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Diffstat (limited to 'rustlings-macros/info.toml')
| -rw-r--r-- | rustlings-macros/info.toml | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/rustlings-macros/info.toml b/rustlings-macros/info.toml index dc288c0..23eb304 100644 --- a/rustlings-macros/info.toml +++ b/rustlings-macros/info.toml @@ -734,8 +734,13 @@ test = false hint = """ Vectors in Rust make use of generics to create dynamically sized arrays of any type. +If the vector `numbers` has the type `Vec<T>`, then we can only push values of +type `T` to it. By using `into()` before pushing, we ask the compiler to convert +`n1` and `n2` to `T`. But the compiler doesn't know what `T` is yet and needs a +type annotation. -You need to tell the compiler what type we are pushing onto this vector.""" +`u8` and `i8` can both be converted to `i16`, `i32` and `i64`. Choose one for +the generic of the vector.""" [[exercises]] name = "generics2" |