12 |
|
{ |
13 |
|
private: |
14 |
|
Type value; |
15 |
+ |
Node<Type>* next; |
16 |
+ |
Node<Type>* previous; |
17 |
|
public: |
18 |
|
Node() {} |
19 |
< |
Node(const Type& value) : value(value) {} |
19 |
> |
Node(const Type& value) : value(value), next(NULL), previous(NULL) {} |
20 |
|
virtual ~Node() {} |
21 |
< |
virtual void setValue(const Type& value) { this->value = value; } |
22 |
< |
virtual const Type& getValue(void) const { return value; } |
21 |
> |
void setValue(const Type& value) { this->value = value; } |
22 |
> |
const Type& getValue(void) const { return value; } |
23 |
> |
void addNext(const Type& value); |
24 |
> |
void addPrevious(const Type& value); |
25 |
> |
void removeNext(void); |
26 |
> |
void removePrevious(void); |
27 |
> |
void setNext(Node<Type>* next) { this->next = next; } |
28 |
> |
void setPrevious(Node<Type>* previous) { this->previous = previous; } |
29 |
> |
Node<Type>* getNext(void) const { return next; } |
30 |
> |
Node<Type>* getPrevious(void) const { return next; } |
31 |
|
}; |
32 |
|
|
33 |
+ |
template<typename Type> |
34 |
+ |
void Node<Type>::addNext(const Type& value) |
35 |
+ |
{ |
36 |
+ |
Node<Type>* behind = next; |
37 |
+ |
|
38 |
+ |
next = new Node<Type>(value); |
39 |
+ |
next->previous = this; |
40 |
+ |
next->next = behind; |
41 |
+ |
behind->previous = next; |
42 |
+ |
} |
43 |
+ |
|
44 |
+ |
template<typename Type> |
45 |
+ |
void Node<Type>::addPrevious(const Type& value) |
46 |
+ |
{ |
47 |
+ |
Node<Type>* ahead = previous; |
48 |
+ |
|
49 |
+ |
previous = new Node<Type>(value); |
50 |
+ |
previous->next = this; |
51 |
+ |
previous->previous = ahead; |
52 |
+ |
ahead->next = previous; |
53 |
+ |
} |
54 |
+ |
|
55 |
+ |
template<typename Type> |
56 |
+ |
void Node<Type>::removeNext(void) |
57 |
+ |
{ |
58 |
+ |
Node<Type>* behind = next->next; |
59 |
+ |
|
60 |
+ |
delete next; |
61 |
+ |
|
62 |
+ |
next = behind; |
63 |
+ |
next->previous = this; |
64 |
+ |
} |
65 |
+ |
|
66 |
+ |
template<typename Type> |
67 |
+ |
void Node<Type>::removePrevious(void) |
68 |
+ |
{ |
69 |
+ |
Node<Type>* ahead = previous->previous; |
70 |
+ |
|
71 |
+ |
delete previous; |
72 |
+ |
|
73 |
+ |
previous = ahead; |
74 |
+ |
previous->next = this; |
75 |
+ |
} |
76 |
+ |
|
77 |
|
#endif // _Node_hpp_ |