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[C++] 通用类型数组

IT知识类型通用数组

【[C++] 通用类型数组】幽沉谢世事，俯默窥唐虞。这篇文章主要讲述[C++] 通用类型数组相关的知识，希望能为你提供帮助。
主函数

#include "通用类型数组.hpp"

class Person

public:
Person() ;
Person(string name, int age)

this-> m_name = name;
this-> m_age = age;


string m_name;
int m_age;
;

void myprintint(MyArray< int> & myintarray)

for (int i = 0; i < myintarray.getsize(); i++)

cout < < myintarray[i] < < endl;



void myprintperson(MyArray< Person> & mypersonarr)

for (int i = 0; i < mypersonarr.getsize(); i++)

cout < < "姓名 = " < < mypersonarr[i].m_name < < " 年龄 =" < < mypersonarr[i].m_age < < endl;



int main()

//int
MyArray< int> myintarray(100);
for (int i = 0; i < 10; i++)

myintarray.pushback(i + 100);

myprintint(myintarray);

cout < < "-----" < < endl;

//Person
MyArray< Person> mypersonarr(100);
Person p1("孙悟空", 1);
Person p2("猪八戒", 2);
Person p3("沙悟净", 3);
Person p4("唐三藏", 4);

mypersonarr.pushback(p1);
mypersonarr.pushback(p2);
mypersonarr.pushback(p3);
mypersonarr.pushback(p4);
myprintperson(mypersonarr);
cout < < "容量大小 = " < < mypersonarr.getcapacity() < < endl;
cout < < "数组大小 = " < < mypersonarr.getsize() < < endl;
return 0;



头文件
#pragma once
#include < iostream>
#include < string>
using namespace std;


//类模板
template< class T>
class MyArray

public:
//除非用户提供默认capacity 否则数组必须有默认构造


//有参构造
MyArray(int capacity)

this-> m_capacity = capacity;
this-> m_size = 0;
this-> paddress = new T[this-> m_capacity];


//拷贝构造
MyArray(const MyArray& arr)

this-> m_capacity = arr.capacity;
this-> m_size = arr.m_size;
this-> paddress = new T[this-> m_capacity];
for (int i = 0; i < arr.m_size; i++)

this-> paddress[i] = arr.paddress[i];




//重载=
MyArray& operator = (const MyArray& arr)

if (this-> paddress)

delete[] this-> paddress;
this-> paddress = NULL;

this-> m_capacity = arr.capacity;
this-> m_size = arr.m_size;
this-> paddress = new T[this-> m_capacity];
for (int i = 0; i < arr.m_size; i++)

this-> paddress[i] = arr.paddress[i];


return *this;


//重载[]
T& operator[](int index)

return this-> paddress[index];

//尾插法
void pushback(const T& val)

if (this-> m_capacity < = this-> m_size)

return;

this-> paddress[this-> m_size]

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