errarg.h revision 75584 
1// -*- C++ -*-
2/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
3     Written by James Clark (jjc@jclark.com)
4
5This file is part of groff.
6
7groff is free software; you can redistribute it and/or modify it under
8the terms of the GNU General Public License as published by the Free
9Software Foundation; either version 2, or (at your option) any later
10version.
11
12groff is distributed in the hope that it will be useful, but WITHOUT ANY
13WARRANTY; without even the implied warranty of MERCHANTABILITY or
14FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
15for more details.
16
17You should have received a copy of the GNU General Public License along
18with groff; see the file COPYING.  If not, write to the Free Software
19Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
20
21class errarg {
22  enum { EMPTY, STRING, CHAR, INTEGER, DOUBLE } type;
23  union {
24    const char *s;
25    int n;
26    char c;
27    double d;
28  };
29 public:
30  errarg();
31  errarg(const char *);
32  errarg(char);
33  errarg(unsigned char);
34  errarg(int);
35  errarg(double);
36  int empty() const;
37  void print() const;
38};
39
40extern errarg empty_errarg;
41
42extern void errprint(const char *,
43		     const errarg &arg1 = empty_errarg,
44		     const errarg &arg2 = empty_errarg,
45		     const errarg &arg3 = empty_errarg);
46
47