Return the address providing modifiable access to the BloombergLP::bslma::SharedPtrRep object held by this weak pointer, or 0 if this weak pointer is in the empty state.
BloombergLP::bslma::SharedPtrRep
Declared in <bslstl_sharedptr.h>
<bslstl_sharedptr.h>
BloombergLP::bslma::SharedPtrRep* rep() const noexcept;