Rustlings questions removed?

[steffahn]

@stonerfish

But I can not seem to find the topic?

This topic?

Rustlings: how to generalize AsMut for Box<T>?

I'm working my way through Rustlings 5.2.1 in conversions/as_mut_ref.rs, so Spoiler Alert! The current version of this exercise asks us to add a trait bound and implement a function that takes a mutable reference to a number and squares the number in-place. Here's the test that runs the function num_sq(): #[test] fn mult_box() { let mut num: Box<u32> = Box::new(3); num_sq(&mut num); assert_eq!(*num, 9); } A simple solution for num_sq() would be this, but i…

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