Q_ARG with C++ reference types

[RichardNixon]

Hi,

Is it possible to use Q_ARG with reference types? For example:

void foo(QIODevice& obj)
{
     QMetaObject::invokeMethod(this, "fooImpl", Q_ARG(QIODevice&, obj));
}

void foo(QIODevice& obj)
{
     QMetaObject::invokeMethod(this, "fooImpl", Q_ARG(QIODevice&, obj));
}

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This code does not compile because the template type for QArgument is inferred to be QIODevice&, and the QArgument constructor wants a pointer to this type (something like QIODevice&*). Is there a way around this other than simply not using reference types?

[wysota]

Q_ARG serializes arguments so using references there might not be possible.