* Makefile.maint: Merge from coreutils.

[bison.git] / lib / bitset.h

diff --git a/lib/bitset.h b/lib/bitset.h
index 06427c38f6411b562e368682da1f3dfc47d35282..45c8818cc99c0eaa26041e95b0c30fbd8f1582f0 100644 (file)
--- a/lib/bitset.h
+++ b/lib/bitset.h
@@ -1,5 +1,5 @@
 /* Generic bitsets.
 /* Generic bitsets.

-   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
    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 @@ 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
 
 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */

 
 #ifndef _BITSET_H
 #define _BITSET_H
 
 #ifndef _BITSET_H
 #define _BITSET_H


@@ -26,6 +26,10 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 #include "obstack.h"
 #include <stdio.h>
 
 #include "obstack.h"
 #include <stdio.h>
 

+#if USE_UNLOCKED_IO
+# include "unlocked-io.h"
+#endif
+

 /* Attributes used to select a bitset implementation.  */
 enum bitset_attr {BITSET_FIXED = 1,    /* Bitset size fixed.  */
                  BITSET_VARIABLE = 2, /* Bitset size variable.  */
 /* Attributes used to select a bitset implementation.  */
 enum bitset_attr {BITSET_FIXED = 1,    /* Bitset size fixed.  */
                  BITSET_VARIABLE = 2, /* Bitset size variable.  */


@@ -44,12 +48,11 @@ union bitset_union
 {
   /* This must be the first member of every other structure that is a
      member of this union.  */
 {
   /* This must be the first member of every other structure that is a
      member of this union.  */

-  struct bbitset_struct b;
+  struct bbitset_struct b;             /* Base bitset data.  */

 
   struct abitset_struct
   {
     struct bbitset_struct b;
 
   struct abitset_struct
   {
     struct bbitset_struct b;

-    bitset_bindex n_bits;              /* Number of bits.  */

     bitset_word words[1];              /* The array of bits.  */
   } a;
 
     bitset_word words[1];              /* The array of bits.  */
   } a;
 


@@ -72,6 +75,13 @@ union bitset_union
     struct bbitset_struct b;
     bitset bset;
   } s;
     struct bbitset_struct b;
     bitset bset;
   } s;

+
+  struct vbitset_struct
+  {
+    struct bbitset_struct b;
+    bitset_windex size;                        /* Allocated size of array.  */
+  } v;
+

 };
 
 
 };
 
 


@@ -87,47 +97,45 @@ typedef struct
 
 
 /* Return bytes required for bitset of desired type and size.  */
 
 
 /* Return bytes required for bitset of desired type and size.  */

-extern size_t bitset_bytes PARAMS ((enum bitset_type, bitset_bindex));
+extern size_t bitset_bytes (enum bitset_type, bitset_bindex);

 
 /* Initialise a bitset with desired type and size.  */
 
 /* Initialise a bitset with desired type and size.  */

-extern bitset bitset_init PARAMS ((bitset, bitset_bindex, enum bitset_type));
+extern bitset bitset_init (bitset, bitset_bindex, enum bitset_type);

 
 /* Select an implementation type based on the desired bitset size
    and attributes.  */
 
 /* Select an implementation type based on the desired bitset size
    and attributes.  */

-extern enum bitset_type bitset_type_choose PARAMS ((bitset_bindex,
-                                                   bitset_attrs));
+extern enum bitset_type bitset_type_choose (bitset_bindex, bitset_attrs);

 
 /* Create a bitset of desired type and size.  The bitset is zeroed.  */
 
 /* Create a bitset of desired type and size.  The bitset is zeroed.  */

-extern bitset bitset_alloc PARAMS ((bitset_bindex, enum bitset_type));
+extern bitset bitset_alloc (bitset_bindex, enum bitset_type);

 
 /* Free bitset.  */
 
 /* Free bitset.  */

-extern void bitset_free PARAMS ((bitset));
+extern void bitset_free (bitset);

 
 /* Create a bitset of desired type and size using an obstack.  The
    bitset is zeroed.  */
 
 /* Create a bitset of desired type and size using an obstack.  The
    bitset is zeroed.  */

-extern bitset bitset_obstack_alloc PARAMS ((struct obstack *bobstack,
-                                           bitset_bindex, enum bitset_type));
+extern bitset bitset_obstack_alloc (struct obstack *bobstack,
+                                   bitset_bindex, enum bitset_type);

 
 /* Free bitset allocated on obstack.  */
 
 /* Free bitset allocated on obstack.  */

-extern void bitset_obstack_free PARAMS ((bitset));
+extern void bitset_obstack_free (bitset);

