~drizzle-trunk/drizzle/development

492.3.2 by Lee
code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid
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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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 *
1999.6.1 by kalebral at gmail
update Copyright strings to a more common format to help with creating the master debian copyright file
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 *  Copyright (C) 2008 Sun Microsystems, Inc.
492.3.2 by Lee
code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid
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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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2173.2.1 by Monty Taylor
Fixes incorrect usage of include
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#include <config.h>
492.3.2 by Lee
code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid
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#include <cassert>
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670.1.20 by Monty Taylor
Renamed functions to function... everything else is singular.
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#include <drizzled/function/num_op.h>
492.3.2 by Lee
code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid
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1280.1.10 by Monty Taylor
Put everything in drizzled into drizzled namespace.
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namespace drizzled
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{
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492.3.2 by Lee
code clean up to moving functions into drizzled/functions directory - Item_num_op and Item_numhybrid
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/**
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  Check arguments here to determine result's type for a numeric
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  function of two arguments.
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*/
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void Item_num_op::find_num_type(void)
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{
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  assert(arg_count == 2);
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  Item_result r0= args[0]->result_type();
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  Item_result r1= args[1]->result_type();
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  if (r0 == REAL_RESULT || r1 == REAL_RESULT ||
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      r0 == STRING_RESULT || r1 ==STRING_RESULT)
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  {
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    count_real_length();
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    max_length= float_length(decimals);
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    hybrid_type= REAL_RESULT;
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  }
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  else if (r0 == DECIMAL_RESULT || r1 == DECIMAL_RESULT)
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  {
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    hybrid_type= DECIMAL_RESULT;
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    result_precision();
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  }
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  else
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  {
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    assert(r0 == INT_RESULT && r1 == INT_RESULT);
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    decimals= 0;
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    hybrid_type=INT_RESULT;
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    result_precision();
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  }
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  return;
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}
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1280.1.10 by Monty Taylor
Put everything in drizzled into drizzled namespace.
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} /* namespace drizzled */