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cexp.c
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cexp.c
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/* A Bison parser, made from cexp.y with Bison version GNU Bison version 1.22
*/
#define YYBISON 1 /* Identify Bison output. */
#define INT 258
#define CHAR 259
#define NAME 260
#define ERROR 261
#define OR 262
#define AND 263
#define EQUAL 264
#define NOTEQUAL 265
#define LEQ 266
#define GEQ 267
#define LSH 268
#define RSH 269
#define UNARY 270
#line 27 "cexp.y"
#include "config.h"
#include <setjmp.h>
/* #define YYDEBUG 1 */
#ifdef MULTIBYTE_CHARS
#include <stdlib.h>
#include <locale.h>
#endif
#include <stdio.h>
typedef unsigned char U_CHAR;
/* This is used for communicating lists of keywords with cccp.c. */
struct arglist {
struct arglist *next;
U_CHAR *name;
int length;
int argno;
};
/* Define a generic NULL if one hasn't already been defined. */
#ifndef NULL
#define NULL 0
#endif
#ifndef GENERIC_PTR
#if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
#define GENERIC_PTR void *
#else
#define GENERIC_PTR char *
#endif
#endif
/* Find the largest host integer type and set its size and type. */
#ifndef HOST_BITS_PER_WIDE_INT
#if HOST_BITS_PER_LONG > HOST_BITS_PER_INT
#define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_LONG
#define HOST_WIDE_INT long
#else
#define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_INT
#define HOST_WIDE_INT int
#endif
#endif
#ifndef NULL_PTR
#define NULL_PTR ((GENERIC_PTR)0)
#endif
int yylex ();
void yyerror ();
HOST_WIDE_INT expression_value;
static jmp_buf parse_return_error;
/* Nonzero means count most punctuation as part of a name. */
static int keyword_parsing = 0;
/* Nonzero means do not evaluate this expression.
This is a count, since unevaluated expressions can nest. */
static int skip_evaluation;
/* some external tables of character types */
extern unsigned char is_idstart[], is_idchar[], is_hor_space[];
extern char *xmalloc ();
/* Flag for -pedantic. */
extern int pedantic;
/* Flag for -traditional. */
extern int traditional;
#ifndef CHAR_TYPE_SIZE
#define CHAR_TYPE_SIZE BITS_PER_UNIT
#endif
#ifndef INT_TYPE_SIZE
#define INT_TYPE_SIZE BITS_PER_WORD
#endif
#ifndef LONG_TYPE_SIZE
#define LONG_TYPE_SIZE BITS_PER_WORD
#endif
#ifndef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE INT_TYPE_SIZE
#endif
#ifndef MAX_CHAR_TYPE_SIZE
#define MAX_CHAR_TYPE_SIZE CHAR_TYPE_SIZE
#endif
#ifndef MAX_INT_TYPE_SIZE
#define MAX_INT_TYPE_SIZE INT_TYPE_SIZE
#endif
#ifndef MAX_LONG_TYPE_SIZE
#define MAX_LONG_TYPE_SIZE LONG_TYPE_SIZE
#endif
#ifndef MAX_WCHAR_TYPE_SIZE
#define MAX_WCHAR_TYPE_SIZE WCHAR_TYPE_SIZE
#endif
/* Yield nonzero if adding two numbers with A's and B's signs can yield a
number with SUM's sign, where A, B, and SUM are all C integers. */
#define possible_sum_sign(a, b, sum) ((((a) ^ (b)) | ~ ((a) ^ (sum))) < 0)
static void integer_overflow ();
static long left_shift ();
static long right_shift ();
#line 146 "cexp.y"
typedef union {
struct constant {long value; int unsignedp;} integer;
struct name {U_CHAR *address; int length;} name;
