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모닝의 컴퓨터 스토리 :: [c++] 구조체와 클래스 (tistory.com)

[c++] 구조체와 클래스

내 코드(구조체   //  tv)

#include <iostream>
using namespace std;

struct tv {
public:
	int ch;
	int vol;
	int MaxCh = 100;
	int MinCh = 1;
	int MaxVol = 100;
	int MinVol = 0;
	void volp(int vol);
	void volm(int vol);
	void chp(int ch);
	void chm(int ch);
	void initMem(int ch, int vol);
	void show_Info();
	void power(bool t);
};

void tv::power(bool t)
{
	if (t == true)
		cout << "=====전원 on=====" << endl;
	else
		cout << "=====전원 off======" << endl;
}
void tv::initMem(int ch, int vol)
{
	for (;;)
	{
		if (ch>=0&&ch<=100 &&vol<=100 && vol>= 0)
		{
			this->ch = ch;
			this->vol = vol;
			break;
		}
		else
		{
			cout << "범위를 벗어난 볼륨이거나 채널입니다." << endl;
			cout << "ch: ";
			cin >> ch;
			cout << "vol: ";
			cin >> vol;
			return initMem(ch, vol);
		}
	}

}
void tv::volp(int vol)
{
	this->vol +=vol;
	if (this->vol >= MaxVol)
	{
		this->vol = MaxVol;
	}

}
void tv::volm(int vol)
{
	this->vol -= vol;
	if (this->vol <= MinVol)
	{
		this->vol = MinVol;
	}
}
void tv::chp(int ch)
{
	this->ch += ch;
	if (this->ch > MaxCh)
		this->ch = MinCh;
}
void tv::chm(int ch)
{
	this->ch -= ch;
	if (this->ch < MinCh)
		this->ch = MaxCh;
}
void tv::show_Info()
{
	cout << "ch: " << ch << endl;
	cout << "vol: " << vol << endl;
}
int main(void)
{
	tv remote;
	remote.power(true);
	remote.initMem(1, 150);
	remote.show_Info();
	remote.chp(10);
	remote.volp(50);
	remote.show_Info();

	remote.volm(1000);
	remote.show_Info();
	remote.power(false);
	system("pause");

}

 

내 코드 (클래스  /// TV)

#include<iostream>

using namespace std;

class rm_controller {
private:
	int vol;
	int ch;
	bool on_off;
	int MaxVol = 100;
	int MinVol = 0;
	int MaxCh = 100;
	int MinCh = 1;
public:
	rm_controller(int vol, int ch);
	~rm_controller() { cout<< "생성자 소멸" << endl; } // 왜 안나올까? 자동으로 나와야하는거아님?
	void volP(int vol);
	void volM(int vol);
	void chP(int ch);
	void chM(int ch);
	void Power(bool on_off);
	void showInfo();
};

rm_controller::rm_controller(int vol, int ch)
{
	cout << "생성자 생성" << endl;
	this->vol = vol;
	this->ch = ch;
}
void rm_controller::volP(int vol)
{
	this->vol += vol;
	if (this->vol > 100)
		this->vol = 100;
}
void rm_controller::volM(int vol)
{
	this->vol -= vol;
	if (this->vol < 0)
		this->vol = 0;
}
void rm_controller::chP(int ch)
{
	this->ch += ch;
	if (this->ch > MaxCh&&this->ch<=1000)
		this->ch = this->ch/100; // 나머지로 101 -> 1번 ,102 -> 2번.... 1000 -> 100번
}
void rm_controller::chM(int ch)
{
	this->ch -= ch;
	if (this->ch < MinCh && this->ch > -100)
	{
		this->ch = -this->ch; // -로 갈 시 + 변환, 
	}

}
void rm_controller::Power(bool on_off)
{
	this->on_off = on_off;
	if (this->on_off == 1)
	{
		cout << "TV ON" << endl;
	}
	else
		cout << "TV OFF" << endl;
}
void rm_controller::showInfo()
{
	cout << "************************" << endl;
	cout << "tv 상태" << endl;
	cout << "=======================" << endl;
	cout << "켜짐 여부: ";
	rm_controller::Power(on_off);
	cout << "=======================" << endl;
	cout << "ch: " << ch << endl;
	cout << "=======================" << endl;
	cout << "vol: " << vol << endl;
	cout << "************************" << endl;
}
int main(void)
{
	rm_controller remot(10, 10);
	remot.Power(true);
	remot.chM(20);
	remot.showInfo();
	remot.chP(100);
	remot.volP(5);
	remot.showInfo();
	remot.Power(false);
	remot.showInfo();

	system("pause");
}

소멸자 자동으로 실행되는거 아닌가?