a42e62fa0a
Add internal io::Error::new_const to avoid allocations. This makes it possible to have a io::Error containing a message with zero allocations, and uses that everywhere to avoid the *three* allocations involved in `io::Error::new(kind, "message")`. The function signature isn't perfect, because it needs a reference to the `&str`. So for now, this is just a `pub(crate)` function. Later, we'll be able to use `fn new_const<MSG: &'static str>(kind: ErrorKind)` to make that a bit better. (Then we'll also be able to use some ZST trickery if that would result in more efficient code.) See https://github.com/rust-lang/rust/issues/83352 |
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| .. | ||
| benches | ||
| src | ||
| tests | ||
| build.rs | ||
| Cargo.toml | ||