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 // UNSUPPORTED: no-localization 11 // UNSUPPORTED: libcpp-has-no-experimental-syncstream 12 13 // <syncstream> 14 15 // template <class charT, class traits, class Allocator> 16 // class basic_osyncstream; 17 18 // syncbuf_type* rdbuf() const noexcept 19 20 #include <syncstream> 21 #include <sstream> 22 #include <cassert> 23 24 #include "test_macros.h" 25 26 template <class CharT> test()27void test() { 28 const std::basic_osyncstream<CharT> out{nullptr}; 29 assert(out.rdbuf() != nullptr); 30 ASSERT_NOEXCEPT(out.rdbuf()); 31 } 32 main(int,char **)33int main(int, char**) { 34 test<char>(); 35 #ifndef TEST_HAS_NO_WIDE_CHARACTERS 36 test<wchar_t>(); 37 #endif 38 39 return 0; 40 } 41