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Diffstat (limited to 'rand/rand_pcg/src/lib.rs')
-rw-r--r-- | rand/rand_pcg/src/lib.rs | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/rand/rand_pcg/src/lib.rs b/rand/rand_pcg/src/lib.rs new file mode 100644 index 0000000..5160e87 --- /dev/null +++ b/rand/rand_pcg/src/lib.rs @@ -0,0 +1,48 @@ +// Copyright 2018 Developers of the Rand project. +// +// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or +// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license +// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +//! The PCG random number generators. +//! +//! This is a native Rust implementation of a small selection of PCG generators. +//! The primary goal of this crate is simple, minimal, well-tested code; in +//! other words it is explicitly not a goal to re-implement all of PCG. +//! +//! This crate provides: +//! +//! - `Pcg32` aka `Lcg64Xsh32`, officially known as `pcg32`, a general +//! purpose RNG. This is a good choice on both 32-bit and 64-bit CPUs +//! (for 32-bit output). +//! - `Pcg64Mcg` aka `Mcg128Xsl64`, officially known as `mcg_xsl_rr_128_64`, +//! a general purpose RNG using 128-bit multiplications. This has poor +//! performance on 32-bit CPUs but is a good choice on 64-bit CPUs for +//! both 32-bit and 64-bit output. (Note: this RNG is only available using +//! Rust 1.26 or later.) +//! +//! Both of these use 16 bytes of state and 128-bit seeds, and are considered +//! value-stable (i.e. any change affecting the output given a fixed seed would +//! be considered a breaking change to the crate). + +#![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk.png", + html_favicon_url = "https://www.rust-lang.org/favicon.ico", + html_root_url = "https://rust-random.github.io/rand/")] + +#![deny(missing_docs)] +#![deny(missing_debug_implementations)] + +#![no_std] + +extern crate rand_core; + +#[cfg(feature="serde1")] extern crate serde; +#[cfg(feature="serde1")] #[macro_use] extern crate serde_derive; + +mod pcg64; +#[cfg(rust_1_26)] mod pcg128; + +pub use self::pcg64::{Pcg32, Lcg64Xsh32}; +#[cfg(rust_1_26)] pub use self::pcg128::{Pcg64Mcg, Mcg128Xsl64}; |