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c2a01888e1
Some more reading required on the following: - `move_semantics` aka ownership and borrowing. - `enums` especially using with match expressions.
27 lines
693 B
Rust
27 lines
693 B
Rust
// move_semantics4.rs
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// Refactor this code so that instead of passing `vec0` into the `fill_vec` function,
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// the Vector gets created in the function itself and passed back to the main
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// function.
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// Execute `rustlings hint move_semantics4` or use the `hint` watch subcommand for a hint.
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fn main() {
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let mut vec1 = fill_vec();
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println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
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vec1.push(88);
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println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
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}
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// `fill_vec()` no longer takes `vec: Vec<i32>` as argument
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fn fill_vec() -> Vec<i32> {
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let mut vec = Vec::new();
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vec.push(22);
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vec.push(44);
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vec.push(66);
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vec
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}
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