Access value of property of type size_t via getUnsignedIntegerValue() always return 0

[yzhou-bcom]

In class A, we defined a member variable m_prop as follows:
class A {
size_t m_prop;
}
and in constructor of class A,
A::A():ConfigurableBase(xpcf::toUUID())
{
declareProperty("prop", m_prop);
}

Then in class B, we had an object of class A named as a.
When we do a->bindToxpcf::IConfigurable()->getProperty("prop")->getUnsignedIntegerValue(), it always returned 0, whatever the value of "prop" we put in the xml file.

However, when we replace size_t by uint32_t, everything works, we get the expected property value.
class A {
uint32_t m_prop;
}

I think maybe it is related to the implementation below:

xpcf/interfaces/xpcf/properties/IProperty.h

Line 242 in cc94af2

virtual uint32_t getUnsignedIntegerValue (uint32_t itemIndex = 0) const = 0;

It would suggest to log an error message, instead of return 0, when getUnsignedIntegerValue() is called to access the value of a property of type size_t ?

Thanks in advance