Question

C++数据结构代码！请问下面的错误是什么意思？

template<class Telem>
class SqList:public List<Telem> {
private:

SqList(int maxsz=100):maxlen(maxsz) {
curlen=0;
Telem & elem;
int curlen;
int maxlen;
public:
elem= new Telem[maxlen];
}

SqList(Telem a[],int n,int maxsz=100):maxlen(maxsz) {
curlen=n;
elem=new Telem[maxlen];
for(int i=0;i<n;i++) elem[i]=a[i];
}

#include "stdafx.h"
#include "SqList.h"
#include<iostream>
using namespace std;
void main() {

char a[]={'a','b','c','d','e'};
SqList <char> sql1(a,5); //这里的问题
for(int i=1;i<=5;i++) cout<<sql1.gete(i)<<" ";
cout<<endl;
sql1.inver();
for(int i=1;i<=5;i++) cout<<sql1.gete(i)<<" ";
}

List.cpp
H:\PROGRAM FILES\VC6\MYPROJECTS\LESSON2\List\List.cpp(11) : error C2259: 'SqList<char>' : cannot instantiate abstract class due to following members:

Answer 1

无法实例化抽象类，大概是模板方面没弄好