#include <assert.h>
#include <atomic>
#include <string>
#include <thread>
struct X {
  int i;
  std::string s;
};

std::atomic<X*> p;
std::atomic<int> a;

void
create_x()
{
  X* x = new X;
  x->i = 42;
  x->s = "hello";
  a.store(99, std::memory_order_relaxed);
  p.store(x, std::memory_order_release);
}

void
use_x()
{
  X* x;
  while (!(x = p.load(std::memory_order_consume)))
    std::this_thread::sleep_for(std::chrono::microseconds(1));
  assert(x->i == 42);
  assert(x->s == "hello");
  assert(a.load(std::memory_order_relaxed) == 99);
}
int
main()
{
  std::thread t1(create_x);
  std::thread t2(use_x);
  t1.join();
  t2.join();
}