C++自定义数组

#ifndef _MYARRAY_H_
#define _MYARRAY_H_
#include<iostream>
#include<string>

template<class T>
class Myarray {

public:
//默认构造
Myarray(int capcity);
//拷贝构造
Myarray(const Myarray<T>& arr);
//重载[]
T& operator[](int index);
//重载=
Myarray<T>& operator=(const Myarray<T>& arr);
//在数组后面追加元素
void Pushback(T& data);
//对右值去引用
void Pushback(T&& data);
~Myarray();

public:
int m_Capacity;//总共能存多大的数据
int m_Size;//现在的数据尺寸
T* p_Addr;//数据指针
private:

};

 

 

template<class T>
Myarray<T>::Myarray<T>(int capcity) {
this->m_Capacity = capcity;
this->m_Size = 0;
this->p_Addr = new T[this->m_Capacity];

}
//拷贝构造
template<class T>
Myarray<T>::Myarray<T>(const Myarray<T>& arr) {
this->m_Size = arr.m_Size;
this->m_Capacity = arr.m_Capacity;
this->p_Addr = new T[this->m_Capacity];
for (int i = 0; i < this->m_Size; i++) {
this->p_Addr[i] = arr.p_Addr[i];
}
}

template<class T>
T& Myarray<T>::operator[](int index) {
return this->p_Addr[index];

}

template<class T>
Myarray<T>& Myarray<T>::operator=(const Myarray<T>& arr) {
if (this->p_Addr != NULL) {
delete[] this->p_Addr;
}
this->m_Size = arr.m_Size;
this->m_Capacity = arr.m_Capacity;
this->p_Addr = new T[this->m_Capacity];
for (int i = 0; i < this->m_Size; i++) {
this->p_Addr[i] = arr.p_Addr[i];
}

return *this;
}

template<class T>
void Myarray<T>::Pushback(T& data) {

//先判断容器中是否有位置
if (this->m_Size >= this->m_Capacity) {
return;
}
this->p_Addr[this->m_Size] = data;
this->m_Size++;
}

template<class T>
void Myarray<T>::Pushback(T&& data) {

//先判断容器中是否有位置
if (this->m_Size >= this->m_Capacity) {
return;
}
this->p_Addr[this->m_Size] = data;
this->m_Size++;
}

template<class T>
Myarray<T>::~Myarray() {
if (this->p_Addr != NULL) {
delete[] this->p_Addr;

}

}

#endif // !_MYARRAY_H_