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as_ref_mut solution

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mo8it
2024-07-02 01:35:38 +02:00
parent 8ef5d10da2
commit 825637f32c
2 changed files with 62 additions and 5 deletions
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7
exercises/23_conversions/as_ref_mut.rs
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@@ -3,22 +3,21 @@
// https://doc.rust-lang.org/std/convert/trait.AsMut.html, respectively.
// Obtain the number of bytes (not characters) in the given argument.
// TODO: Add the AsRef trait appropriately as a trait bound.
// TODO: Add the `AsRef` trait appropriately as a trait bound.
fn byte_counter<T>(arg: T) -> usize {
arg.as_ref().as_bytes().len()
}
// Obtain the number of characters (not bytes) in the given argument.
// TODO: Add the AsRef trait appropriately as a trait bound.
// TODO: Add the `AsRef` trait appropriately as a trait bound.
fn char_counter<T>(arg: T) -> usize {
arg.as_ref().chars().count()
}
// Squares a number using as_mut().
// Squares a number using `as_mut()`.
// TODO: Add the appropriate trait bound.
fn num_sq<T>(arg: &mut T) {
// TODO: Implement the function body.
???
}
fn main() {