struct arglist *keywords;
} YYSTYPE;
#ifndef YYLTYPE
typedef
struct yyltype
{
int timestamp;
int first_line;
int first_column;
int last_line;
int last_column;
char *text;
}
yyltype;
#define YYLTYPE yyltype
#endif
#include <stdio.h>
#ifndef __cplusplus
#ifndef __STDC__
#define const
#endif
#endif
#define YYFINAL 77
#define YYFLAG -32768
#define YYNTBASE 34
#define YYTRANSLATE(x) ((unsigned)(x) <= 270 ? yytranslate[x] : 43)
static const char yytranslate[] = { 0,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 29, 2, 31, 2, 27, 14, 2, 32,
33, 25, 23, 9, 24, 2, 26, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 8, 2, 17,
2, 18, 7, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 13, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 12, 2, 30, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 1, 2, 3, 4, 5,
6, 10, 11, 15, 16, 19, 20, 21, 22, 28
};
#if YYDEBUG != 0
static const short yyprhs[] = { 0,
0, 2, 4, 8, 11, 14, 17, 20, 23, 24,
31, 35, 39, 43, 47, 51, 55, 59, 63, 67,
71, 75, 79, 83, 87, 91, 95, 99, 100, 105,
106, 111, 112, 113, 121, 123, 125, 127, 128, 133
};
static const short yyrhs[] = { 35,
0, 36, 0, 35, 9, 36, 0, 24, 36, 0,
29, 36, 0, 23, 36, 0, 30, 36, 0, 31,
5, 0, 0, 31, 5, 37, 32, 42, 33, 0,
32, 35, 33, 0, 36, 25, 36, 0, 36, 26,
36, 0, 36, 27, 36, 0, 36, 23, 36, 0,
36, 24, 36, 0, 36, 21, 36, 0, 36, 22,
36, 0, 36, 15, 36, 0, 36, 16, 36, 0,
36, 19, 36, 0, 36, 20, 36, 0, 36, 17,
36, 0, 36, 18, 36, 0, 36, 14, 36, 0,
36, 13, 36, 0, 36, 12, 36, 0, 0, 36,
11, 38, 36, 0, 0, 36, 10, 39, 36, 0,
0, 0, 36, 7, 40, 36, 8, 41, 36, 0,
3, 0, 4, 0, 5, 0, 0, 32, 42, 33,
42, 0, 5, 42, 0
};
#endif
#if YYDEBUG != 0
static const short yyrline[] = { 0,
176, 181, 182, 189, 194, 197, 199, 202, 206, 208,
213, 218, 230, 246, 258, 265, 272, 278, 284, 287,
290, 296, 302, 308, 314, 317, 320, 323, 326, 329,
332, 335, 337, 340, 343, 345, 347, 352, 354, 367
};
static const char * const yytname[] = { "$","error","$illegal.","INT","CHAR",
"NAME","ERROR","'?'","':'","','","OR","AND","'|'","'^'","'&'","EQUAL","NOTEQUAL",
"'<'","'>'","LEQ","GEQ","LSH","RSH","'+'","'-'","'*'","'/'","'%'","UNARY","'!'",
"'~'","'#'","'('","')'","start","exp1","exp","@1","@2","@3","@4","@5","keywords",
""
};
#endif
static const short yyr1[] = { 0,
34, 35, 35, 36, 36, 36, 36, 36, 37, 36,
36, 36, 36, 36, 36, 36, 36, 36, 36, 36,
36, 36, 36, 36, 36, 36, 36, 38, 36, 39,
36, 40, 41, 36, 36, 36, 36, 42, 42, 42
};
static const short yyr2[] = { 0,
1, 1, 3, 2, 2, 2, 2, 2, 0, 6,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 0, 4, 0,
4, 0, 0, 7, 1, 1, 1, 0, 4, 2
};
static const short yydefact[] = { 0,
35, 36, 37, 0, 0, 0, 0, 0, 0, 1,
2, 6, 4, 5, 7, 8, 0, 0, 32, 30,
28, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 11, 3,
0, 0, 0, 27, 26, 25, 19, 20, 23, 24,
21, 22, 17, 18, 15, 16, 12, 13, 14, 38,
0, 31, 29, 38, 38, 0, 33, 40, 0, 10,
0, 38, 34, 39, 0, 0, 0
};
static const short yydefgoto[] = { 75,
10, 11, 38, 43, 42, 41, 71, 66
};
static const short yypact[] = { 12,
-32768,-32768,-32768, 12, 12, 12, 12, 1, 12, 4,
79,-32768,-32768,-32768,-32768, -21, 31, 12,-32768,-32768,
-32768, 12, 12, 12, 12, 12, 12, 12, 12, 12,
