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  1. /*-------------------------------------------------------------------------
  2.   assert.h - header file for assert ANSI routine
  3.  
  4.              Written By -  Sandeep Dutta . sandeep.dutta@usa.net (1999)
  5.  
  6.    This program is free software; you can redistribute it and/or modify it
  7.    under the terms of the GNU General Public License as published by the
  8.    Free Software Foundation; either version 2, or (at your option) any
  9.    later version.
  10.  
  11.    This program is distributed in the hope that it will be useful,
  12.    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14.    GNU General Public License for more details.
  15.  
  16.    You should have received a copy of the GNU General Public License
  17.    along with this program; if not, write to the Free Software
  18.    Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19.  
  20.    In other words, you are welcome to use, share and improve this program.
  21.    You are forbidden to forbid anyone else to use, share and improve
  22.    what you give them.   Help stamp out software-hoarding!
  23. -------------------------------------------------------------------------*/
  24.  
  25. #undef assert
  26.  
  27. #ifdef NDEBUG
  28.  
  29. /* Debugging disabled -- do not evaluate assertions. */
  30. #define assert(x) ((void)0)
  31.  
  32. #else
  33.  
  34. /* Debugging enabled -- verify assertions at run time. */
  35. void _assert(char *, const char *, unsigned int);
  36. #define assert(x) ((x) == 0 ? _assert(#x, __FILE__, __LINE__):(void)0)
  37.  
  38. #endif
  39.