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// <string>
11
12// ~basic_string() // implied noexcept;
13
14#include <string>
15#include <cassert>
16
17#include "test_allocator.h"
18
19#if __has_feature(cxx_noexcept)
20
21template <class T>
22struct some_alloc
23{
24    typedef T value_type;
25    some_alloc(const some_alloc&);
26    ~some_alloc() noexcept(false);
27};
28
29#endif
30
31int main()
32{
33#if __has_feature(cxx_noexcept)
34    {
35        typedef std::string C;
36        static_assert(std::is_nothrow_destructible<C>::value, "");
37    }
38    {
39        typedef std::basic_string<char, std::char_traits<char>, test_allocator<char>> C;
40        static_assert(std::is_nothrow_destructible<C>::value, "");
41    }
42    {
43        typedef std::basic_string<char, std::char_traits<char>, some_alloc<char>> C;
44        static_assert(!std::is_nothrow_destructible<C>::value, "");
45    }
46#endif
47}
48