12, 12, 12, 12, 12, 12, 12, 30,-32768, 79,
12, 12, 12, 110, 124, 137, 148, 148, 155, 155,
155, 155, 160, 160, -17, -17,-32768,-32768,-32768, 2,
58, 34, 95, 2, 2, 54,-32768,-32768, 55,-32768,
12, 2, 79,-32768, 63, 188,-32768
};
static const short yypgoto[] = {-32768,
180, -4,-32768,-32768,-32768,-32768,-32768, -60
};
#define YYLAST 189
static const short yytable[] = { 12,
13, 14, 15, 68, 69, 16, 64, 35, 36, 37,
-9, 74, 18, 40, 1, 2, 3, 44, 45, 46,
47, 48, 49, 50, 51, 52, 53, 54, 55, 56,
57, 58, 59, 65, 4, 5, 61, 62, 63, 18,
6, 7, 8, 9, 21, 22, 23, 24, 25, 26,
27, 28, 29, 30, 31, 32, 33, 34, 35, 36,
37, 60, 76, 39, 19, 67, 73, 20, 21, 22,
23, 24, 25, 26, 27, 28, 29, 30, 31, 32,
33, 34, 35, 36, 37, 19, 70, 72, 20, 21,
22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
32, 33, 34, 35, 36, 37, 22, 23, 24, 25,
26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
36, 37, 23, 24, 25, 26, 27, 28, 29, 30,
31, 32, 33, 34, 35, 36, 37, 24, 25, 26,
27, 28, 29, 30, 31, 32, 33, 34, 35, 36,
37, 25, 26, 27, 28, 29, 30, 31, 32, 33,
34, 35, 36, 37, 27, 28, 29, 30, 31, 32,
33, 34, 35, 36, 37, 31, 32, 33, 34, 35,
36, 37, 33, 34, 35, 36, 37, 77, 17
};
static const short yycheck[] = { 4,
5, 6, 7, 64, 65, 5, 5, 25, 26, 27,
32, 72, 9, 18, 3, 4, 5, 22, 23, 24,
25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
35, 36, 37, 32, 23, 24, 41, 42, 43, 9,
29, 30, 31, 32, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
27, 32, 0, 33, 7, 8, 71, 10, 11, 12,
13, 14, 15, 16, 17, 18, 19, 20, 21, 22,
23, 24, 25, 26, 27, 7, 33, 33, 10, 11,
12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
22, 23, 24, 25, 26, 27, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
26, 27, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 14, 15, 16,
17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
27, 15, 16, 17, 18, 19, 20, 21, 22, 23,
24, 25, 26, 27, 17, 18, 19, 20, 21, 22,
23, 24, 25, 26, 27, 21, 22, 23, 24, 25,
26, 27, 23, 24, 25, 26, 27, 0, 9
};
/* -*-C-*- Note some compilers choke on comments on `#line' lines. */
#line 3 "/usr/local/lib/bison.simple"
/* Skeleton output parser for bison,
Copyright (C) 1984, 1989, 1990 Bob Corbett and Richard Stallman
This program 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 1, 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef alloca
#ifdef __GNUC__
#define alloca __builtin_alloca
#else /* not GNU C. */
#if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi)
#include <alloca.h>
#else /* not sparc */
#if defined (MSDOS) && !defined (__TURBOC__)
#include <malloc.h>
#else /* not MSDOS, or __TURBOC__ */
#if defined(_AIX)
#include <malloc.h>
#pragma alloca
#else /* not MSDOS, __TURBOC__, or _AIX */
#ifdef __hpux
#ifdef __cplusplus
extern "C" {
void *alloca (unsigned int);
};
#else /* not __cplusplus */
void *alloca ();
#endif /* not __cplusplus */
#endif /* __hpux */
#endif /* not _AIX */
#endif /* not MSDOS, or __TURBOC__ */
#endif /* not sparc. */
#endif /* not GNU C. */
#endif /* alloca not defined. */
/* This is the parser code that is written into each bison parser
when the %semantic_parser declaration is not specified in the grammar.
