// ============================================================================
//  p1c05_12  —  5.8 类模板的应用
//  来源：川大 C++/LinuxC wiki「02.Qt方向」
//  说明：本文件由 gen_part1.py 合并页面中的教学片段而成。每个片段用
//        // --- 原文片段 [pageId:blockIdx] --- 标注出处。
//        已做最小修正（笔误/平台移植），详见 docs/ERRATA.md。
// ============================================================================

#include <iostream>
using namespace std;
#include <string>

// --- 原文片段 [58954472:11]  5.8 类模板的应用 ---
#include <string>
using std::string;

template<class T>
class MyArray {
public:
	explicit MyArray(int capacity) {
		this->m_Capacity = capacity;
		this->m_Size = 0;
		// 如果T是对象，那么这个对象必须提供默认的构造函数
		pAddress = new T[this->m_Capacity];
	}
	MyArray(const MyArray& arr) {
		this->m_Capacity = arr.m_Capacity;
		this->m_Size = arr.m_Size;
		this->pAddress = new T[this->m_Capacity];
		for (int i = 0; i < this->m_Size; i++) {
			this->pAddress[i] = arr.pAddress[i];
		}
	}
	T& operator[](int index) { return this->pAddress[index]; }
	void Push_back(const T& val) {
		if (this->m_Capacity == this->m_Size) return;
		this->pAddress[this->m_Size] = val;
		this->m_Size++;
	}
	void Pop_back() { if (this->m_Size > 0) this->m_Size--; }
	int getSize() { return this->m_Size; }
	~MyArray() {
		if (this->pAddress != NULL) {
			delete[] this->pAddress;
			this->pAddress = NULL;
			this->m_Capacity = 0;
			this->m_Size = 0;
		}
	}
private:
	T* pAddress;
	int m_Capacity;
	int m_Size;
};

class Person {
public:
	Person() {}
	Person(string name, int age) { this->mName = name; this->mAge = age; }
public:
	string mName;
	int mAge;
};

void PrintMyArrayInt(MyArray<int>& arr) {
	for (int i = 0; i < arr.getSize(); i++) {
		cout << arr[i] << " ";
	}
	cout << endl;
}

void PrintMyPerson(MyArray<Person>& personArr) {
	for (int i = 0; i < personArr.getSize(); i++) {
		cout << "姓名:" << personArr[i].mName << " 年龄:" << personArr[i].mAge << endl;
	}
}

// --- 测试代码（原文为文件作用域裸语句，已包进 main 使其可编译运行）---
int main() {
	MyArray<int> myArrayInt(10);
	for (int i = 0; i < 9; i++) {
		myArrayInt.Push_back(i);
	}
	myArrayInt.Push_back(100);
	PrintMyArrayInt(myArrayInt);

	MyArray<Person> myArrayPerson(10);
	Person p1("德玛西亚", 30);
	Person p2("提莫", 20);
	Person p3("孙悟空", 18);
	Person p4("赵信", 15);
	Person p5("赵云", 24);
	myArrayPerson.Push_back(p1);
	myArrayPerson.Push_back(p2);
	myArrayPerson.Push_back(p3);
	myArrayPerson.Push_back(p4);
	myArrayPerson.Push_back(p5);
	PrintMyPerson(myArrayPerson);
	return 0;
}

// --- main ---