ceph/src/boost/libs/python/example/quickstart/extending.cpp

   1 // Copyright Ralf W. Grosse-Kunstleve 2002-2004. Distributed under the Boost
   2 // Software License, Version 1.0. (See accompanying
   3 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   4
   5 #include <boost/python/class.hpp>
   6 #include <boost/python/module.hpp>
   7 #include <boost/python/def.hpp>
   8 #include <iostream>
   9 #include <string>
  10
  11 namespace { // Avoid cluttering the global namespace.
  12
  13   // A friendly class.
  14   class hello
  15   {
  16     public:
  17       hello(const std::string& country) { this->country = country; }
  18       std::string greet() const { return "Hello from " + country; }
  19     private:
  20       std::string country;
  21   };
  22
  23   // A function taking a hello object as an argument.
  24   std::string invite(const hello& w) {
  25     return w.greet() + "! Please come soon!";
  26   }
  27 }
  28
  29 BOOST_PYTHON_MODULE(extending)
  30 {
  31     using namespace boost::python;
  32     class_<hello>("hello", init<std::string>())
  33         // Add a regular member function.
  34         .def("greet", &hello::greet)
  35         // Add invite() as a member of hello!
  36         .def("invite", invite)
  37         ;
  38
  39     // Also add invite() as a regular function to the module.
  40     def("invite", invite);
  41 }