~drizzle-trunk/drizzle/development

492.3.13 by Lee
code clean move Item_func_floor, Item_func_length, Item_func_min_max, Item_func_rand, Item_func_round to functions directory
1
/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
2
 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
3
 *
1999.6.1 by kalebral at gmail
update Copyright strings to a more common format to help with creating the master debian copyright file
4
 *  Copyright (C) 2008 Sun Microsystems, Inc.
492.3.13 by Lee
code clean move Item_func_floor, Item_func_length, Item_func_min_max, Item_func_rand, Item_func_round to functions directory
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
2173.2.1 by Monty Taylor
Fixes incorrect usage of include
20
#include <config.h>
1241.9.1 by Monty Taylor
Removed global.h. Fixed all the headers.
21
#include <math.h>
1759.3.19 by Stewart Smith
move FLOOR() function into math_functions plugin
22
#include "floor.h"
572.1.4 by Monty Taylor
Removed a bunch of unusued tests and defines from autoconf.
23
2154.2.4 by Brian Aker
This fixes 716459
24
#include <drizzled/type/decimal.h>
25
1280.1.10 by Monty Taylor
Put everything in drizzled into drizzled namespace.
26
namespace drizzled
27
{
492.3.13 by Lee
code clean move Item_func_floor, Item_func_length, Item_func_min_max, Item_func_rand, Item_func_round to functions directory
28
29
int64_t Item_func_floor::int_op()
30
{
31
  int64_t result;
32
  switch (args[0]->result_type()) {
33
  case INT_RESULT:
34
    result= args[0]->val_int();
35
    null_value= args[0]->null_value;
36
    break;
37
  case DECIMAL_RESULT:
38
  {
2030.1.4 by Brian Aker
Change my_decimal to Decimal
39
    type::Decimal dec_buf, *dec;
492.3.13 by Lee
code clean move Item_func_floor, Item_func_length, Item_func_min_max, Item_func_rand, Item_func_round to functions directory
40
    if ((dec= Item_func_floor::decimal_op(&dec_buf)))
2034.2.1 by Brian Aker
Move class_decimal2int to a method on Decimal.
41
      dec->val_int32(E_DEC_FATAL_ERROR, unsigned_flag, &result);
492.3.13 by Lee
code clean move Item_func_floor, Item_func_length, Item_func_min_max, Item_func_rand, Item_func_round to functions directory
42
    else
43
      result= 0;
44
    break;
45
  }
46
  default:
47
    result= (int64_t)Item_func_floor::real_op();
48
  };
49
  return result;
50
}
51
52
double Item_func_floor::real_op()
53
{
54
  /*
55
    the volatile's for BUG #3051 to calm optimizer down (because of gcc's
56
    bug)
57
  */
58
  volatile double value= args[0]->val_real();
59
  null_value= args[0]->null_value;
60
  return floor(value);
61
}
62
63
2030.1.4 by Brian Aker
Change my_decimal to Decimal
64
type::Decimal *Item_func_floor::decimal_op(type::Decimal *decimal_value)
492.3.13 by Lee
code clean move Item_func_floor, Item_func_length, Item_func_min_max, Item_func_rand, Item_func_round to functions directory
65
{
2030.1.4 by Brian Aker
Change my_decimal to Decimal
66
  type::Decimal val, *value= args[0]->val_decimal(&val);
492.3.13 by Lee
code clean move Item_func_floor, Item_func_length, Item_func_min_max, Item_func_rand, Item_func_round to functions directory
67
  if (!(null_value= (args[0]->null_value ||
2030.1.2 by Brian Aker
First pass in refactoring of the name of my_decimal.
68
                     class_decimal_floor(E_DEC_FATAL_ERROR, value,
492.3.13 by Lee
code clean move Item_func_floor, Item_func_length, Item_func_min_max, Item_func_rand, Item_func_round to functions directory
69
                                      decimal_value) > 1)))
70
    return decimal_value;
71
  return 0;
72
}
73
1280.1.10 by Monty Taylor
Put everything in drizzled into drizzled namespace.
74
} /* namespace drizzled */