gcc/testsuite/gcc.dg/pr33238.c

   1 /* PR c/33238 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-std=gnu89" } */
   4
   5 void
   6 reverse (void *x, int y, int z)
   7 {
   8   struct { char w[z]; } *p = x, a;
   9   int i, j;
  10   for (i = y - 1, j = 0; j < y / 2; i--, j++)
  11     ({ a = p[i]; p[i] = p[j]; p[j] = a; });
  12 }