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/* hash.h - for hash.c
Copyright (C) 1987, 1992 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GAS 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.
GAS 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 GAS; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef hashH
#define hashH
#include "ansidecl.h"
struct hash_entry
{
const char *hash_string; /* points to where the symbol string is */
/* NULL means slot is not used */
/* DELETED means slot was deleted */
PTR hash_value; /* user's datum, associated with symbol */
};
#define HASH_STATLENGTH (6)
struct hash_control
{
struct hash_entry *hash_where;/* address of hash table */
int hash_sizelog; /* Log of ( hash_mask + 1 ) */
int hash_mask; /* masks a hash into index into table */
int hash_full; /* when hash_stat[STAT_USED] exceeds this, */
/* grow table */
struct hash_entry *hash_wall; /* point just after last (usable) entry */
/* here we have some statistics */
int hash_stat[HASH_STATLENGTH]; /* lies & statistics */
/* we need STAT_USED & STAT_SIZE */
};
/* returns control block */
struct hash_control *hash_new PARAMS ((void));
void hash_die PARAMS ((struct hash_control *));
void hash_say PARAMS ((struct hash_control *, int *buffer, int bufsiz));
/* returns previous value */
PTR hash_delete PARAMS ((struct hash_control *, const char *str));
/* returns previous value */
PTR hash_replace PARAMS ((struct hash_control *, const char *str, PTR val));
/* returns error string or null */
const char *hash_insert PARAMS ((struct hash_control *, const char *str,
PTR val));
/* return of 0 means OK */
char *hash_apply PARAMS ((struct hash_control *,
char *(*fn) (const char *str, PTR val)));
/* returns value */
PTR hash_find PARAMS ((struct hash_control *, const char *str));
/* returns error text or null (internal) */
const char *hash_jam PARAMS ((struct hash_control *, const char *str,
PTR val));
#endif /* #ifdef hashH */
/* $Id: hash.h,v 1.2 1998/08/13 06:13:30 boyns Exp $ */
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