Question

我正在制作Vector模板类并遇到错误 LNK2019：未解析的外部符号“public：__thiscall SimpleVector :: SimpleVector（int）”（?? 0？$ SimpleVector @ H @@ QAE @ H @ Z）在函数_main 中引用每当我尝试调用main中的任何函数时。我研究过我可以在main.cpp文件中包含函数定义.cpp文件，或者在我的函数定义.cpp中包含main，并且这两种方法都解决了问题，但我认为实际上并没有修复代码中的底层问题。我的问题是我的代码中是否存在任何导致此问题的代码。

SimpVec.h

    #ifndef SIMPLEVECTOR
    #define SIMPLEVECTOR
template <class T>
class SimpleVector
 {
private:
    T* aptr;
    int arraySize;
public:

    SimpleVector();

    SimpleVector(int);

    SimpleVector(const SimpleVector&);

    ~SimpleVector();

    int size() const { return arraySize; }

    T getElementAt(int position);

    T& operator[](int);

    void pushBack(double);
};


#endif SIMPLEVECTOR// !SIMPLEVECTOR

SimpVecFunc.cpp

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

template <class T>
SimpleVector<T>::SimpleVector()
{
    aptr(0);
    arraySize(0);
}

template <class T>
SimpleVector<T>::SimpleVector(int s)
{
    arraySize = s;
    aptr = new T[s];
    std::cout<<"Array created"<<std::endl;

}

template <class T>
SimpleVector<T>::SimpleVector(const SimpleVector& v)
{
    arraySize = v.arraySize;

    aptr = new T[arraySize];

    for (int i = 0; i < arraySize; i++)
        *(aptr + i) = *(v.aptr + i);
}

template <class T>
SimpleVector<T>::~SimpleVector()
{
    if (arraySize > 0)
        delete[] aptr;
}

template <class T>
T SimpleVector<T>::getElementAt(int sub)
{
    return aptr[sub];
}


template <class T>
T& SimpleVector<T>::operator[](int sub)
{
    return aptr[sub];
}

template <class T>
void SimpleVector<T>::pushBack(double Val)
{
    for (int index = 0, index++)
    {
        if (this->aptr[i] = 0)
        {
            this->aptr[i] = Val;

            std::cout << "Added to current array size not change need" << std::endl;
            return
        }
        if (index < this->arraysize)
        {
            SimpleVector<T> temP();
            temP.arraySize = this->arraySize + 1;
            aptr = new T[arraySize];

            for (int i = 0; i < arraySize; i++)
            {
                *(aptr + i) = *(v.aptr + i);
            }

            temP.aptr[this->arraySize] = Val;
            std::cout << "Array was resized and pushd back" << std::endl;
            return;
        }

    }

}

Driver.cpp

#include "SimpVec.h"

void main()
{
    SimpleVector<int> TEST1(3);

}

LNK2019错误无法使用任何功能

0 个答案: