Answers for "how refrence and pointer works in a function"

C++
0

how refrence and pointer works in a function

int func (int a) {
	a = 300;
	return a;
}

int func2 (int& a) {
	a = -2;
	return a;
}

int func3 (long* a) {
	*a = 10;
	return *a;
}


int main()
{
	
	int a = 0;
	int b = 0;
	int c = 0;

	long *d = new long (300);

	cout << func(a) << ' ' << a << '\n'; // 300  0

	cout << func2(b) << ' ' << b << '\n'; // -2  -2

	cout << func3(d) << ' ' << *d << '\n'; // 10  10

	keep_window_open();
}
Posted by: Guest on July-29-2021

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