Strcmp user input and file input not matching

Question

For an assignment I have to delete a line from a text file that has a list of directories. The user inputs the file name and the directory including the file name has to be deleted. For the assignment I have to use char arrays. I am having a problem where strcmp returns -13 when it should return 0, but this only occurs when there is another line after the one that should be deleted. Here the code in question:

void deleteSong()
{
    char userSongName[ENTRY_SZ], objectSongName[ENTRY_SZ];
    cout << "Enter the name of a song you want to delete.\n";
    cin.getline(userSongName, ENTRY_SZ);
    Node* tempNode = musicList.GetFirstNode();
    for (int n = 0; n < musicList.GetListLength(); n++)
    {
        strncpy(objectSongName, static_cast<Song*>(tempNode->data_)->GetSongName(), ENTRY_SZ);
        cout << strcmp(userSongName, objectSongName) << endl;
        if (!strcmp(userSongName, objectSongName))
        {
            ifstream songFileDir;
            ofstream tempFileDir;
            songFileDir.open(Song::songListFile_);
            tempFileDir.open("temp.txt");
            while (songFileDir.getline(userSongName, ENTRY_SZ))
            {
                if (!userSongName[0] == '\0')
                {
                    if (strcmp(strrchr(userSongName, '\\') + 1, objectSongName))
                    {
                        tempFileDir << userSongName << endl;
                    }
                }
            }
            songFileDir.close();
            songFileDir.clear(ios_base::goodbit);
            tempFileDir.close();
            tempFileDir.clear(ios_base::goodbit);
            remove(Song::songListFile_);
            rename("temp.txt", Song::songListFile_);
            musicList.RemoveThisLink(tempNode); //This calls a function that removes the node from the linked list.
            delete tempNode;
            return;
        }
        tempNode = tempNode->next_;
    }
    cout << "Song was not found.\n";
    return;
}

Answer 1

It returns -13

13 is the ascii for Carriage return. It appears the second argument contains an extra CR at the end.

Solution
Trim the string by deleting (or replacing character with '\0') all the trailing whitespace ("ctype.h", isspace) character of the argument string.