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* src/bison.simple (YYSTACK_REALLOC): New.

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(yyparse) [!yyoverflow]: Use it and free the old stack.
Reported by FIXME: Who.
This commit is contained in:
Akim Demaille
2001-11-12 09:24:50 +00:00
parent 5f7e08323a
commit e9e4c32114
3 changed files with 32 additions and 16 deletions
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6
ChangeLog
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@@ -1,3 +1,9 @@
2001-11-12 Akim Demaille <akim@epita.fr>
* src/bison.simple (YYSTACK_REALLOC): New.
(yyparse) [!yyoverflow]: Use it and free the old stack.
Reported by FIXME: Who.
2001-11-12 Pascal Bart <pascal.bart@epita.fr>
* src/bison.simple: Define type yystype instead of YYSTYPE, and

3
THANKS
View File

@@ -2,7 +2,7 @@ Bison was originally written by Robert Corbett. It would not be what
it is today without the invaluable help of these people:
Airy Andre Airy.Andre@edf.fr
Akim Demaille akim@epita.fr
Akim Demaille akim@freefriends.org
Albert Chin-A-Young china@thewrittenword.com
Alexander Belopolsky alexb@rentec.com
Daniel Hagerty hag@gnu.org
@@ -20,6 +20,7 @@ Neil Booth NeilB@earthling.net
Noah Friedman friedman@gnu.org
Pascal Bart pascal.bart@epita.fr
Paul Eggert eggert@twinsun.com
Per Allansson per@appgate.com
Piotr Gackiewicz gacek@intertel.com.pl
Richard Stallman rms@gnu.org
Robert Anisko anisko_r@epita.fr

39
src/bison.simple
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@@ -102,10 +102,27 @@
# define YYSTACK_USE_ALLOCA 0
#endif
/* Realloc WHAT from SIZE to YYSTACKSIZE elements of TYPE.
If WHAT was malloc'ed (not the original automatic ARRAY), free it. */
#if YYSTACK_USE_ALLOCA
# define YYSTACK_ALLOC alloca
# define YYSTACK_REALLOC(Type, What, Array) \
do { \
Type *old = What; \
What = (Type *) malloc (yystacksize * sizeof (Type)); \
__yy_memcpy ((char *) What, (char *) old, \
(size) * (unsigned int) sizeof (Type)); \
yyfree_stacks = 1; \
if (old != Array) \
free (old); \
} while (0)
#else
# define YYSTACK_ALLOC malloc
# define YYSTACK_REALLOC(Type, What, Array) \
do { \
Type *old = What; \
What = (Type *) alloca (yystacksize * sizeof (Type)); \
__yy_memcpy ((char *) What, (char *) old, \
(size) * (unsigned int) sizeof (Type)); \
} while (0)
#endif
#define YYBISON 1 /* Identify Bison output. */
@@ -452,7 +469,7 @@ yyparse (YYPARSE_PARAM_ARG)
/* Three stacks and their tools:
`yyss': related to states,
`yysv': related to semantic values,
`yyvs': related to semantic values,
`yyls': related to locations.
Refer to the stacks thru separate pointers, to allow yyoverflow
@@ -580,19 +597,11 @@ yyparse (YYPARSE_PARAM_ARG)
yystacksize *= 2;
if (yystacksize > YYMAXDEPTH)
yystacksize = YYMAXDEPTH;
# if !YYSTACK_USE_ALLOCA
yyfree_stacks = 1;
# endif
yyss = (short *) YYSTACK_ALLOC (yystacksize * sizeof (*yyssp));
__yy_memcpy ((char *)yyss, (char *)yyss1,
size * (unsigned int) sizeof (*yyssp));
yyvs = (YYSTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yyvsp));
__yy_memcpy ((char *)yyvs, (char *)yyvs1,
size * (unsigned int) sizeof (*yyvsp));
YYSTACK_REALLOC (short, yyss, yyssa);
YYSTACK_REALLOC (YYSTYPE, yyvs, yyvsa);
# if YYLSP_NEEDED
yyls = (YYLTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yylsp));
__yy_memcpy ((char *)yyls, (char *)yyls1,
size * (unsigned int) sizeof (*yylsp));
YYSTACK_REALLOC (YYLTYPE, yyls, yylsa);
# endif
#endif /* no yyoverflow */