Closed
Description
std::num::NonZeroUsize
does not implement the trait std::convert::TryFrom<usize>
, and the same goes for all the other NonZero
types - they don't implement TryFrom
conversions from their inner type. This seems to be exactly the sort of situation that TryFrom
was created for, so they probably should.
The NonZeroUsize::new()
method already does something similar by returning None
if the value is zero, but having TryFrom
would be nice for consistency and for generic code.