while (mystream)
readline(mystream);
void readline(ifstream &inFile)
{
getline...
do other things
cout << inFile.good() << inFile.eof() << endl;
}
d2hpbGUgKG15c3RyZWFtKQogIHJlYWRsaW5lKG15c3RyZWFtKTsKCnZvaWQgcmVhZGxpbmUoaWZzdHJlYW0gJmluRmlsZSkKewogIGdldGxpbmUuLi4KICBkbyBvdGhlciB0aGluZ3MKICBjb3V0IDw8IGluRmlsZS5nb29kKCkgPDwgaW5GaWxlLmVvZigpIDw8IGVuZGw7Cn0=