It was written by Richard Stallman by simplifying the hairy parser
used when %semantic_parser is specified. */
/* Note: there must be only one dollar sign in this file.
It is replaced by the list of actions, each action
as one case of the switch. */
#define yyerrok (yyerrstatus = 0)
#define yyclearin (yychar = YYEMPTY)
#define YYEMPTY -2
#define YYEOF 0
#define YYACCEPT return(0)
#define YYABORT return(1)
#define YYERROR goto yyerrlab1
/* Like YYERROR except do call yyerror.
This remains here temporarily to ease the
transition to the new meaning of YYERROR, for GCC.
Once GCC version 2 has supplanted version 1, this can go. */
#define YYFAIL goto yyerrlab
#define YYRECOVERING() (!!yyerrstatus)
#define YYBACKUP(token, value) \
do \
if (yychar == YYEMPTY && yylen == 1) \
{ yychar = (token), yylval = (value); \
yychar1 = YYTRANSLATE (yychar); \
YYPOPSTACK; \
goto yybackup; \
} \
else \
{ yyerror ("syntax error: cannot back up"); YYERROR; } \
while (0)
#define YYTERROR 1
#define YYERRCODE 256
#ifndef YYPURE
#define YYLEX yylex()
#endif
#ifdef YYPURE
#ifdef YYLSP_NEEDED
#define YYLEX yylex(&yylval, &yylloc)
#else
#define YYLEX yylex(&yylval)
#endif
#endif
/* If nonreentrant, generate the variables here */
#ifndef YYPURE
int yychar; /* the lookahead symbol */
YYSTYPE yylval; /* the semantic value of the */
/* lookahead symbol */
#ifdef YYLSP_NEEDED
YYLTYPE yylloc; /* location data for the lookahead */
/* symbol */
#endif
int yynerrs; /* number of parse errors so far */
#endif /* not YYPURE */
#if YYDEBUG != 0
int yydebug; /* nonzero means print parse trace */
/* Since this is uninitialized, it does not stop multiple parsers
from coexisting. */
#endif
/* YYINITDEPTH indicates the initial size of the parser's stacks */
#ifndef YYINITDEPTH
#define YYINITDEPTH 200
#endif
/* YYMAXDEPTH is the maximum size the stacks can grow to
(effective only if the built-in stack extension method is used). */
#if YYMAXDEPTH == 0
#undef YYMAXDEPTH
#endif
#ifndef YYMAXDEPTH
#define YYMAXDEPTH 10000
#endif
/* Prevent warning if -Wstrict-prototypes. */
#ifdef __GNUC__
int yyparse (void);
#endif
#if __GNUC__ > 1 /* GNU C and GNU C++ define this. */
#define __yy_bcopy(FROM,TO,COUNT) __builtin_memcpy(TO,FROM,COUNT)
#else /* not GNU C or C++ */
#ifndef __cplusplus
/* This is the most reliable way to avoid incompatibilities
in available built-in functions on various systems. */
static void
__yy_bcopy (from, to, count)
char *from;
char *to;
int count;
{
register char *f = from;
register char *t = to;
register int i = count;
while (i-- > 0)
*t++ = *f++;
}
#else /* __cplusplus */
/* This is the most reliable way to avoid incompatibilities
in available built-in functions on various systems. */
static void
__yy_bcopy (char *from, char *to, int count)
{
register char *f = from;
register char *t = to;
register int i = count;
while (i-- > 0)
*t++ = *f++;
}
#endif
#endif
#line 184 "/usr/local/lib/bison.simple"
/* The user can define YYPARSE_PARAM as the name of an argument to be passed
into yyparse. The argument should have type void *.
