creating a fresh screen?

[metulburr]

How do you delete previous outputs and inputs to the screen leaving only either a new output or the screen prompt?

for example

#include <iostream>

using namespace std;

int main()
{
    cout << "Hello world!" << endl;
    cout << "Hello world!" << endl;
    cout << "Hello world!" << endl;
    cout << "Hello world!" << endl;
    cout << "Hello world!" << endl;
    cout << "Hello world!" << endl;
    cout << "Hello world!" << endl;
    cout << "Hello world!" << endl;
    return 0;
}

How would you make these disapear from the screen leaving only the screen prompt?

[DSLq5Di1]

Easiest approach is simply to flood the console with new line characters,

#include <algorithm>
#include <iterator> 

fill_n(ostream_iterator<char>(cout), 100, '\n');

Some alternatives here:-
http://www.cplusplus.com/articles/4z18T05o/