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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, Inc.
*
* 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 <drizzled/function/math/int_divide.h>
namespace drizzled
{
/* Integer division */
int64_t Item_func_int_div::val_int()
{
assert(fixed == 1);
int64_t value=args[0]->val_int();
int64_t val2=args[1]->val_int();
if ((null_value= (args[0]->null_value || args[1]->null_value)))
return 0;
if (val2 == 0)
{
signal_divide_by_null();
return 0;
}
return (unsigned_flag ?
(int64_t)((uint64_t) value / (uint64_t) val2) :
value / val2);
}
void Item_func_int_div::fix_length_and_dec()
{
Item_result argtype= args[0]->result_type();
/* use precision ony for the data type it is applicable for and valid */
max_length=args[0]->max_length -
(argtype == DECIMAL_RESULT || argtype == INT_RESULT ?
args[0]->decimals : 0);
maybe_null=1;
unsigned_flag=args[0]->unsigned_flag | args[1]->unsigned_flag;
}
} /* namespace drizzled */
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