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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/item/uint.h>
#include <drizzled/item/num.h>
#include <drizzled/item/string.h>
#include <drizzled/item/decimal.h>
namespace drizzled {
/**
@details
Created mostly for prepare_table(). Important
when a string ENUM/SET column is described with a numeric default value:
CREATE TABLE t1(a SET('a') DEFAULT 1);
We cannot use generic Item::safe_charset_converter(), because
the latter returns a non-fixed Item, so val_str() crashes afterwards.
Override Item_num method, to return a fixed item.
*/
Item *Item_num::safe_charset_converter(const charset_info_st*)
{
char buf[64];
String tmp(buf, sizeof(buf), &my_charset_bin);
String* s= val_str(&tmp);
Item_string* conv= new Item_string(s->ptr(), s->length(), s->charset());
conv->str_value.copy();
conv->str_value.mark_as_const();
return conv;
}
Item_num *Item_uint::neg()
{
Item_decimal *item= new Item_decimal(value, 1);
return item->neg();
}
} /* namespace drizzled */
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