// (C) Copyright John Maddock 2021 // Use, modification and distribution are subject to the // Boost Software License, Version 1.0. (See accompanying file // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // See http://www.boost.org/libs/config for more information. // MACRO: BOOST_NO_CXX20_HDR_SYNCSTREAM // TITLE: C++20 <syncstream> header is either not present or too broken to be used // DESCRIPTION: The compiler does not support the C++20 header <syncstream> #include <syncstream> namespace boost_no_cxx20_hdr_syncstream { using std::basic_syncbuf; using std::basic_osyncstream; using std::syncbuf; using std::wsyncbuf; using std::osyncstream; using std::wosyncstream; int test() { return 0; } }