libStatGen Software  1
LongLongCounter.cpp
1 /*
2  * Copyright (C) 2010 Regents of the University of Michigan
3  *
4  * This program is free software: you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation, either version 3 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program. If not, see <http://www.gnu.org/licenses/>.
16  */
17 
18 #include "LongLongCounter.h"
19 
20 LongCounter::LongCounter() : LongHash<int>()
21 {
22  SetAllowDuplicateKeys(false);
23 }
24 
25 void LongCounter::IncrementCount(long long key)
26 {
27  unsigned int slot = Find(key);
28 
29  if (slot == LH_NOTFOUND)
30  Add(key, 1);
31  else if (Object(slot) == -1)
32  Delete(slot);
33  else
34  Object(slot)++;
35 }
36 
37 void LongCounter::DecrementCount(long long key)
38 {
39  unsigned int slot = Find(key);
40 
41  if (slot == LH_NOTFOUND)
42  Add(key, -1);
43  else if (Object(slot) == 1)
44  Delete(slot);
45  else
46  Object(slot)--;
47 }
48 
49 int LongCounter::GetCount(long long key)
50 {
51  unsigned int slot = Find(key);
52 
53  if (slot == LH_NOTFOUND)
54  return 0;
55  else
56  return Object(slot)--;
57 }
58 
59 
LongHash
Definition: LongHash.h:32