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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 <math.h>
#include "ceiling.h"
#include <drizzled/type/decimal.h>
namespace drizzled
{
int64_t Item_func_ceiling::int_op()
{
int64_t result;
switch (args[0]->result_type()) {
case INT_RESULT:
result= args[0]->val_int();
null_value= args[0]->null_value;
break;
case DECIMAL_RESULT:
{
type::Decimal dec_buf, *dec;
if ((dec= Item_func_ceiling::decimal_op(&dec_buf)))
dec->val_int32(E_DEC_FATAL_ERROR, unsigned_flag, &result);
else
result= 0;
break;
}
default:
result= (int64_t)Item_func_ceiling::real_op();
};
return result;
}
double Item_func_ceiling::real_op()
{
/*
the volatile's for BUG #3051 to calm optimizer down (because of gcc's
bug)
*/
volatile double value= args[0]->val_real();
null_value= args[0]->null_value;
return ceil(value);
}
type::Decimal *Item_func_ceiling::decimal_op(type::Decimal *decimal_value)
{
type::Decimal val, *value= args[0]->val_decimal(&val);
if (!(null_value= (args[0]->null_value ||
class_decimal_ceiling(E_DEC_FATAL_ERROR, value,
decimal_value) > 1)))
return decimal_value;
return 0;
}
} /* namespace drizzled */
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