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[/] [openrisc/] [trunk/] [gnu-stable/] [binutils-2.20.1/] [gas/] [hash.h] - Rev 820
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/* hash.h -- header file for gas hash table routines Copyright 1987, 1992, 1993, 1995, 1999, 2003, 2005, 2007, 2008 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 3, 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, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef HASH_H #define HASH_H struct hash_control; /* Set the size of the hash table used. */ void set_gas_hash_table_size (unsigned long); /* Create a hash table. This return a control block. */ extern struct hash_control *hash_new (void); /* Delete a hash table, freeing all allocated memory. */ extern void hash_die (struct hash_control *); /* Insert an entry into a hash table. This returns NULL on success. On error, it returns a printable string indicating the error. It is considered to be an error if the entry already exists in the hash table. */ extern const char *hash_insert (struct hash_control *, const char *key, void *value); /* Insert or replace an entry in a hash table. This returns NULL on success. On error, it returns a printable string indicating the error. If an entry already exists, its value is replaced. */ extern const char *hash_jam (struct hash_control *, const char *key, void *value); /* Replace an existing entry in a hash table. This returns the old value stored for the entry. If the entry is not found in the hash table, this does nothing and returns NULL. */ extern void *hash_replace (struct hash_control *, const char *key, void *value); /* Find an entry in a hash table, returning its value. Returns NULL if the entry is not found. */ extern void *hash_find (struct hash_control *, const char *key); /* As hash_find, but KEY is of length LEN and is not guaranteed to be NUL-terminated. */ extern void *hash_find_n (struct hash_control *, const char *key, size_t len); /* Delete an entry from a hash table. This returns the value stored for that entry, or NULL if there is no such entry. */ extern void *hash_delete (struct hash_control *, const char *key, int); /* Traverse a hash table. Call the function on every entry in the hash table. */ extern void hash_traverse (struct hash_control *, void (*pfn) (const char *key, void *value)); /* Print hash table statistics on the specified file. NAME is the name of the hash table, used for printing a header. */ extern void hash_print_statistics (FILE *, const char *name, struct hash_control *); #endif /* HASH_H */
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