1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/* -*- 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/charset.h>
#include <drizzled/field.h>
#include <drizzled/item/decimal.h>
namespace drizzled {
Item_decimal::Item_decimal(const char *str_arg, uint32_t length,
const charset_info_st * const charset)
{
decimal_value.store(E_DEC_FATAL_ERROR, str_arg, length, charset);
name= (char*) str_arg;
decimals= (uint8_t) decimal_value.frac;
fixed= 1;
max_length= class_decimal_precision_to_length(decimal_value.intg + decimals,
decimals, unsigned_flag);
}
Item_decimal::Item_decimal(int64_t val, bool unsig)
{
int2_class_decimal(E_DEC_FATAL_ERROR, val, unsig, &decimal_value);
decimals= (uint8_t) decimal_value.frac;
fixed= 1;
max_length= class_decimal_precision_to_length(decimal_value.intg + decimals,
decimals, unsigned_flag);
}
Item_decimal::Item_decimal(double val, int, int)
{
double2_class_decimal(E_DEC_FATAL_ERROR, val, &decimal_value);
decimals= (uint8_t) decimal_value.frac;
fixed= 1;
max_length= class_decimal_precision_to_length(decimal_value.intg + decimals,
decimals, unsigned_flag);
}
Item_decimal::Item_decimal(const char *str, const type::Decimal *val_arg,
uint32_t decimal_par, uint32_t length)
{
class_decimal2decimal(val_arg, &decimal_value);
name= (char*) str;
decimals= (uint8_t) decimal_par;
max_length= length;
fixed= 1;
}
Item_decimal::Item_decimal(type::Decimal *value_par)
{
class_decimal2decimal(value_par, &decimal_value);
decimals= (uint8_t) decimal_value.frac;
fixed= 1;
max_length= class_decimal_precision_to_length(decimal_value.intg + decimals,
decimals, unsigned_flag);
}
Item_decimal::Item_decimal(const unsigned char *bin, int precision, int scale)
{
binary2_class_decimal(E_DEC_FATAL_ERROR, bin,
&decimal_value, precision, scale);
decimals= (uint8_t) decimal_value.frac;
fixed= 1;
max_length= class_decimal_precision_to_length(precision, decimals,
unsigned_flag);
}
int64_t Item_decimal::val_int()
{
int64_t result;
decimal_value.val_int32(E_DEC_FATAL_ERROR, unsigned_flag, &result);
return result;
}
double Item_decimal::val_real()
{
double result;
class_decimal2double(E_DEC_FATAL_ERROR, &decimal_value, &result);
return result;
}
String *Item_decimal::val_str(String *result)
{
result->set_charset(&my_charset_bin);
class_decimal2string(&decimal_value, 0, result);
return result;
}
void Item_decimal::print(String *str)
{
class_decimal2string(&decimal_value, 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;
type::Decimal *value= arg->val_decimal(0);
return !class_decimal_cmp(&decimal_value, value);
}
return 0;
}
void Item_decimal::set_decimal_value(type::Decimal *value_par)
{
class_decimal2decimal(value_par, &decimal_value);
decimals= (uint8_t) decimal_value.frac;
unsigned_flag= !decimal_value.sign();
max_length= class_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);
}
} /* namespace drizzled */
|