c – error：”尚未声明

我正在尝试实现链接列表,但在编译时会收到错误：

intsllst.cpp:38: error: ‘intsllist’ has not been declared

intsllist看起来像已经被声明给我,所以我真的很困惑.

intsllst.cpp

#include <iostream>
#include "intsllst.h"


int intsllist::deleteFromHead(){
}

int main(){

}

intsllst.h

#ifndef INT_LINKED_LIST
#define INT_LINKED_LIST
#include <cstddef>

class IntsllNode{
  int info;
  IntsllNode *next;

  IntsllNode(int el,IntsllNode *ptr = NULL){
    info = el; next = ptr;
  }

};

class Intsllist{
 public:
  Intsllist(){
    head = tail = NULL;
  }

  ~Intsllist();

  int isEmpty();
  bool isInList(int) const;

  void addToHead(int);
  void addToTail(int);

  int deleteFromHead();
  int deleteFromTail();
  void deleteNode(int);

 private:
  IntsllNode *head,*tail;

};

#endif

解决方法

你在使用小写字母我

int intsllist::deleteFromHead(){
}

应该

int Intsllist::deleteFromHead(){
}

c中的名称总是区分大小写.