diff options
Diffstat (limited to 'dc/dc.h')
| -rw-r--r-- | dc/dc.h | 82 |
1 files changed, 82 insertions, 0 deletions
@@ -0,0 +1,82 @@ +/* + * Header file for dc routines + * + * Copyright (C) 1994, 1997, 1998 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. + * 59 Temple Place, Suite 330 + * Boston, MA 02111 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_TOSS, DC_KEEP} dc_discard; +typedef enum {DC_NONL, DC_WITHNL} dc_newline; + + +/* type discriminant for dc_data */ +typedef enum {DC_UNINITIALIZED, DC_NUMBER, DC_STRING} dc_value_type; + +/* only numeric.c knows what dc_num's *really* look like */ +typedef struct dc_number *dc_num; + +/* only string.c knows what dc_str's *really* look like */ +typedef struct dc_string *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 */ |