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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 <drizzled/server_includes.h>
#include CSTDINT_H
#include <drizzled/item/decimal.h>
Item_decimal::Item_decimal(const char *str_arg, uint32_t length,
const CHARSET_INFO * const charset)
{
str2my_decimal(E_DEC_FATAL_ERROR, str_arg, length, charset, &decimal_value);
name= (char*) str_arg;
decimals= (uint8_t) decimal_value.frac;
fixed= 1;
max_length= my_decimal_precision_to_length(decimal_value.intg + decimals,
decimals, unsigned_flag);
}
Item_decimal::Item_decimal(int64_t val, bool unsig)
{
int2my_decimal(E_DEC_FATAL_ERROR, val, unsig, &decimal_value);
decimals= (uint8_t) decimal_value.frac;
fixed= 1;
max_length= my_decimal_precision_to_length(decimal_value.intg + decimals,
decimals, unsigned_flag);
}
Item_decimal::Item_decimal(double val, int, int)
{
double2my_decimal(E_DEC_FATAL_ERROR, val, &decimal_value);
decimals= (uint8_t) decimal_value.frac;
fixed= 1;
max_length= my_decimal_precision_to_length(decimal_value.intg + decimals,
decimals, unsigned_flag);
}
Item_decimal::Item_decimal(const char *str, const my_decimal *val_arg,
uint32_t decimal_par, uint32_t length)
{
my_decimal2decimal(val_arg, &decimal_value);
name= (char*) str;
decimals= (uint8_t) decimal_par;
max_length= length;
fixed= 1;
}
Item_decimal::Item_decimal(my_decimal *value_par)
{
my_decimal2decimal(value_par, &decimal_value);
decimals= (uint8_t) decimal_value.frac;
fixed= 1;
max_length= my_decimal_precision_to_length(decimal_value.intg + decimals,
decimals, unsigned_flag);
}
Item_decimal::Item_decimal(const unsigned char *bin, int precision, int scale)
{
binary2my_decimal(E_DEC_FATAL_ERROR, bin,
&decimal_value, precision, scale);
decimals= (uint8_t) decimal_value.frac;
fixed= 1;
max_length= my_decimal_precision_to_length(precision, decimals,
unsigned_flag);
}
int64_t Item_decimal::val_int()
{
int64_t result;
my_decimal2int(E_DEC_FATAL_ERROR, &decimal_value, unsigned_flag, &result);
return result;
}
double Item_decimal::val_real()
{
double result;
my_decimal2double(E_DEC_FATAL_ERROR, &decimal_value, &result);
return result;
}
String *Item_decimal::val_str(String *result)
{
result->set_charset(&my_charset_bin);
my_decimal2string(E_DEC_FATAL_ERROR, &decimal_value, 0, 0, 0, result);
return result;
}
void Item_decimal::print(String *str, enum_query_type)
{
my_decimal2string(E_DEC_FATAL_ERROR, &decimal_value, 0, 0, 0, &str_value);
str->append(str_value);
}
bool Item_decimal::eq(const Item *item, bool) const
{
if (type() == item->type() && item->basic_const_item())
{
/*
We need to cast off const to call val_decimal(). This should
be OK for a basic constant. Additionally, we can pass 0 as
a true decimal constant will return its internal decimal
storage and ignore the argument.
*/
Item *arg= (Item*) item;
my_decimal *value= arg->val_decimal(0);
return !my_decimal_cmp(&decimal_value, value);
}
return 0;
}
void Item_decimal::set_decimal_value(my_decimal *value_par)
{
my_decimal2decimal(value_par, &decimal_value);
decimals= (uint8_t) decimal_value.frac;
unsigned_flag= !decimal_value.sign();
max_length= my_decimal_precision_to_length(decimal_value.intg + decimals,
decimals, unsigned_flag);
}
int Item_decimal::save_in_field(Field *field, bool)
{
field->set_notnull();
return field->store_decimal(&decimal_value);
}
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