C++ 的原型与类中的任何原型都不匹配
在编译这个程序时遇到了很多麻烦。以下是完整错误列表（如果有帮助）：C++ 的原型与类中的任何原型都不匹配,c++,C++,在编译这个程序时遇到了很多麻烦。以下是完整错误列表（如果有帮助）： PriorityQueueHasAStackedQueue.cpp:16:52: error: ISO C++ forbids declaration of 'isEmpty' with no type [-fpermissive] PriorityQueueHasAStackedQueue<ItemType>::isEmpty() const
PriorityQueueHasAStackedQueue.cpp:16:52: error: ISO C++ forbids declaration of 'isEmpty' with no type [-fpermissive]
PriorityQueueHasAStackedQueue<ItemType>::isEmpty() const
^
PriorityQueueHasAStackedQueue.cpp:16:1: error: prototype for 'int PriorityQueueHasAStackedQueue<ItemType>::isEmpty() const' does not match any in class 'PriorityQueueHasAStackedQueue<ItemType>'
PriorityQueueHasAStackedQueue<ItemType>::isEmpty() const
^
In file included from PriorityQueueHasAStackedQueue.cpp:6:0,
from project4.cpp:9:
PriorityQueueHasAStackedQueue.h:22:7: error: candidate is: bool PriorityQueueHasAStackedQueue<ItemType>::isEmpty() const
bool isEmpty() const;
^
In file included from project4.cpp:9:0:
PriorityQueueHasAStackedQueue.cpp:22:74: error: ISO C++ forbids declaration of 'enqueue' with no type [-fpermissive]
PriorityQueueHasAStackedQueue<ItemType>::enqueue(const ItemType& newEntry)
^
PriorityQueueHasAStackedQueue.cpp:22:1: error: prototype for 'int PriorityQueueHasAStackedQueue<ItemType>::enqueue(const ItemType&)' does not match any in class 'PriorityQueueHasAStackedQueue<ItemType>'
PriorityQueueHasAStackedQueue<ItemType>::enqueue(const ItemType& newEntry)
^
In file included from PriorityQueueHasAStackedQueue.cpp:6:0,
from project4.cpp:9:
PriorityQueueHasAStackedQueue.h:23:7: error: candidate is: bool PriorityQueueHasAStackedQueue<ItemType>::enqueue(const ItemType&)
bool enqueue(const ItemType& newEntry);
^
In file included from project4.cpp:9:0:
PriorityQueueHasAStackedQueue.cpp:30:50: error: ISO C++ forbids declaration of 'dequeue' with no type [-fpermissive]
PriorityQueueHasAStackedQueue<ItemType>::dequeue()
^
PriorityQueueHasAStackedQueue.cpp:30:1: error: prototype for 'int PriorityQueueHasAStackedQueue<ItemType>::dequeue()' does not match any in class 'PriorityQueueHasAStackedQueue<ItemType>'
PriorityQueueHasAStackedQueue<ItemType>::dequeue()
^
In file included from PriorityQueueHasAStackedQueue.cpp:6:0,
from project4.cpp:9:
PriorityQueueHasAStackedQueue.h:24:7: error: candidate is: bool PriorityQueueHasAStackedQueue<ItemType>::dequeue()
bool dequeue();
^
In file included from project4.cpp:9:0:
PriorityQueueHasAStackedQueue.cpp:48:49: error: ISO C++ forbids declaration of 'peek' with no type [-fpermissive]
PriorityQueueHasAStackedQueue<ItemType>::peek() const
^
PriorityQueueHasAStackedQueue.cpp:48:1: error: prototype for 'int PriorityQueueHasAStackedQueue<ItemType>::peek() const' does not match any in class 'PriorityQueueHasAStackedQueue<ItemType>'
PriorityQueueHasAStackedQueue<ItemType>::peek() const
^
In file included from PriorityQueueHasAStackedQueue.cpp:6:0,
from project4.cpp:9:
PriorityQueueHasAStackedQueue.h:25:11: error: candidate is: ItemType PriorityQueueHasAStackedQueue<ItemType>::peek() const
ItemType peek() const;
^
PriorityQueueHasAStackedQueue.h: In function 'void testPriorityQueue(int*, int)':
PriorityQueueHasAStackedQueue.h:21:2: error: 'PriorityQueueHasAStackedQueue<ItemType>::PriorityQueueHasAStackedQueue() [with ItemType = int]' is private
PriorityQueueHasAStackedQueue();
^
project4.cpp:40:79: error: within this context
PriorityQueueInterface<int>* pQueue = new PriorityQueueHasAStackedQueue<int>();
#ifndef PRIORITY_QUEUE_HAS_A_STACKED_QUEUE_
#define PRIORITY_QUEUE_HAS_A_STACKED_QUEUE_
#include "PriorityQueueInterface.h"
#include "QueueAsAStack.h"
#include "LinkedStack.h"
template<class ItemType>
class PriorityQueueHasAStackedQueue : public PriorityQueueInterface<ItemType>
{
//private:
PriorityQueueHasAStackedQueue<int>* pq = new PriorityQueueHasAStackedQueue<int>();
PriorityQueueHasAStackedQueue<int>* temp = new PriorityQueueHasAStackedQueue<int>();
