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 // streambuf *rdbuf(streambuf *bytebuf);
16 
17 // XFAIL: no-wide-characters
18 
19 #include <locale>
20 #include <codecvt>
21 #include <sstream>
22 #include <cassert>
23 
24 #include "test_macros.h"
25 
main(int,char **)26 int main(int, char**)
27 {
28     typedef std::wbuffer_convert<std::codecvt_utf8<wchar_t> > B;
29     {
30         std::stringstream s;
31         B b;
32         assert(b.rdbuf() == nullptr);
33         b.rdbuf(s.rdbuf());
34         assert(b.rdbuf() == s.rdbuf());
35     }
36 
37   return 0;
38 }
39