src/include/errarg.h

   1 // -*- C++ -*-
   2 /* Copyright (C) 1989, 1990, 1991, 1992, 2002 Free Software Foundation, Inc.
   3      Written by James Clark (jjc@jclark.com)
   4
   5 This file is part of groff.
   6
   7 groff is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 groff is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License along
  18 with groff; see the file COPYING.  If not, write to the Free Software
  19 Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
  20
  21 class errarg {
  22   enum { EMPTY, STRING, CHAR, INTEGER, UNSIGNED_INTEGER, DOUBLE } type;
  23   union {
  24     const char *s;
  25     int n;
  26     unsigned int u;
  27     char c;
  28     double d;
  29   };
  30  public:
  31   errarg();
  32   errarg(const char *);
  33   errarg(char);
  34   errarg(unsigned char);
  35   errarg(int);
  36   errarg(unsigned int);
  37   errarg(double);
  38   int empty() const;
  39   void print() const;
  40 };
  41
  42 extern errarg empty_errarg;
  43
  44 extern void errprint(const char *,
  45                      const errarg &arg1 = empty_errarg,
  46                      const errarg &arg2 = empty_errarg,
  47                      const errarg &arg3 = empty_errarg);