📄 calculator.tab.c
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/* A Bison parser, made by GNU Bison 2.1. */
/* Skeleton parser for Yacc-like parsing with Bison,
Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
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 2, 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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
/* As a special exception, when this file is copied by Bison into a
Bison output file, you may use that output file without restriction.
This special exception was added by the Free Software Foundation
in version 1.24 of Bison. */
/* Written by Richard Stallman by simplifying the original so called
``semantic'' parser. */
/* All symbols defined below should begin with yy or YY, to avoid
infringing on user name space. This should be done even for local
variables, as they might otherwise be expanded by user macros.
There are some unavoidable exceptions within include files to
define necessary library symbols; they are noted "INFRINGES ON
USER NAME SPACE" below. */
/* Identify Bison output. */
#define YYBISON 1
/* Bison version. */
#define YYBISON_VERSION "2.1"
/* Skeleton name. */
#define YYSKELETON_NAME "yacc.c"
/* Pure parsers. */
#define YYPURE 0
/* Using locations. */
#define YYLSP_NEEDED 0
/* Tokens. */
#ifndef YYTOKENTYPE
# define YYTOKENTYPE
/* Put the tokens into the symbol table, so that GDB and other debuggers
know about them. */
enum yytokentype {
NUM = 258,
VAR = 259,
FNCT = 260,
NEG = 261
};
#endif
/* Tokens. */
#define NUM 258
#define VAR 259
#define FNCT 260
#define NEG 261
/* Copy the first part of user declarations. */
#line 1 "C:\\Documents and Settings\\Administrator\\桌面\\编译原理课程设计\\Calculator.y"
#include<math.h> /* For math functions,sin(),cos(),etc.*/
#include"Calculator.h" /* contains definition of 'synrec'.*/
#include"Calculator.c"
int yylex(void);
void yyerror(char const*);
/* Enabling traces. */
#ifndef YYDEBUG
# define YYDEBUG 0
#endif
/* Enabling verbose error messages. */
#ifdef YYERROR_VERBOSE
# undef YYERROR_VERBOSE
# define YYERROR_VERBOSE 1
#else
# define YYERROR_VERBOSE 0
#endif
/* Enabling the token table. */
#ifndef YYTOKEN_TABLE
# define YYTOKEN_TABLE 0
#endif
#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
#line 8 "C:\\Documents and Settings\\Administrator\\桌面\\编译原理课程设计\\Calculator.y"
typedef union YYSTYPE {
number val; /* For returning numbers.*/
symrec *tptr; /* For returning symbol-table pointers.*/
} YYSTYPE;
/* Line 196 of yacc.c. */
#line 110 "Calculator.tab.c"
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
# define YYSTYPE_IS_DECLARED 1
# define YYSTYPE_IS_TRIVIAL 1
#endif
/* Copy the second part of user declarations. */
/* Line 219 of yacc.c. */
#line 122 "Calculator.tab.c"
#if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__)
# define YYSIZE_T __SIZE_TYPE__
#endif
#if ! defined (YYSIZE_T) && defined (size_t)
# define YYSIZE_T size_t
#endif
#if ! defined (YYSIZE_T) && (defined (__STDC__) || defined (__cplusplus))
# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
# define YYSIZE_T size_t
#endif
#if ! defined (YYSIZE_T)
# define YYSIZE_T unsigned int
#endif
#ifndef YY_
# if YYENABLE_NLS
# if ENABLE_NLS
# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
# define YY_(msgid) dgettext ("bison-runtime", msgid)
# endif
# endif
# ifndef YY_
# define YY_(msgid) msgid
# endif
#endif
#if ! defined (yyoverflow) || YYERROR_VERBOSE
/* The parser invokes alloca or malloc; define the necessary symbols. */
# ifdef YYSTACK_USE_ALLOCA
# if YYSTACK_USE_ALLOCA
# ifdef __GNUC__
# define YYSTACK_ALLOC __builtin_alloca
# else
# define YYSTACK_ALLOC alloca
# if defined (__STDC__) || defined (__cplusplus)
# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
# define YYINCLUDED_STDLIB_H
# endif
# endif
# endif
# endif
# ifdef YYSTACK_ALLOC
/* Pacify GCC's `empty if-body' warning. */
# define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
# ifndef YYSTACK_ALLOC_MAXIMUM
/* The OS might guarantee only one guard page at the bottom of the stack,
