Export of internal Abseil changes.

--
dabd5614eec687a27bcba28e1d98e84ce716f281 by Abseil Team <absl-team@google.com>:

Demonstrate that std::bitset is supported by AbslHash, both with a comment and
a test.

PiperOrigin-RevId: 218782040
GitOrigin-RevId: dabd5614eec687a27bcba28e1d98e84ce716f281
Change-Id: I777d5e030ba8c6b8a2a353e29ace87484caa811f
pull/170/head
Abseil Team 6 years ago committed by Ashley Hedberg
parent 94c298e2a0
commit f86f941385
  1. 9
      absl/hash/internal/hash.h

@ -494,6 +494,15 @@ AbslHashValue(H hash_state, const absl::variant<T...>& v) {
}
return H::combine(std::move(hash_state), v.index());
}
// -----------------------------------------------------------------------------
// AbslHashValue for Other Types
// -----------------------------------------------------------------------------
// AbslHashValue for hashing std::bitset is not defined, for the same reason as
// for vector<bool> (see std::vector above): It does not expose the raw bytes,
// and a fallback to std::hash<> is most likely faster.
// -----------------------------------------------------------------------------
// hash_range_or_bytes()

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