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Rename struniq -> uniqstr to avoid collision with <string.h>.

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This commit is contained in:
Paul Eggert
2002-12-11 05:23:54 +00:00
parent 4bebc88ee1
commit 9939fdb139
2 changed files with 0 additions and 199 deletions
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147
src/struniq.c
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@@ -1,147 +0,0 @@
/* Keeping a unique copy of strings.
Copyright (C) 2002 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
Bison 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.
Bison 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 Bison; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "system.h"
#include "quotearg.h"
#include "error.h"
#include "hash.h"
#include "struniq.h"
/*-----------------------.
| A struniq hash table. |
`-----------------------*/
/* Initial capacity of struniq hash table. */
#define HT_INITIAL_CAPACITY 257
static struct hash_table *struniqs_table = NULL;
/*-------------------------------------.
| Create the struniq for S if needed. |
`-------------------------------------*/
struniq_t
struniq_new (const char *s)
{
struniq_t res = hash_lookup (struniqs_table, s);
if (!res)
{
/* First insertion in the hash. */
res = xstrdup (s);
hash_insert (struniqs_table, res);
}
return res;
}
/*------------------------------.
| Abort if S is not a struniq. |
`------------------------------*/
void
struniq_assert (const char *s)
{
if (!hash_lookup (struniqs_table, s))
{
error (0, 0, "not a struniq: %s", quotearg (s));
abort ();
}
}
/*--------------------.
| Print the struniq. |
`--------------------*/
static bool
struniq_print (const struniq_t s)
{
fprintf (stderr, "%s\n", s);
return true;
}
/*-----------------------.
| A struniq hash table. |
`-----------------------*/
static bool
hash_compare_struniq_t (const struniq_t m1, const struniq_t m2)
{
return strcmp (m1, m2) == 0;
}
static unsigned int
hash_struniq_t (const struniq_t m, unsigned int tablesize)
{
return hash_string (m, tablesize);
}
/* A function to apply to each symbol. */
typedef bool (*struniq_processor_t) (const struniq_t);
/*----------------------------.
| Create the struniqs table. |
`----------------------------*/
void
struniqs_new (void)
{
struniqs_table = hash_initialize (HT_INITIAL_CAPACITY,
NULL,
(Hash_hasher) hash_struniq_t,
(Hash_comparator) hash_compare_struniq_t,
(Hash_data_freer) free);
}
/*-------------------------------------.
| Perform a task on all the struniqs. |
`-------------------------------------*/
static void
struniqs_do (struniq_processor_t processor, void *processor_data)
{
hash_do_for_each (struniqs_table,
(Hash_processor) processor,
processor_data);
}
/*-----------------.
| Print them all. |
`-----------------*/
void
struniqs_print (void)
{
struniqs_do (struniq_print, NULL);
}
/*--------------------.
| Free the struniqs. |
`--------------------*/
void
struniqs_free (void)
{
hash_free (struniqs_table);
}

52
src/struniq.h
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@@ -1,52 +0,0 @@
/* Keeping a unique copy of strings.
Copyright (C) 2002 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
Bison 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.
Bison 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 Bison; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef STRUNIQ_H_
# define STRUNIQ_H_
/*------------------------------------------------------.
| struniq_t -- pointers to unique copies of C strings. |
`------------------------------------------------------*/
typedef const char *struniq_t;
/* Return the struniq for S. */
struniq_t struniq_new (const char *s);
/* Two struniq have the same value iff they are the same. */
#define STRUNIQ_EQ(S1, S2) ((S1) == (S2))
/*--------------------------------------.
| Initializing, destroying, debugging. |
`--------------------------------------*/
/* Create the string table. */
void struniqs_new (void);
/* Die if S is not a struniq. */
void struniq_assert (const char *s);
/* Free all the memory allocated for symbols. */
void struniqs_free (void);
/* Report them all. */
void struniqs_print (void);
#endif /* !STRUNIQ_H_ */