gpt4 book ai didi

C++ 不断收到错误 LNK2019 : unresolved external symbol

转载 作者:可可西里 更新时间:2023-11-01 18:19:05 28 4
gpt4 key购买 nike

<分区>

我试着用谷歌搜索这个,但总是遇到不同的问题。当我尝试编译这个程序时,我得到了 3 个 Unresolved external 问题:

1>main.obj : error LNK2019: unresolved external symbol "public: __thiscall DynIntStack<char>::~DynIntStack<char>(void)" (??1?$DynIntStack@D@@QAE@XZ) referenced in function _main
1>main.obj : error LNK2019: unresolved external symbol "public: void __thiscall DynIntStack<char>::pop(char &)" (?pop@?$DynIntStack@D@@QAEXAAD@Z) referenced in function _main
1>main.obj : error LNK2019: unresolved external symbol "public: void __thiscall DynIntStack<char>::push(char)" (?push@?$DynIntStack@D@@QAEXD@Z) referenced in function _main

DynIntStack.h

/****************************************************************************
DynIntStack class.

Chad Peppers

This class creates a object for stacking nodes

In addition, there should be member functions to perform the following
operations:
- Push to the stack
- Pop to the stack
- Function to check if empty

****************************************************************************/
// Specification file for the DynIntStack class
#ifndef DYNINTSTACK_H
#define DYNINTSTACK_H

template <class T>
class DynIntStack
{
private:
// Structure for stack nodes
struct StackNode
{
T value; // Value in the node
StackNode *next; // Pointer to the next node
};

StackNode *top; // Pointer to the stack top

public:
// Constructor
DynIntStack()
{ top = NULL; }

// Destructor
~DynIntStack();

// Stack operations
void push(T);
void pop(T &);
bool isEmpty();
};
#endif

DynIntStack.cpp

/****************************************************************************
DynIntStack class.

Chad Peppers

This class creates a object for stacking nodes

In addition, there should be member functions to perform the following
operations:
- Push to the stack
- Pop to the stack
- Function to check if empty

****************************************************************************/

#include <iostream>
#include "DynIntStack.h"
using namespace std;

/*************************************************************************
Basic class constructor.

Input Parameters: Information to build the stack

Return Type: void

*************************************************************************/

template<class T>
DynIntStack<T>::~DynIntStack()
{
StackNode *nodePtr, *nextNode;

// Position nodePtr at the top of the stack.
nodePtr = top;

// Traverse the list deleting each node.
while (nodePtr != NULL)
{
nextNode = nodePtr->next;
delete nodePtr;
nodePtr = nextNode;
}
}

/*************************************************************************
Function to push an item in the stack

Input Parameters: T

Return Type: void

*************************************************************************/

template<class T>
void DynIntStack<T>::push(T num)
{
StackNode *newNode; // Pointer to a new node

// Allocate a new node and store num there.
newNode = new StackNode;
newNode->value = num;

// If there are no nodes in the list
// make newNode the first node.
if (isEmpty())
{
top = newNode;
newNode->next = NULL;
}
else // Otherwise, insert NewNode before top.
{
newNode->next = top;
top = newNode;
}
}

/*************************************************************************
Function to pop an item in the stack

Input Parameters: T

Return Type: void

*************************************************************************/
template<class T>
void DynIntStack<T>::pop(T &num)
{
StackNode *temp; // Temporary pointer

// First make sure the stack isn't empty.
if (isEmpty())
{
cout << "The stack is empty.\n";
}
else // pop value off top of stack
{
num = top->value;
temp = top->next;
delete top;
top = temp;
}
}

/*************************************************************************
Basic class deconstructor.

Input Parameters: None

Return Type: void

*************************************************************************/
template<class T>
bool DynIntStack<T>::isEmpty()
{
bool status;

if (!top)
status = true;
else
status = false;

return status;
}

main.cpp

#include <iostream>
#include "DynIntStack.h"
using namespace std;

int main(){

int value = 0;
char value2;
//DynIntStack<int> stack;
DynIntStack<char> stack1;

cout << "Pushing 1\n";
stack1.push('T');
stack1.pop(value2);
cout << value2;

system("pause");
return 0;
}

28 4 0
Copyright 2021 - 2024 cfsdn All Rights Reserved 蜀ICP备2022000587号
广告合作:1813099741@qq.com 6ren.com