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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
This commit is contained in:
Abseil Team 2019-02-28 09:21:10 -08:00 • committed by Derek Mauro
parent b312c3cb53
commit 419f3184f8
6 changed files with 6 additions and 136 deletions
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24
absl/container/internal/hashtablez_force_sampling.cc
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// 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

60
absl/container/internal/hashtablez_force_sampling_test.cc
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// 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