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Diffstat (limited to 'src/cmd/ksh93/include/streval.h')
| -rw-r--r-- | src/cmd/ksh93/include/streval.h | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/src/cmd/ksh93/include/streval.h b/src/cmd/ksh93/include/streval.h new file mode 100644 index 0000000..30008b5 --- /dev/null +++ b/src/cmd/ksh93/include/streval.h @@ -0,0 +1,207 @@ +/*********************************************************************** +* * +* This software is part of the ast package * +* Copyright (c) 1982-2012 AT&T Intellectual Property * +* and is licensed under the * +* Eclipse Public License, Version 1.0 * +* by AT&T Intellectual Property * +* * +* A copy of the License is available at * +* http://www.eclipse.org/org/documents/epl-v10.html * +* (with md5 checksum b35adb5213ca9657e911e9befb180842) * +* * +* Information and Software Systems Research * +* AT&T Research * +* Florham Park NJ * +* * +* David Korn <dgk@research.att.com> * +* * +***********************************************************************/ +#pragma prototyped +#ifndef SEQPOINT +/* + * D. G. Korn + * + * arithmetic expression evaluator + */ + +/* The following only is needed for const */ +#include <ast.h> +#include <math.h> +#include "defs.h" +#if _AST_VERSION >= 20030127L +# include <ast_float.h> +#endif + +#if _ast_fltmax_double +#define LDBL_LLONG_MAX DBL_LLONG_MAX +#define LDBL_ULLONG_MAX DBL_ULLONG_MAX +#define LDBL_LLONG_MIN DBL_LLONG_MIN +#endif + +#ifndef LDBL_LLONG_MAX +# ifdef LLONG_MAX +# define LDBL_LLONG_MAX ((Sfdouble_t)LLONG_MAX) +# else +# ifdef LLONG_MAX +# define LDBL_LLONG_MAX ((Sfdouble_t)LLONG_MAX) +# else +# define LDBL_LLONG_MAX ((Sfdouble_t)((((Sflong_t)1) << (8*sizeof(Sflong_t)-1)) -1 )) +# endif +# endif +#endif +#ifndef LDBL_ULLONG_MAX +# ifdef ULLONG_MAX +# define LDBL_ULLONG_MAX ((Sfdouble_t)ULLONG_MAX) +# else +# define LDBL_ULLONG_MAX (2.*((Sfdouble_t)LDBL_LLONG_MAX)) +# endif +#endif +#ifndef LDBL_LLONG_MIN +# ifdef LLONG_MIN +# define LDBL_LLONG_MIN ((Sfdouble_t)LLONG_MIN) +# else +# define LDBL_LLONG_MIN (-LDBL_LLONG_MAX) +# endif +#endif +#ifndef LDBL_DIG +# define LDBL_DIG DBL_DIG +#endif + +struct lval +{ + Shell_t *shp; + char *value; + char *ovalue; + Sfdouble_t (*fun)(Sfdouble_t,...); + const char *expr; + const void *ptr; + int nosub; + short flag; + short nargs; + short emode; + short level; + short elen; + char eflag; + char isfloat; +}; + +struct mathtab +{ + char fname[16]; + Sfdouble_t (*fnptr)(Sfdouble_t,...); +}; + +typedef struct _arith_ +{ + Shell_t *shp; + unsigned char *code; + const char *expr; + Sfdouble_t (*fun)(const char**,struct lval*,int,Sfdouble_t); + short size; + short staksize; + short emode; + short elen; +} Arith_t; +#define ARITH_COMP 04 /* set when compile separate from execute */ +#define ARITH_ASSIGNOP 010 /* set during assignment operators */ + +#define MAXPREC 15 /* maximum precision level */ +#define SEQPOINT 0200 /* sequence point */ +#define NOASSIGN 0100 /* assignment legal with this operator */ +#define RASSOC 040 /* right associative */ +#define NOFLOAT 020 /* illegal with floating point */ +#define PRECMASK 017 /* precision bit mask */ + +#define A_EOF 1 +#define A_NEQ 2 +#define A_NOT 3 +#define A_MOD 4 +#define A_ANDAND 5 +#define A_AND 6 +#define A_LPAR 7 +#define A_RPAR 8 +#define A_POW 9 +#define A_TIMES 10 +#define A_PLUSPLUS 11 +#define A_PLUS 12 +#define A_COMMA 13 +#define A_MINUSMINUS 14 +#define A_MINUS 15 +#define A_DIV 16 +#define A_LSHIFT 17 +#define A_LE 18 +#define A_LT 19 +#define A_EQ 20 +#define A_ASSIGN 21 +#define A_COLON 22 +#define A_RSHIFT 23 +#define A_GE 24 +#define A_GT 25 +#define A_QCOLON 26 +#define A_QUEST 27 +#define A_XOR 28 +#define A_OROR 29 +#define A_OR 30 +#define A_TILDE 31 +#define A_REG 32 +#define A_DIG 33 +#define A_INCR 34 +#define A_DECR 35 +#define A_PUSHV 36 +#define A_PUSHL 37 +#define A_PUSHN 38 +#define A_PUSHF 39 +#define A_STORE 40 +#define A_POP 41 +#define A_SWAP 42 +#define A_UMINUS 43 +#define A_JMPZ 44 +#define A_JMPNZ 45 +#define A_JMP 46 +#define A_CALL1F 47 +#define A_CALL2F 48 +#define A_CALL3F 49 +#define A_CALL1I 50 +#define A_CALL2I 51 +#define A_DOT 52 +#define A_LIT 53 +#define A_NOTNOT 54 +#define A_ASSIGNOP 55 +#define A_ENUM 56 +#define A_ASSIGNOP1 57 + + +/* define error messages */ +extern const unsigned char strval_precedence[35]; +extern const char strval_states[64]; +extern const char e_moretokens[]; +extern const char e_argcount[]; +extern const char e_paren[]; +extern const char e_badnum[]; +extern const char e_badcolon[]; +extern const char e_recursive[]; +extern const char e_divzero[]; +extern const char e_synbad[]; +extern const char e_notlvalue[]; +extern const char e_function[]; +extern const char e_questcolon[]; +extern const char e_incompatible[]; +extern const char e_domain[]; +extern const char e_overflow[]; +extern const char e_singularity[]; +extern const char e_dict[]; +extern const char e_charconst[]; +extern const struct mathtab shtab_math[]; + +/* function code for the convert function */ + +#define LOOKUP 0 +#define ASSIGN 1 +#define VALUE 2 +#define MESSAGE 3 + +extern Sfdouble_t strval(Shell_t*,const char*,char**,Sfdouble_t(*)(const char**,struct lval*,int,Sfdouble_t),int); +extern Arith_t *arith_compile(Shell_t *,const char*,char**,Sfdouble_t(*)(const char**,struct lval*,int,Sfdouble_t),int); +extern Sfdouble_t arith_exec(Arith_t*); +#endif /* !SEQPOINT */ |