SumAgg.inl
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1 namespace iv
2 {
3 
4 template< class Int >
5 SumAgg< Int >::SumAgg() :
6  current( 0 ),
7  count( 0 )
8 {
9 }
10 
11 template< class Int >
12 SumAgg< Int >::SumAgg( Int current, int count ) :
13  current( current ),
14  count( count )
15 {
16 }
17 
18 template< class Int >
19 SumAgg< Int > SumAgg< Int >::Insert( Int value ) const
20 {
21  Int current = this->current + value;
22  int count = this->count + 1;
23  if( count == 0 )
24  current = 0;
25  return SumAgg< Int >( current, count );
26 }
27 
28 template< class Int >
29 SumAgg< Int > SumAgg< Int >::Remove( Int value ) const
30 {
31  Int current = this->current - value;
32  int count = this->count - 1;
33  if( count == 0 )
34  current = 0;
35  return SumAgg< Int >( current, count );
36 }
37 
38 template< class Int >
39 Int SumAgg< Int >::Aggregated() const
40 {
41  return this->current;
42 }
43 
44 template< class Int >
45 int SumAgg< Int >::Size() const
46 {
47  return this->count;
48 }
49 
50 }