//public:
PriorityQueueHasAStackedQueue();
bool isEmpty() const;
bool enqueue(const ItemType& newEntry);
bool dequeue();
ItemType peek() const;
};
#endif
\ifndef PRIORITY\u QUEUE\u具有堆叠队列_
#定义优先级队列具有堆叠队列_
#包括“PriorityQueueInterface.h”
#包括“QueueAsAStack.h”
#包括“LinkedStack.h”
模板
类PriorityQueueHasTackedQueue:公共PriorityQueueInterface
{
//私人：
PriorityQueueHasAStackedQueue*pq=新建PriorityQueueHasAStackedQueue（）；
PriorityQueueHasAStackedQueue*temp=new PriorityQueueHasAStackedQueue（）；
//公众：
PriorityQueueHasTackedQueue（）；
bool isEmpty（）常量；
bool排队（const ItemType和newEntry）；
bool-dequeue（）；
ItemType peek（）常量；
};
#恩迪夫
#include "PriorityQueueHasAStackedQueue.h"
#include "PriorityQueueInterface.h"
#include "LinkedStack.h"
template<class ItemType>
PriorityQueueHasAStackedQueue<ItemType>::PriorityQueueHasAStackedQueue()
{
}
template<class ItemType>
PriorityQueueHasAStackedQueue<ItemType>::isEmpty() const
{
return pq.peek() == nullptr;
}
template<class ItemType>
PriorityQueueHasAStackedQueue<ItemType>::enqueue(const ItemType& newEntry)
{
pq.push(newEntry);
return true;
}
template<class ItemType>
PriorityQueueHasAStackedQueue<ItemType>::dequeue()
{
while(!pq.isEmpty()){
temp.push(pq.peek());
pq.pop();
}
temp.pop();
while(!temp.isEmpty()){
pq.push(temp.peek());
temp.pop();
}
return true;
}
template<class ItemType>
PriorityQueueHasAStackedQueue<ItemType>::peek() const
{
PriorityQueueHasAStackedQueue<int> peekedItem;
while(!pq.isEmpty()){
temp.push(pq.peek());
pq.pop();
}
peekedItem = temp.peek();
while(!temp.isEmpty()){
pq.push(temp.peek());
temp.pop();
}
return peekedItem;
}
#包括“PriorityQueueHasAStackedQueue.h”
#包括“PriorityQueueInterface.h”
#包括“LinkedStack.h”
模板
PriorityQueueHasAStackedQueue:：PriorityQueueHasAStackedQueue（）
{
}
模板
PriorityQueueHasAStackedQueue:：isEmpty（）常量
{
返回pq.peek（）==nullptr；
}
模板
PriorityQueueHasAStackedQueue:：enqueue（const ItemType和newEntry）
{
pq.推送（新条目）；
返回true；
}
模板
PriorityQueueHasAStackedQueue:：dequeue（）
{
而（！pq.isEmpty（））{
温度推动（pq.peek（））；
pq.pop（）；
}
temp.pop（）；
而（！temp.isEmpty（））{
质量推送（温度peek（））；
temp.pop（）；
}
返回true；
}
模板
PriorityQueueHasAStackedQueue:：peek（）常量
{
PriorityQueueHasTackedQueuePeeEdItem；
而（！pq.isEmpty（））{
温度推动（pq.peek（））；
pq.pop（）；
}
peekedItem=临时peek（）；
而（！temp.isEmpty（））{
质量推送（温度peek（））；
temp.pop（）；
}
返回peek-editem；
}
#ifndef PRIORITY_QUEUE_INTERFACE_
#define PRIORITY_QUEUE_INTERFACE_
template<class ItemType>
class PriorityQueueInterface
{
public:
/** Sees whether this priority queue is empty.
@return True if the priority queue is empty, or false if not. */
virtual bool isEmpty() const = 0;
/** Adds a new entry to this priority queue.
@post If the operation was successful, newEntry is in the
priority queue.
@param newEntry The object to be added as a new entry.
@return True if the addition is successful or false if not. */
virtual bool enqueue(const ItemType& newEntry) = 0;
/** Removes from this priority queue the entry having the
highest priority.
@post If the operation was successful, the highest priority
entry has been removed.
@return True if the removal is successful or false if not. */
virtual bool dequeue() = 0;
/** Returns the highest-priority entry in this priority queue.
@pre The priority queue is not empty.
@post The highest-priority entry has been returned, and the
priority queue is unchanged.
@return The highest-priority entry. */
virtual ItemType peek() const = 0;
/** Destroys object and frees memory allocated by object. */
virtual ~PriorityQueueInterface() { }
}; // end PriorityQueueInterface
#endif
\ifndef优先级队列\u接口_
#定义优先级队列接口_
模板
类优先级队列接口
{
公众：
/**查看此优先级队列是否为空。
@如果优先级队列为空，则返回True；否则返回false*/
虚拟布尔isEmpty（）常量=0；
/**将新条目添加到此优先级队列。
@post如果操作成功，则newEntry位于
公共关系
template<class ItemType>
PriorityQueueHasAStackedQueue<ItemType>::isEmpty() const
{
return pq.peek() == nullptr;
}
template<class ItemType>
bool PriorityQueueHasAStackedQueue<ItemType>::isEmpty() const
{
return pq.peek() == nullptr;
}
temp.pop();
temp->pop();