64,691
社区成员
发帖
与我相关
我的任务
分享未知类型的数组怎么在构造函数中初始化？
未知类型的数组怎么在构造函数中初始化？
代码是这样的：
template<class T>
class deque{
public:
struct nodeT{
nodeT *prev;
nodeT *next;
T arr[nodeN];
int curLength;
nodeT(){
prev = NULL;
next = NULL;
curLength = 0;
}
};
报错： Constructor for 'sjtu::deque<Integer>::nodeT' must explicitly initialize the member 'arr' which does not have a default constructor
代码是这样的：
template<class T>
class deque{
public:
struct nodeT{
nodeT *prev;
nodeT *next;
T arr[nodeN];
int curLength;
nodeT(){
prev = NULL;
next = NULL;
curLength = 0;
}
};
报错： Constructor for 'sjtu::deque<Integer>::nodeT' must explicitly initialize the member 'arr' which does not have a default constructor
...全文
请发表友善的回复…
发表回复
真相重于对错 2018-11-06
- 打赏
- 举报
数组必须固定大小
T arr[nodeN]; nodeN如果不是常数，会报错
T arr[nodeN]; nodeN如果不是常数，会报错
