The pointer primitive has
unsafe fn as_ref<'a>(self) -> Option<&'a T>;
but the converse doesn’t seem to exist
fn from_ref(Option<&T>) -> *const T;
but I think it should. 
Not sure what module it’d go in, though - std::ptr?
Is this even where feature requests go?
There’s some previous discussion in this rfc issue
At least for now I suggest you write an extension trait for Option and put your method in there. That way you don’t need to care about stdlib, and you still get nice method syntax.
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