and a page size can be as small as 4096 bytes. So we cannot safely
invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
to allow for a few compiler-allocated temporary stack slots. */
# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2005 */
# endif
# else
# define YYSTACK_ALLOC YYMALLOC
# define YYSTACK_FREE YYFREE
# ifndef YYSTACK_ALLOC_MAXIMUM
# define YYSTACK_ALLOC_MAXIMUM ((YYSIZE_T) -1)
# endif
# ifdef __cplusplus
extern "C" {
# endif
# ifndef YYMALLOC
# define YYMALLOC malloc
# if (! defined (malloc) && ! defined (YYINCLUDED_STDLIB_H) \
&& (defined (__STDC__) || defined (__cplusplus)))
void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
# endif
# endif
# ifndef YYFREE
# define YYFREE free
# if (! defined (free) && ! defined (YYINCLUDED_STDLIB_H) \
&& (defined (__STDC__) || defined (__cplusplus)))
void free (void *); /* INFRINGES ON USER NAME SPACE */
# endif
# endif
# ifdef __cplusplus
}
# endif
# endif
#endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */
#if (! defined (yyoverflow) \
&& (! defined (__cplusplus) \
|| (defined (YYSTYPE_IS_TRIVIAL) && YYSTYPE_IS_TRIVIAL)))
/* A type that is properly aligned for any stack member. */
union yyalloc
{
short int yyss;
YYSTYPE yyvs;
};
/* The size of the maximum gap between one aligned stack and the next. */
# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
/* The size of an array large to enough to hold all stacks, each with
N elements. */
# define YYSTACK_BYTES(N) \
((N) * (sizeof (short int) + sizeof (YYSTYPE)) \
+ YYSTACK_GAP_MAXIMUM)
/* Copy COUNT objects from FROM to TO. The source and destination do
not overlap. */
# ifndef YYCOPY
# if defined (__GNUC__) && 1 < __GNUC__
# define YYCOPY(To, From, Count) \
__builtin_memcpy (To, From, (Count) * sizeof (*(From)))
# else
# define YYCOPY(To, From, Count) \
do \
{ \
YYSIZE_T yyi; \
for (yyi = 0; yyi < (Count); yyi++) \
(To)[yyi] = (From)[yyi]; \
} \
while (0)
# endif
# endif
/* Relocate STACK from its old location to the new one. The
local variables YYSIZE and YYSTACKSIZE give the old and new number of
elements in the stack, and YYPTR gives the new location of the
stack. Advance YYPTR to a properly aligned location for the next
stack. */
# define YYSTACK_RELOCATE(Stack) \
do \
{ \
YYSIZE_T yynewbytes; \
YYCOPY (&yyptr->Stack, Stack, yysize); \
Stack = &yyptr->Stack; \
yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
yyptr += yynewbytes / sizeof (*yyptr); \
} \
while (0)
#endif
#if defined (__STDC__) || defined (__cplusplus)
typedef signed char yysigned_char;
#else
typedef short int yysigned_char;
#endif
/* YYFINAL -- State number of the termination state. */
#define YYFINAL 3
/* YYLAST -- Last index in YYTABLE. */
#define YYLAST 77
/* YYNTOKENS -- Number of terminals. */
#define YYNTOKENS 17
/* YYNNTS -- Number of nonterminals. */
#define YYNNTS 4
/* YYNRULES -- Number of rules. */
#define YYNRULES 19
/* YYNRULES -- Number of states. */
#define YYNSTATES 38
/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
#define YYUNDEFTOK 2
#define YYMAXUTOK 261
#define YYTRANSLATE(YYX) \
((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
static const unsigned char yytranslate[] =
{
0, 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, 14, 2, 2, 2, 2,
15, 16, 9, 8, 2, 7, 2, 10, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 6, 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, 12, 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, 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, 11
};
#if YYDEBUG
/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
YYRHS. */
static const unsigned char yyprhs[] =
{
0, 0, 3, 4, 6, 9, 11, 16, 20, 23,
25, 27, 31, 36, 40, 44, 48, 52, 55, 59
};
/* YYRHS -- A `-1'-separated list of the rules' RHS. */
static const yysigned_char yyrhs[] =
{
18, 0, -1, -1, 13, -1, 18, 19, -1, 13,
-1, 4, 6, 20, 13, -1, 20, 14, 13, -1,
1, 13, -1, 3, -1, 4, -1, 4, 6, 20,
