~drizzle-trunk/drizzle/development

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
/* - mode: c++ c-basic-offset: 2; indent-tabs-mode: nil; -*-
 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
 *
 *  Copyright (C) 2008 MySQL
 *
 *  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; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  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
 */

#pragma once

#include <drizzled/field/num.h>

namespace drizzled
{

namespace field
{

class Int32 :public Field_num {
public:

  using Field::val_int;
  using Field::val_str;
  using Field::cmp;
  using Field::pack;
  using Field::store;
  using Field::unpack;

  Int32(unsigned char *ptr_arg, uint32_t len_arg, unsigned char *null_ptr_arg,
        unsigned char null_bit_arg,
        enum utype unireg_check_arg,
        const char *field_name_arg) :
    Field_num(ptr_arg, len_arg, null_ptr_arg, null_bit_arg,
              unireg_check_arg, field_name_arg,
              0, false, false)
  {}

  Int32(uint32_t len_arg,bool maybe_null_arg, const char *field_name_arg,
        bool unsigned_arg) :
    Field_num((unsigned char*) 0, len_arg, maybe_null_arg ? (unsigned char*) "": 0,0,
              NONE, field_name_arg,0,0,unsigned_arg)
    {}

  enum Item_result result_type () const { return INT_RESULT; }
  enum_field_types type() const { return DRIZZLE_TYPE_LONG;}
  enum ha_base_keytype key_type() const
  { return unsigned_flag ? HA_KEYTYPE_ULONG_INT : HA_KEYTYPE_LONG_INT; }
  int store(const char *to,uint32_t length, const charset_info_st * const charset);
  int store(double nr);
  int store(int64_t nr, bool unsigned_val);
  int reset(void) { ptr[0]=ptr[1]=ptr[2]=ptr[3]=0; return 0; }
  double val_real(void) const;
  int64_t val_int(void) const;
  String *val_str(String*,String *) const;
  int cmp(const unsigned char *,const unsigned char *);
  void sort_string(unsigned char *buff,uint32_t length);
  uint32_t pack_length() const { return 4; }
  uint32_t max_display_length() { return MY_INT32_NUM_DECIMAL_DIGITS; }
  virtual unsigned char *pack(unsigned char* to, const unsigned char *from,
                              uint32_t max_length,
                              bool low_byte_first);

  virtual const unsigned char *unpack(unsigned char* to, const unsigned char *from,
                                      uint32_t param_data,
                                      bool low_byte_first);
};

} /* namespace field */
} /* namespace drizzled */