Clippy · Correctness

Bit mask that cannot change the comparison

clippy::ineffective_bit_mask

Drop the mask, which cannot change the comparison's result, or fix the constant it was meant to use.

Category: Correctness
Default level: warn
Tier: P1
Producer: Clippy
Diff scope: line

Not a defect when

The mask is a named flag constant that is irrelevant only in this configuration and is kept so the expression stays correct when the constant changes.

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::ineffective_bit_mask=off .
rust-doctor --rule clippy::ineffective_bit_mask=error .

Set it once in rust-doctor.toml

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