lib/vla.h

   1 /* vla.h - variable length arrays
   2
   3    Copyright 2014-2018 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 <https://www.gnu.org/licenses/>.
  17
  18    Written by Paul Eggert.  */
  19
  20 /* A function's argument must point to an array with at least N elements.
  21    Example: 'int main (int argc, char *argv[VLA_ELEMS (argc)]);'.  */
  22
  23 #ifdef __STDC_NO_VLA__
  24 # define VLA_ELEMS(n)
  25 #else
  26 # define VLA_ELEMS(n) static n
  27 #endif