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 // <locale>
10 
11 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT -D_LIBCPP_ENABLE_CXX26_REMOVED_WSTRING_CONVERT
12 
13 // wbuffer_convert<Codecvt, Elem, Tr>
14 
15 // XFAIL: no-wide-characters
16 
17 #include <cassert>
18 #include <codecvt>
19 #include <locale>
20 #include <sstream>
21 
main(int,char **)22 int main(int, char**) {
23     std::string storage;
24     {
25         std::ostringstream bytestream;
26         std::wbuffer_convert<std::codecvt_utf8<wchar_t> > mybuf(bytestream.rdbuf());
27         std::wostream mystr(&mybuf);
28         mystr << L"Hello" << std::endl;
29         storage = bytestream.str();
30     }
31     {
32         std::istringstream bytestream(storage);
33         std::wbuffer_convert<std::codecvt_utf8<wchar_t> > mybuf(bytestream.rdbuf());
34         std::wistream mystr(&mybuf);
35         std::wstring ws;
36         mystr >> ws;
37         assert(ws == L"Hello");
38     }
39 
40     return 0;
41 }
42