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diff --git a/storage/oqgraph/oqgraph_judy.cc b/storage/oqgraph/oqgraph_judy.cc
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+/* Copyright (C) 2007-2013 Arjen G Lentz & Antony T Curtis for Open Query
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+/* ======================================================================
+ Open Query Graph Computation Engine, based on a concept by Arjen Lentz
+ v3 implementation by Antony Curtis, Arjen Lentz, Andrew McDonnell
+ For more information, documentation, support, enhancement engineering,
+ see http://openquery.com/graph or contact graph@openquery.com
+ ======================================================================
+*/
+
+#include "oqgraph_judy.h"
+
+/*
+ Currently the only active code that can return error is:
+ judy_bitset::reset()/J1U()
+ judy_bitset::setbit()/J1S()
+
+ In most cases errors are either about wrong parameters passed to Judy
+ functions or internal structures corruption. These definitely deserve
+ abnormal process termination instead of exit() as it is done by original
+ JUDYERROR.
+
+ TODO: there's one exception that should be handled properly though: OOM.
+*/
+#include <stdio.h>
+#define JUDYERROR(CallerFile, CallerLine, JudyFunc, JudyErrno, JudyErrID) \
+ { \
+ (void) fprintf(stderr, "File '%s', line %d: %s(), " \
+ "JU_ERRNO_* == %d, ID == %d\n", \
+ CallerFile, CallerLine, \
+ JudyFunc, JudyErrno, JudyErrID); \
+ abort(); \
+ }
+#include <Judy.h>
+
+void open_query::judy_bitset::clear()
+{
+ int rc;
+ J1FA(rc, array);
+}
+
+bool open_query::judy_bitset::test(size_type n) const
+{
+ int rc;
+ J1T(rc, array, n);
+ return rc == 1;
+}
+
+open_query::judy_bitset& open_query::judy_bitset::setbit(size_type n)
+{
+ int rc;
+ J1S(rc, array, n);
+ return *this;
+}
+
+open_query::judy_bitset& open_query::judy_bitset::reset(size_type n)
+{
+ int rc;
+ J1U(rc, array, n);
+ return *this;
+}
+
+open_query::judy_bitset& open_query::judy_bitset::flip(size_type n)
+{
+ int rc;
+ J1U(rc, array, n);
+ if (!rc)
+ {
+ J1S(rc, array, n);
+ }
+ return *this;
+}
+
+open_query::judy_bitset::size_type open_query::judy_bitset::num_blocks() const
+{
+ Word_t rc;
+ J1MU(rc, array);
+ return rc;
+}
+
+open_query::judy_bitset::size_type open_query::judy_bitset::size() const
+{
+ int rc;
+ Word_t index = (Word_t) -1;
+ J1L(rc, array, index);
+ if (!rc)
+ return index;
+ else
+ return npos;
+}
+
+open_query::judy_bitset::size_type open_query::judy_bitset::count() const
+{
+ Word_t rc;
+ J1C(rc, array, 0, -1);
+ return rc;
+}
+
+open_query::judy_bitset& open_query::judy_bitset::set(const judy_bitset& src)
+{
+ if (!src.empty())
+ {
+ for (size_type pos= src.find_first(); pos != npos; pos= src.find_next(pos))
+ {
+ set(pos);
+ }
+ }
+ return *this;
+}
+
+
+open_query::judy_bitset::size_type open_query::judy_bitset::find_first() const
+{
+ int rc;
+ Word_t index = 0;
+ J1F(rc, array, index);
+ if (!rc)
+ return index;
+ else
+ return npos;
+}
+
+open_query::judy_bitset::size_type open_query::judy_bitset::find_next(size_type n) const
+{
+ int rc;
+ Word_t index = (Word_t) n;
+ J1N(rc, array, index);
+ if (!rc)
+ return index;
+ else
+ return npos;
+}