Guys in cpp I create a program has variable x and this program ask for the user input to give the value of x like this program :

Question

int x;
cin>> x;

How can I make the user to re -input the value of x with cleaning the first input without writing cin twice

Answer 1

Use loops

Answer 2

I usually do it with a loop

int a = 0;
int x;
while ( a == 0){
cin>>x;
a++;
}

Don't know what this achieves though :p