This allows argument and return position impl Trait in the signature of a const fn. It also allows impl Trait in other const-contexts, although this is only possible with additional feature gates (see #63065).
Formerly, this was gated under #![feature(const_fn)].
This allows argument and return position
impl Traitin the signature of aconst fn. It also allowsimpl Traitin other const-contexts, although this is only possible with additional feature gates (see #63065).Formerly, this was gated under
#![feature(const_fn)].