OK, I'll happily admit to a lack of deep knowledge here, but returning a struct of <success, value> doesn't strike me as less expensive than doing two function

OK, I'll happily admit to a lack of deep knowledge here, but returning a struct of <success, value> doesn't strike me as less expensive than doing two function calls to get the same data. I'm more inclined to suspect they didn't do it that way because C#1 didn't have generics. I'll happily admit Rust's more efficient, though.