イテレータを使用して独自のテンプレート リスト クラスを作成していますが、このエラーが発生しました(((コンパイラ: MinGW の GCC(私は Eclipse IDE を使用しています) 私のコード: cpp:
#include <iostream>
#include "tlist.h"
using namespace std;
int main(){
return 0;
}
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template<typename T>
class element{
private:
element<T>* pre;
element<T>* next;
T data;
public:
element(){};
~element(){};
element(T d){
pre=NULL;
next=NULL;
data=d;
}
void SetPre(element<T>* a){
pre=a;
};
void SetNext(element<T>* a){
next=a;
};
void SetData(T d){
data=d;
}
element<T>* GetPre(){
return pre;
}
element<T>* GetNext(){
return next;
}
T GetData(){
return data;
}
};
template<typename T>
class Tlist{
private:
element<T>* first;
element<T>* last;
int size;
public:
int GetSize(){
return size;
}
Tlist(){
first=NULL;
last=NULL;
size=0;
}
~Tlist(){};
Tlist(T d){
element<T>* tmp;
tmp->SetPre(NULL);
tmp->SetNext(NULL);
tmp->SetData(d);
this->size=1;
this->first=tmp;
this->last=tmp;
}
class Iterator{
private:
element<T>* pointing;
public:
Iterator(){
pointing=NULL;
};
~Iterator(){};
Tlist<T>::Iterator& operator++(int i);
element<T>* operator*();
Iterator(element<T>* b){
pointing=b;
}
};
bool empty();
void clear();
void swap(Tlist<T>& lst);
Tlist<T>::Iterator begin();
Tlist<T>::Iterator end();
T front();
T back();
void push_back(T t);
void push_front(T t);
void pop_front();
void pop_back();
Tlist<T>::Iterator insert(Tlist<T>::Iterator pos,T data);
Tlist<T>::Iterator erase(Tlist<T>::Iterator pos);
void splice(Tlist<T>::Iterator pos,Tlist<T>* in);
Tlist<T> operator=(Tlist<T> const &other){
this->size=other.size;
this->first=other.first;
this->last=other.last;
return *this;
};
};
template<typename T>
Tlist<T>::Iterator& Tlist<T>::Iterator::operator++(int i){
element<T>* temp=*this;
if(temp->GetNext()!=NULL) this->pointing=temp->GetNext();
return *this;
}
template<typename T>
element<T>* Tlist<T>::Iterator::operator*(){
return pointing;
}
template<typename T>
bool Tlist<T>::empty(){
if(this->size==0) return true;
else return false;
};
template<typename T>
void Tlist<T>::clear(){
element<T>* son;
element<T>* temp;
son=this->first;
while(son!=NULL){
temp=son->next;
delete son;
son=temp;
}
this->size=0;
};
template<typename T>
void Tlist<T>::swap(Tlist<T>& lst){
int temp=this->size;
this->size=lst->size;
lst->size=temp;
Tlist<T>* tmp;
*tmp=*this;
*this=lst;
lst=*tmp;
}
template<typename T>
Tlist<T>::Iterator Tlist<T>::begin(){
Tlist<T>::Iterator res(this->first);
return res;
};
template<typename T>
Tlist<T>::Iterator Tlist<T>::end(){
Tlist<T>::Iterator res(this->last);
return res;
}
template<typename T>
T Tlist<T>::front(){
return this->first->GetData();
}
template<typename T>
T Tlist<T>::back(){
return this->last->GetData();
};
template<typename T>
void Tlist<T>::push_front(T d){
element<T>* temp(d);
this->size++;
this->first->SetPre(temp);
temp->SetNext(this->first);
this->first=temp;
}
template<typename T>
void Tlist<T>::push_back(T d){
element<T>* temp(d);
this->last->SetNext(temp);
this->size++;
temp->SetPre(this->last);
this->last=temp;
}
template<typename T>
void Tlist<T>::pop_front(){
element<T>* temp=this->first->GetNext;
delete this->first;
this->first=temp;
this->size--;
}
template<typename T>
void Tlist<T>::pop_back(){
element<T>* temp=this->last;
delete this->last;
this->last=temp;
this->size--;
}
template<typename T>
Tlist<T>::Iterator Tlist<T>::insert(Tlist<T>::Iterator pos,T d){
element<T>* temp(d);
element<T>* p=*pos;
element<T>* n=p->GetNext();
p->SetNext(temp);
temp->SetPre(p);
if(n!=NULL){
n->SetPre(temp);
temp->SetNext(n);
}
this->size++;
return pos++;
}
template<typename T>
Tlist<T>::Iterator Tlist<T>::erase(Tlist<T>::Iterator pos){
if(pos==this->end()){
this->pop_back();
return this->end();
}
if(pos==this->begin()){
this->pop_front();
return this->begin();
}
else{
element<T>* del=*pos;
element<T>* p=del->GetPre();
element<T>* n=del->GetNext();
pos++;
p->SetNext(n);
n->SetPre(p);
delete del;
this->size--;
return pos;
}
};
template<typename T>
void Tlist<T>::splice(Tlist<T>::Iterator pos,Tlist<T>* a){
this->size+=a->GetSize();
element<T>* p=*pos;
element<T>* n=p->GetNext();
p->SetNext(a->first);
a->first->SetPre(p);
n->SetPre(a->last);
a->last->SetNext(n);
a->size=0;
a->first=NULL;
a->last=NULL;
}
エラーは次のとおりです。
..\tlist.h:99: error: expected constructor, destructor, or type conversion before '&' token
..\tlist.h:136: error: expected constructor, destructor, or type conversion before 'Tlist'
..\tlist.h:141: error: expected constructor, destructor, or type conversion before 'Tlist'
..\tlist.h:184: error: expected constructor, destructor, or type conversion before 'Tlist'
..\tlist.h:198: error: expected constructor, destructor, or type conversion before 'Tlist'
助けてください、できればお願いします