62 lines
1.3 KiB
C++
62 lines
1.3 KiB
C++
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// Copyright Eric Niebler 2005.
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef STL_ITERATOR_EAN20051028_HPP
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# define STL_ITERATOR_EAN20051028_HPP
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# include <boost/python/detail/prefix.hpp>
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# include <boost/python/object/stl_iterator_core.hpp>
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# include <boost/iterator/iterator_facade.hpp>
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namespace boost { namespace python
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{
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// An STL input iterator over a python sequence
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template<typename ValueT>
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struct stl_input_iterator
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: boost::iterator_facade<
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stl_input_iterator<ValueT>
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, ValueT
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, std::input_iterator_tag
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, ValueT
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>
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{
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stl_input_iterator()
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: impl_()
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{
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}
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// ob is the python sequence
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stl_input_iterator(boost::python::object const &ob)
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: impl_(ob)
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{
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}
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private:
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friend class boost::iterator_core_access;
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void increment()
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{
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this->impl_.increment();
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}
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ValueT dereference() const
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{
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return extract<ValueT>(this->impl_.current().get())();
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}
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bool equal(stl_input_iterator<ValueT> const &that) const
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{
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return this->impl_.equal(that.impl_);
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}
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objects::stl_input_iterator_impl impl_;
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};
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}} // namespace boost::python
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#endif // STL_ITERATOR_EAN20051028_HPP
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