python/include/boost/python/stl_iterator.hpp at develop · boostorg/python · GitHub

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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

python/include/boost/python/stl_iterator.hpp at develop · boostorg/python · GitHub

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