How to let C++ compiler raise a warning or error when a const is assigned to a const reference?

[Miles Bader]

"Peng Yu" <pengyu.ut@gmail.com> writes:
> I think the compiler should suspect there is something wrong, because
> the buggy code assigns the reference of a temp variable to a const
> reference. It should be that a const reference be assigned to another
> const reference.

It's not "assigning a temp to a const reference" (that's done all the
time, and is perfectly innocent), it's "assigning a reference to a
variable with a certain extent to a reference with a longer-lived
extent."  Does gcc have the information easily available to detect that?

-Miles
-- 
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