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Export of internal Abseil changes.

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fa894a667a3bebbe479539c8d5e829beebf36c27 by Abseil Team <absl-team@google.com>:

Import of CCTZ from GitHub.

PiperOrigin-RevId: 216855907

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59e0a42fa9045eb164573b82ce625248bd9999f3 by Jon Cohen <cohenjon@google.com>:

Some edits to the documentation for absl::Hash as I was reading through it.

Itemized changes:
  * implement -> implements for grammar
  * Fix an incomplete sentence
  * specify *any* type T as opposed to *a* type T ? this is just the language I tend to see for these sorts of concepts in math and makes it more clear that we?re talking about a set of all types T satisfying these constraints
  * add arguments to comine() and combine_contiguous() ? this was mostly because for hash_continuous there was a reference to `size` elements without any mention of what `size` was.

PiperOrigin-RevId: 216766923

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c2a744d0f70ec5a079c22502b7a7ca72805a29dc by Shaindel Schwartz <shaindel@google.com>:

Remove unneeded include.

PiperOrigin-RevId: 216703710

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ad22fc4e3d236f7bd354b61e0fa37ea524a7cf5e by Shaindel Schwartz <shaindel@google.com>:

Fix typos.

PiperOrigin-RevId: 216699071
GitOrigin-RevId: fa894a667a3bebbe479539c8d5e829beebf36c27
Change-Id: I35c8d8be66043aad9f17bbb867e69acb770bd1b0
This commit is contained in:
Abseil Team 2018-10-12 06:53:34 -07:00 • committed by CJ Johnson
parent f340f773ed
commit a00bdd176d
8 changed files with 20 additions and 11 deletions
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10
absl/hash/hash.h
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@ -25,8 +25,8 @@
// * `AbslHashValue`, an extension point that allows you to extend types to
// support Abseil hashing without requiring you to define a hashing
// algorithm.
// * `HashState`, a type-erased class which implement the manipulation of the
// hash state (H) itself. containing member functions `combine()` and
// * `HashState`, a type-erased class which implements the manipulation of the
// hash state (H) itself, contains member functions `combine()` and
// `combine_contiguous()`, which you can use to contribute to an existing
// hash state when hashing your types.
//
@ -69,7 +69,7 @@ namespace absl {
// `absl::Hash`
// -----------------------------------------------------------------------------
//
// `absl::Hash<T>` is a convenient general-purpose hash functor for a type `T`
// `absl::Hash<T>` is a convenient general-purpose hash functor for any type `T`
// satisfying any of the following conditions (in order):
//
// * T is an arithmetic or pointer type
@ -142,7 +142,7 @@ namespace absl {
//
// The "hash state" concept contains two member functions for mixing hash state:
//
// * `H::combine()`
// * `H::combine(state, values...)`
//
// Combines an arbitrary number of values into a hash state, returning the
// updated state. Note that the existing hash state is move-only and must be
@ -160,7 +160,7 @@ namespace absl {
// state = H::combine(std::move(state), value2);
// state = H::combine(std::move(state), value3);
//
// * `H::combine_contiguous()`
// * `H::combine_contiguous(state, data, size)`
//
// Combines a contiguous array of `size` elements into a hash state,
// returning the updated state. Note that the existing hash state is