Clippy · Correctness
Ignored byte count from read or write
clippy::unused_io_amount
Use write_all or read_exact, or handle the byte count write and read return.
- Category
- Correctness
- Default level
- warn
- Tier
- P1
- Producer
- Clippy
- Diff scope
- line
Not a defect when
The reader or writer is documented to always process the whole buffer, such as a Vec<u8> or a Cursor over a Vec, so a partial transfer cannot happen.
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::unused_io_amount=off .
rust-doctor --rule clippy::unused_io_amount=error .