
   for (i = 0; i < n_bins; i++)
-    fprintf (file, "%.0f-%.0f%%\t%8d (%5.1f%%)\n",
+    fprintf (file, "%.0f-%.0f%%\t%8u (%5.1f%%)\n",
 	     i * 100.0 / n_bins,
 	     (i + 1) * 100.0 / n_bins, bins[i],
 	     (100.0 * bins[i]) / total);
@@ -173,17 +130,12 @@ bitset_percent_histogram_print (file, name, msg, n_bins, bins)
 
 /* Print a log histogram with message MSG to FILE.  */
 static void
-bitset_log_histogram_print (file, name, msg, n_bins, bins)
-     FILE *file;
-     const char *name;
-     const char *msg;
-     unsigned int n_bins;
-     unsigned int *bins;
+bitset_log_histogram_print (FILE *file, const char *name, const char *msg,
+			    unsigned int n_bins, unsigned int *bins)
 {
   unsigned int i;
   unsigned int total;
   unsigned int max_width;
-  unsigned int last_bin;
 
   total = 0;
   for (i = 0; i < n_bins; i++)
@@ -192,51 +144,52 @@ bitset_log_histogram_print (file, name, msg, n_bins, bins)
   if (!total)
     return;
 
+  /* Determine number of useful bins.  */
   for (i = n_bins; i > 3 && ! bins[i - 1]; i--)
      continue;
-  last_bin = i - 1;
+  n_bins = i;
 
   /* 2 * ceil (log10 (2) * (N - 1)) + 1.  */
   max_width = 2 * (unsigned int) (0.30103 * (n_bins - 1) + 0.9999) + 1;
 
   fprintf (file, "%s %s", name, msg);
   for (i = 0; i < 2; i++)
-    fprintf (file, "%*d\t%8d (%5.1f%%)\n",
+    fprintf (file, "%*d\t%8u (%5.1f%%)\n",
 	     max_width, i, bins[i], 100.0 * bins[i] / total);
 
-  for (; i <= last_bin; i++)
-    fprintf (file, "%*d-%d\t%8d (%5.1f%%)\n",
+  for (; i < n_bins; i++)
+    fprintf (file, "%*lu-%lu\t%8u (%5.1f%%)\n",
 	     max_width - ((unsigned int) (0.30103 * (i) + 0.9999) + 1),
-	     1 << (i - 1), (1 << i) - 1, bins[i],
+	     1UL << (i - 1),
+	     (1UL << i) - 1,
+	     bins[i],
 	     (100.0 * bins[i]) / total);
 }
 
 
 /* Print bitset statistics to FILE.  */
 static void
-bitset_stats_print_1 (file, name, stats)
-     FILE *file;
-     const char *name;
-     struct bitset_type_info_struct *stats;
+bitset_stats_print_1 (FILE *file, const char *name,
+		      struct bitset_type_info_struct *stats)
 {
   if (!stats)
     return;
-  
+
   fprintf (file, "%s:\n", name);
-  fprintf (file, _("%d bitset_allocs, %d freed (%.2f%%).\n"),
+  fprintf (file, _("%u bitset_allocs, %u freed (%.2f%%).\n"),
 	   stats->allocs, stats->frees,
 	   stats->allocs ? 100.0 * stats->frees / stats->allocs : 0);
-  fprintf (file, _("%d bitset_sets, %d cached (%.2f%%)\n"),
+  fprintf (file, _("%u bitset_sets, %u cached (%.2f%%)\n"),
 	   stats->sets, stats->cache_sets,
 	   stats->sets ? 100.0 * stats->cache_sets / stats->sets : 0);
-  fprintf (file, _("%d bitset_resets, %d cached (%.2f%%)\n"),
+  fprintf (file, _("%u bitset_resets, %u cached (%.2f%%)\n"),
 	   stats->resets, stats->cache_resets,
 	   stats->resets ? 100.0 * stats->cache_resets / stats->resets : 0);
-  fprintf (file, _("%d bitset_tests, %d cached (%.2f%%)\n"),
+  fprintf (file, _("%u bitset_tests, %u cached (%.2f%%)\n"),
 	   stats->tests, stats->cache_tests,
 	   stats->tests ? 100.0 * stats->cache_tests / stats->tests : 0);
 
