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Merged
rust-bors merged 2 commits into from
Jun 1, 2026
Merged

Help people looking for random bytes find DefaultRandomSource.fill_bytes #157221

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9c25035
Mention how to fill a buffer with random bytes
joshtriplett May 31, 2026
f65c565
Add doc aliases for `DefaultRandomSource`, for people looking for ran…
joshtriplett May 31, 2026
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3 changes: 3 additions & 0 deletions library/std/src/random.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,8 @@ use crate::sys::random as sys;
/// security is not a concern, consider using an alternative random number
/// generator (potentially seeded from this one).
///
/// If you need to fill a buffer with random bytes, use `DefaultRandomSource.fill_bytes(&mut buf)`.
///
/// # Underlying sources
///
/// Platform | Source
Expand Down Expand Up @@ -54,6 +56,7 @@ use crate::sys::random as sys;
///
/// [`getrandom`]: https://www.man7.org/linux/man-pages/man2/getrandom.2.html
/// [`/dev/urandom`]: https://www.man7.org/linux/man-pages/man4/random.4.html
#[doc(alias = "getrandom", alias = "getentropy", alias = "arc4random")]
#[derive(Default, Debug, Clone, Copy)]
#[unstable(feature = "random", issue = "130703")]
pub struct DefaultRandomSource;
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