projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 54d22525 | 1 | /* hash.h -- header file for gas hash table routines |
| 2da5c037 AM |
2 | Copyright 1987, 1992, 1993, 1995, 1999, 2003 |
| 3 | Free Software Foundation, Inc. | |
| 252b5132 RH |
4 | |
| 5 | This file is part of GAS, the GNU Assembler. | |
| 6 | ||
| 7 | GAS is free software; you can redistribute it and/or modify | |
| 8 | it under the terms of the GNU General Public License as published by | |
| 9 | the Free Software Foundation; either version 2, or (at your option) | |
| 10 | any later version. | |
| 11 | ||
| 12 | GAS is distributed in the hope that it will be useful, | |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | GNU General Public License for more details. | |
| 16 | ||
| 17 | You should have received a copy of the GNU General Public License | |
| 54d22525 | 18 | along with GAS; see the file COPYING. If not, write to the Free |
| 4b4da160 NC |
19 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
| 20 | 02110-1301, USA. */ | |
| 252b5132 | 21 | |
| 54d22525 ILT |
22 | #ifndef HASH_H |
| 23 | #define HASH_H | |
| 252b5132 RH |
24 | |
| 25 | struct hash_control; | |
| 26 | ||
| 4bdd3565 NC |
27 | /* Set the size of the hash table used. */ |
| 28 | ||
| f7a568ea | 29 | void set_gas_hash_table_size (unsigned long); |
| 4bdd3565 | 30 | |
| 54d22525 ILT |
31 | /* Create a hash table. This return a control block. */ |
| 32 | ||
| b1f1fa96 | 33 | extern struct hash_control *hash_new (void); |
| 54d22525 ILT |
34 | |
| 35 | /* Delete a hash table, freeing all allocated memory. */ | |
| 36 | ||
| b1f1fa96 | 37 | extern void hash_die (struct hash_control *); |
| 54d22525 ILT |
38 | |
| 39 | /* Insert an entry into a hash table. This returns NULL on success. | |
| 40 | On error, it returns a printable string indicating the error. It | |
| 41 | is considered to be an error if the entry already exists in the | |
| 42 | hash table. */ | |
| 43 | ||
| b1f1fa96 KH |
44 | extern const char *hash_insert (struct hash_control *, |
| 45 | const char *key, PTR value); | |
| 54d22525 ILT |
46 | |
| 47 | /* Insert or replace an entry in a hash table. This returns NULL on | |
| 48 | success. On error, it returns a printable string indicating the | |
| 49 | error. If an entry already exists, its value is replaced. */ | |
| 50 | ||
| b1f1fa96 KH |
51 | extern const char *hash_jam (struct hash_control *, |
| 52 | const char *key, PTR value); | |
| 54d22525 | 53 | |
| 7e70f1af L |
54 | /* Replace an existing entry in a hash table. This returns the old |
| 55 | value stored for the entry. If the entry is not found in the hash | |
| 56 | table, this does nothing and returns NULL. */ | |
| 57 | ||
| 58 | extern PTR hash_replace (struct hash_control *, const char *key, | |
| 59 | PTR value); | |
| 60 | ||
| 54d22525 ILT |
61 | /* Find an entry in a hash table, returning its value. Returns NULL |
| 62 | if the entry is not found. */ | |
| 63 | ||
| b1f1fa96 | 64 | extern PTR hash_find (struct hash_control *, const char *key); |
| 54d22525 | 65 | |
| 7e70f1af L |
66 | /* Delete an entry from a hash table. This returns the value stored |
| 67 | for that entry, or NULL if there is no such entry. */ | |
| 68 | ||
| 69 | extern PTR hash_delete (struct hash_control *, const char *key); | |
| 70 | ||
| 54d22525 ILT |
71 | /* Traverse a hash table. Call the function on every entry in the |
| 72 | hash table. */ | |
| 73 | ||
| b1f1fa96 KH |
74 | extern void hash_traverse (struct hash_control *, |
| 75 | void (*pfn) (const char *key, PTR value)); | |
| 54d22525 ILT |
76 | |
| 77 | /* Print hash table statistics on the specified file. NAME is the | |
| 78 | name of the hash table, used for printing a header. */ | |
| 79 | ||
| b1f1fa96 KH |
80 | extern void hash_print_statistics (FILE *, const char *name, |
| 81 | struct hash_control *); | |
| 54d22525 ILT |
82 | |
| 83 | #endif /* HASH_H */ |