[ranges.syn]/1 defines an exposition only function make-unsigned-like and an exposition-only metafunction make-unsigned-like-t. These two names are hard to distinguish, doubly so with an argument list:

make-unsigned-like(meow) vs. make-unsigned-like-t(woof).

It would help somewhat if make-unsigned-like-t were treated as an exposition-only alias template:

make-unsigned-like(meow) vs. make-unsigned-like-t<woof>

but ideally the names themselves should be more distinct as well. @jwakely suggests renaming make-unsigned-like to as-unsigned-like or to-unsigned-like, which preserves the intended similarity between make-unsigned-like-t and make_unsigned_t.

(As discussed in #3299 (comment)).