dtor_noexcept.pass.cpp (1418B)
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 // UNSUPPORTED: c++98, c++03 11 12 // <string> 13 14 // ~basic_string() // implied noexcept; 15 16 #include <string> 17 #include <cassert> 18 19 #include "test_macros.h" 20 #include "test_allocator.h" 21 22 template <class T> 23 struct throwing_alloc 24 { 25 typedef T value_type; 26 throwing_alloc(const throwing_alloc&); 27 T *allocate(size_t); 28 ~throwing_alloc() noexcept(false); 29 }; 30 31 // Test that it's possible to take the address of basic_string's destructors 32 // by creating globals which will register their destructors with cxa_atexit. 33 std::string s; 34 std::wstring ws; 35 36 int main() 37 { 38 { 39 typedef std::string C; 40 static_assert(std::is_nothrow_destructible<C>::value, ""); 41 } 42 { 43 typedef std::basic_string<char, std::char_traits<char>, test_allocator<char>> C; 44 static_assert(std::is_nothrow_destructible<C>::value, ""); 45 } 46 #if defined(_LIBCPP_VERSION) 47 { 48 typedef std::basic_string<char, std::char_traits<char>, throwing_alloc<char>> C; 49 static_assert(!std::is_nothrow_destructible<C>::value, ""); 50 } 51 #endif // _LIBCPP_VERSION 52 }