Engagement initial.

1 files changed, 233 insertions, 0 deletions

diff --git a/make/make-3.81/hash.h b/make/make-3.81/hash.h
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+/* hash.h -- decls for hash table
+Copyright (C) 1995, 1999, 2002 Free Software Foundation, Inc.
+Written by Greg McGary <gkm@gnu.org> <greg@mcgary.org>
+
+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
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; see the file COPYING.  If not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.  */
+
+#ifndef _hash_h_
+#define _hash_h_
+
+#include <stdio.h>
+#include <ctype.h>
+
+#if defined __cplusplus || (defined __STDC__ && __STDC__) || defined WINDOWS32
+# if !defined __GLIBC__ || !defined __P
+#  undef	__P
+#  define __P(protos)	protos
+# endif
+#else /* Not C++ or ANSI C.  */
+# undef	__P
+# define __P(protos)	()
+/* We can get away without defining `const' here only because in this file
+   it is used only inside the prototype for `fnmatch', which is elided in
+   non-ANSI C where `const' is problematical.  */
+#endif /* C++ or ANSI C.  */
+
+typedef unsigned long (*hash_func_t) __P((void const *key));
+typedef int (*hash_cmp_func_t) __P((void const *x, void const *y));
+typedef void (*hash_map_func_t) __P((void const *item));
+typedef void (*hash_map_arg_func_t) __P((void const *item, void *arg));
+
+struct hash_table
+{
+  void **ht_vec;
+  unsigned long ht_size;	/* total number of slots (power of 2) */
+  unsigned long ht_capacity;	/* usable slots, limited by loading-factor */
+  unsigned long ht_fill;	/* items in table */
+  unsigned long ht_empty_slots;	/* empty slots not including deleted slots */
+  unsigned long ht_collisions;	/* # of failed calls to comparison function */
+  unsigned long ht_lookups;	/* # of queries */
+  unsigned int ht_rehashes;	/* # of times we've expanded table */
+  hash_func_t ht_hash_1;	/* primary hash function */
+  hash_func_t ht_hash_2;	/* secondary hash function */
+  hash_cmp_func_t ht_compare;	/* comparison function */
+};
+
+typedef int (*qsort_cmp_t) __P((void const *, void const *));
+
+void hash_init __P((struct hash_table *ht, unsigned long size,
+		    hash_func_t hash_1, hash_func_t hash_2, hash_cmp_func_t hash_cmp));
+void hash_load __P((struct hash_table *ht, void *item_table,
+		    unsigned long cardinality, unsigned long size));
+void **hash_find_slot __P((struct hash_table *ht, void const *key));
+void *hash_find_item __P((struct hash_table *ht, void const *key));
+void *hash_insert __P((struct hash_table *ht, const void *item));
+void *hash_insert_at __P((struct hash_table *ht, const void *item, void const *slot));
+void *hash_delete __P((struct hash_table *ht, void const *item));
+void *hash_delete_at __P((struct hash_table *ht, void const *slot));
+void hash_delete_items __P((struct hash_table *ht));
+void hash_free_items __P((struct hash_table *ht));
+void hash_free __P((struct hash_table *ht, int free_items));
+void hash_map __P((struct hash_table *ht, hash_map_func_t map));
+void hash_map_arg __P((struct hash_table *ht, hash_map_arg_func_t map, void *arg));
+void hash_print_stats __P((struct hash_table *ht, FILE *out_FILE));
+void **hash_dump __P((struct hash_table *ht, void **vector_0, qsort_cmp_t compare));
+
+extern void *hash_deleted_item;
+#define HASH_VACANT(item) ((item) == 0 || (void *) (item) == hash_deleted_item)
+
+
+/* hash and comparison macros for case-sensitive string keys. */
+
+#define STRING_HASH_1(KEY, RESULT) do { \
+  unsigned char const *_key_ = (unsigned char const *) (KEY) - 1; \
+  while (*++_key_) \
+    (RESULT) += (*_key_ << (_key_[1] & 0xf)); \
+} while (0)
+#define return_STRING_HASH_1(KEY) do { \
+  unsigned long _result_ = 0; \
+  STRING_HASH_1 ((KEY), _result_); \
+  return _result_; \
+} while (0)
+
+#define STRING_HASH_2(KEY, RESULT) do { \
+  unsigned char const *_key_ = (unsigned char const *) (KEY) - 1; \
+  while (*++_key_) \
+    (RESULT) += (*_key_ << (_key_[1] & 0x7)); \
+} while (0)
+#define return_STRING_HASH_2(KEY) do { \
+  unsigned long _result_ = 0; \
+  STRING_HASH_2 ((KEY), _result_); \
+  return _result_; \
+} while (0)
