| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++03, c++11, c++14, c++17 |
| // UNSUPPORTED: no-localization |
| // UNSUPPORTED: libcpp-has-no-experimental-syncstream |
| |
| // <syncstream> |
| |
| // template <class charT, class traits, class Allocator> |
| // class basic_osyncstream; |
| |
| // void emit(); |
| |
| #include <syncstream> |
| #include <sstream> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| template <class CharT> |
| void test() { |
| using OS = std::basic_osyncstream<CharT>; |
| using SS = std::basic_ostringstream<CharT>; |
| CharT c = 'f'; |
| |
| SS ss; |
| OS out(ss); |
| out << c; |
| assert(ss.str().empty()); |
| out.emit(); |
| assert(ss.str()[0] == c); |
| } |
| |
| int main(int, char**) { |
| test<char>(); |
| #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
| test<wchar_t>(); |
| #endif |
| } |