Storing boost.shared_ptr in a QVariant

[negritot]

Hello all. I want to store smart pointers in QVariants for purposes of working with Qt's model/view system. However, it appears that QVariant.operator== doesn't work when the type is a smart pointer. For example:

#include <boost/shared_ptr.hpp>
Q_DECLARE_METATYPE(boost::shared_ptr<int>);
Q_DECLARE_METATYPE(int*);
 
void testQVariant()
{
    int* rawInt = new int(5);
    QVariant rawVariant = QVariant::fromValue(rawInt);
    QVariant rawVariant2 = QVariant::fromValue(rawInt);
    bool equal = rawVariant2 == rawVariant;
 
    boost::shared_ptr<int> smartInt(new int(5));
    QVariant smartVariant = QVariant::fromValue(smartInt);
    QVariant smartVariant2 = QVariant::fromValue(smartInt);
    equal = smartVariant2 == smartVariant;
}

#include <boost/shared_ptr.hpp>
Q_DECLARE_METATYPE(boost::shared_ptr<int>);
Q_DECLARE_METATYPE(int*);

void testQVariant()
{
    int* rawInt = new int(5);
    QVariant rawVariant = QVariant::fromValue(rawInt);
    QVariant rawVariant2 = QVariant::fromValue(rawInt);
    bool equal = rawVariant2 == rawVariant;

    boost::shared_ptr<int> smartInt(new int(5));
    QVariant smartVariant = QVariant::fromValue(smartInt);
    QVariant smartVariant2 = QVariant::fromValue(smartInt);
    equal = smartVariant2 == smartVariant;
}

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The QVariants are equal when using raw pointers, but not when using smart pointers (boost::shared_ptr in this case, but I see the same behavior with another smart pointer type, as well).

The upshot is that I can store these in a model (as Qt::UserRole data), but I'm unable to ask the model to find them (match() always returns an index of -1). Any ideas?