test/std/containers/unord/unord.set/unord.set.cnstr/dtor_noexcept.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is dual licensed under the MIT and the University of Illinois Open
   6 // Source Licenses. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 // <unordered_set>
  11
  12 // ~unordered_set() // implied noexcept;
  13
  14 // UNSUPPORTED: c++98, c++03
  15
  16 #include <unordered_set>
  17 #include <cassert>
  18
  19 #include "test_macros.h"
  20 #include "MoveOnly.h"
  21 #include "test_allocator.h"
  22
  23 template <class T>
  24 struct some_comp
  25 {
  26     typedef T value_type;
  27     ~some_comp() noexcept(false);
  28     bool operator()(const T&, const T&) const { return false; }
  29 };
  30
  31 template <class T>
  32 struct some_hash
  33 {
  34     typedef T value_type;
  35     some_hash();
  36     some_hash(const some_hash&);
  37     ~some_hash() noexcept(false);
  38 };
  39
  40 int main()
  41 {
  42     {
  43         typedef std::unordered_set<MoveOnly> C;
  44         static_assert(std::is_nothrow_destructible<C>::value, "");
  45     }
  46     {
  47         typedef std::unordered_set<MoveOnly, std::hash<MoveOnly>,
  48                            std::equal_to<MoveOnly>, test_allocator<MoveOnly>> C;
  49         static_assert(std::is_nothrow_destructible<C>::value, "");
  50     }
  51     {
  52         typedef std::unordered_set<MoveOnly, std::hash<MoveOnly>,
  53                           std::equal_to<MoveOnly>, other_allocator<MoveOnly>> C;
  54         static_assert(std::is_nothrow_destructible<C>::value, "");
  55     }
  56     {
  57         typedef std::unordered_set<MoveOnly, some_hash<MoveOnly>> C;
  58         LIBCPP_STATIC_ASSERT(!std::is_nothrow_destructible<C>::value, "");
  59     }
  60     {
  61         typedef std::unordered_set<MoveOnly, std::hash<MoveOnly>,
  62                                                          some_comp<MoveOnly>> C;
  63         LIBCPP_STATIC_ASSERT(!std::is_nothrow_destructible<C>::value, "");
  64     }
  65 }