Safe Hash Unordered_map

auto random_address = [] { char *p = new char; delete p; return (uint64_t) p; };

struct safe_hash32 {
  static unsigned hash32(unsigned x) {
    x = (x ^ (x >> 16)) * 0x45d9f3b;
    x = (x ^ (x >> 16)) * 0x45d9f3b;
    return x ^ (x >> 16);
  }
  unsigned operator()(unsigned x) const {
    static const unsigned FIXED_RANDOM = hash32(chrono::steady_clock::now().time_since_epoch().count() * (random_address() | 1));
    return hash32(x ^ FIXED_RANDOM);
  }
};
unordered_map<unsigned int, int ,safe_hash32> mp;