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call by reference c++ example

xyve on Mar 30, 2020

//call by reference example c++
#include <iostream>

using namespace std;

void swap(int& x, int& y) {
	cout << x << " " << y << endl;
	int temp = x;
	x = y;
	y = temp;
	cout << x << " " << y << endl;

}

int main() {
    
	int a = 7;
	int b = 9;

	swap(a, b);

}

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calling by reference c++

Creepy Cardinal on Apr 22, 2020

void fun3(int a)
{
    a = 10;
}

int main()
{
    int b = 1;
    fun3(b);
    // b  is still 1 now!
    return 0;   
}

Source: stackoverflow.com

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"call by reference c++ example" Code Answer's