It should actually point to an object.
Grammar actions can access the variable by casting it
to the proper pointer type. */
#ifdef YYPARSE_PARAM
#define YYPARSE_PARAM_DECL void *YYPARSE_PARAM;
#else
#define YYPARSE_PARAM
#define YYPARSE_PARAM_DECL
#endif
int
yyparse(YYPARSE_PARAM)
YYPARSE_PARAM_DECL
{
register int yystate;
register int yyn;
register short *yyssp;
register YYSTYPE *yyvsp;
int yyerrstatus; /* number of tokens to shift before error messages enabled */
int yychar1 = 0; /* lookahead token as an internal (translated) token number */
short yyssa[YYINITDEPTH]; /* the state stack */
YYSTYPE yyvsa[YYINITDEPTH]; /* the semantic value stack */
short *yyss = yyssa; /* refer to the stacks thru separate pointers */
YYSTYPE *yyvs = yyvsa; /* to allow yyoverflow to reallocate them elsewhere */
#ifdef YYLSP_NEEDED
YYLTYPE yylsa[YYINITDEPTH]; /* the location stack */
YYLTYPE *yyls = yylsa;
YYLTYPE *yylsp;
#define YYPOPSTACK (yyvsp--, yyssp--, yylsp--)
#else
#define YYPOPSTACK (yyvsp--, yyssp--)
#endif
int yystacksize = YYINITDEPTH;
#ifdef YYPURE
int yychar;
YYSTYPE yylval;
int yynerrs;
#ifdef YYLSP_NEEDED
YYLTYPE yylloc;
#endif
#endif
YYSTYPE yyval; /* the variable used to return */
/* semantic values from the action */
/* routines */
int yylen;
#if YYDEBUG != 0
if (yydebug)
fprintf(stderr, "Starting parse\n");
#endif
yystate = 0;
yyerrstatus = 0;
yynerrs = 0;
yychar = YYEMPTY; /* Cause a token to be read. */
/* Initialize stack pointers.
Waste one element of value and location stack
so that they stay on the same level as the state stack.
The wasted elements are never initialized. */
yyssp = yyss - 1;
yyvsp = yyvs;
#ifdef YYLSP_NEEDED
yylsp = yyls;
#endif
/* Push a new state, which is found in yystate . */
/* In all cases, when you get here, the value and location stacks
have just been pushed. so pushing a state here evens the stacks. */
yynewstate:
*++yyssp = yystate;
if (yyssp >= yyss + yystacksize - 1)
{
/* Give user a chance to reallocate the stack */
/* Use copies of these so that the &'s don't force the real ones into memory. */
YYSTYPE *yyvs1 = yyvs;
short *yyss1 = yyss;
#ifdef YYLSP_NEEDED
YYLTYPE *yyls1 = yyls;
#endif
/* Get the current used size of the three stacks, in elements. */
int size = yyssp - yyss + 1;
#ifdef yyoverflow
/* Each stack pointer address is followed by the size of
the data in use in that stack, in bytes. */
#ifdef YYLSP_NEEDED
/* This used to be a conditional around just the two extra args,
but that might be undefined if yyoverflow is a macro. */
yyoverflow("parser stack overflow",
&yyss1, size * sizeof (*yyssp),
&yyvs1, size * sizeof (*yyvsp),
&yyls1, size * sizeof (*yylsp),
&yystacksize);
