ceph/src/boost/libs/signals/test/swap_test.cpp

   1 //      https://svn.boost.org/trac/boost/ticket/5521
   2 //              claims a linker error for this.
   3
   4 #include <iostream>
   5 #include <boost/signal.hpp>
   6 #include <boost/signals/connection.hpp>
   7
   8 struct HelloWorld
   9 {
  10   void operator()() const
  11   {
  12     std::cout << "Hello, World!" << std::endl;
  13   }
  14 };
  15
  16
  17 int main ( int argc, char *argv [] ) {
  18         boost::signal<void ()> sig;
  19         boost::signals::scoped_connection c1, c2;
  20
  21         c1 = sig.connect ( HelloWorld ());
  22         std::swap ( c1, c2 );
  23         return 0;
  24         }