Drizzled Public API Documentation

plus.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 <drizzled/function/math/plus.h>
23 
24 namespace drizzled
25 {
26 
28 {
29  double value= args[0]->val_real() + args[1]->val_real();
30  if ((null_value=args[0]->null_value || args[1]->null_value))
31  return 0.0;
32  return fix_result(value);
33 }
34 
35 
37 {
38  int64_t value=args[0]->val_int()+args[1]->val_int();
39  if ((null_value=args[0]->null_value || args[1]->null_value))
40  return 0;
41  return value;
42 }
43 
44 
57 {
58  type::Decimal value1, *val1;
59  type::Decimal value2, *val2;
60  val1= args[0]->val_decimal(&value1);
61  if ((null_value= args[0]->null_value))
62  return 0;
63  val2= args[1]->val_decimal(&value2);
64  if (!(null_value= (args[1]->null_value ||
65  (class_decimal_add(E_DEC_FATAL_ERROR, decimal_value, val1,
66  val2) > 3))))
67  return decimal_value;
68  return 0;
69 }
70 
71 } /* namespace drizzled */