-1, 5, 15, 20, 16, -1, 20, 8, 20, -1,
20, 7, 20, -1, 20, 9, 20, -1, 20, 10,
20, -1, 7, 20, -1, 20, 12, 20, -1, 15,
20, 16, -1
};
/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
static const unsigned char yyrline[] =
{
0, 21, 21, 22, 23, 25, 26, 28, 29, 31,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41
};
#endif
#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
First, the terminals, then, starting at YYNTOKENS, nonterminals. */
static const char *const yytname[] =
{
"$end", "error", "$undefined", "NUM", "VAR", "FNCT", "'='", "'-'",
"'+'", "'*'", "'/'", "NEG", "'^'", "'\\n'", "'#'", "'('", "')'",
"$accept", "input", "line", "exp", 0
};
#endif
# ifdef YYPRINT
/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
token YYLEX-NUM. */
static const unsigned short int yytoknum[] =
{
0, 256, 257, 258, 259, 260, 61, 45, 43, 42,
47, 261, 94, 10, 35, 40, 41
};
# endif
/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
static const unsigned char yyr1[] =
{
0, 17, 18, 18, 18, 19, 19, 19, 19, 20,
20, 20, 20, 20, 20, 20, 20, 20, 20, 20
};
/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
static const unsigned char yyr2[] =
{
0, 2, 0, 1, 2, 1, 4, 3, 2, 1,
1, 3, 4, 3, 3, 3, 3, 2, 3, 3
};
/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
STATE-NUM when YYTABLE doesn't specify something else to do. Zero
means the default is an error. */
static const unsigned char yydefact[] =
{
2, 3, 0, 1, 0, 9, 10, 0, 0, 5,
0, 4, 0, 8, 0, 0, 10, 17, 0, 0,
0, 0, 0, 0, 0, 11, 0, 0, 19, 14,
13, 15, 16, 18, 7, 6, 12, 11
};
/* YYDEFGOTO[NTERM-NUM]. */
static const yysigned_char yydefgoto[] =
{
-1, 2, 11, 12
};
/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
STATE-NUM. */
#define YYPACT_NINF -13
static const yysigned_char yypact[] =
{
-12, -13, 17, -13, -10, -13, -2, -7, 22, -13,
22, -13, 46, -13, 22, 22, -1, -3, 26, 22,
22, 22, 22, 22, 3, 54, 36, 22, -13, 65,
65, -3, -3, -3, -13, -13, -13, 61
};
/* YYPGOTO[NTERM-NUM]. */
static const yysigned_char yypgoto[] =
{
-13, -13, -13, -8
};
/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
positive, shift that token. If negative, reduce the rule which
number is the opposite. If zero, do what YYDEFACT says.
If YYTABLE_NINF, syntax error. */
#define YYTABLE_NINF -1
static const unsigned char yytable[] =
{
17, 1, 18, 13, 14, 27, 25, 26, 15, 23,
0, 29, 30, 31, 32, 33, 34, 3, 4, 37,
5, 6, 7, 0, 8, 5, 16, 7, 0, 8,
9, 0, 10, 19, 20, 21, 22, 10, 23, 0,
0, 0, 28, 19, 20, 21, 22, 0, 23, 0,
0, 0, 36, 19, 20, 21, 22, 0, 23, 0,
24, 19, 20, 21, 22, 0, 23, 35, 19, 20,
21, 22, 0, 23, 21, 22, 0, 23
};
static const yysigned_char yycheck[] =
{
8, 13, 10, 13, 6, 6, 14, 15, 15, 12,
-1, 19, 20, 21, 22, 23, 13, 0, 1, 27,
3, 4, 5, -1, 7, 3, 4, 5, -1, 7,
13, -1, 15, 7, 8, 9, 10, 15, 12, -1,
-1, -1, 16, 7, 8, 9, 10, -1, 12, -1,
-1, -1, 16, 7, 8, 9, 10, -1, 12, -1,
14, 7, 8, 9, 10, -1, 12, 13, 7, 8,
9, 10, -1, 12, 9, 10, -1, 12
};
/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
symbol of state STATE-NUM. */
static const unsigned char yystos[] =
{
0, 13, 18, 0, 1, 3, 4, 5, 7, 13,
15, 19, 20, 13, 6, 15, 4, 20, 20, 7,
8, 9, 10, 12, 14, 20, 20, 6, 16, 20,
20, 20, 20, 20, 13, 13, 16, 20
};
#define yyerrok (yyerrstatus = 0)
#define yyclearin (yychar = YYEMPTY)
#define YYEMPTY (-2)
#define YYEOF 0
#define YYACCEPT goto yyacceptlab
#define YYABORT goto yyabortlab
#define YYERROR goto yyerrorlab
/* 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); \
yytoken = YYTRANSLATE (yychar); \
YYPOPSTACK; \
goto yybackup; \
} \
else \
{ \
yyerror (YY_("syntax error: cannot back up")); \
YYERROR; \
} \
while (0)
#define YYTERROR 1
#define YYERRCODE 256
/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
If N is 0, then set CURRENT to the empty location which ends
the previous symbol: RHS[0] (always defined). */
#define YYRHSLOC(Rhs, K) ((Rhs)[K])
#ifndef YYLLOC_DEFAULT
# define YYLLOC_DEFAULT(Current, Rhs, N) \
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