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view lwlib/lw_stringlist.h @ 273:1409debcb1a0
Fix crash on listing when nested noexpand macros are used
Macros flagged noexpand were causing a segfault during listing. The problem
was incorrect accounting for nesting levels for noexpand macros causing the
listing handler to fall off the end of the program in certain circumstances
and in other circumstances it would fail to suppress expansion. Both the
segfault in the case of misbehaviour and the misbhaviour itself are
corrected with this update.
If you do not use nested noexpand macros, this bug has no effect.
author | William Astle <lost@l-w.ca> |
---|---|
date | Sat, 25 May 2013 13:35:46 -0600 |
parents | 2c24602be78f |
children | 8e25147c2aa8 |
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/* lw_stringlist.h Copyright © 2010 William Astle This file is part of LWTOOLS. LWTOOLS 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 of the License, or (at your option) any later version. This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef ___lw_stringlist_h_seen___ #define ___lw_stringlist_h_seen___ #ifdef ___lw_stringlist_c_seen___ struct lw_stringlist_priv { char **strings; int nstrings; int cstring; }; typedef struct lw_stringlist_priv * lw_stringlist_t; #else /* def ___lw_stringlist_c_seen___ */ typedef void * lw_stringlist_t; extern lw_stringlist_t lw_stringlist_create(void); extern void lw_stringlist_destroy(lw_stringlist_t S); extern void lw_stringlist_addstring(lw_stringlist_t S, char *str); extern void lw_stringlist_reset(lw_stringlist_t S); extern char *lw_stringlist_current(lw_stringlist_t S); extern char *lw_stringlist_next(lw_stringlist_t S); extern int lw_stringlist_nstrings(lw_stringlist_t S); extern lw_stringlist_t lw_stringlist_copy(lw_stringlist_t S); #endif /* def ___lw_stringlist_c_seen___ */ #endif /* ___lw_stringlist_h_seen___ */