Drizzled Public API Documentation

hybrid_type_traits_integer.cc
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19 
20 
21 #include <config.h>
22 
23 #include <drizzled/definitions.h>
24 #include <drizzled/field.h>
25 #include <drizzled/hybrid_type.h>
26 #include <drizzled/hybrid_type_traits_integer.h>
27 #include <drizzled/item.h>
28 
29 namespace drizzled
30 {
31 
32 /* Hybrid_type_traits_integer */
33 static const Hybrid_type_traits_integer integer_traits_instance;
34 
35 
36 Item_result Hybrid_type_traits_integer::type() const
37 {
38  return INT_RESULT;
39 }
40 
41 
42 void
43 Hybrid_type_traits_integer::fix_length_and_dec(Item *item, Item *) const
44 {
45  item->decimals= 0;
46  item->max_length= MY_INT64_NUM_DECIMAL_DIGITS;
47  item->unsigned_flag= 0;
48 }
49 
50 
51 /* Hybrid_type operations. */
52 void Hybrid_type_traits_integer::set_zero(Hybrid_type *val) const
53 {
54  val->integer= 0;
55 }
56 
57 
58 void Hybrid_type_traits_integer::add(Hybrid_type *val, Field *f) const
59 {
60  val->integer+= f->val_int();
61 }
62 
63 
64 void Hybrid_type_traits_integer::div(Hybrid_type *val, uint64_t u) const
65 {
66  val->integer/= (int64_t) u;
67 }
68 
69 
70 int64_t Hybrid_type_traits_integer::val_int(Hybrid_type *val, bool) const
71 {
72  return val->integer;
73 }
74 
75 
76 double Hybrid_type_traits_integer::val_real(Hybrid_type *val) const
77 {
78  return (double) val->integer;
79 }
80 
81 
82 type::Decimal *Hybrid_type_traits_integer::val_decimal(Hybrid_type *val,
83  type::Decimal *) const
84 {
85  int2_class_decimal(E_DEC_FATAL_ERROR, val->integer, 0, &val->dec_buf[2]);
86  return &val->dec_buf[2];
87 }
88 
89 
90 String *Hybrid_type_traits_integer::val_str(Hybrid_type *val, String *buf,
91  uint8_t) const
92 {
93  buf->set(val->integer, &my_charset_bin);
94  return buf;
95 }
96 
97 
98 const Hybrid_type_traits_integer *Hybrid_type_traits_integer::instance()
99 {
100  return &integer_traits_instance;
101 }
102 
103 
104 Hybrid_type_traits_integer::Hybrid_type_traits_integer()
105 {}
106 
107 
108 } /* namespace drizzled */