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Homework answers / question archive / Rust Programming Q6 Rust 8 Points Q6
Rust Programming
Q6 Rust
8 Points
Q6.1 Ownership
4 Points
Consider the following snippet of Rust code:
let a = String::from("ferris");
let b = String::from("rustacean");
let c = &a;
let d = b;
let e = c;
Which variable currently owns the string "ferris"?
a
b
c
d
e
Which variable currently owns the string "rustacean"?
a
b
c
d
e
Q6.2 Ownership and Borrowing
4 Points
Consider the following snippet of Rust code:
fn main() {
let a = String::from("cmsc330");
let b = &a;
{
let mut c = a;
c.push_str(" rocks!");
println!("{}", c);
}
/* HERE */
}
At the line marked "HERE", which of the following is true?
a owns the string "cmsc330 rocks!"
b owns the string "cmsc330 rocks!"
The string has been dropped
This code does not compile
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