-  fprintf (file, _("%d bitset_lists\n"), stats->lists);
+  fprintf (file, _("%u bitset_lists\n"), stats->lists);
 
   bitset_log_histogram_print (file, name, _("count log histogram\n"),
 			      BITSET_LOG_COUNT_BINS, stats->list_counts);
@@ -251,12 +204,9 @@ bitset_stats_print_1 (file, name, stats)
 
 /* Print all bitset statistics to FILE.  */
 static void
-bitset_stats_print (file, verbose)
-     FILE *file;
-     int verbose ATTRIBUTE_UNUSED;
+bitset_stats_print (FILE *file, bool verbose ATTRIBUTE_UNUSED)
 {
   int i;
-  static const char *names[] = BITSET_TYPE_NAMES;
 
   if (!bitset_stats_info)
     return;
@@ -264,40 +214,40 @@ bitset_stats_print (file, verbose)
   fprintf (file, _("Bitset statistics:\n\n"));
 
   if (bitset_stats_info->runs > 1)
-    fprintf (file, _("Accumulated runs = %d\n"), bitset_stats_info->runs);
+    fprintf (file, _("Accumulated runs = %u\n"), bitset_stats_info->runs);
 
   for (i = 0; i < BITSET_TYPE_NUM; i++)
-    bitset_stats_print_1 (file, names[i], &bitset_stats_info->types[i]);
+    bitset_stats_print_1 (file, bitset_type_names[i],
+			  &bitset_stats_info->types[i]);
 }
 
 
 /* Initialise bitset statistics logging.  */
 void
-bitset_stats_enable ()
+bitset_stats_enable (void)
 {
   if (!bitset_stats_info)
     bitset_stats_info = &bitset_stats_info_data;
-  bitset_stats_enabled = 1;
+  bitset_stats_enabled = true;
 }
 
 
 void
-bitset_stats_disable ()
+bitset_stats_disable (void)
 {
-  bitset_stats_enabled = 0;
+  bitset_stats_enabled = false;
 }
 
 
 /* Read bitset statistics file.  */
 void
-bitset_stats_read (filename)
-     const char *filename;
+bitset_stats_read (const char *filename)
 {
   FILE *file;
 
   if (!bitset_stats_info)
     return;
-  
+
   if (!filename)
     filename = BITSET_STATS_FILE;
 
@@ -312,7 +262,8 @@ bitset_stats_read (filename)
 	  else
 	    fprintf (stderr, _("Bad stats file size.\n"));
 	}
-      fclose (file);
+      if (fclose (file) != 0)
+	perror (_("Could not read stats file."));
     }
   bitset_stats_info_data.runs++;
 }
@@ -320,8 +271,7 @@ bitset_stats_read (filename)
 
 /* Write bitset statistics file.  */
 void
-bitset_stats_write (filename)
-     const char *filename;
+bitset_stats_write (const char *filename)
 {
   FILE *file;
 
@@ -337,7 +287,8 @@ bitset_stats_write (filename)
       if (fwrite (&bitset_stats_info_data, sizeof (bitset_stats_info_data),
 		  1, file) != 1)
 	perror (_("Could not write stats file."));
-      fclose (file);
+      if (fclose (file) != 0)
+	perror (_("Could not write stats file."));
     }
   else
     perror (_("Could not open stats file for writing."));
@@ -346,10 +297,9 @@ bitset_stats_write (filename)
 
