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//! Pure Rust implementation of Ryū, an algorithm to quickly convert floating //! point numbers to decimal strings. //! //! The PLDI'18 paper [*Ryū: fast float-to-string conversion*][paper] by Ulf //! Adams includes a complete correctness proof of the algorithm. The paper is //! available under the creative commons CC-BY-SA license. //! //! This Rust implementation is a line-by-line port of Ulf Adams' implementation //! in C, [https://github.com/ulfjack/ryu][upstream]. The [`ryu::raw`][raw] //! module exposes exactly the API and formatting of the C implementation as //! unsafe pure Rust functions. There is additionally a safe API as demonstrated //! in the example code below. The safe API uses the same underlying Ryū //! algorithm but diverges from the formatting of the C implementation to //! produce more human-readable output, for example `0.3` rather than `3E-1`. //! //! [paper]: https://dl.acm.org/citation.cfm?id=3192369 //! [upstream]: https://github.com/ulfjack/ryu //! [raw]: raw/index.html //! //! # Examples //! //! ```rust //! extern crate ryu; //! //! fn main() { //! let mut buffer = ryu::Buffer::new(); //! let printed = buffer.format(1.234); //! assert_eq!(printed, "1.234"); //! } //! ``` #![no_std] #![doc(html_root_url = "https://docs.rs/ryu/0.2.4")] #![cfg_attr(feature = "no-panic", feature(use_extern_macros))] #![cfg_attr( feature = "cargo-clippy", allow( cast_lossless, cyclomatic_complexity, many_single_char_names, needless_pass_by_value, unreadable_literal, ) )] #[cfg(feature = "no-panic")] extern crate no_panic; mod buffer; mod common; mod d2s; #[cfg(not(feature = "small"))] mod d2s_full_table; #[cfg(feature = "small")] mod d2s_small_table; mod digit_table; mod f2s; #[cfg(not(integer128))] mod mulshift128; mod pretty; pub use buffer::{Buffer, Float}; /// Unsafe functions that exactly mirror the API of the C implementation of Ryū. pub mod raw { pub use d2s::d2s_buffered_n; pub use f2s::f2s_buffered_n; }