ceph/src/boost/libs/config/test/boost_no_cxx17_hdr_variant.ipp

   1 //  (C) Copyright John Maddock 2019
   2
   3 //  Use, modification and distribution are subject to the
   4 //  Boost Software License, Version 1.0. (See accompanying file
   5 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6
   7 //  See http://www.boost.org/libs/config for more information.
   8
   9 //  MACRO:         BOOST_NO_CXX17_HDR_VARIANT
  10 //  TITLE:         C++17 header <variant> unavailable
  11 //  DESCRIPTION:   The standard library does not supply C++17 header <variant>
  12
  13 #include <variant>
  14
  15 namespace boost_no_cxx17_hdr_variant {
  16
  17 int test()
  18 {
  19   using std::variant;
  20   using std::visit;
  21   using std::holds_alternative;
  22   using std::get;
  23   using std::get_if;
  24   using std::monostate;
  25   using std::bad_variant_access;
  26   using std::variant_size;
  27   using std::variant_alternative;
  28   using std::variant_npos;
  29   return 0;
  30 }
  31
  32 }