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