[Bug c++/58093] Semi-bogus warning about narrowing conversions and variadic templates

[nmm1 at cam dot ac.uk]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58093

--- Comment #5 from Nick Maclaren <nmm1 at cam dot ac.uk> ---
I did.  Please read what the C++ standard says about conversions.  4.7
[conv.integral] paragraph 2 is a paraphrase of wording that has been in
every C and C++ compiler since C90, and states that all integers (negative
and positive) can be represented in unsigned ones of an equal or greater
rank.  Indeed, this was and is a design requirement in the parts of the
library that use -1 converted to an unsigned integer as a result type.

I can't be bothered to pursue this one further - as I said, one more
confusing diagnostic is neither here nor there.