 /* Dump bitset statistics to FILE.  */
 void
-bitset_stats_dump (file)
-     FILE *file;
+bitset_stats_dump (FILE *file)
 {
-  bitset_stats_print (file, 0);
+  bitset_stats_print (file, false);
 }
 
 
@@ -357,19 +307,17 @@ bitset_stats_dump (file)
 void
 debug_bitset_stats (void)
 {
-  bitset_stats_print (stderr, 1);
+  bitset_stats_print (stderr, true);
 }
 
 
 static void
-bitset_stats_set (dst, bitno)
-     bitset dst;
-     bitset_bindex bitno;
+bitset_stats_set (bitset dst, bitset_bindex bitno)
 {
   bitset bset = dst->s.bset;
   bitset_windex wordno = bitno / BITSET_WORD_BITS;
   bitset_windex offset = wordno - bset->b.cindex;
-  
+
   BITSET_STATS_SETS_INC (bset);
 
   if (offset < bset->b.csize)
@@ -383,14 +331,12 @@ bitset_stats_set (dst, bitno)
 
 
 static void
-bitset_stats_reset (dst, bitno)
-     bitset dst;
-     bitset_bindex bitno;
+bitset_stats_reset (bitset dst, bitset_bindex bitno)
 {
   bitset bset = dst->s.bset;
   bitset_windex wordno = bitno / BITSET_WORD_BITS;
   bitset_windex offset = wordno - bset->b.cindex;
-  
+
   BITSET_STATS_RESETS_INC (bset);
 
   if (offset < bset->b.csize)
@@ -404,17 +350,22 @@ bitset_stats_reset (dst, bitno)
 }
 
 
-static int
-bitset_stats_test (src, bitno)
-     bitset src;
-     bitset_bindex bitno;
+static bool
+bitset_stats_toggle (bitset src, bitset_bindex bitno)
+{
+    return BITSET_TOGGLE_ (src->s.bset, bitno);
+}
+
+
+static bool
+bitset_stats_test (bitset src, bitset_bindex bitno)
 {
   bitset bset = src->s.bset;
   bitset_windex wordno = bitno / BITSET_WORD_BITS;
   bitset_windex offset = wordno - bset->b.cindex;
 
   BITSET_STATS_TESTS_INC (bset);
-  
+
   if (offset < bset->b.csize)
     {
       BITSET_STATS_CACHE_TESTS_INC (bset);
@@ -425,74 +376,203 @@ bitset_stats_test (src, bitno)
 }
 
 
-static int
-bitset_stats_size (src)
-     bitset src;
+static bitset_bindex
+bitset_stats_resize (bitset src, bitset_bindex size)
+{
+    return BITSET_RESIZE_ (src->s.bset, size);
+}
+
+
+static bitset_bindex
+bitset_stats_size (bitset src)
 {
   return BITSET_SIZE_ (src->s.bset);
 }
 
 
-static int
-bitset_stats_op1 (dst, op)
-     bitset dst;
-     enum bitset_ops op;
+static bitset_bindex
+bitset_stats_count (bitset src)
+{
+  return BITSET_COUNT_ (src->s.bset);
+}
+
+
+static bool
+bitset_stats_empty_p (bitset dst)
+{
+  return BITSET_EMPTY_P_ (dst->s.bset);
+}
+
+
+static void
+bitset_stats_ones (bitset dst)
+{
+  BITSET_ONES_ (dst->s.bset);
+}
+
+
+static void
+bitset_stats_zero (bitset dst)
 {
-  return BITSET_OP1_ (dst->s.bset, op);
+  BITSET_ZERO_ (dst->s.bset);
 }
 
 
-static int
-bitset_stats_op2 (dst, src, op)
-     bitset dst;
-     bitset src;
-     enum bitset_ops op;
+static void
+bitset_stats_copy (bitset dst, bitset src)
 {
   BITSET_CHECK2_ (dst, src);
-  return BITSET_OP2_ (dst->s.bset, src->s.bset, op);
+  BITSET_COPY_ (dst->s.bset, src->s.bset);
 }
 
