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Exercises to explore immutable borrowing, mutable borrowing, and "aliasing xor mutability".
19 lines
411 B
Rust
19 lines
411 B
Rust
// borrowing2.rs
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//
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// Rust has strong guarantees about immutability. In order for something
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// to be mutated, it must be marked explicitly. Make this compile only
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// by changing the mutabilities of the calls.
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// I AM NOT DONE
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fn main() {
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let hello = String::from("Hello ");
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append_world(&hello);
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assert_eq!(&hello, "Hello world!");
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}
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fn append_world(s: &String) {
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s.push_str("world!");
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}
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