Input as a function example

	#include <iostream>
	using namespace std;
	int i=0;
	void input()
	{
	cin >> i;
	if (cin.fail())
	{
	cin.clear();
	cin.ignore(10000,'\n');
	i=10;
	}
	}
	int main()
	{
	do
	{
	cout << "Select a number (1 or 2), 0 to exit : ";
	input();
	switch (i)
	{
	case 0: cout << "Bye bye\n";
	break;
	case 1: cout << "User selected one\n";
	break;
	case 2: cout << "User selected two\n";
	break;
	default: cout << "User does not select 1 or 2, or maybe the user key in some letter\n";
	}
	}
	while (i!=0);
	}

view raw function input.cpp hosted with ❤ by GitHub