Custom Deleter for QSharedPointer

[hoRUS]

UPD: It all works as expected, sorry for my mistake. Please, delete or close this topic.

Hi, all!

How to specify custom Deleter for QSharedPointer correctly?

class A
{
public:
    void f() {...}
};
 
...
QSharedPointer<A> pA1(new A, ???);

class A
{
public:
    void f() {...}
};

...
QSharedPointer<A> pA1(new A, ???);

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What shall I write instead of ??? in a code above to make QSharedPointer call method f() of object that is about to be deleted? Or it is not possible at all?
I.e. i want pA1 to call method f() of controlled instance of class A when pA1's reference counter drops to 0. &A::f doesn't seem to work since A::f() is not static and object must be specified.

But why does the code below always work when A is subclass of QObject?

QSharedPointer<A> pA2(new A, &QObject::deleteLater);

QSharedPointer<A> pA2(new A, &QObject::deleteLater);

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Non-static deleteLater() method of newly created class A instance is called as ref. counter of pA2 drops to 0.

Thank you in advance && Sorry for my English

P.S. I use GCC version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5), Qt 4.8.4