 
-static int
-bitset_stats_op3 (dst, src1, src2, op)
-     bitset dst;
-     bitset src1;
-     bitset src2;
-     enum bitset_ops op;
+static bool
+bitset_stats_disjoint_p (bitset dst, bitset src)
+{
+  BITSET_CHECK2_ (dst, src);
+  return BITSET_DISJOINT_P_ (dst->s.bset, src->s.bset);
+}
+
+
+static bool
+bitset_stats_equal_p (bitset dst, bitset src)
+{
+  BITSET_CHECK2_ (dst, src);
+  return BITSET_EQUAL_P_ (dst->s.bset, src->s.bset);
+}
+
+
+static void
+bitset_stats_not (bitset dst, bitset src)
+{
+  BITSET_CHECK2_ (dst, src);
+  BITSET_NOT_ (dst->s.bset, src->s.bset);
+}
+
+
+static bool
+bitset_stats_subset_p (bitset dst, bitset src)
+{
+  BITSET_CHECK2_ (dst, src);
+  return BITSET_SUBSET_P_ (dst->s.bset, src->s.bset);
+}
+
+
+static void
+bitset_stats_and (bitset dst, bitset src1, bitset src2)
 {
   BITSET_CHECK3_ (dst, src1, src2);
-  return BITSET_OP3_ (dst->s.bset, src1->s.bset, src2->s.bset, op);
+  BITSET_AND_ (dst->s.bset, src1->s.bset, src2->s.bset);
 }
 
 
-static int
-bitset_stats_op4 (dst, src1, src2, src3, op)
-     bitset dst;
-     bitset src1;
-     bitset src2;
-     bitset src3;
-     enum bitset_ops op;
+static bool
+bitset_stats_and_cmp (bitset dst, bitset src1, bitset src2)
+{
+  BITSET_CHECK3_ (dst, src1, src2);
+  return BITSET_AND_CMP_ (dst->s.bset, src1->s.bset, src2->s.bset);
+}
+
+
+static void
+bitset_stats_andn (bitset dst, bitset src1, bitset src2)
+{
+  BITSET_CHECK3_ (dst, src1, src2);
+  BITSET_ANDN_ (dst->s.bset, src1->s.bset, src2->s.bset);
+}
+
+
+static bool
+bitset_stats_andn_cmp (bitset dst, bitset src1, bitset src2)
+{
+  BITSET_CHECK3_ (dst, src1, src2);
+  return BITSET_ANDN_CMP_ (dst->s.bset, src1->s.bset, src2->s.bset);
+}
+
+
+static void
+bitset_stats_or (bitset dst, bitset src1, bitset src2)
+{
+  BITSET_CHECK3_ (dst, src1, src2);
+  BITSET_OR_ (dst->s.bset, src1->s.bset, src2->s.bset);
+}
+
+
+static bool
+bitset_stats_or_cmp (bitset dst, bitset src1, bitset src2)
+{
+  BITSET_CHECK3_ (dst, src1, src2);
+  return BITSET_OR_CMP_ (dst->s.bset, src1->s.bset, src2->s.bset);
+}
+
+
+static void
+bitset_stats_xor (bitset dst, bitset src1, bitset src2)
+{
+  BITSET_CHECK3_ (dst, src1, src2);
+  BITSET_XOR_ (dst->s.bset, src1->s.bset, src2->s.bset);
+}
+
+
+static bool
+bitset_stats_xor_cmp (bitset dst, bitset src1, bitset src2)
+{
+  BITSET_CHECK3_ (dst, src1, src2);
+  return BITSET_XOR_CMP_ (dst->s.bset, src1->s.bset, src2->s.bset);
+}
+
+
+static void
+bitset_stats_and_or (bitset dst, bitset src1, bitset src2, bitset src3)
 {
   BITSET_CHECK4_ (dst, src1, src2, src3);
+  BITSET_AND_OR_ (dst->s.bset, src1->s.bset, src2->s.bset, src3->s.bset);
+}
 
