gistfile1.cpp

#include <iostream>
#include <string>
#include <sstream>

using namespace std;

int main()
{
    int intval = 0;
    while(true) {
        cout << "Zadej hodnotu: ";
        string s;
        cin >> s;
        istringstream ss(s);

        ss >> intval;
        if (!ss.fail())
            break;
    }

    cout << "Int hodnota je: " << intval << endl;
    system("pause");
    return 0;
}