#include<mem.cvh>

$input int N;
$assume(N > 10);

struct T {
  int x[N];
  double y[N];
} a[N];

union U {
  int x[N];
  double y[N];
} b[N];

int main() {
  $mem m = &a[0 .. N-1].x[0 .. N-1];
  
  m = $mem_union(m, &a[0 .. N-1].y[0 .. N-1]);
  $assert($mem_contains(m, &a[1 .. N-2].x[1 .. N-2]));
  $assert($mem_contains(m, &a[1 .. N-2].y[1 .. N-2]));
  m = $mem_union(m, &b[0 .. N-1].y[0 .. N-1]); 
  m = $mem_union(m, &b[0 .. N-1].x[0 .. N-1]); 
  $assert($mem_contains(m, &a));
  $assert($mem_contains(m, &b));

  m = &b[0 .. N-1].x[0 .. N-1];  
  m = $mem_union(m, &b[0 .. N-1].y[0 .. N-1]);
  $assert($mem_contains(m, &b[1 .. N-2].x[1 .. N-2]));
  $assert($mem_contains(m, &b[1 .. N-2].y[1 .. N-2]));  
}