diff options
Diffstat (limited to 'solutions')
| -rw-r--r-- | solutions/19_smart_pointers/cow1.rs | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/solutions/19_smart_pointers/cow1.rs b/solutions/19_smart_pointers/cow1.rs index 0a21a91..461143b 100644 --- a/solutions/19_smart_pointers/cow1.rs +++ b/solutions/19_smart_pointers/cow1.rs @@ -45,8 +45,9 @@ mod tests { #[test] fn owned_no_mutation() { // We can also pass `vec` without `&` so `Cow` owns it directly. In this - // case, no mutation occurs and thus also no clone. But the result is - // still owned because it was never borrowed or mutated. + // case, no mutation occurs (all numbers are already absolute) and thus + // also no clone. But the result is still owned because it was never + // borrowed or mutated. let vec = vec![0, 1, 2]; let mut input = Cow::from(vec); abs_all(&mut input); @@ -56,9 +57,9 @@ mod tests { #[test] fn owned_mutation() { - // Of course this is also the case if a mutation does occur. In this - // case, the call to `to_mut()` in the `abs_all` function returns a - // reference to the same data as before. + // Of course this is also the case if a mutation does occur (not all + // numbers are absolute). In this case, the call to `to_mut()` in the + // `abs_all` function returns a reference to the same data as before. let vec = vec![-1, 0, 1]; let mut input = Cow::from(vec); abs_all(&mut input); |