TITLE: taking the address of a temporary

(Newsgroups: comp.lang.c++.moderated, 18 Oct 99)


???:

>>    f(&T());


NARAN: Siemel B. Naran

> You can't take the address of a temporary.  The above is an error.


MEYERS: Scott Meyers <smeyers@aristeia.com>

I suspect this is true only for built-in types.  If T is a user-defined
type, the above isn't taking the address of a temporary, it's an invocatin
of the member function operator& on a temporary, and that's allowed.

I point this out only because of the generalization that many (most?)
restrictions on rvalues fail to apply to user-defined types, because what
look like lvalue-only operations are really member function calls.