ceph/src/boost/libs/smart_ptr/test/weak_from_fail.cpp

   1 // Copyright 2020 Peter Dimov
   2 // Distributed under the Boost Software License, Version 1.0.
   3 // https://www.boost.org/LICENSE_1_0.txt
   4
   5 #include <boost/shared_ptr.hpp>
   6 #include <boost/smart_ptr/enable_shared_from.hpp>
   7
   8 struct X: public boost::enable_shared_from
   9 {
  10 };
  11
  12 #if defined(__clang__) && defined(_MSC_VER)
  13 // clang-cl claims that it accepts this code for compatibility
  14 // with msvc, but no version of msvc accepts it
  15 #  pragma clang diagnostic error "-Wmicrosoft-using-decl"
  16 #endif
  17
  18 int main()
  19 {
  20     boost::shared_ptr<X> px( new X );
  21     px->weak_from_this();
  22 }