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 
21 template <class T>
22 struct some_alloc
23 {
24     typedef T value_type;
25     some_alloc(const some_alloc&);
26     ~some_alloc() noexcept(false);
27 };
28 
29 #endif
30 
31 int 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