std::ifstream

while(!stream.eof()) {
    getline(stream, str); lines.push_back(str);
}
while(stream.good()) {
    stream >> n; numbers.push_back(n);
}

while(getline(stream, str)) {
    lines.push_back(str);
}
while(stream >> n) {
    numbers.push_back(n);
}