cmake/TestFileOffsetBits.c

   1 /*
   2  * $Id$
   3  *
   4  * This code was copied from http://www.gromacs.org/
   5  * and its toplevel COPYING file starts with:
   6  *
   7  * GROMACS is free software, distributed under the GNU General Public License
   8  * (GPL) Version 2.
   9  */
  10
  11 #include <sys/types.h>
  12
  13 int main(int argc, char **argv)
  14 {
  15   /* Cause a compile-time error if off_t is smaller than 64 bits */
  16 #define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
  17   int off_t_is_large[ (LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1 ];
  18   return 0;
  19 }
  20