Drizzled Public API Documentation

double.h
1 /* - mode: c++ c-basic-offset: 2; indent-tabs-mode: nil; -*-
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3  *
4  * Copyright (C) 2008 MySQL
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14  * GNU General Public License for more details.
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20 
21 #pragma once
22 
23 #include <drizzled/field/real.h>
24 
25 namespace drizzled
26 {
27 
28 class Field_double :public Field_real {
29 public:
30 
31  using Field::store;
32  using Field::val_int;
33  using Field::val_str;
34  using Field::cmp;
35 
36  Field_double(unsigned char *ptr_arg, uint32_t len_arg,
37  unsigned char *null_ptr_arg,
38  unsigned char null_bit_arg,
39  enum utype unireg_check_arg, const char *field_name_arg,
40  uint8_t dec_arg,bool zero_arg,bool unsigned_arg)
41  :Field_real(ptr_arg, len_arg, null_ptr_arg, null_bit_arg,
42  unireg_check_arg, field_name_arg,
43  dec_arg, zero_arg, unsigned_arg)
44  {}
45  Field_double(uint32_t len_arg, bool maybe_null_arg, const char *field_name_arg,
46  uint8_t dec_arg)
47  :Field_real((unsigned char*) 0, len_arg, maybe_null_arg ? (unsigned char*) "" : 0, (uint32_t) 0,
48  NONE, field_name_arg, dec_arg, 0, 0)
49  {}
50  Field_double(uint32_t len_arg, bool maybe_null_arg, const char *field_name_arg,
51  uint8_t dec_arg, bool not_fixed_arg)
52  :Field_real((unsigned char*) 0, len_arg, maybe_null_arg ? (unsigned char*) "" : 0, (uint32_t) 0,
53  NONE, field_name_arg, dec_arg, 0, 0)
54  {not_fixed= not_fixed_arg; }
55  enum_field_types type() const { return DRIZZLE_TYPE_DOUBLE;}
56  enum ha_base_keytype key_type() const { return HA_KEYTYPE_DOUBLE; }
57  int store(const char *to,uint32_t length, const charset_info_st * const charset);
58  int store(double nr);
59  int store(int64_t nr, bool unsigned_val);
60  int reset(void) { memset(ptr, 0, sizeof(double)); return 0; }
61  double val_real(void) const;
62  int64_t val_int(void) const;
63  String *val_str(String*,String *) const;
64  int cmp(const unsigned char *,const unsigned char *);
65  void sort_string(unsigned char *buff,uint32_t length);
66  uint32_t pack_length() const { return sizeof(double); }
67 };
68 
69 } /* namespace drizzled */
70 
71