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key_map.h
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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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#pragma once
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#include <
drizzled/definitions.h
>
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#include <bitset>
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#include <
drizzled/visibility.h
>
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namespace
drizzled
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{
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/* Used for finding keys */
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#if MAX_INDEXES <= 64
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typedef
std::bitset<72> 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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/* useful constants */
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extern
const
key_map key_map_empty;
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extern
DRIZZLED_API
key_map key_map_full;
/* Should be threaded as const */
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bool
is_keymap_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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void
set_prefix(key_map& map,
const
uint32_t n);
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void
key_map_subtract(key_map& map1, key_map& map2);
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}
/* namespace drizzled */
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drizzled
key_map.h
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