Clearing the Input Buffer

[skittlekev]

Using cin.sync() works great so far, but my program still breaks if you copy something with multiple lines into the console.

string test = "";
while(true)
{
     cin.sync();
     getline(cin, test );
        
        
     cout << endl << "test: " << test << endl;
}

However, if you were to copy this:
1
2
3

and paste it into the program, the output would be

1
2
3
test: 1

test: 2

And if you press enter one more time:

1
2
3
test: 1

test: 2


test: 3

The 3 finally pops out.


Is there any way to fix this problem?

[helios]

Works for me.

1
Test: 1
2
Test: 2
3
Test: 3

[Cubbi]

The behavior of cin.sync() is implementation-defined: different compilers do different things.

Just don't use it. If you need to ignore some input, use cin.ignore, but in this example, nothing needs to be ignored.