 
 /* Create a bitset of desired size and attributes.  The bitset is zeroed.  */
 
 /* Create a bitset of desired size and attributes.  The bitset is zeroed.  */

-extern bitset bitset_create PARAMS ((bitset_bindex, bitset_attrs));
+extern bitset bitset_create (bitset_bindex, bitset_attrs);

 
 /* Return bitset type.  */
 
 /* Return bitset type.  */

-extern enum bitset_type bitset_type_get PARAMS ((bitset));
+extern enum bitset_type bitset_type_get (bitset);

 
 /* Return bitset type name.  */
 
 /* Return bitset type name.  */

-extern const char *bitset_type_name_get PARAMS ((bitset));
+extern const char *bitset_type_name_get (bitset);

 
 

-#if BITSET_INLINE

 
 /* Set bit BITNO in bitset BSET.  */
 static inline void
 bitset_set (bitset bset, bitset_bindex bitno)
 {
 
 /* Set bit BITNO in bitset BSET.  */
 static inline void
 bitset_set (bitset bset, bitset_bindex bitno)
 {

-  bitset_windex index = bitno / BITSET_WORD_BITS;
-  bitset_windex offset = index - bset->b.cindex;
+  bitset_windex windex = bitno / BITSET_WORD_BITS;
+  bitset_windex offset = windex - bset->b.cindex;

 
   if (offset < bset->b.csize)
     bset->b.cdata[offset] |= ((bitset_word) 1 << (bitno % BITSET_WORD_BITS));
 
   if (offset < bset->b.csize)
     bset->b.cdata[offset] |= ((bitset_word) 1 << (bitno % BITSET_WORD_BITS));


@@ -140,8 +148,8 @@ bitset_set (bitset bset, bitset_bindex bitno)
 static inline void
 bitset_reset (bitset bset, bitset_bindex bitno)
 {
 static inline void
 bitset_reset (bitset bset, bitset_bindex bitno)
 {

-  bitset_windex index = bitno / BITSET_WORD_BITS;
-  bitset_windex offset = index - bset->b.cindex;
+  bitset_windex windex = bitno / BITSET_WORD_BITS;
+  bitset_windex offset = windex - bset->b.cindex;

 
   if (offset < bset->b.csize)
     bset->b.cdata[offset] &= ~((bitset_word) 1 << (bitno % BITSET_WORD_BITS));
 
   if (offset < bset->b.csize)
     bset->b.cdata[offset] &= ~((bitset_word) 1 << (bitno % BITSET_WORD_BITS));


@@ -151,60 +159,17 @@ bitset_reset (bitset bset, bitset_bindex bitno)
 
 
 /* Test bit BITNO in bitset BSET.  */
 
 
 /* Test bit BITNO in bitset BSET.  */

-static inline int
+static inline bool

 bitset_test (bitset bset, bitset_bindex bitno)
 {
 bitset_test (bitset bset, bitset_bindex bitno)
 {

-  bitset_windex index = bitno / BITSET_WORD_BITS;
-  bitset_windex offset = index - bset->b.cindex;
+  bitset_windex windex = bitno / BITSET_WORD_BITS;
+  bitset_windex offset = windex - bset->b.cindex;

 
   if (offset < bset->b.csize)
     return (bset->b.cdata[offset] >> (bitno % BITSET_WORD_BITS)) & 1;
   else
     return BITSET_TEST_ (bset, bitno);
 }
 
   if (offset < bset->b.csize)
     return (bset->b.cdata[offset] >> (bitno % BITSET_WORD_BITS)) & 1;
   else
     return BITSET_TEST_ (bset, bitno);
 }

-#endif
-
-#if ! BITSET_INLINE
-
-/* Set bit BITNO in bitset BSET.  */
-#define bitset_set(bset, bitno)                                        \
-do                                                             \
-{                                                              \
-  bitset_bindex _bitno = (bitno);                              \
-  bitset_windex _index = _bitno / BITSET_WORD_BITS;            \
-  bitset_windex _offset = _index - (bset)->b.cindex;           \
-                                                               \
-  if (_offset < (bset)->b.csize)                                       \
-    (bset)->b.cdata[_offset] |=                                        \
-      ((bitset_word) 1 << (_bitno % BITSET_WORD_BITS));        \
-  else                                                         \
-    BITSET_SET_ ((bset), _bitno);                              \
-} while (0)
-
-
-/* Reset bit BITNO in bitset BSET.  */
-#define bitset_reset(bset, bitno)                              \
-do                                                             \
-{                                                              \
-  bitset_bindex _bitno = (bitno);                              \
-  bitset_windex _index = _bitno / BITSET_WORD_BITS;            \
-  bitset_windex _offset = _index - (bset)->b.cindex;           \
-                                                               \
-  if (_offset < (bset)->b.csize)                               \
-    (bset)->b.cdata[_offset] &=                                        \
-       ~((bitset_word) 1 << (_bitno % BITSET_WORD_BITS));      \
-  else                                                         \
-    BITSET_RESET_ ((bset), _bitno);                            \
-} while (0)
-
-
-/* Test bit BITNO in bitset BSET.  */
-#define bitset_test(bset, bitno) \
-(((((bitno) / BITSET_WORD_BITS) - (bset)->b.cindex) < (bset)->b.csize)  \
-  ? ((bset)->b.cdata[(((bitno) / BITSET_WORD_BITS) - (bset)->b.cindex)] \
-     >> ((bitno) % BITSET_WORD_BITS)) & 1 \
-  : (unsigned int) BITSET_TEST_ ((bset), (bitno)))
-#endif

