xref: /llvm-project/libcxx/test/std/input.output/syncstream/osyncstream/members/rdbuf.pass.cpp (revision 7cc72a0a2ec22855572d96411febd4f2c4ac5a49)
1*7cc72a0aSMark de Wever //===----------------------------------------------------------------------===//
2*7cc72a0aSMark de Wever //
3*7cc72a0aSMark de Wever // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*7cc72a0aSMark de Wever // See https://llvm.org/LICENSE.txt for license information.
5*7cc72a0aSMark de Wever // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*7cc72a0aSMark de Wever //
7*7cc72a0aSMark de Wever //===----------------------------------------------------------------------===//
8*7cc72a0aSMark de Wever 
9*7cc72a0aSMark de Wever // UNSUPPORTED: c++03, c++11, c++14, c++17
10*7cc72a0aSMark de Wever // UNSUPPORTED: no-localization
11*7cc72a0aSMark de Wever // UNSUPPORTED: libcpp-has-no-experimental-syncstream
12*7cc72a0aSMark de Wever 
13*7cc72a0aSMark de Wever // <syncstream>
14*7cc72a0aSMark de Wever 
15*7cc72a0aSMark de Wever // template <class charT, class traits, class Allocator>
16*7cc72a0aSMark de Wever // class basic_osyncstream;
17*7cc72a0aSMark de Wever 
18*7cc72a0aSMark de Wever // syncbuf_type* rdbuf() const noexcept
19*7cc72a0aSMark de Wever 
20*7cc72a0aSMark de Wever #include <syncstream>
21*7cc72a0aSMark de Wever #include <sstream>
22*7cc72a0aSMark de Wever #include <cassert>
23*7cc72a0aSMark de Wever 
24*7cc72a0aSMark de Wever #include "test_macros.h"
25*7cc72a0aSMark de Wever 
26*7cc72a0aSMark de Wever template <class CharT>
test()27*7cc72a0aSMark de Wever void test() {
28*7cc72a0aSMark de Wever   const std::basic_osyncstream<CharT> out{nullptr};
29*7cc72a0aSMark de Wever   assert(out.rdbuf() != nullptr);
30*7cc72a0aSMark de Wever   ASSERT_NOEXCEPT(out.rdbuf());
31*7cc72a0aSMark de Wever }
32*7cc72a0aSMark de Wever 
main(int,char **)33*7cc72a0aSMark de Wever int main(int, char**) {
34*7cc72a0aSMark de Wever   test<char>();
35*7cc72a0aSMark de Wever #ifndef TEST_HAS_NO_WIDE_CHARACTERS
36*7cc72a0aSMark de Wever   test<wchar_t>();
37*7cc72a0aSMark de Wever #endif
38*7cc72a0aSMark de Wever 
39*7cc72a0aSMark de Wever   return 0;
40*7cc72a0aSMark de Wever }
41