-  /* This is a bit of a hack.  If the implementation handles
-     a four operand operation then vector to it, passing
-     the enclosed bitsets.  Otherwise use the fallback 
-     bitset_op4 routine.  */
-  if (dst->s.bset->b.ops->op4 != bitset_op4)
-     return BITSET_OP4_ (dst->s.bset, src1->s.bset, src2->s.bset,
-			 src3->s.bset, op);
 
-  return bitset_op4 (dst, src1, src2, src3, op);
+static bool
+bitset_stats_and_or_cmp (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+  BITSET_CHECK4_ (dst, src1, src2, src3);
+  return BITSET_AND_OR_CMP_ (dst->s.bset, src1->s.bset, src2->s.bset, src3->s.bset);
+}
+
+
+static void
+bitset_stats_andn_or (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+  BITSET_CHECK4_ (dst, src1, src2, src3);
+  BITSET_ANDN_OR_ (dst->s.bset, src1->s.bset, src2->s.bset, src3->s.bset);
+}
+
+
+static bool
+bitset_stats_andn_or_cmp (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+  BITSET_CHECK4_ (dst, src1, src2, src3);
+  return BITSET_ANDN_OR_CMP_ (dst->s.bset, src1->s.bset, src2->s.bset, src3->s.bset);
+}
+
+
+static void
+bitset_stats_or_and (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+  BITSET_CHECK4_ (dst, src1, src2, src3);
+  BITSET_OR_AND_ (dst->s.bset, src1->s.bset, src2->s.bset, src3->s.bset);
+}
+
+
+static bool
+bitset_stats_or_and_cmp (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+  BITSET_CHECK4_ (dst, src1, src2, src3);
+  return BITSET_OR_AND_CMP_ (dst->s.bset, src1->s.bset, src2->s.bset, src3->s.bset);
 }
 
 
-static int
-bitset_stats_list (bset, list, num, next)
-     bitset bset;
-     bitset_bindex *list;
-     bitset_bindex num;
-     bitset_bindex *next;
+static bitset_bindex
+bitset_stats_list (bitset bset, bitset_bindex *list,
+		   bitset_bindex num, bitset_bindex *next)
 {
   bitset_bindex count;
   bitset_bindex tmp;
@@ -501,17 +581,17 @@ bitset_stats_list (bset, list, num, next)
   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.  */
   for (i = 0, tmp = count; tmp; tmp >>= 1, i++)
      continue;
   if (i >= BITSET_LOG_COUNT_BINS)
      i = BITSET_LOG_COUNT_BINS - 1;
   BITSET_STATS_LIST_COUNTS_INC (bset->s.bset, i);
-  
+
   /* Log histogram of number of bits in set.  */
   size = BITSET_SIZE_ (bset->s.bset);
   for (i = 0, tmp = size; tmp; tmp >>= 1, i++)
@@ -519,7 +599,7 @@ bitset_stats_list (bset, list, num, next)
   if (i >= BITSET_LOG_SIZE_BINS)
      i = BITSET_LOG_SIZE_BINS - 1;
   BITSET_STATS_LIST_SIZES_INC (bset->s.bset, i);
-  
+
   /* Histogram of fraction of bits set.  */
   i = size ? (count * BITSET_DENSITY_BINS) / size : 0;
   if (i >= BITSET_DENSITY_BINS)
@@ -529,37 +609,54 @@ bitset_stats_list (bset, list, num, next)
 }
 
