BloombergLP::bsltf::DegenerateFunctor::exchangeValues

Swap the wrapped FUNCTOR object, by move‐constructing a temporary object from the specified *other, then alternately destroying and in‐place move‐constructing new values for each of *other and *this. Note that this function is deliberately not named swap as some "clever" template libraries may try to call a member‐swap function when they can find it, and ADL‐swap is not available. Also note that this overload is needed only so that the ADL‐enabling free‐function swap can be defined, as the native std library std::swap function will not accept this class (with its deliberate degenerate nature) on AIX, or on Windows with Visual C++ prior to VC2010.