gnu/usr.bin/groff/libgroff/assert.h

   1 // -*- C++ -*-
   2 /* Copyright (C) 1989, 1990 Free Software Foundation, Inc.
   3      Written by James Clark (jjc@jclark.uucp)
   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 1, 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 LICENSE.  If not, write to the Free Software
  19 Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
  20
  21 #ifndef ASSERT_H
  22 #define ASSERT_H
  23 #ifdef __GNUG__
  24 volatile
  25 #endif
  26 void assertion_failed(int, const char *);
  27
  28 inline void do_assert(int expr, int line, const char *file)
  29 {
  30   if (!expr)
  31     assertion_failed(line, file);
  32 }
  33 #endif /* ASSERT_H */
  34
  35 #undef assert
  36
  37 #ifdef NDEBUG
  38 #define assert(ignore) /* as nothing */
  39 #else
  40 #define assert(expr) do_assert(expr, __LINE__, __FILE__)
  41 #endif