Clippy · Correctness

mem::replace with uninitialized or zeroed memory

clippy::mem_replace_with_uninit

Use std::mem::take, or replace with a real value, instead of an uninitialized or zeroed one.

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

Not a defect when

The replaced type is valid for the all-zero bit pattern, such as a plain integer or a repr(C) struct of integers, and mem::zeroed is used deliberately as its value.

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

Set it once in rust-doctor.toml

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