Drizzled Public API Documentation

num_op.cc
1 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
2  * vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
3  *
4  * Copyright (C) 2008 Sun Microsystems, Inc.
5  *
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; version 2 of the License.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18  */
19 
20 #include <config.h>
21 
22 #include <cassert>
23 
24 #include <drizzled/function/num_op.h>
25 
26 namespace drizzled
27 {
28 
35 {
36  assert(arg_count == 2);
37  Item_result r0= args[0]->result_type();
38  Item_result r1= args[1]->result_type();
39 
40  if (r0 == REAL_RESULT || r1 == REAL_RESULT ||
41  r0 == STRING_RESULT || r1 ==STRING_RESULT)
42  {
44  max_length= float_length(decimals);
45  hybrid_type= REAL_RESULT;
46  }
47  else if (r0 == DECIMAL_RESULT || r1 == DECIMAL_RESULT)
48  {
49  hybrid_type= DECIMAL_RESULT;
50  result_precision();
51  }
52  else
53  {
54  assert(r0 == INT_RESULT && r1 == INT_RESULT);
55  decimals= 0;
56  hybrid_type=INT_RESULT;
57  result_precision();
58  }
59  return;
60 }
61 
62 } /* namespace drizzled */
void find_num_type()
Definition: num_op.cc:34
void count_real_length()
Definition: func.cc:667