rust-lang / rust-lang/rust-clippy
Unnecessary Vec/VecDeque reserve lint
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A-lint
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Description
What it does
Inspired by:
https://github.com/rust-lang/rust/pull/97922
In a basic case like this Clippy could suggest to remove the call to reserve() because it's unnecessary:
Lint Name
unnecessary_reserve
Category
pedantic
Advantage
No response
Drawbacks
No response
Example
fn test1(v: &mut Vec<u32>, b: &[u32]) {
v.reserve(b.len());
v.extend(b);
}
The same for VecDeque.
Contributor guide
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