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/* - mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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* Copyright (C) 2008 Sun Microsystems, Inc.
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#include <drizzled/key_map.h>
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bool is_subset(const key_map& map, const key_map& map2)
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for (count= 0; count < map.size(); count++)
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if (map[count] & ~map2[count])
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bool is_prefix(const key_map& map, const uint32_t prefix_size)
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for (; pos < prefix_size; pos++)
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if (map[pos] == false)
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uint32_t prefix_bits= prefix_size & 0x7;
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if (prefix_bits && != (1 << prefix_bits)-1)
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for (; pos < map.size(); pos++)
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bool is_overlapping(const key_map& map, const key_map& map2)
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for (count= 0; count < map.size(); count++)
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if (map[count] & map2[count])