If the argument type t_TP is pointer to type X, where X is not cv-void, return a reference to X; otherwise return a reference to t_TP. Note that these functions are declared but not defined and are intended to be called only in an unevaluated context.
Declared in <bslmf_invokeresult.h>
template<class t_TP>
static
t_TP&
unpoint(t_TP&);