 
 
 /* Toggle bit BITNO in bitset BSET and return non-zero if now set.  */
 
 
 /* Toggle bit BITNO in bitset BSET and return non-zero if now set.  */


@@ -213,6 +178,9 @@ do                                                                  \
 /* Return size in bits of bitset SRC.  */
 #define bitset_size(SRC) BITSET_SIZE_ (SRC)
 
 /* Return size in bits of bitset SRC.  */
 #define bitset_size(SRC) BITSET_SIZE_ (SRC)
 

+/* Change size of bitset.  */
+extern void bitset_resize (bitset, bitset_bindex);
+

 /* Return number of bits set in bitset SRC.  */
 #define bitset_count(SRC) BITSET_COUNT_ (SRC)
 
 /* Return number of bits set in bitset SRC.  */
 #define bitset_count(SRC) BITSET_COUNT_ (SRC)
 


@@ -310,65 +278,69 @@ do                                                                \
 #define bitset_list_reverse(BSET, LIST, NUM, NEXT) \
  BITSET_LIST_REVERSE_ (BSET, LIST, NUM, NEXT)
 
 #define bitset_list_reverse(BSET, LIST, NUM, NEXT) \
  BITSET_LIST_REVERSE_ (BSET, LIST, NUM, NEXT)
 

+/* Return true if both bitsets are of the same type and size.  */
+extern bool bitset_compatible_p (bitset bset1, bitset bset2);

 
 

-/* Find next set bit.  */
-extern bitset_bindex bitset_next PARAMS ((bitset, bitset_bindex));
+/* Find next set bit from the given bit index.  */
+extern bitset_bindex bitset_next (bitset, bitset_bindex);

 
 

-/* Find previous set bit.  */
-extern bitset_bindex bitset_prev PARAMS ((bitset, bitset_bindex));
+/* Find previous set bit from the given bit index.  */
+extern bitset_bindex bitset_prev (bitset, bitset_bindex);

 
 /* Find first set bit.  */
 
 /* Find first set bit.  */

-extern bitset_bindex bitset_first PARAMS ((bitset));
+extern bitset_bindex bitset_first (bitset);

 
 /* Find last set bit.  */
 
 /* Find last set bit.  */

-extern bitset_bindex bitset_last PARAMS ((bitset));
+extern bitset_bindex bitset_last (bitset);

 
 /* Return nonzero if this is the only set bit.  */
 
 /* Return nonzero if this is the only set bit.  */

-extern int bitset_only_set_p PARAMS ((bitset, bitset_bindex));
+extern bool bitset_only_set_p (bitset, bitset_bindex);

 
 /* Dump bitset.  */
 
 /* Dump bitset.  */

-extern void bitset_dump PARAMS ((FILE *, bitset));
+extern void bitset_dump (FILE *, bitset);

 
 

-/* Loop over all elements of BSET, starting with MIN, setting BIT
+/* Loop over all elements of BSET, starting with MIN, setting INDEX

    to the index of each set bit.  For example, the following will print
    the bits set in a bitset:
 
    bitset_bindex i;
    bitset_iterator iter;
 
    to the index of each set bit.  For example, the following will print
    the bits set in a bitset:
 
    bitset_bindex i;
    bitset_iterator iter;
 

-   bitset_zero (dst);

    BITSET_FOR_EACH (iter, src, i, 0)
    {
    BITSET_FOR_EACH (iter, src, i, 0)
    {

-      printf ("%ld ", i);
+      printf ("%lu ", (unsigned long int) i);

    };
 */
    };
 */

-#define BITSET_FOR_EACH(ITER, BSET, BIT, MIN)                                \
+#define BITSET_FOR_EACH(ITER, BSET, INDEX, MIN)                                      \

   for (ITER.next = (MIN), ITER.num = BITSET_LIST_SIZE;                       \
   for (ITER.next = (MIN), ITER.num = BITSET_LIST_SIZE;                       \

-       (ITER.num == BITSET_LIST_SIZE)                                        \
-       && (ITER.num = bitset_list (BSET, ITER.list,                          \
+       (ITER.num == BITSET_LIST_SIZE)                                        \
+       && (ITER.num = bitset_list (BSET, ITER.list,                          \