#else
yyoverflow("parser stack overflow",
&yyss1, size * sizeof (*yyssp),
&yyvs1, size * sizeof (*yyvsp),
&yystacksize);
#endif
yyss = yyss1; yyvs = yyvs1;
#ifdef YYLSP_NEEDED
yyls = yyls1;
#endif
#else /* no yyoverflow */
/* Extend the stack our own way. */
if (yystacksize >= YYMAXDEPTH)
{
yyerror("parser stack overflow");
return 2;
}
yystacksize *= 2;
if (yystacksize > YYMAXDEPTH)
yystacksize = YYMAXDEPTH;
yyss = (short *) alloca (yystacksize * sizeof (*yyssp));
__yy_bcopy ((char *)yyss1, (char *)yyss, size * sizeof (*yyssp));
yyvs = (YYSTYPE *) alloca (yystacksize * sizeof (*yyvsp));
__yy_bcopy ((char *)yyvs1, (char *)yyvs, size * sizeof (*yyvsp));
#ifdef YYLSP_NEEDED
yyls = (YYLTYPE *) alloca (yystacksize * sizeof (*yylsp));
__yy_bcopy ((char *)yyls1, (char *)yyls, size * sizeof (*yylsp));
#endif
#endif /* no yyoverflow */
yyssp = yyss + size - 1;
yyvsp = yyvs + size - 1;
#ifdef YYLSP_NEEDED
yylsp = yyls + size - 1;
#endif
#if YYDEBUG != 0
if (yydebug)
fprintf(stderr, "Stack size increased to %d\n", yystacksize);
#endif
if (yyssp >= yyss + yystacksize - 1)
YYABORT;
}
#if YYDEBUG != 0
if (yydebug)
fprintf(stderr, "Entering state %d\n", yystate);
#endif
goto yybackup;
yybackup:
/* Do appropriate processing given the current state. */
/* Read a lookahead token if we need one and don't already have one. */
/* yyresume: */
/* First try to decide what to do without reference to lookahead token. */
yyn = yypact[yystate];
if (yyn == YYFLAG)
goto yydefault;
/* Not known => get a lookahead token if don't already have one. */
/* yychar is either YYEMPTY or YYEOF
or a valid token in external form. */
if (yychar == YYEMPTY)
{
#if YYDEBUG != 0
if (yydebug)
fprintf(stderr, "Reading a token: ");
#endif
yychar = YYLEX;
}
/* Convert token to internal form (in yychar1) for indexing tables with */
if (yychar <= 0) /* This means end of input. */
{
yychar1 = 0;
yychar = YYEOF; /* Don't call YYLEX any more */
#if YYDEBUG != 0
if (yydebug)
fprintf(stderr, "Now at end of input.\n");
#endif
}
else
{
yychar1 = YYTRANSLATE(yychar);
#if YYDEBUG != 0
if (yydebug)
{
fprintf (stderr, "Next token is %d (%s", yychar, yytname[yychar1]);
/* Give the individual parser a way to print the precise meaning
of a token, for further debugging info. */
#ifdef YYPRINT
YYPRINT (stderr, yychar, yylval);
#endif
fprintf (stderr, ")\n");
}
#endif
}
yyn += yychar1;
if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != yychar1)
goto yydefault;
yyn = yytable[yyn];
/* yyn is what to do for this token type in this state.
Negative => reduce, -yyn is rule number.
Positive => shift, yyn is new state.
New state is final state => don't bother to shift,
just return success.
