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diff --git a/boost/compute/iterator/constant_iterator.hpp b/boost/compute/iterator/constant_iterator.hpp
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+//---------------------------------------------------------------------------//
+// Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
+//
+// 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
+//
+// See http://boostorg.github.com/compute for more information.
+//---------------------------------------------------------------------------//
+
+#ifndef BOOST_COMPUTE_ITERATOR_CONSTANT_ITERATOR_HPP
+#define BOOST_COMPUTE_ITERATOR_CONSTANT_ITERATOR_HPP
+
+#include <string>
+#include <cstddef>
+#include <iterator>
+
+#include <boost/config.hpp>
+#include <boost/iterator/iterator_facade.hpp>
+
+#include <boost/compute/detail/meta_kernel.hpp>
+#include <boost/compute/type_traits/is_device_iterator.hpp>
+
+namespace boost {
+namespace compute {
+
+// forward declaration for constant_iterator<T>
+template<class T> class constant_iterator;
+
+namespace detail {
+
+// helper class which defines the iterator_facade super-class
+// type for constant_iterator<T>
+template<class T>
+class constant_iterator_base
+{
+public:
+    typedef ::boost::iterator_facade<
+        ::boost::compute::constant_iterator<T>,
+        T,
+        ::std::random_access_iterator_tag
+    > type;
+};
+
+} // end detail namespace
+
+/// \class constant_iterator
+/// \brief An iterator with a constant value.
+///
+/// The constant_iterator class provides an iterator which returns a constant
+/// value when dereferenced.
+///
+/// For example, this could be used to implement the fill() algorithm in terms
+/// of the copy() algorithm by copying from a range of constant iterators:
+///
+/// \snippet test/test_constant_iterator.cpp fill_with_copy
+///
+/// \see make_constant_iterator()
+template<class T>
+class constant_iterator : public detail::constant_iterator_base<T>::type
+{
+public:
+    typedef typename detail::constant_iterator_base<T>::type super_type;
+    typedef typename super_type::reference reference;
+    typedef typename super_type::difference_type difference_type;
+
+    constant_iterator(const T &value, size_t index = 0)
+        : m_value(value),
+          m_index(index)
+    {
+    }
+
+    constant_iterator(const constant_iterator<T> &other)
+        : m_value(other.m_value),
+          m_index(other.m_index)
+    {
+    }
+
+    constant_iterator<T>& operator=(const constant_iterator<T> &other)
+    {
+        if(this != &other){
+            m_value = other.m_value;
+            m_index = other.m_index;
+        }
+
+        return *this;
+    }
+
+    ~constant_iterator()
+    {
+    }
+
+    size_t get_index() const
+    {
+        return m_index;
+    }
+
+    /// \internal_
+    template<class Expr>
+    detail::meta_kernel_literal<T> operator[](const Expr &expr) const
+    {
+        (void) expr;
+
+        return detail::meta_kernel::make_lit<T>(m_value);
+    }
+
+private:
+    friend class ::boost::iterator_core_access;
+
+    /// \internal_
+    reference dereference() const
+    {
+        return m_value;
+    }
+
+    /// \internal_
+    bool equal(const constant_iterator<T> &other) const
+    {
+        return m_value == other.m_value && m_index == other.m_index;
+    }
+
+    /// \internal_
+    void increment()
+    {
+        m_index++;
+    }
+
+    /// \internal_
+    void decrement()
+    {
+        m_index--;
+    }
+
+    /// \internal_
+    void advance(difference_type n)
+    {
+        m_index = static_cast<size_t>(static_cast<difference_type>(m_index) + n);
+    }
+
+    /// \internal_
+    difference_type distance_to(const constant_iterator<T> &other) const
+    {
+        return static_cast<difference_type>(other.m_index - m_index);
+    }
+
+private:
+    T m_value;
+    size_t m_index;
+};
+
+/// Returns a new constant_iterator with \p value at \p index.
+///
+/// \param value the constant value
+/// \param index the iterators index
+///
+/// \return a \c constant_iterator with \p value
+template<class T>
+inline constant_iterator<T>
+make_constant_iterator(const T &value, size_t index = 0)
+{
+    return constant_iterator<T>(value, index);
+}
+
+/// \internal_ (is_device_iterator specialization for constant_iterator)
+template<class T>
+struct is_device_iterator<constant_iterator<T> > : boost::true_type {};
+
+} // end compute namespace
+} // end boost namespace
+
+#endif // BOOST_COMPUTE_ITERATOR_CONSTANT_ITERATOR_HPP