YehiaSAhmed/ASHWGA

CMP2241_Task 3 --> Const and & Report

Usages of const keyword:

Variables Decleration

int main()
{
	 const float pi = 3.14;
}

Making a finite large array

int main()
{
    const int x = 1000;
    int m[x];
}

Pointers Decleration

int main() 
{
	int x;
	cin >> x ;
	const int* p1 = &x;
	cout << p1 << endl;
}

---

Usages of & operator:

To get the address of the variable.

int main ()
{
    int x;
    cin >> x;
    cout << &x << endl;
}

To pass by reference.

void duplicate(int& n)
{
    n *= 2;
}
int main()
{
    int x;
    cin >>  x;
    duplicate(x);
    cout << x;
}

As bitwise operator.

int main()
{
    int a, b;
    cin >> a >> b;
    int s = a & b;
    cout << s << endl;
]