merge from gcc

2 files changed, 106 insertions, 60 deletions

diff --git a/include/ChangeLog b/include/ChangeLog
index 0d0ebf3d287..0fa1c220a12 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,30 @@
+2000-03-14  Bernd Schmidt  <bernds@cygnus.co.uk>
+
+	* hashtab.h (htab_trav): Modify type so that first arg is of type
+	void **.
+	(htab_find_with_hash, htab_find_slot_with_hash): Declare new
+	functions.
+
+2000-03-09  Alex Samuel  <samuel@codesourcery.com>
+
+	* partition.h: New file.
+
+2000-03-09  Zack Weinberg  <zack@wolery.cumb.org>
+
+	* hashtab.h (struct htab): Add del_f.
+	(htab_del): New type.
+	(htab_create): Add fourth argument.
+
+2000-03-08  Zack Weinberg  <zack@wolery.cumb.org>
+
+	* hashtab.h (hash_table_t): Rename to htab_t.
+	(struct hash_table): Rename to struct htab.  Shorten element
+	names.  Reorder elements by size.
+	(htab_hash, htab_eq, htab_trav): New typedefs for the callback
+	function pointers.
+	(hash_table_entry_t): Discard; just use void * for element
+	type.
+
 2000-03-01  H.J. Lu  <hjl@gnu.org>
 
 	* bfdlink.h (bfd_link_callbacks): Add a boolean arg to
@@ -85,7 +112,7 @@ Wed Dec 15 11:22:56 1999  Jeffrey A Law  (law@cygnus.com)
 	(asprintf, vasprintf): Provide declarations.
 
 Wed Nov 10 12:43:21 1999  Philippe De Muyter  <phdm@macqel.be>
-                          Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+			  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
 	* ansidecl.h: Define and test `GCC_VERSION', not `HAVE_GCC_VERSION'.
 
@@ -117,7 +144,7 @@ Fri Oct 15 01:47:51 1999  Vladimir Makarov  <vmakarov@loony.cygnus.com>
 
 	* ansidecl.h (HAVE_GCC_VERSION): New macro.  Use it instead of
 	explicitly testing __GNUC__ and __GNUC_MINOR__.
-	
+
 	(ATTRIBUTE_PRINTF): Use `__format__', not `format'.
 
 1999-09-25  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
@@ -234,18 +261,18 @@ Tue Dec  8 00:30:31 1998  Elena Zannoni  <ezannoni@kwikemart.cygnus.com>
 	from FILE* to void*, for use with gdb's new type GDB_FILE.
 	(fprintf_ftype): change FILE* parameter type to void*.
 
-        * demangle.h: (DMGL_EDG): new macro for Kuck and Associates
-        (DMGL_STYLE_MASK): modify to include Kuck and Assoc style
-        (demangling_styles): add new edg_demangling style
-        (EDG_DEMANGLING_STYLE_STRING): new macro
-        (EDG_DEMANGLING): new macro
+	* demangle.h: (DMGL_EDG): new macro for Kuck and Associates
+	(DMGL_STYLE_MASK): modify to include Kuck and Assoc style
+	(demangling_styles): add new edg_demangling style
+	(EDG_DEMANGLING_STYLE_STRING): new macro
+	(EDG_DEMANGLING): new macro
 
-        * demangle.h (DMGL_HP): new macro, for HP/aCC compiler.
-        (DMGL_STYLE_MASK): modify to include new HP's style.
-        (demangling_styles): add new hp_demangling value.
-        (HP_DEMANGLING_STYLE_STRING): new macro.
-        (ARM_DEMANGLING): coerce to int.
-        (HP_DEMANGLING): new macro.
+	* demangle.h (DMGL_HP): new macro, for HP/aCC compiler.
+	(DMGL_STYLE_MASK): modify to include new HP's style.
+	(demangling_styles): add new hp_demangling value.
+	(HP_DEMANGLING_STYLE_STRING): new macro.
+	(ARM_DEMANGLING): coerce to int.
+	(HP_DEMANGLING): new macro.
 
 	* hp-symtab.h: rewritten, from HP.
 	(quick_procedure): change type of language field to unsigned int
@@ -969,8 +996,8 @@ Thu Apr 28 19:06:50 1994  Ken Raeburn  (raeburn@cujo.cygnus.com)
 
 Fri Apr  1 00:38:17 1994  Jim Wilson  (wilson@mole.gnu.ai.mit.edu)
 
-        * obstack.h: Delete use of IN_GCC to control whether
-        stddef.h or gstddef.h is included.
+	* obstack.h: Delete use of IN_GCC to control whether
+	stddef.h or gstddef.h is included.
 