                                   BITSET_LIST_SIZE, &ITER.next));)           \
                                   BITSET_LIST_SIZE, &ITER.next));)           \

-    for (ITER.i = 0; (BIT) = ITER.list[ITER.i], ITER.i < ITER.num; ITER.i++)
+    for (ITER.i = 0;                                                         \
+        ITER.i < ITER.num && ((INDEX) = ITER.list[ITER.i], 1);               \
+        ITER.i++)

 
 
 /* Loop over all elements of BSET, in reverse order starting with
 
 
 /* Loop over all elements of BSET, in reverse order starting with

-   MIN,  setting BIT to the index of each set bit. For example, the
+   MIN, setting INDEX to the index of each set bit.  For example, the

    following will print the bits set in a bitset in reverse order:
 
    bitset_bindex i;
    bitset_iterator iter;
 
    following will print the bits set in a bitset in reverse order:
 
    bitset_bindex i;
    bitset_iterator iter;
 

-   bitset_zero (dst);

    BITSET_FOR_EACH_REVERSE (iter, src, i, 0)
    {
    BITSET_FOR_EACH_REVERSE (iter, src, i, 0)
    {

-      printf ("%ld ", i);
+      printf ("%lu ", (unsigned long int) i);

    };
 */
    };
 */

-#define BITSET_FOR_EACH_REVERSE(ITER, BSET, BIT, MIN)                        \
+#define BITSET_FOR_EACH_REVERSE(ITER, BSET, INDEX, MIN)                              \

   for (ITER.next = (MIN), ITER.num = BITSET_LIST_SIZE;                       \
   for (ITER.next = (MIN), ITER.num = BITSET_LIST_SIZE;                       \

-       (ITER.num == BITSET_LIST_SIZE)                                        \
+       (ITER.num == BITSET_LIST_SIZE)                                        \

        && (ITER.num = bitset_list_reverse (BSET, ITER.list,                  \
        && (ITER.num = bitset_list_reverse (BSET, ITER.list,                  \

-                                         BITSET_LIST_SIZE, &ITER.next));)    \
-    for (ITER.i = 0; (BIT) = ITER.list[ITER.i], ITER.i < ITER.num; ITER.i++)
+                                          BITSET_LIST_SIZE, &ITER.next));)   \
+    for (ITER.i = 0;                                                         \
+        ITER.i < ITER.num && ((INDEX) = ITER.list[ITER.i], 1);               \
+        ITER.i++)

 
 
 /* Define set operations in terms of logical operations.  */
 
 
 /* Define set operations in terms of logical operations.  */


@@ -393,30 +365,28 @@ extern void bitset_dump PARAMS ((FILE *, bitset));
   bitset_andn_or_cmp (DST, SRC1, SRC2, SRC3)
 
 
   bitset_andn_or_cmp (DST, SRC1, SRC2, SRC3)
 
 

-

 /* Release any memory tied up with bitsets.  */
 /* Release any memory tied up with bitsets.  */

-extern void bitset_release_memory PARAMS ((void));
+extern void bitset_release_memory (void);

 
 /* Enable bitset stats gathering.  */
 
 /* Enable bitset stats gathering.  */

-extern void bitset_stats_enable PARAMS ((void));
+extern void bitset_stats_enable (void);

 
 /* Disable bitset stats gathering.  */
 
 /* Disable bitset stats gathering.  */

-extern void bitset_stats_disable PARAMS ((void));
+extern void bitset_stats_disable (void);

 
 /* Read bitset stats file of accummulated stats.  */
 
 /* Read bitset stats file of accummulated stats.  */

-void bitset_stats_read PARAMS ((const char *filename));
+void bitset_stats_read (const char *file_name);

 
 /* Write bitset stats file of accummulated stats.  */
 
 /* Write bitset stats file of accummulated stats.  */

-void bitset_stats_write PARAMS ((const char *filename));
+void bitset_stats_write (const char *file_name);

 
 /* Dump bitset stats.  */
 
 /* Dump bitset stats.  */

-extern void bitset_stats_dump PARAMS ((FILE *));
+extern void bitset_stats_dump (FILE *);

 
 /* Function to debug bitset from debugger.  */
 
 /* Function to debug bitset from debugger.  */

-extern void debug_bitset PARAMS ((bitset));
+extern void debug_bitset (bitset);

 
 /* Function to debug bitset stats from debugger.  */
 
 /* Function to debug bitset stats from debugger.  */

-extern void debug_bitset_stats PARAMS ((void));
+extern void debug_bitset_stats (void);

 
 #endif /* _BITSET_H  */
 
 #endif /* _BITSET_H  */

-