1 files changed, 82 insertions, 0 deletions
diff --git a/boost/compute/detail/print_range.hpp b/boost/compute/detail/print_range.hpp
new file mode 100644
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+++ b/boost/compute/detail/print_range.hpp
@@ -0,0 +1,82 @@
+//---------------------------------------------------------------------------//
+// 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_DETAIL_PRINT_RANGE_HPP
+#define BOOST_COMPUTE_DETAIL_PRINT_RANGE_HPP
+
+#include <vector>
+#include <iostream>
+#include <iterator>
+
+#include <boost/compute/algorithm/copy.hpp>
+#include <boost/compute/container/vector.hpp>
+#include <boost/compute/detail/is_buffer_iterator.hpp>
+#include <boost/compute/detail/iterator_range_size.hpp>
+
+namespace boost {
+namespace compute {
+namespace detail {
+
+template<class InputIterator>
+inline void print_range(InputIterator first,
+                        InputIterator last,
+                        command_queue &queue,
+                        typename boost::enable_if<
+                            is_buffer_iterator<InputIterator>
+                        >::type* = 0)
+{
+    typedef typename
+        std::iterator_traits<InputIterator>::value_type
+        value_type;
+
+    const size_t size = iterator_range_size(first, last);
+
+    // copy values to temporary vector on the host
+    std::vector<value_type> tmp(size);
+    ::boost::compute::copy(first, last, tmp.begin(), queue);
+
+    // print values
+    std::cout << "[ ";
+    for(size_t i = 0; i < size; i++){
+        std::cout << tmp[i];
+        if(i != size - 1){
+            std::cout << ", ";
+        }
+    }
+    std::cout << " ]" << std::endl;
+}
+
+template<class InputIterator>
+inline void print_range(InputIterator first,
+                        InputIterator last,
+                        command_queue &queue,
+                        typename boost::enable_if_c<
+                            !is_buffer_iterator<InputIterator>::value
+                        >::type* = 0)
+{
+    typedef typename
+        std::iterator_traits<InputIterator>::value_type
+        value_type;
+
+    const context &context = queue.get_context();
+    const size_t size = iterator_range_size(first, last);
+
+    // copy values to temporary vector on the device
+    ::boost::compute::vector<value_type> tmp(size, context);
+    ::boost::compute::copy(first, last, tmp.begin(), queue);
+
+    print_range(tmp.begin(), tmp.end(), queue);
+}
+
+} // end detail namespace
+} // end compute namespace
+} // end boost namespace
+
+#endif // BOOST_COMPUTE_DETAIL_PRINT_RANGE_HPP