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Create: 2022-07-04 Update: 2025-07-03 03:56:38

#pointer #اشاره_گر
🔴 تعریف اشاره گر

اشاره گر ها (Pointer) ویژگی های قدرتمند زبان ++C هستند که باعث تفاوت زبان سی پلاس پلاس با زبان های دیگر مانند Java و Python می شود.

🔻اشاره گر ها در ++C برای دسترسی به حافظه و تغییر مقادیر با استفاده از آدرس آن ها به کار می روند.

🔶 آدرس در ++C

🔻برای درک اشاره گر ها ابتدا باید بدانید تا داده ها چگونه در کامپیوتر ذخیره می شوند.

🔻هر متغیری را که در برنامه تان ایجاد می کنید، یک مکان در حافظه کامپیوتر به آن اختصاص داده می شود.

🔻مقادیر متغیر ها در واقع در مکان اختصاص داده شده ذخیره می شوند.

🔻برای دانستن اینکه داده ها در کجا ذخیره شده اند، ++C عملگر & را در اختیار ما گذاشته است.
عملگر & آدرس اشغال شده توسط هر متغیر را به ما می دهد.

🔅مثال : آدرس متغیر var را با var& بدست می آوریم.

'''#include <iostream>

using namespace std;

int main( )

{

    int var1 = 3;

    int var2 = 24;

    int var3 = 17;

    cout << &var1 << endl;

    cout << &var2 << endl;

    cout << &var3 << endl;

}'''

خروجی:
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نتیجه یکسانی با آنچه که من گرفتم را نداشته باشید.

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Telegram Gives Up On Crypto Blockchain Project

Durov said on his Telegram channel today that the two and a half year blockchain and crypto project has been put to sleep. Ironically, after leaving Russia because the government wanted his encryption keys to his social media firm, Durov’s cryptocurrency idea lost steam because of a U.S. court. “The technology we created allowed for an open, free, decentralized exchange of value and ideas. TON had the potential to revolutionize how people store and transfer funds and information,” he wrote on his channel. “Unfortunately, a U.S. court stopped TON from happening.”

#pointer #اشاره_گر

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