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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /library/core/tests/lib.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'library/core/tests/lib.rs')
-rw-r--r-- | library/core/tests/lib.rs | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/library/core/tests/lib.rs b/library/core/tests/lib.rs index 99d4a40c4..42a26ae16 100644 --- a/library/core/tests/lib.rs +++ b/library/core/tests/lib.rs @@ -48,7 +48,6 @@ #![feature(is_sorted)] #![feature(layout_for_ptr)] #![feature(pattern)] -#![feature(pin_macro)] #![feature(sort_internals)] #![feature(slice_take)] #![feature(slice_from_ptr_range)] @@ -155,3 +154,16 @@ mod time; mod tuple; mod unicode; mod waker; + +/// Copied from `std::test_helpers::test_rng`, see that function for rationale. +#[track_caller] +#[allow(dead_code)] // Not used in all configurations. +pub(crate) fn test_rng() -> rand_xorshift::XorShiftRng { + use core::hash::{BuildHasher, Hash, Hasher}; + let mut hasher = std::collections::hash_map::RandomState::new().build_hasher(); + core::panic::Location::caller().hash(&mut hasher); + let hc64 = hasher.finish(); + let seed_vec = hc64.to_le_bytes().into_iter().chain(0u8..8).collect::<Vec<u8>>(); + let seed: [u8; 16] = seed_vec.as_slice().try_into().unwrap(); + rand::SeedableRng::from_seed(seed) +} |