From d85783fd0b1bb32b3d3e04d18367cec8d96c9e9a Mon Sep 17 00:00:00 2001 From: Abseil Team Date: Tue, 5 May 2020 07:54:14 -0700 Subject: Export of internal Abseil changes -- f34cd235a12ad0ee1fea3a1ee5a427272dc2b285 by Abseil Team : Migrates uses of deprecated map types to recommended types. PiperOrigin-RevId: 309945156 -- e3410a47ad32c0775b6911610bc47b22938decad by Matthew Brown : Internal Change PiperOrigin-RevId: 309856021 -- a58cfa25e0bb59e7fa9647ac1aae65eaccff0086 by Greg Falcon : Internal change. PiperOrigin-RevId: 309804612 -- cdc5ec310035fbe25f496bda283fe655d94d7769 by Mark Barolak : Standardize the header comments for friend functions in cord.h PiperOrigin-RevId: 309779073 -- fe61602701be795e54477b0fdbf5ffc1df12a6b7 by Samuel Benzaquen : Implement %f natively for any input. It evaluates the input at runtime and allocates stack space accordingly. This removes a potential fallback into snprintf, improves performance, and removes all memory allocations in this formatting path. PiperOrigin-RevId: 309752501 -- 79e2a24f3f959e8b06ddf1d440bbabbd5f89b5b7 by Greg Falcon : Add a Cord::swap() method. Many other Abseil types already provide this, but it was missing here. We already provided a two-argument free function form of `swap()`, but that API is better suited for generic code. The swap member function is a better API when the types are known. PiperOrigin-RevId: 309751740 -- 85cdf60024f153fb4fcb7fe68ed2b14b9faf119d by Derek Mauro : Cleanup uses of "linker initialized" SpinLocks PiperOrigin-RevId: 309581867 -- 9e5443bfcec4b94056b13c75326576e987ab88fb by Matt Kulukundis : Clarify intended mixing properties of `absl::Hash` PiperOrigin-RevId: 309520174 -- a0630f0827b67f217aaeae68a448fe4c1101e17d by Greg Falcon : Comment out a test in Emscripten to sidestep `long double` issues. PiperOrigin-RevId: 309482953 GitOrigin-RevId: f34cd235a12ad0ee1fea3a1ee5a427272dc2b285 Change-Id: Icce0c9d547117374d596b9d684e4054ddd118669 --- absl/hash/hash.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'absl/hash') diff --git a/absl/hash/hash.h b/absl/hash/hash.h index 3dbeab69..d7386f6c 100644 --- a/absl/hash/hash.h +++ b/absl/hash/hash.h @@ -37,8 +37,11 @@ // types. Hashing of that combined state is separately done by `absl::Hash`. // // One should assume that a hash algorithm is chosen randomly at the start of -// each process. E.g., absl::Hash()(9) in one process and -// absl::Hash()(9) in another process are likely to differ. +// each process. E.g., `absl::Hash{}(9)` in one process and +// `absl::Hash{}(9)` in another process are likely to differ. +// +// `absl::Hash` is intended to strongly mix input bits with a target of passing +// an [Avalanche Test](https://en.wikipedia.org/wiki/Avalanche_effect). // // Example: // -- cgit v1.2.3