i/o notes

difference between ios::ate and ios::app

ate allow seek to other position, while app not. When using app all writes are preceeded by seeks.

• Using std::copy for STL Container Output and Input

    stringstream iss(string("hello world"));
    vector<string> words;
    // stream -> container
    copy(istream_iterator<string>(iss), istream_iterator<string>(), back_inserter(words));

    // container -> stream
    copy(words.begin(), words.end(), ostream_iterator<string>(cout, " "));