gcc/testsuite/c-c++-common/vla-1.c

   1 /* Test that changes to a variable are reflected in a VLA later in the
   2    expression.  */
   3 /* { dg-options "" } */
   4
   5 #ifdef __cplusplus
   6 extern "C"
   7 #endif
   8 void abort();
   9
  10 int i = 4;
  11 int f()
  12 {
  13   return i;
  14 }
  15
  16 int main()
  17 {
  18   if (i+=2, sizeof(*(int(*)[f()])0) != 6*sizeof(int))
  19     abort();
  20   return 0;
  21 }