Drizzled Public API Documentation

num.cc

00001 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
00002  *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
00003  *
00004  *  Copyright (C) 2008 Sun Microsystems, Inc.
00005  *
00006  *  This program is free software; you can redistribute it and/or modify
00007  *  it under the terms of the GNU General Public License as published by
00008  *  the Free Software Foundation; version 2 of the License.
00009  *
00010  *  This program is distributed in the hope that it will be useful,
00011  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  *  GNU General Public License for more details.
00014  *
00015  *  You should have received a copy of the GNU General Public License
00016  *  along with this program; if not, write to the Free Software
00017  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00018  */
00019 
00020 #include <config.h>
00021 
00022 #include <drizzled/item/uint.h>
00023 #include <drizzled/item/num.h>
00024 #include <drizzled/item/string.h>
00025 #include <drizzled/item/decimal.h>
00026 
00027 namespace drizzled
00028 {
00029 
00041 Item *Item_num::safe_charset_converter(const CHARSET_INFO * const)
00042 {
00043   Item_string *conv;
00044   char buf[64];
00045   String *s, tmp(buf, sizeof(buf), &my_charset_bin);
00046   s= val_str(&tmp);
00047   if ((conv= new Item_string(s->ptr(), s->length(), s->charset())))
00048   {
00049     conv->str_value.copy();
00050     conv->str_value.mark_as_const();
00051   }
00052   return conv;
00053 }
00054 
00055 Item_num *Item_uint::neg()
00056 {
00057   Item_decimal *item= new Item_decimal(value, 1);
00058   return item->neg();
00059 }
00060 
00061 } /* namespace drizzled */