1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // UNSUPPORTED: c++03, c++11, c++14, c++17
10 
11 // <sstream>
12 
13 // template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT>>
14 // class basic_stringstream
15 
16 // basic_string<charT, traits, Allocator> str() &&;
17 
18 #include <sstream>
19 #include <cassert>
20 
21 #include "make_string.h"
22 #include "test_macros.h"
23 
24 #define STR(S) MAKE_STRING(CharT, S)
25 
26 template <class CharT>
27 static void test() {
28   {
29     std::basic_stringstream<CharT> ss(STR("testing"));
30     std::basic_string<CharT> s = std::move(ss).str();
31     assert(s == STR("testing"));
32     assert(ss.view().empty());
33   }
34   {
35     std::basic_stringstream<CharT> ss;
36     std::basic_string<CharT> s = std::move(ss).str();
37     assert(s.empty());
38     assert(ss.view().empty());
39   }
40 }
41 
42 int main(int, char**) {
43   test<char>();
44 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
45   test<wchar_t>();
46 #endif
47   return 0;
48 }
49