Add native Windows binary for bison.

bison/src/bison/2.4.1/bison-2.4.1-src/src/uniqstr.c

+/* Keep a unique copy of strings.
+
+   Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+   This file is part of Bison, the GNU Compiler Compiler.
+
+   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 3 of the License, 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.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+#include "system.h"
+
+#include <error.h>
+#include <hash.h>
+#include <quotearg.h>
+
+#include "uniqstr.h"
+
+/*-----------------------.
+| A uniqstr hash table.  |
+`-----------------------*/
+
+/* Initial capacity of uniqstr hash table.  */
+#define HT_INITIAL_CAPACITY 257
+
+static struct hash_table *uniqstrs_table = NULL;
+
+/*-------------------------------------.
+| Create the uniqstr for S if needed.  |
+`-------------------------------------*/
+
+uniqstr
+uniqstr_new (char const *str)
+{
+  uniqstr res = hash_lookup (uniqstrs_table, str);
+  if (!res)
+    {
+      /* First insertion in the hash. */
+      res = xstrdup (str);
+      hash_insert (uniqstrs_table, res);
+    }
+  return res;
+}
+
+
+/*------------------------------.
+| Abort if S is not a uniqstr.  |
+`------------------------------*/
+
+void
+uniqstr_assert (char const *str)
+{
+  if (!hash_lookup (uniqstrs_table, str))
+    {
+      error (0, 0,
+             "not a uniqstr: %s", quotearg (str));
+      abort ();
+    }
+}
+
+
+/*--------------------.
+| Print the uniqstr.  |
+`--------------------*/
+
+static inline bool
+uniqstr_print (uniqstr ustr)
+{
+  fprintf (stderr, "%s\n", ustr);
+  return true;
+}
+
+static bool
+uniqstr_print_processor (void *ustr, void *null ATTRIBUTE_UNUSED)
+{
+  return uniqstr_print (ustr);
+}
+
+
+/*-----------------------.
+| A uniqstr hash table.  |
+`-----------------------*/
+
+static bool
+hash_compare_uniqstr (void const *m1, void const *m2)
+{
+  return strcmp (m1, m2) == 0;
+}
+
+static size_t
+hash_uniqstr (void const *m, size_t tablesize)
+{
+  return hash_string (m, tablesize);
+}
+
+/*----------------------------.
+| Create the uniqstrs table.  |
+`----------------------------*/
+
+void
+uniqstrs_new (void)
+{
+  uniqstrs_table = hash_initialize (HT_INITIAL_CAPACITY,
+                                    NULL,
+                                    hash_uniqstr,
+                                    hash_compare_uniqstr,
+                                    free);
+}
+
+
+/*-------------------------------------.
+| Perform a task on all the uniqstrs.  |
+`-------------------------------------*/
+
+static void
+uniqstrs_do (Hash_processor processor, void *processor_data)
+{
+  hash_do_for_each (uniqstrs_table, processor, processor_data);
+}
+
+
+/*-----------------.
+| Print them all.  |
+`-----------------*/
+
+void
+uniqstrs_print (void)
+{
+  uniqstrs_do (uniqstr_print_processor, NULL);
+}
+
+
+/*--------------------.
+| Free the uniqstrs.  |
+`--------------------*/
+
+void
+uniqstrs_free (void)
+{
+  hash_free (uniqstrs_table);
+}