include/errarg.h

   1 /*@
   2  * Copyright (c) 2014 - 2017 Steffen (Daode) Nurpmeso <steffen@sdaoden.eu>.
   3  *
   4  * Copyright (C) 1989 - 1992, 2002 Free Software Foundation, Inc.
   5  *      Written by James Clark (jjc@jclark.com)
   6  *
   7  * This 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  * This 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 #ifndef _ERRARG_H
  22 #define _ERRARG_H
  23
  24 class errarg
  25 {
  26   enum { EMPTY, STRING, CHAR, INTEGER, UNSIGNED_INTEGER, DOUBLE } type;
  27   union {
  28     const char *s;
  29     int n;
  30     unsigned int u;
  31     char c;
  32     double d;
  33   };
  34
  35 public:
  36   errarg();
  37   errarg(const char *);
  38   errarg(char);
  39   errarg(unsigned char);
  40   errarg(int);
  41   errarg(unsigned int);
  42   errarg(double);
  43   int empty() const;
  44   void print() const;
  45 };
  46
  47 extern errarg empty_errarg;
  48
  49 extern void errprint(const char *,
  50                      const errarg &arg1 = empty_errarg,
  51                      const errarg &arg2 = empty_errarg,
  52                      const errarg &arg3 = empty_errarg);
  53
  54 #endif // _ERRARG_H
  55 // s-it2-mode