1
/* - mode: c++ c-basic-offset: 2; indent-tabs-mode: nil; -*-
2
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
4
* Copyright (C) 2008 MySQL
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; either version 2 of the License, or
9
* (at your option) any later version.
11
* This program is distributed in the hope that it will be useful,
12
* but WITHOUT ANY WARRANTY; without even the implied warranty of
13
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
* GNU General Public License for more details.
16
* You should have received a copy of the GNU General Public License
17
* along with this program; if not, write to the Free Software
18
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23
#include <drizzled/field/int32.h>
24
#include <drizzled/error.h>
25
#include <drizzled/table.h>
26
#include <drizzled/session.h>
40
/****************************************************************************
42
****************************************************************************/
44
int Int32::store(const char *from,uint32_t len, const CHARSET_INFO * const cs)
50
ASSERT_COLUMN_MARKED_FOR_WRITE;
52
error= get_int(cs, from, len, &rnd, UINT32_MAX, INT32_MIN, INT32_MAX);
53
store_tmp= (long) rnd;
54
#ifdef WORDS_BIGENDIAN
55
if (getTable()->getShare()->db_low_byte_first)
57
int4store(ptr, store_tmp);
61
longstore(ptr, store_tmp);
66
int Int32::store(double nr)
72
ASSERT_COLUMN_MARKED_FOR_WRITE;
74
if (nr < (double) INT32_MIN)
76
res=(int32_t) INT32_MIN;
79
else if (nr > (double) INT32_MAX)
81
res=(int32_t) INT32_MAX;
85
res=(int32_t) (int64_t) nr;
88
set_warning(DRIZZLE_ERROR::WARN_LEVEL_WARN, ER_WARN_DATA_OUT_OF_RANGE, 1);
90
#ifdef WORDS_BIGENDIAN
91
if (getTable()->getShare()->db_low_byte_first)
102
int Int32::store(int64_t nr, bool unsigned_val)
107
ASSERT_COLUMN_MARKED_FOR_WRITE;
109
if (nr < 0 && unsigned_val)
110
nr= ((int64_t) INT32_MAX) + 1; // Generate overflow
111
if (nr < (int64_t) INT32_MIN)
113
res=(int32_t) INT32_MIN;
116
else if (nr > (int64_t) INT32_MAX)
118
res=(int32_t) INT32_MAX;
125
set_warning(DRIZZLE_ERROR::WARN_LEVEL_WARN, ER_WARN_DATA_OUT_OF_RANGE, 1);
127
#ifdef WORDS_BIGENDIAN
128
if (getTable()->getShare()->db_low_byte_first)
139
double Int32::val_real(void)
143
ASSERT_COLUMN_MARKED_FOR_READ;
145
#ifdef WORDS_BIGENDIAN
146
if (getTable()->getShare()->db_low_byte_first)
154
int64_t Int32::val_int(void)
158
ASSERT_COLUMN_MARKED_FOR_READ;
160
/* See the comment in Int32::store(int64_t) */
161
#ifdef WORDS_BIGENDIAN
162
if (getTable()->getShare()->db_low_byte_first)
170
String *Int32::val_str(String *val_buffer,
173
const CHARSET_INFO * const cs= &my_charset_bin;
175
uint32_t mlength= max(field_length+1,12*cs->mbmaxlen);
176
val_buffer->alloc(mlength);
177
char *to=(char*) val_buffer->ptr();
180
ASSERT_COLUMN_MARKED_FOR_READ;
182
#ifdef WORDS_BIGENDIAN
183
if (getTable()->getShare()->db_low_byte_first)
189
length=cs->cset->long10_to_str(cs,to,mlength,-10,(long) j);
190
val_buffer->length(length);
195
int Int32::cmp(const unsigned char *a_ptr, const unsigned char *b_ptr)
198
#ifdef WORDS_BIGENDIAN
199
if (getTable()->getShare()->db_low_byte_first)
211
return (a < b) ? -1 : (a > b) ? 1 : 0;
214
void Int32::sort_string(unsigned char *to,uint32_t )
216
#ifdef WORDS_BIGENDIAN
217
if (!getTable()->getShare()->db_low_byte_first)
219
to[0] = (char) (ptr[0] ^ 128); /* Revers signbit */
227
to[0] = (char) (ptr[3] ^ 128); /* Revers signbit */
235
void Int32::sql_type(String &res) const
237
const CHARSET_INFO * const cs=res.charset();
238
res.length(cs->cset->snprintf(cs,(char*) res.ptr(),res.alloced_length(), "int"));
241
unsigned char *Int32::pack(unsigned char* to, const unsigned char *from,
243
#ifdef WORDS_BIGENDIAN
251
#ifdef WORDS_BIGENDIAN
252
if (getTable()->getShare()->db_low_byte_first)
253
val = sint4korr(from);
258
#ifdef WORDS_BIGENDIAN
264
return to + sizeof(val);
268
const unsigned char *Int32::unpack(unsigned char* to, const unsigned char *from, uint32_t,
269
#ifdef WORDS_BIGENDIAN
277
#ifdef WORDS_BIGENDIAN
279
val = sint4korr(from);
284
#ifdef WORDS_BIGENDIAN
285
if (getTable()->getShare()->db_low_byte_first)
290
return from + sizeof(val);
293
} /* namespace field */
294
} /* namespace drizzled */