I can't instantiate this template class in C++. The C++ classes are below. What am I doing wrong? Error LNK2019 unresolved external symbol "public: __cdecl ArrayList::ArrayList(int)" (??0?$ArrayList@H@@QEAA@H@Z) referenced in function main Error LNK2019 unresolved external symbol "public: __cdecl ArrayList::~ArrayList(void)" (??1?$ArrayList@H@@QEAA@XZ) referenced in function main Main.cpp #include "ArrayList.h" int main() { ArrayList myList(10); } ArrayList.cpp #include "ArrayList.h" template bool ArrayList::isEmpty() const { return (length == 0); } template bool ArrayList::isFull() const { return (length == maxSize); } template int ArrayList::listSize() const { return length; } template int ArrayList::maxListSize() const { return maxSize; } template void ArrayList::insertEnd(const Type &insertItem) { if (length >= maxSize) // the list is fullcout cout << "Cannot insert in a full list" << endl; else { list[length] = insertItem; // insert the item at the end length++; // increment the length } } template void ArrayList::clearList() { length = 0; } template ArrayList::ArrayList(int size) { if (size < 0) { cout << "the array size must be positive. Creating " << "an array of size 100. " << endl; maxSize = 100; } else maxSize = size; length = 0; list = new Type[maxSize]; assert(list != NULL); } template ArrayList::ArrayList(const ArrayList &otherList) { maxSize = otherList.maxSize; length = otherList.length; list = new Type[maxSize]; // create the arrayassert(list != NULL); // terminate if unable to allocate//memory space for (int j = 0; j < length; j++) // copy otherList list[j] = otherList.list[j]; } template ArrayList::~ArrayList() { } ArrayList.h #include using namespace std; template class ArrayList { public: bool isEmpty() const; bool isFull() const; int listSize() const; int maxListSize() const; void insertEnd(const Type& insertItem); ArrayList(int size = 100); // constructor ArrayList(const ArrayList& otherList); // copy constructor ~ArrayList(); protected: Type* list; int length; int maxSize; };

I can't instantiate this template class in C++. The C++ classes are below. What am I doing wrong? Error LNK2019 unresolved external symbol "public: cdecl ArrayList::ArrayList(int)" (??0?$ArrayList@H@@QEAA@H@Z) referenced in function main Error LNK2019 unresolved external symbol "public: cdecl ArrayList::~ArrayList(void)" (??1?$ArrayList@H@@QEAA@XZ) referenced in function main Main.cpp #include "ArrayList.h" int main() { ArrayList myList(10); } ArrayList.cpp #include "ArrayList.h" template bool ArrayList::isEmpty() const { return (length == 0); } template bool ArrayList::isFull() const { return (length == maxSize); } template int ArrayList::listSize() const { return length; } template int ArrayList::maxListSize() const { return maxSize; } template void ArrayList::insertEnd(const Type &insertItem) { if (length >= maxSize) // the list is fullcout cout << "Cannot insert in a full list" << endl; else { list[length] = insertItem; // insert the item at the end length++; // increment the length } } template void ArrayList::clearList() { length = 0; } template ArrayList::ArrayList(int size) { if (size < 0) { cout << "the array size must be positive. Creating " << "an array of size 100. " << endl; maxSize = 100; } else maxSize = size; length = 0; list = new Type[maxSize]; assert(list != NULL); } template ArrayList::ArrayList(const ArrayList &otherList) { maxSize = otherList.maxSize; length = otherList.length; list = new Type[maxSize]; // create the arrayassert(list != NULL); // terminate if unable to allocate//memory space for (int j = 0; j < length; j++) // copy otherList list[j] = otherList.list[j]; } template ArrayList::~ArrayList() { } ArrayList.h #include using namespace std; template class ArrayList { public: bool isEmpty() const; bool isFull() const; int listSize() const; int maxListSize() const; void insertEnd(const Type& insertItem); ArrayList(int size = 100); // constructor ArrayList(const ArrayList& otherList); // copy constructor ~ArrayList(); protected: Type* list; int length; int maxSize; };

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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I can't instantiate this template class in C++. The C++ classes are below. What am I doing wrong?

Error LNK2019 unresolved external symbol "public: __cdecl ArrayList<int>::ArrayList<int>(int)" (??0?$ArrayList@H@@QEAA@H@Z) referenced in function main

Error LNK2019 unresolved external symbol "public: __cdecl ArrayList<int>::~ArrayList<int>(void)" (??1?$ArrayList@H@@QEAA@XZ) referenced in function main

Main.cpp

#include "ArrayList.h"

int main()
{
ArrayList<int> myList(10);

}

ArrayList.cpp

#include "ArrayList.h"

template <class Type>

bool ArrayList<Type>::isEmpty() const

{

return (length == 0);

}

template <class Type>

bool ArrayList<Type>::isFull() const

{

return (length == maxSize);

}

template <class Type>

int ArrayList<Type>::listSize() const

{

return length;

}

template <class Type>

int ArrayList<Type>::maxListSize() const

{

return maxSize;

}

template <class Type>

void ArrayList<Type>::insertEnd(const Type &insertItem)

{

if (length >= maxSize) // the list is fullcout

cout << "Cannot insert in a full list" << endl;

else

{

list[length] = insertItem; // insert the item at the end

length++; // increment the length

}

template <class Type>

void ArrayList<Type>::clearList()

{

length = 0;

}

template <class Type>

ArrayList<Type>::ArrayList(int size)

{

if (size < 0)

{

cout << "the array size must be positive. Creating "

<< "an array of size 100. " << endl;

maxSize = 100;

}

else

maxSize = size;

length = 0;

list = new Type[maxSize];

assert(list != NULL);

}

template <class Type>

ArrayList<Type>::ArrayList(const ArrayList<Type> &otherList)

{

maxSize = otherList.maxSize;

length = otherList.length;

list = new Type[maxSize]; // create the

arrayassert(list != NULL); // terminate if unable to allocate//memory space

for (int j = 0; j < length; j++) // copy otherList

list[j] = otherList.list[j];

}

template<class Type>

ArrayList<Type>::~ArrayList()

{

}

ArrayList.h

#include <iostream>

using namespace std;

template <class Type>

class ArrayList

{

public:

bool isEmpty() const;

bool isFull() const;

int listSize() const;

int maxListSize() const;

void insertEnd(const Type& insertItem);

ArrayList(int size = 100); // constructor

ArrayList(const ArrayList<Type>& otherList); // copy constructor

~ArrayList();

protected:

Type* list;

int length;

int maxSize;

};

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