contrib/grep/lib/assure.h

   1 /* Run-time assert-like macros.
   2
   3    Copyright (C) 2014-2015 Free Software Foundation, Inc.
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 /* Written by Paul Eggert.  */
  19
  20 #ifndef _GL_ASSURE_H
  21 #define _GL_ASSURE_H
  22
  23 #include <assert.h>
  24
  25 /* Check E's value at runtime, and report an error and abort if not.
  26    However, do nothng if NDEBUG is defined.
  27
  28    Unlike standard 'assert', this macro always compiles E even when NDEBUG
  29    is defined, so as to catch typos and avoid some GCC warnings.  */
  30
  31 #ifdef NDEBUG
  32 # define assure(E) ((void) (0 && (E)))
  33 #else
  34 # define assure(E) assert (E)
  35 #endif
  36
  37 #endif