/* 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 UNIQSTR_H_ # define UNIQSTR_H_ /*-----------------------------------------. | Pointers to unique copies of C strings. | `-----------------------------------------*/ typedef char const *uniqstr; /* Return the uniqstr for S. */ uniqstr uniqstr_new (char const *s); /* Two uniqstr have the same value iff they are the same. */ #define UNIQSTR_EQ(S1, S2) ((S1) == (S2)) /*--------------------------------------. | Initializing, destroying, debugging. | `--------------------------------------*/ /* Create the string table. */ void uniqstrs_new (void); /* Die if S is not a uniqstr. */ void uniqstr_assert (const char *s); /* Free all the memory allocated for symbols. */ void uniqstrs_free (void); /* Report them all. */ void uniqstrs_print (void); #endif /* ! defined UNIQSTR_H_ */