Rust DoctorClippy · Correctness
Vec length set over uninitialized memory
clippy::uninit_vec
Fill the vector with real values, for instance vec![0; n] or resize, instead of set_len over uninitialized memory.
- Category
- Correctness
- Default level
- warn
- Tier
- P1
- Producer
- Clippy
- Diff scope
- line
Not a defect when
The element type is MaybeUninit<T>, for which a vector of uninitialized elements is valid until each one is written.
What it reads
Clippy, with the compiler behind it. The only pass that compiles.
Tier
Serious: worth interrupting other work for.
The tier bounds how severe a rule may be; its category bounds the tier.Diff scope
The changed line itself.
What--scope contextual looks at to decide whether a change caused the finding.Change it
Turn it off, or make it blocking, without touching the code it flags:
rust-doctor --rule clippy::uninit_vec=off .
rust-doctor --rule clippy::uninit_vec=error .