Drizzled Public API Documentation

int_divide.cc
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19 
20 #include <config.h>
21 
22 #include <drizzled/function/math/int_divide.h>
23 
24 namespace drizzled
25 {
26 
27 /* Integer division */
29 {
30  assert(fixed == 1);
31  int64_t value=args[0]->val_int();
32  int64_t val2=args[1]->val_int();
33  if ((null_value= (args[0]->null_value || args[1]->null_value)))
34  return 0;
35  if (val2 == 0)
36  {
37  signal_divide_by_null();
38  return 0;
39  }
40  return (unsigned_flag ?
41  (int64_t)((uint64_t) value / (uint64_t) val2) :
42  value / val2);
43 }
44 
45 void Item_func_int_div::fix_length_and_dec()
46 {
47  Item_result argtype= args[0]->result_type();
48  /* use precision ony for the data type it is applicable for and valid */
49  max_length=args[0]->max_length -
50  (argtype == DECIMAL_RESULT || argtype == INT_RESULT ?
51  args[0]->decimals : 0);
52  maybe_null=1;
53  unsigned_flag=args[0]->unsigned_flag | args[1]->unsigned_flag;
54 }
55 
56 } /* namespace drizzled */
virtual int64_t val_int()=0
bool fixed
Definition: item.h:120
bool null_value
Definition: item.h:122
bool maybe_null
Definition: item.h:121