Re:Rust 1.55.0
by Twirrim on Thursday September 09, 2021 @12:41PM
(#28471642)
> Faster, more correct float parsing
> The standard library's implementation of float parsing has been updated to use the Eisel-Lemire algorithm, which brings both speed improvements and improved correctness. In the past, certain edge cases failed to parse, and this has now been fixed.
There's some pretty big speed improvements there. 3x-10x in the most normal cases, 1600x on some edge cases, and stdlib is now capable of parsing the floats that it never used to be able to.
> The standard library's implementation of float parsing has been updated to use the Eisel-Lemire algorithm, which brings both speed improvements and improved correctness. In the past, certain edge cases failed to parse, and this has now been fixed.
> You can read more details on the new implementation in the pull request description: https://github.com/rust-lang/rust/pull/86761
There's some pretty big speed improvements there. 3x-10x in the most normal cases, 1600x on some edge cases, and stdlib is now capable of parsing the floats that it never used to be able to.