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// Copyright Eric Niebler 2005.
// 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)
#ifndef STL_ITERATOR_EAN20051028_HPP
# define STL_ITERATOR_EAN20051028_HPP
# include <boost/python/detail/prefix.hpp>
# include <boost/python/object/stl_iterator_core.hpp>
# include <boost/iterator/iterator_facade.hpp>
namespace boost { namespace python
{
// An STL input iterator over a python sequence
template<typename ValueT>
struct stl_input_iterator
: boost::iterator_facade<
stl_input_iterator<ValueT>
, ValueT
, std::input_iterator_tag
, ValueT
>
{
stl_input_iterator()
: impl_()
{
}
// ob is the python sequence
stl_input_iterator(boost::python::object const &ob)
: impl_(ob)
{
}
private:
friend class boost::iterator_core_access;
void increment()
{
this->impl_.increment();
}
ValueT dereference() const
{
return extract<ValueT>(this->impl_.current().get())();
}
bool equal(stl_input_iterator<ValueT> const &that) const
{
return this->impl_.equal(that.impl_);
}
objects::stl_input_iterator_impl impl_;
};
}} // namespace boost::python
#endif // STL_ITERATOR_EAN20051028_HPP
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