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// Copyright Andrew Resch 2009. Use, modification and distribution is
// subject to 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)
#include <boost/python.hpp>
using namespace boost::python;
template<class T1, class T2>
struct pair_to_tuple
{
static PyObject* convert(const std::pair<T1, T2>& p)
{
return incref(make_tuple(p.first, p.second).ptr());
}
};
template<class T1, class T2>
struct tuple_to_pair
{
tuple_to_pair()
{
converter::registry::push_back(
&convertible, &construct, type_id<std::pair<T1, T2> >()
);
}
static void* convertible(PyObject* x)
{
return PyTuple_Check(x) ? x: 0;
}
static void construct(PyObject* x, converter::rvalue_from_python_stage1_data* data)
{
void* storage = ((converter::rvalue_from_python_storage<
std::pair<T1, T2> >*)data)->storage.bytes;
object o(borrowed(x));
std::pair<T1, T2> p;
p.first = extract<T1>(o[0]);
p.second = extract<T2>(o[1]);
new (storage) std::pair<T1, T2>(p);
data->convertible = storage;
}
};
void bind_converters()
{
to_python_converter<std::pair<int, int>, pair_to_tuple<int, int> >();
tuple_to_pair<int, int>();
}
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