From 2901ec32a919311384d6ad4194e2d927c06831f7 Mon Sep 17 00:00:00 2001
From: Abseil Team <absl-team@google.com>
Date: Thu, 7 Feb 2019 14:13:06 -0800
Subject: Export of internal Abseil changes. --
 5da9755667df37e38ccaf6938c9f408e294110bb by Shaindel Schwartz
 <shaindel@google.com>:

Import of CCTZ from GitHub.

PiperOrigin-RevId: 232942734

--
b6fb275769c66fdd2bd92b119198c59e9a7dd737 by Samuel Benzaquen <sbenza@google.com>:

Fix integral underflow when from-arg width is INT_MIN.

PiperOrigin-RevId: 232888037

--
4135dbba4a26c4642277fc2a7e2a833d593daa1c by Abseil Team <absl-team@google.com>:

Add the insert_return_type alias to raw_hash_set.

PiperOrigin-RevId: 232683892

--
0b120b7d3693800bbb886f6fc607ae54a9338cb1 by Abseil Team <absl-team@google.com>:

Macros to detect and disabled SafeStack
https://clang.llvm.org/docs/SafeStack.html

PiperOrigin-RevId: 232680114

--
a77b3fb533a9e37966d1d6ef5ccd09c73fff2ca1 by Abseil Team <absl-team@google.com>:

Avoid potential red zone clobber

Pushing on the stack on x86-64 may clobber local variables held below
%rsp in the red zone. Avoid this by using lea on x86-64.

PiperOrigin-RevId: 232592478

--
bf326a0eefa92f4e704287563df0c5a5b1873b6d by Eric Fiselier <ericwf@google.com>:

Add additional tests for AbslHashValue.

PiperOrigin-RevId: 232344325

--
816e4f98fd7632c944c779db87b7dac4e138afcf by Eric Fiselier <ericwf@google.com>:

Avoid upcoming GCC 9.0 warnings about base class init.

Currently, in trunk, GCC has a new warning under -Wextra
that diagnoses when a derived class fails to explicitly
initialize the base class in a constructor initializer list.

This patch avoids this warning.

PiperOrigin-RevId: 232327626

--
779c0f44b3c2b7a04d4bdf978641eb8180515bf6 by Eric Fiselier <ericwf@google.com>:

Guard against C++2a char8_t change.

PiperOrigin-RevId: 232326178

--
41e5395b85bbbfb5bf418cc21b04ad4ccb15a284 by Eric Fiselier <ericwf@google.com>:

Avoid Clang Warning

PiperOrigin-RevId: 232138866
GitOrigin-RevId: 5da9755667df37e38ccaf6938c9f408e294110bb
Change-Id: I49ee4f58db177b81b039d7d949f671c97c5a7933
---
 absl/numeric/int128_test.cc | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'absl/numeric')

diff --git a/absl/numeric/int128_test.cc b/absl/numeric/int128_test.cc
index 81c868d..4a6eb45 100644
--- a/absl/numeric/int128_test.cc
+++ b/absl/numeric/int128_test.cc
@@ -440,4 +440,29 @@ TEST(Uint128, NumericLimitsTest) {
   EXPECT_EQ(absl::Uint128Max(), std::numeric_limits<absl::uint128>::max());
 }
 
+TEST(Uint128, Hash) {
+  EXPECT_TRUE(absl::VerifyTypeImplementsAbslHashCorrectly({
+      // Some simple values
+      absl::uint128{0},
+      absl::uint128{1},
+      ~absl::uint128{},
+      // 64 bit limits
+      absl::uint128{std::numeric_limits<int64_t>::max()},
+      absl::uint128{std::numeric_limits<uint64_t>::max()} + 0,
+      absl::uint128{std::numeric_limits<uint64_t>::max()} + 1,
+      absl::uint128{std::numeric_limits<uint64_t>::max()} + 2,
+      // Keeping high same
+      absl::uint128{1} << 62,
+      absl::uint128{1} << 63,
+      // Keeping low same
+      absl::uint128{1} << 64,
+      absl::uint128{1} << 65,
+      // 128 bit limits
+      std::numeric_limits<absl::uint128>::max(),
+      std::numeric_limits<absl::uint128>::max() - 1,
+      std::numeric_limits<absl::uint128>::min() + 1,
+      std::numeric_limits<absl::uint128>::min(),
+  }));
+}
+
 }  // namespace
-- 
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