0, or most negative number => error. */
if (yyn < 0)
{
if (yyn == YYFLAG)
goto yyerrlab;
yyn = -yyn;
goto yyreduce;
}
else if (yyn == 0)
goto yyerrlab;
if (yyn == YYFINAL)
YYACCEPT;
/* Shift the lookahead token. */
#if YYDEBUG != 0
if (yydebug)
fprintf(stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1]);
#endif
/* Discard the token being shifted unless it is eof. */
if (yychar != YYEOF)
yychar = YYEMPTY;
*++yyvsp = yylval;
#ifdef YYLSP_NEEDED
*++yylsp = yylloc;
#endif
/* count tokens shifted since error; after three, turn off error status. */
if (yyerrstatus) yyerrstatus--;
yystate = yyn;
goto yynewstate;
/* Do the default action for the current state. */
yydefault:
yyn = yydefact[yystate];
if (yyn == 0)
goto yyerrlab;
/* Do a reduction. yyn is the number of a rule to reduce with. */
yyreduce:
yylen = yyr2[yyn];
if (yylen > 0)
yyval = yyvsp[1-yylen]; /* implement default value of the action */
#if YYDEBUG != 0
if (yydebug)
{
int i;
fprintf (stderr, "Reducing via rule %d (line %d), ",
yyn, yyrline[yyn]);
/* Print the symbols being reduced, and their result. */
for (i = yyprhs[yyn]; yyrhs[i] > 0; i++)
fprintf (stderr, "%s ", yytname[yyrhs[i]]);
fprintf (stderr, " -> %s\n", yytname[yyr1[yyn]]);
}
#endif
switch (yyn) {
case 1:
#line 177 "cexp.y"
{ expression_value = yyvsp[0].integer.value; ;
break;}
case 3:
#line 183 "cexp.y"
{ if (pedantic)
pedwarn ("comma operator in operand of `#if'");
yyval.integer = yyvsp[0].integer; ;
break;}
case 4:
#line 190 "cexp.y"
{ yyval.integer.value = - yyvsp[0].integer.value;
if ((yyval.integer.value & yyvsp[0].integer.value) < 0 && ! yyvsp[0].integer.unsignedp)
integer_overflow ();
yyval.integer.unsignedp = yyvsp[0].integer.unsignedp; ;
break;}
case 5:
#line 195 "cexp.y"
{ yyval.integer.value = ! yyvsp[0].integer.value;
yyval.integer.unsignedp = 0; ;
break;}
case 6:
#line 198 "cexp.y"
{ yyval.integer = yyvsp[0].integer; ;
break;}
case 7:
#line 200 "cexp.y"
{ yyval.integer.value = ~ yyvsp[0].integer.value;
yyval.integer.unsignedp = yyvsp[0].integer.unsignedp; ;
break;}
case 8:
#line 203 "cexp.y"
{ yyval.integer.value = check_assertion (yyvsp[0].name.address, yyvsp[0].name.length,
0, NULL_PTR);
yyval.integer.unsignedp = 0; ;
break;}
case 9:
#line 207 "cexp.y"
{ keyword_parsing = 1; ;
break;}
case 10:
#line 209 "cexp.y"
{ yyval.integer.value = check_assertion (yyvsp[-4].name.address, yyvsp[-4].name.length,
1, yyvsp[-1].keywords);
keyword_parsing = 0;
yyval.integer.unsignedp = 0; ;
break;}
case 11:
#line 214 "cexp.y"
{ yyval.integer = yyvsp[-1].integer; ;
break;}
case 12:
#line 219 "cexp.y"
{ yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp;
if (yyval.integer.unsignedp)
yyval.integer.value = (unsigned long) yyvsp[-2].integer.value * yyvsp[0].integer.value;
else
{
yyval.integer.value = yyvsp[-2].integer.value * yyvsp[0].integer.value;
if (yyvsp[-2].integer.value
&& (yyval.integer.value / yyvsp[-2].integer.value != yyvsp[0].integer.value
|| (yyval.integer.value & yyvsp[-2].integer.value & yyvsp[0].integer.value) < 0))
integer_overflow ();
} ;
break;}
case 13:
#line 231 "cexp.y"
{ if (yyvsp[0].integer.value == 0)
{
if (!skip_evaluation)
error ("division by zero in #if");
yyvsp[0].integer.value = 1;
}
yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp;
if (yyval.integer.unsignedp)
yyval.integer.value = (unsigned long) yyvsp[-2].integer.value / yyvsp[0].integer.value;
else
{
yyval.integer.value = yyvsp[-2].integer.value / yyvsp[0].integer.value;
