Problem when using QtConcurrent::run with members functions.

In Qt reference documentation,there was a topic about QtConcurrent::run 's Additional API Features
I've tried to use QtConcurrent::run with members functions,
however,when i compile the example below,i get the compiler error.It seems that there's no matching function for call QtConcurrent::run().

// call 'QStringList QString::split(const QString &sep, SplitBehavior behavior, Qt::CaseSensitivity cs) const' in a separate thread
QString string ="win7,linux";
QFuture<QStringList> future = QtConcurrent::run(string, &QString::split, QString(", "), QString::KeepEmptyParts, Qt::CaseSensitive);
QStringList result = future.result();

Please give me some suggestions,

Thanks in advance.