Thread: Why would ifstream::getline hang and not return?

I encountered a situation where istream::getline() hangs, and does not return.
Why would this be?

Code:

bool CfileOperations::readLine(char buffer[], streamsize bufferSize) {

    filestreamInObject.getline(buffer, bufferSize);
    if (filestreamInObject.good()) { //no error flags set
        return true;
    }

    else {
        return false;
    }

}

filestreamInObject is an object of ifstream.