replace-with

library0.1.8rscratesunverified

Temporarily take ownership of a value at a mutable location, and replace it with a new value based on the old one.

# Cargo.toml
[dependencies]
replace_with = "0.1.8"

INSTALL

IMPORT

SIG · REPLACE-WITH

replace-with

utilityrustv0.1.8

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

replace_with

✓ use replace_with::replace_with;

Replace a mutable value with a new value computed from the old one.

use replace_with::replace_with; fn main() { let mut x = 42; replace_with(&mut x, |old| old + 1); assert_eq!(x, 43); }

Debug

Known issues

gotchaPanics if the closure panics, leaving the original value in an undefined state.

fix

Ensure closure does not panic or use std::mem::replace instead.

affects: >=0.1.0

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Version history

0.1.8latest on crates.io

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Dependencies

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