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- // Copyright Ralf W. Grosse-Kunstleve 2002-2004. Distributed under 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)
- /*
- This example shows how to make an Extension Class "pickleable".
- The world class below can be fully restored by passing the
- appropriate argument to the constructor. Therefore it is sufficient
- to define the pickle interface method __getinitargs__.
- For more information refer to boost/libs/python/doc/pickle.html.
- */
- #include <boost/python/module.hpp>
- #include <boost/python/def.hpp>
- #include <boost/python/class.hpp>
- #include <boost/python/tuple.hpp>
- #include <string>
- namespace boost_python_test {
- // A friendly class.
- class world
- {
- private:
- std::string country;
- public:
- world(const std::string& _country) {
- this->country = _country;
- }
- std::string greet() const { return "Hello from " + country + "!"; }
- std::string get_country() const { return country; }
- };
- struct world_pickle_suite : boost::python::pickle_suite
- {
- static
- boost::python::tuple
- getinitargs(const world& w)
- {
- return boost::python::make_tuple(w.get_country());
- }
- };
- // To support test of "pickling not enabled" error message.
- struct noop {};
- }
- BOOST_PYTHON_MODULE(pickle1_ext)
- {
- using namespace boost::python;
- using namespace boost_python_test;
- class_<world>("world", init<const std::string&>())
- .def("greet", &world::greet)
- .def_pickle(world_pickle_suite())
- ;
- // To support test of "pickling not enabled" error message.
- class_<noop>("noop");
- }
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