 
-static int
-bitset_stats_reverse_list (bset, list, num, next)
-     bitset bset;
-     bitset_bindex *list;
-     bitset_bindex num;
-     bitset_bindex *next;
+static bitset_bindex
+bitset_stats_list_reverse (bitset bset, bitset_bindex *list,
+			   bitset_bindex num, bitset_bindex *next)
 {
-  return BITSET_REVERSE_LIST_ (bset->s.bset, list, num, next);
+  return BITSET_LIST_REVERSE_ (bset->s.bset, list, num, next);
 }
 
 
 static void
-bitset_stats_free (bset)
-     bitset bset;
+bitset_stats_free (bitset bset)
 {
   BITSET_STATS_FREES_INC (bset->s.bset);
   BITSET_FREE_ (bset->s.bset);
 }
 
 
-struct bitset_ops_struct bitset_stats_ops = {
+struct bitset_vtable bitset_stats_vtable = {
   bitset_stats_set,
   bitset_stats_reset,
+  bitset_stats_toggle,
   bitset_stats_test,
+  bitset_stats_resize,
   bitset_stats_size,
-  bitset_stats_op1,
-  bitset_stats_op2,
-  bitset_stats_op3,
-  bitset_stats_op4,
+  bitset_stats_count,
+  bitset_stats_empty_p,
+  bitset_stats_ones,
+  bitset_stats_zero,
+  bitset_stats_copy,
+  bitset_stats_disjoint_p,
+  bitset_stats_equal_p,
+  bitset_stats_not,
+  bitset_stats_subset_p,
+  bitset_stats_and,
+  bitset_stats_and_cmp,
+  bitset_stats_andn,
+  bitset_stats_andn_cmp,
+  bitset_stats_or,
+  bitset_stats_or_cmp,
+  bitset_stats_xor,
+  bitset_stats_xor_cmp,
+  bitset_stats_and_or,
+  bitset_stats_and_or_cmp,
+  bitset_stats_andn_or,
+  bitset_stats_andn_or_cmp,
+  bitset_stats_or_and,
+  bitset_stats_or_and_cmp,
   bitset_stats_list,
-  bitset_stats_reverse_list,
+  bitset_stats_list_reverse,
   bitset_stats_free,
   BITSET_STATS
 };
@@ -567,35 +664,34 @@ struct bitset_ops_struct bitset_stats_ops = {
 
 /* Return enclosed bitset type.  */
 enum bitset_type
-bitset_stats_type_get (bset)
-   bitset bset;
+bitset_stats_type_get (bitset bset)
 {
    return BITSET_TYPE_ (bset->s.bset);
 }
 
 
-int bitset_stats_bytes (void)
+size_t
+bitset_stats_bytes (void)
 {
-  return sizeof (struct bitset_struct);
+  return sizeof (struct bitset_stats_struct);
 }
 
 
 bitset
-bitset_stats_init (bset, n_bits, type)
-     bitset bset;
-     bitset_bindex n_bits;
-     enum bitset_type type;
+bitset_stats_init (bitset bset, bitset_bindex n_bits, enum bitset_type type)
 {
-  unsigned int bytes;
+  size_t bytes;
   bitset sbset;
 
-  bset->b.ops = &bitset_stats_ops;
+  bset->b.vtable = &bitset_stats_vtable;
 
   /* Disable cache.  */
   bset->b.cindex = 0;
   bset->b.csize = 0;
   bset->b.cdata = 0;
 
+  BITSET_NBITS_ (bset) = n_bits;
+
   /* Set up the actual bitset implementation that
      we are a wrapper over.  */
   switch (type)
@@ -618,6 +714,12 @@ bitset_stats_init (bset, n_bits, type)
       ebitset_init (sbset, n_bits);
       break;
 
+    case BITSET_VARRAY:
+      bytes = vbitset_bytes (n_bits);
+      sbset = (bitset) xcalloc (1, bytes);
+      vbitset_init (sbset, n_bits);
+      break;
+
     default:
       abort ();
     }
@@ -625,6 +727,6 @@ bitset_stats_init (bset, n_bits, type)
   bset->s.bset = sbset;
 
   BITSET_STATS_ALLOCS_INC (type);
-  
+
   return bset;
 }