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/*
* Header file for dc routines
*
* Copyright (C) 1994 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, you can either send email to this
* program's author (see below) or write to: The Free Software Foundation,
* Inc.; 675 Mass Ave. Cambridge, MA 02139, USA.
*/
#ifndef DC_DEFS_H
#define DC_DEFS_H
/* 'I' is a command, and bases 17 and 18 are quite
* unusual, so we limit ourselves to bases 2 to 16
*/
#define DC_IBASE_MAX 16
#define DC_SUCCESS 0
#define DC_DOMAIN_ERROR 1
#define DC_FAIL 2 /* generic failure */
#ifndef __STDC__
# define DC_PROTO(x) ()
# define DC_DECLVOID() ()
# define DC_DECLARG(arglist) arglist
# define DC_DECLSEP ;
# define DC_DECLEND ;
#else /* __STDC__ */
# define DC_PROTO(x) x
# define DC_DECLVOID() (void)
# define DC_DECLARG(arglist) (
# define DC_DECLSEP ,
# define DC_DECLEND )
#endif /* __STDC__ */
typedef enum {DC_FALSE, DC_TRUE} dc_boolean;
/* type discriminant for dc_data */
typedef enum {DC_UNINITIALIZED, DC_NUMBER, DC_STRING} dc_value_type;
/* generic pointer for information hiding */
typedef void *Opaque;
/* only dc-math.c knows what dc_num's *really* look like */
typedef Opaque dc_num;
/* only dc-string.c knows what dc_str's *really* look like */
typedef Opaque dc_str;
/* except for the two implementation-specific modules, all
* dc functions only know of this one generic type of object
*/
typedef struct {
dc_value_type dc_type; /* discriminant for union */
union {
dc_num number;
dc_str string;
} v;
} dc_data;
/* This is dc's only global variable: */
extern const char *progname; /* basename of program invocation */
#endif /* not DC_DEFS_H */
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