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1 | /* Keeping a unique copy of strings. | |
2 | ||
3 | Copyright (C) 2002, 2003 Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of Bison, the GNU Compiler Compiler. | |
6 | ||
7 | This program 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 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program 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 | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #ifndef UNIQSTR_H_ | |
21 | # define UNIQSTR_H_ | |
22 | ||
23 | /*-----------------------------------------. | |
24 | | Pointers to unique copies of C strings. | | |
25 | `-----------------------------------------*/ | |
26 | ||
27 | typedef char const *uniqstr; | |
28 | ||
29 | /* Return the uniqstr for STR. */ | |
30 | uniqstr uniqstr_new (char const *str); | |
31 | ||
32 | /* Two uniqstr values have the same value iff they are the same. */ | |
33 | #define UNIQSTR_EQ(USTR1, USTR2) ((USTR1) == (USTR2)) | |
34 | ||
35 | /*--------------------------------------. | |
36 | | Initializing, destroying, debugging. | | |
37 | `--------------------------------------*/ | |
38 | ||
39 | /* Create the string table. */ | |
40 | void uniqstrs_new (void); | |
41 | ||
42 | /* Die if STR is not a uniqstr. */ | |
43 | void uniqstr_assert (char const *str); | |
44 | ||
45 | /* Free all the memory allocated for symbols. */ | |
46 | void uniqstrs_free (void); | |
47 | ||
48 | /* Report them all. */ | |
49 | void uniqstrs_print (void); | |
50 | ||
51 | #endif /* ! defined UNIQSTR_H_ */ |