|
492.3.14
by Lee
code clean move Item_func_ascii, Item_func_bit_count, Item_func_find_in_set, Item_func_ord to functions directory |
1 |
/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
|
2 |
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
|
|
3 |
*
|
|
4 |
* Copyright (C) 2008 Sun Microsystems
|
|
5 |
*
|
|
6 |
* This program is free software; you can redistribute it and/or modify
|
|
7 |
* it under the terms of the GNU General Public License as published by
|
|
8 |
* the Free Software Foundation; version 2 of the License.
|
|
9 |
*
|
|
10 |
* This program is distributed in the hope that it will be useful,
|
|
11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
13 |
* GNU General Public License for more details.
|
|
14 |
*
|
|
15 |
* You should have received a copy of the GNU General Public License
|
|
16 |
* along with this program; if not, write to the Free Software
|
|
17 |
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
18 |
*/
|
|
19 |
||
20 |
#include <drizzled/server_includes.h> |
|
21 |
#include CSTDINT_H
|
|
22 |
#include <drizzled/functions/ord.h> |
|
23 |
||
24 |
int64_t Item_func_ord::val_int() |
|
25 |
{
|
|
26 |
assert(fixed == 1); |
|
27 |
String *res=args[0]->val_str(&value); |
|
28 |
if (!res) |
|
29 |
{
|
|
30 |
null_value=1; |
|
31 |
return 0; |
|
32 |
}
|
|
33 |
null_value=0; |
|
34 |
if (!res->length()) return 0; |
|
35 |
#ifdef USE_MB
|
|
36 |
if (use_mb(res->charset())) |
|
37 |
{
|
|
38 |
register const char *str=res->ptr(); |
|
39 |
register uint32_t n=0, l=my_ismbchar(res->charset(),str,str+res->length()); |
|
40 |
if (!l) |
|
41 |
return (int64_t)((unsigned char) *str); |
|
42 |
while (l--) |
|
43 |
n=(n<<8)|(uint32_t)((unsigned char) *str++); |
|
44 |
return (int64_t) n; |
|
45 |
}
|
|
46 |
#endif
|
|
47 |
return (int64_t) ((unsigned char) (*res)[0]); |
|
48 |
}
|
|
49 |