tvl-depot/absl/base/config_test.cc
Abseil Team 8d8dcb0ae5 Changes imported from Abseil "staging" branch:
- b76f5d50e1cb55050ef6004d6097dfdf0a806ff5 Fix ABSL_HAVE_THREAD_LOCAL for iOS < 8.0. by Matt Armstrong <marmstrong@google.com>
  - 1dc71788a3f4ef601e03cbea59e36901479cde35 Add missing #include <intrin.h> to use __nop() on MSVC. by Derek Mauro <dmauro@google.com>
  - f63ca6c7e87a7961912995b518b93af41b04bfa1 Fix typo (implict -> implicit) by Abseil Team <absl-team@google.com>
  - 8096006dc52368f166ccd22e25fcee334e142508 Fix a typo. by Abseil Team <absl-team@google.com>
  - c673a4a59790329fab33536caed6733dc03ec2a1 Add missing ":" in TODO. by Abseil Team <absl-team@google.com>
  - 8125d214356501af0f3a8b3bb577eed083f0493f Fix comment nit. by Abseil Team <absl-team@google.com>

GitOrigin-RevId: b76f5d50e1cb55050ef6004d6097dfdf0a806ff5
Change-Id: I0168eb0c92b20ece2fe5ee54573c7720d00fd0b3
2017-09-29 11:50:21 -04:00

60 lines
1.7 KiB
C++

// Copyright 2017 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/base/config.h"
#include <cstdint>
#include "gtest/gtest.h"
#include "absl/synchronization/internal/thread_pool.h"
namespace {
TEST(ConfigTest, Endianness) {
union {
uint32_t value;
uint8_t data[sizeof(uint32_t)];
} number;
number.data[0] = 0x00;
number.data[1] = 0x01;
number.data[2] = 0x02;
number.data[3] = 0x03;
#if defined(ABSL_IS_LITTLE_ENDIAN) && defined(ABSL_IS_BIG_ENDIAN)
#error Both ABSL_IS_LITTLE_ENDIAN and ABSL_IS_BIG_ENDIAN are defined
#elif defined(ABSL_IS_LITTLE_ENDIAN)
EXPECT_EQ(UINT32_C(0x03020100), number.value);
#elif defined(ABSL_IS_BIG_ENDIAN)
EXPECT_EQ(UINT32_C(0x00010203), number.value);
#else
#error Unknown endianness
#endif
}
#if defined(ABSL_HAVE_THREAD_LOCAL)
TEST(ConfigTest, ThreadLocal) {
static thread_local int mine_mine_mine = 16;
EXPECT_EQ(16, mine_mine_mine);
{
absl::synchronization_internal::ThreadPool pool(1);
pool.Schedule([&] {
EXPECT_EQ(16, mine_mine_mine);
mine_mine_mine = 32;
EXPECT_EQ(32, mine_mine_mine);
});
}
EXPECT_EQ(16, mine_mine_mine);
}
#endif
} // namespace