Export of internal Abseil changes.

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92e1bd6dc9e64163659028b640427d6d8573e41c by Abseil Team <absl-team@google.com>:

Don't enable ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE with MSVC when used with nvcc.

With nvcc on Windows __has_trivial_assign(int) is false; that leads to a failure of the check in is_trivially_copy_assignable. A better solution would probably be to use the std-provided check in this case, but that seems like a more intrusive change.

PiperOrigin-RevId: 236135209

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26cee4a7e647076b4e2f88375b4848d1469e55ed by Derek Mauro <dmauro@google.com>:

Remove hashtablez_force_sampling from the open-source release.
This should not have been released. It is internal-only and not portable.

Fixes https://github.com/abseil/abseil-cpp/issues/268

PiperOrigin-RevId: 235978666

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935a885ec0e108963014f1bb79f00102da8f3871 by CJ Johnson <johnsoncj@google.com>:

Internal change

PiperOrigin-RevId: 235976027

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1c148c89de6064031f1ad9f2eeac0331bd77b7b0 by Tom Manshreck <shreck@google.com>:

Add design note for absl::from_chars to abseil.io

Fixes #165

PiperOrigin-RevId: 235975923
GitOrigin-RevId: 92e1bd6dc9e64163659028b640427d6d8573e41c
Change-Id: I220b0bbb46742070ea8c2a94b06007ecae76fe0f

2 files changed, 0 insertions, 84 deletions

diff --git a/absl/container/internal/hashtablez_force_sampling.cc b/absl/container/internal/hashtablez_force_sampling.cc
deleted file mode 100644
index 868976ec5240..000000000000
--- a/absl/container/internal/hashtablez_force_sampling.cc
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright 2018 The Abseil Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "absl/container/internal/hashtablez_sampler.h"
-
-namespace absl {
-namespace container_internal {
-
-// See hashtablez_sampler.h for details.
-extern "C" const bool kAbslContainerInternalSampleEverything = true;
-
-}  // namespace container_internal
-}  // namespace absl
diff --git a/absl/container/internal/hashtablez_force_sampling_test.cc b/absl/container/internal/hashtablez_force_sampling_test.cc
deleted file mode 100644
index 9ff1046a9ad3..000000000000
--- a/absl/container/internal/hashtablez_force_sampling_test.cc
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright 2018 The Abseil Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <cstddef>
-
-#include "gmock/gmock.h"
-#include "gtest/gtest.h"
-#include "absl/container/internal/hashtablez_sampler.h"
-
-namespace absl {
-namespace container_internal {
-
-class HashtablezInfoHandlePeer {
- public:
-  static bool IsSampled(const HashtablezInfoHandle& h) {
-    return h.info_ != nullptr;
-  }
-};
-
-namespace {
-
-bool samples[3]{true, true, true};
-
-// We do this test in a global object to test that this works even before main.
-struct Global {
-  Global() {
-    // By default it is sampled.
-    samples[0] = HashtablezInfoHandlePeer::IsSampled(Sample());
-
-    // Even with a large parameter, it is sampled.
-    SetHashtablezSampleParameter(100);
-    samples[1] = HashtablezInfoHandlePeer::IsSampled(Sample());
-
-    // Even if we turn it off, it is still sampled.
-    SetHashtablezEnabled(false);
-    samples[2] = HashtablezInfoHandlePeer::IsSampled(Sample());
-  }
-} global;
-
-TEST(kAbslContainerInternalSampleEverything, Works) {
-  EXPECT_THAT(samples, testing::Each(true));
-  EXPECT_TRUE(kAbslContainerInternalSampleEverything);
-  // One more after main()
-  EXPECT_TRUE(HashtablezInfoHandlePeer::IsSampled(Sample()));
-}
-
-}  // namespace
-}  // namespace container_internal
-}  // namespace absl