stabilize build system: depends, installer, boost/bdb fixes, cross targets groundwork

depends/x86_64-pc-linux-gnu/include/boost/compute/algorithm/search.hpp

@@ -0,0 +1,73 @@
+//---------------------------------------------------------------------------//
+// Copyright (c) 2014 Roshan <thisisroshansmail@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_ALGORITHM_SEARCH_HPP
+#define BOOST_COMPUTE_ALGORITHM_SEARCH_HPP
+
+#include <boost/compute/algorithm/detail/search_all.hpp>
+#include <boost/compute/algorithm/find.hpp>
+#include <boost/compute/container/vector.hpp>
+#include <boost/compute/detail/iterator_range_size.hpp>
+#include <boost/compute/detail/meta_kernel.hpp>
+#include <boost/compute/system.hpp>
+
+namespace boost {
+namespace compute {
+
+///
+/// \brief Substring matching algorithm
+///
+/// Searches for the first match of the pattern [p_first, p_last)
+/// in text [t_first, t_last).
+/// \return Iterator pointing to beginning of first occurrence
+///
+/// \param t_first Iterator pointing to start of text
+/// \param t_last Iterator pointing to end of text
+/// \param p_first Iterator pointing to start of pattern
+/// \param p_last Iterator pointing to end of pattern
+/// \param queue Queue on which to execute
+///
+template<class TextIterator, class PatternIterator>
+inline TextIterator search(TextIterator t_first,
+                           TextIterator t_last,
+                           PatternIterator p_first,
+                           PatternIterator p_last,
+                           command_queue &queue = system::default_queue())
+{
+    // there is no need to check if pattern starts at last n - 1 indices
+    vector<uint_> matching_indices(
+        detail::iterator_range_size(t_first, t_last)
+            - detail::iterator_range_size(p_first, p_last) + 1,
+        queue.get_context()
+    );
+
+    // search_kernel puts value 1 at every index in vector where pattern starts at
+    detail::search_kernel<PatternIterator,
+                          TextIterator,
+                          vector<uint_>::iterator> kernel;
+
+    kernel.set_range(p_first, p_last, t_first, t_last, matching_indices.begin());
+    kernel.exec(queue);
+
+    vector<uint_>::iterator index = ::boost::compute::find(
+        matching_indices.begin(), matching_indices.end(), uint_(1), queue
+    );
+
+    // pattern was not found
+    if(index == matching_indices.end())
+        return t_last;
+
+    return t_first + detail::iterator_range_size(matching_indices.begin(), index);
+}
+
+} //end compute namespace
+} //end boost namespace
+
+#endif // BOOST_COMPUTE_ALGORITHM_SEARCH_HPP