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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 Sun Microsystems
*
* 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.
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include <cassert>
#include <drizzled/function/num_op.h>
namespace drizzled
{
/**
Check arguments here to determine result's type for a numeric
function of two arguments.
*/
void Item_num_op::find_num_type(void)
{
assert(arg_count == 2);
Item_result r0= args[0]->result_type();
Item_result r1= args[1]->result_type();
if (r0 == REAL_RESULT || r1 == REAL_RESULT ||
r0 == STRING_RESULT || r1 ==STRING_RESULT)
{
count_real_length();
max_length= float_length(decimals);
hybrid_type= REAL_RESULT;
}
else if (r0 == DECIMAL_RESULT || r1 == DECIMAL_RESULT)
{
hybrid_type= DECIMAL_RESULT;
result_precision();
}
else
{
assert(r0 == INT_RESULT && r1 == INT_RESULT);
decimals= 0;
hybrid_type=INT_RESULT;
result_precision();
}
return;
}
} /* namespace drizzled */
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