~drizzle-trunk/drizzle/development

499.1.7 by Monty Taylor
Added key_map and table_map_iterator.
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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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 *
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 *  Copyright (C) 2008 Sun Microsystems, Inc.
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 *
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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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 *
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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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 *
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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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 */
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#ifndef DRIZZLED_KEY_MAP_H
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#define DRIZZLED_KEY_MAP_H
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#include <bitset>
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/* Used for finding keys */
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#if MAX_INDEXES <= 64
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typedef std::bitset<64>  key_map;
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#else
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typedef std::bitset<((MAX_INDEXES+7)/8*8)> key_map;
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#endif
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bool is_subset(const key_map& map, const key_map& map2);
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bool is_prefix(const key_map& map, const uint32_t n);
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bool is_overlapping(const key_map& map, const key_map& map2);
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#endif