 Tue Mar 22 13:06:02 1994  Ian Lance Taylor  (ian@tweedledumb.cygnus.com)
 
diff --git a/include/hashtab.h b/include/hashtab.h
index 3990c14cbca..5fe239391ff 100644
--- a/include/hashtab.h
+++ b/include/hashtab.h
@@ -38,69 +38,88 @@ extern "C" {
 
 #include <ansidecl.h>
 
-/* The hash table element is represented by the following type. */
-
-typedef const void *hash_table_entry_t;
+/* Callback function pointer types.  */
+
+/* Calculate hash of a table entry.  */
+typedef unsigned int (*htab_hash) PARAMS ((const void *));
+
+/* Compare a table entry with a possible entry.  The entry already in
+   the table always comes first, so the second element can be of a
+   different type (but in this case htab_find and htab_find_slot
+   cannot be used; instead the variants that accept a hash value
+   must be used).  */
+typedef int (*htab_eq) PARAMS ((const void *, const void *));
+
+/* Cleanup function called whenever a live element is removed from
+   the hash table.  */
+typedef void (*htab_del) PARAMS ((void *));
+  
+/* Function called by htab_traverse for each live element.  The first
+   arg is the slot of the element (which can be passed to htab_clear_slot
+   if desired), the second arg is the auxiliary pointer handed to
+   htab_traverse.  Return 1 to continue scan, 0 to stop.  */
+typedef int (*htab_trav) PARAMS ((void **, void *));
 
 /* Hash tables are of the following type.  The structure
    (implementation) of this type is not needed for using the hash
    tables.  All work with hash table should be executed only through
    functions mentioned below. */
 
-typedef struct hash_table
+struct htab
 {
-  /* Current size (in entries) of the hash table */
-  size_t size;
-  /* Current number of elements including also deleted elements */
-  size_t number_of_elements;
-  /* Current number of deleted elements in the table */
-  size_t number_of_deleted_elements;
-  /* The following member is used for debugging. Its value is number
-     of all calls of `find_hash_table_entry' for the hash table. */
-  int searches;
-  /* The following member is used for debugging.  Its value is number
-     of collisions fixed for time of work with the hash table. */
-  int collisions;
-  /* Pointer to function for evaluation of hash value (any unsigned value).
-     This function has one parameter of type hash_table_entry_t. */
-  unsigned (*hash_function) PARAMS ((hash_table_entry_t));
-  /* Pointer to function for test on equality of hash table elements (two
-     parameter of type hash_table_entry_t. */
-  int (*eq_function) PARAMS ((hash_table_entry_t, hash_table_entry_t));
-  /* Table itself */
-  hash_table_entry_t *entries;
-} *hash_table_t;
-
+  /* Pointer to hash function.  */
+  htab_hash hash_f;
 
-/* The prototypes of the package functions. */
+  /* Pointer to comparison function.  */
+  htab_eq eq_f;
 
-extern hash_table_t create_hash_table
-  PARAMS ((size_t, unsigned (*) (hash_table_entry_t),
-	   int (*) (hash_table_entry_t, hash_table_entry_t)));
+  /* Pointer to cleanup function.  */
+  htab_del del_f;
 
-extern void delete_hash_table PARAMS ((hash_table_t));
+  /* Table itself.  */
+  void **entries;
 
-extern void empty_hash_table PARAMS ((hash_table_t));
+  /* Current size (in entries) of the hash table */
+  size_t size;
 
-extern hash_table_entry_t *find_hash_table_entry
-  PARAMS ((hash_table_t, hash_table_entry_t, int));
+  /* Current number of elements including also deleted elements */
+  size_t n_elements;
 
-extern void remove_element_from_hash_table_entry PARAMS ((hash_table_t,
-							  hash_table_entry_t));
+  /* Current number of deleted elements in the table */
+  size_t n_deleted;
 
-extern void clear_hash_table_slot PARAMS ((hash_table_t, hash_table_entry_t *));
+  /* The following member is used for debugging. Its value is number
+     of all calls of `htab_find_slot' for the hash table. */
+  unsigned int searches;
 
-extern void traverse_hash_table PARAMS ((hash_table_t,
-					 int (*) (hash_table_entry_t, void *),
-					 void *));
-    
-extern size_t hash_table_size PARAMS ((hash_table_t));
+  /* The following member is used for debugging.  Its value is number
+     of collisions fixed for time of work with the hash table. */
+  unsigned int collisions;
+};
 
-extern size_t hash_table_elements_number PARAMS ((hash_table_t));
+typedef struct htab *htab_t;
 
-extern int hash_table_collisions PARAMS ((hash_table_t));
+/* The prototypes of the package functions. */
 
-extern int all_hash_table_collisions PARAMS ((void));
+extern htab_t	htab_create	PARAMS ((size_t, htab_hash,
+					 htab_eq, htab_del));
+extern void	htab_delete	PARAMS ((htab_t));
+extern void	htab_empty	PARAMS ((htab_t));
+
+extern void    *htab_find	PARAMS ((htab_t, const void *));
+extern void   **htab_find_slot	PARAMS ((htab_t, const void *, int));
+extern void    *htab_find_with_hash		PARAMS ((htab_t, const void *,
+							 unsigned int));
+extern void   **htab_find_slot_with_hash	PARAMS ((htab_t, const void *,
+							 unsigned int, int));
+extern void	htab_clear_slot	PARAMS ((htab_t, void **));
+extern void	htab_remove_elt	PARAMS ((htab_t, void *));
+
+extern void	htab_traverse	PARAMS ((htab_t, htab_trav, void *));
+
+extern size_t	htab_size	PARAMS ((htab_t));
+extern size_t	htab_elements	PARAMS ((htab_t));
+extern double	htab_collisions	PARAMS ((htab_t));
 
 #ifdef __cplusplus
 }