text: //===----------------------------------------------------------------------===//
  //
  //                     The LLVM Compiler Infrastructure
  //
  // This file is dual licensed under the MIT and the University of Illinois Open
  // Source Licenses. See LICENSE.TXT for details.
  //
  //===----------------------------------------------------------------------===//
  
  // <unordered_set>
  
  // ~unordered_set() // implied noexcept;
  
  // UNSUPPORTED: c++98, c++03
  
  #include <unordered_set>
  #include <cassert>
  
  #include "test_macros.h"
  #include "MoveOnly.h"
  #include "test_allocator.h"
  
  template <class T>
  struct some_comp
  {
      typedef T value_type;
      ~some_comp() noexcept(false);
      bool operator()(const T&, const T&) const { return false; }
  };
  
  template <class T>
  struct some_hash
  {
      typedef T value_type;
      some_hash();
      some_hash(const some_hash&);
      ~some_hash() noexcept(false);
  };
  
  int main()
  {
      {
          typedef std::unordered_set<MoveOnly> C;
          static_assert(std::is_nothrow_destructible<C>::value, "");
      }
      {
          typedef std::unordered_set<MoveOnly, std::hash<MoveOnly>,
                             std::equal_to<MoveOnly>, test_allocator<MoveOnly>> C;
          static_assert(std::is_nothrow_destructible<C>::value, "");
      }
      {
          typedef std::unordered_set<MoveOnly, std::hash<MoveOnly>,
                            std::equal_to<MoveOnly>, other_allocator<MoveOnly>> C;
          static_assert(std::is_nothrow_destructible<C>::value, "");
      }
      {
          typedef std::unordered_set<MoveOnly, some_hash<MoveOnly>> C;
          LIBCPP_STATIC_ASSERT(!std::is_nothrow_destructible<C>::value, "");
      }
      {
          typedef std::unordered_set<MoveOnly, std::hash<MoveOnly>,
                                                           some_comp<MoveOnly>> C;
          LIBCPP_STATIC_ASSERT(!std::is_nothrow_destructible<C>::value, "");
      }
  }
  