// (C) Copyright John Maddock 2023 // 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_CXX23_HDR_EXPECTED // TITLE: C++23 header <expected> unavailable // DESCRIPTION: The standard library does not supply C++23 header <expected> #include <expected> namespace boost_no_cxx23_hdr_expected { int test() { using std::unexpected; using std::bad_expected_access; using std::unexpect_t; using std::unexpect; using std::expected; return 0; } }