if ((yyval.integer.value & yyvsp[-2].integer.value & yyvsp[0].integer.value) < 0)
integer_overflow ();
} ;
break;}
case 14:
#line 247 "cexp.y"
{ if (yyvsp[0].integer.value == 0)
{
if (!skip_evaluation)
error ("division by zero in #if");
yyvsp[0].integer.value = 1;
}
yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp;
if (yyval.integer.unsignedp)
yyval.integer.value = (unsigned long) yyvsp[-2].integer.value % yyvsp[0].integer.value;
else
yyval.integer.value = yyvsp[-2].integer.value % yyvsp[0].integer.value; ;
break;}
case 15:
#line 259 "cexp.y"
{ yyval.integer.value = yyvsp[-2].integer.value + yyvsp[0].integer.value;
yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp;
if (! yyval.integer.unsignedp
&& ! possible_sum_sign (yyvsp[-2].integer.value, yyvsp[0].integer.value,
yyval.integer.value))
integer_overflow (); ;
break;}
case 16:
#line 266 "cexp.y"
{ yyval.integer.value = yyvsp[-2].integer.value - yyvsp[0].integer.value;
yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp;
if (! yyval.integer.unsignedp
&& ! possible_sum_sign (yyval.integer.value, yyvsp[0].integer.value,
yyvsp[-2].integer.value))
integer_overflow (); ;
break;}
case 17:
#line 273 "cexp.y"
{ yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp;
if (yyvsp[0].integer.value < 0 && ! yyvsp[0].integer.unsignedp)
yyval.integer.value = right_shift (&yyvsp[-2].integer, -yyvsp[0].integer.value);
else
yyval.integer.value = left_shift (&yyvsp[-2].integer, yyvsp[0].integer.value); ;
break;}
case 18:
#line 279 "cexp.y"
{ yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp;
if (yyvsp[0].integer.value < 0 && ! yyvsp[0].integer.unsignedp)
yyval.integer.value = left_shift (&yyvsp[-2].integer, -yyvsp[0].integer.value);
else
yyval.integer.value = right_shift (&yyvsp[-2].integer, yyvsp[0].integer.value); ;
break;}
case 19:
#line 285 "cexp.y"
{ yyval.integer.value = (yyvsp[-2].integer.value == yyvsp[0].integer.value);
yyval.integer.unsignedp = 0; ;
break;}
case 20:
#line 288 "cexp.y"
{ yyval.integer.value = (yyvsp[-2].integer.value != yyvsp[0].integer.value);
yyval.integer.unsignedp = 0; ;
break;}
case 21:
#line 291 "cexp.y"
{ yyval.integer.unsignedp = 0;
if (yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp)
yyval.integer.value = (unsigned long) yyvsp[-2].integer.value <= yyvsp[0].integer.value;
else
yyval.integer.value = yyvsp[-2].integer.value <= yyvsp[0].integer.value; ;
break;}
case 22:
#line 297 "cexp.y"
{ yyval.integer.unsignedp = 0;
if (yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp)
yyval.integer.value = (unsigned long) yyvsp[-2].integer.value >= yyvsp[0].integer.value;
else
yyval.integer.value = yyvsp[-2].integer.value >= yyvsp[0].integer.value; ;
break;}
case 23:
#line 303 "cexp.y"
{ yyval.integer.unsignedp = 0;
if (yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp)
yyval.integer.value = (unsigned long) yyvsp[-2].integer.value < yyvsp[0].integer.value;
else
yyval.integer.value = yyvsp[-2].integer.value < yyvsp[0].integer.value; ;
break;}
case 24:
#line 309 "cexp.y"
{ yyval.integer.unsignedp = 0;
if (yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp)
yyval.integer.value = (unsigned long) yyvsp[-2].integer.value > yyvsp[0].integer.value;
else
yyval.integer.value = yyvsp[-2].integer.value > yyvsp[0].integer.value; ;
break;}
case 25:
#line 315 "cexp.y"
{ yyval.integer.value = yyvsp[-2].integer.value & yyvsp[0].integer.value;
yyval.integer.unsignedp = yyvsp[-2].integer.unsignedp || yyvsp[0].integer.unsignedp; ;