+
+#define STRING_COMPARE(X, Y, RESULT) do { \
+  RESULT = strcmp ((X), (Y)); \
+} while (0)
+#define return_STRING_COMPARE(X, Y) do { \
+  return strcmp ((X), (Y)); \
+} while (0)
+
+
+#define STRING_N_HASH_1(KEY, N, RESULT) do { \
+  unsigned char const *_key_ = (unsigned char const *) (KEY) - 1; \
+  int _n_ = (N); \
+  if (_n_) \
+    while (--_n_ && *++_key_) \
+      (RESULT) += (*_key_ << (_key_[1] & 0xf)); \
+  (RESULT) += *++_key_; \
+} while (0)
+#define return_STRING_N_HASH_1(KEY, N) do { \
+  unsigned long _result_ = 0; \
+  STRING_N_HASH_1 ((KEY), (N), _result_); \
+  return _result_; \
+} while (0)
+
+#define STRING_N_HASH_2(KEY, N, RESULT) do { \
+  unsigned char const *_key_ = (unsigned char const *) (KEY) - 1; \
+  int _n_ = (N); \
+  if (_n_) \
+    while (--_n_ && *++_key_) \
+      (RESULT) += (*_key_ << (_key_[1] & 0x7)); \
+  (RESULT) += *++_key_; \
+} while (0)
+#define return_STRING_N_HASH_2(KEY, N) do { \
+  unsigned long _result_ = 0; \
+  STRING_N_HASH_2 ((KEY), (N), _result_); \
+  return _result_; \
+} while (0)
+
+#define STRING_N_COMPARE(X, Y, N, RESULT) do { \
+  RESULT = strncmp ((X), (Y), (N)); \
+} while (0)
+#define return_STRING_N_COMPARE(X, Y, N) do { \
+  return strncmp ((X), (Y), (N)); \
+} while (0)
+
+#ifdef HAVE_CASE_INSENSITIVE_FS
+
+/* hash and comparison macros for case-insensitive string _key_s. */
+
+#define ISTRING_HASH_1(KEY, RESULT) do { \
+  unsigned char const *_key_ = (unsigned char const *) (KEY) - 1; \
+  while (*++_key_) \
+    (RESULT) += ((isupper (*_key_) ? tolower (*_key_) : *_key_) << (_key_[1] & 0xf)); \
+} while (0)
+#define return_ISTRING_HASH_1(KEY) do { \
+  unsigned long _result_ = 0; \
+  ISTRING_HASH_1 ((KEY), _result_); \
+  return _result_; \
+} while (0)
+
+#define ISTRING_HASH_2(KEY, RESULT) do { \
+  unsigned char const *_key_ = (unsigned char const *) (KEY) - 1; \
+  while (*++_key_) \
+    (RESULT) += ((isupper (*_key_) ? tolower (*_key_) : *_key_) << (_key_[1] & 0x7)); \
+} while (0)
+#define return_ISTRING_HASH_2(KEY) do { \
+  unsigned long _result_ = 0; \
+  ISTRING_HASH_2 ((KEY), _result_); \
+  return _result_; \
+} while (0)
+
+#define ISTRING_COMPARE(X, Y, RESULT) do { \
+  RESULT = strcmpi ((X), (Y)); \
+} while (0)
+#define return_ISTRING_COMPARE(X, Y) do { \
+  return strcmpi ((X), (Y)); \
+} while (0)
+
+#else
+
+#define ISTRING_HASH_1(KEY, RESULT) STRING_HASH_1 ((KEY), (RESULT))
+#define return_ISTRING_HASH_1(KEY) return_STRING_HASH_1 (KEY)
+
+#define ISTRING_HASH_2(KEY, RESULT) STRING_HASH_2 ((KEY), (RESULT))
+#define return_ISTRING_HASH_2(KEY) return_STRING_HASH_2 (KEY)
+
+#define ISTRING_COMPARE(X, Y, RESULT) STRING_COMPARE ((X), (Y), (RESULT))
+#define return_ISTRING_COMPARE(X, Y) return_STRING_COMPARE ((X), (Y))
+
+#endif
+
+/* hash and comparison macros for integer _key_s. */
+
+#define INTEGER_HASH_1(KEY, RESULT) do { \
+  (RESULT) += ((unsigned long)(KEY)); \
+} while (0)
+#define return_INTEGER_HASH_1(KEY) do { \
+  unsigned long _result_ = 0; \
+  INTEGER_HASH_1 ((KEY), _result_); \
+  return _result_; \
+} while (0)
+
+#define INTEGER_HASH_2(KEY, RESULT) do { \
+  (RESULT) += ~((unsigned long)(KEY)); \
+} while (0)
+#define return_INTEGER_HASH_2(KEY) do { \
+  unsigned long _result_ = 0; \
+  INTEGER_HASH_2 ((KEY), _result_); \
+  return _result_; \
+} while (0)
+
+#define INTEGER_COMPARE(X, Y, RESULT) do { \
+  (RESULT) = X - Y; \
+} while (0)
+#define return_INTEGER_COMPARE(X, Y) do { \
+  int _result_; \
+  INTEGER_COMPARE (X, Y, _result_); \
+  return _result_; \
+} while (0)
+
+/* hash and comparison macros for address keys. */
+
+#define ADDRESS_HASH_1(KEY, RESULT) INTEGER_HASH_1 (((unsigned long)(KEY)) >> 3, (RESULT))
+#define ADDRESS_HASH_2(KEY, RESULT) INTEGER_HASH_2 (((unsigned long)(KEY)) >> 3, (RESULT))
+#define ADDRESS_COMPARE(X, Y, RESULT) INTEGER_COMPARE ((X), (Y), (RESULT))
+#define return_ADDRESS_HASH_1(KEY) return_INTEGER_HASH_1 (((unsigned long)(KEY)) >> 3)
+#define return_ADDRESS_HASH_2(KEY) return_INTEGER_HASH_2 (((unsigned long)(KEY)) >> 3)
+#define return_ADDRESS_COMPARE(X, Y) return_INTEGER_COMPARE ((X), (Y))
+
+#endif /* not _hash_h_ */