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-rw-r--r--absl/base/BUILD.bazel4
-rw-r--r--absl/base/CMakeLists.txt1
-rw-r--r--absl/base/internal/thread_annotations.h271
-rw-r--r--absl/base/thread_annotations.h178
-rw-r--r--absl/container/BUILD.bazel1
-rw-r--r--absl/container/CMakeLists.txt1
-rw-r--r--absl/container/inlined_vector.h6
-rw-r--r--absl/container/inlined_vector_benchmark.cc59
-rw-r--r--absl/container/inlined_vector_exception_safety_test.cc87
-rw-r--r--absl/container/internal/hashtablez_sampler_test.cc2
-rw-r--r--absl/container/internal/inlined_vector.h13
-rw-r--r--absl/debugging/symbolize_win32.inc2
-rw-r--r--absl/strings/str_format_test.cc2
-rw-r--r--absl/time/civil_time.h4
-rw-r--r--absl/time/civil_time_test.cc2
-rw-r--r--absl/types/BUILD.bazel2
16 files changed, 484 insertions, 151 deletions
diff --git a/absl/base/BUILD.bazel b/absl/base/BUILD.bazel
index c6f0e4d63860..5b7b295a6f9b 100644
--- a/absl/base/BUILD.bazel
+++ b/absl/base/BUILD.bazel
@@ -69,6 +69,9 @@ cc_library(
 
 cc_library(
     name = "core_headers",
+    srcs = [
+        "internal/thread_annotations.h",
+    ],
     hdrs = [
         "attributes.h",
         "const_init.h",
@@ -385,7 +388,6 @@ cc_test(
     srcs = ["internal/endian_test.cc"],
     copts = ABSL_TEST_COPTS,
     deps = [
-        ":base",
         ":config",
         ":endian",
         "@com_google_googletest//:gtest_main",
diff --git a/absl/base/CMakeLists.txt b/absl/base/CMakeLists.txt
index b9f35bc0bb30..34bfba27d55d 100644
--- a/absl/base/CMakeLists.txt
+++ b/absl/base/CMakeLists.txt
@@ -67,6 +67,7 @@ absl_cc_library(
     "optimization.h"
     "port.h"
     "thread_annotations.h"
+    "internal/thread_annotations.h"
   COPTS
     ${ABSL_DEFAULT_COPTS}
   DEPS
diff --git a/absl/base/internal/thread_annotations.h b/absl/base/internal/thread_annotations.h
new file mode 100644
index 000000000000..4dab6a9c150a
--- /dev/null
+++ b/absl/base/internal/thread_annotations.h
@@ -0,0 +1,271 @@
+// Copyright 2019 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
+//
+//      https://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.
+//
+// -----------------------------------------------------------------------------
+// File: thread_annotations.h
+// -----------------------------------------------------------------------------
+//
+// WARNING: This is a backwards compatible header and it will be removed after
+// the migration to prefixed thread annotations is finished; please include
+// "absl/base/thread_annotations.h".
+//
+// This header file contains macro definitions for thread safety annotations
+// that allow developers to document the locking policies of multi-threaded
+// code. The annotations can also help program analysis tools to identify
+// potential thread safety issues.
+//
+// These annotations are implemented using compiler attributes. Using the macros
+// defined here instead of raw attributes allow for portability and future
+// compatibility.
+//
+// When referring to mutexes in the arguments of the attributes, you should
+// use variable names or more complex expressions (e.g. my_object->mutex_)
+// that evaluate to a concrete mutex object whenever possible. If the mutex
+// you want to refer to is not in scope, you may use a member pointer
+// (e.g. &MyClass::mutex_) to refer to a mutex in some (unknown) object.
+
+#ifndef ABSL_BASE_INTERNAL_THREAD_ANNOTATIONS_H_
+#define ABSL_BASE_INTERNAL_THREAD_ANNOTATIONS_H_
+
+#if defined(__clang__)
+#define THREAD_ANNOTATION_ATTRIBUTE__(x)   __attribute__((x))
+#else
+#define THREAD_ANNOTATION_ATTRIBUTE__(x)   // no-op
+#endif
+
+// GUARDED_BY()
+//
+// Documents if a shared field or global variable needs to be protected by a
+// mutex. GUARDED_BY() allows the user to specify a particular mutex that
+// should be held when accessing the annotated variable.
+//
+// Although this annotation (and PT_GUARDED_BY, below) cannot be applied to
+// local variables, a local variable and its associated mutex can often be
+// combined into a small class or struct, thereby allowing the annotation.
+//
+// Example:
+//
+//   class Foo {
+//     Mutex mu_;
+//     int p1_ GUARDED_BY(mu_);
+//     ...
+//   };
+#define GUARDED_BY(x) THREAD_ANNOTATION_ATTRIBUTE__(guarded_by(x))
+
+// PT_GUARDED_BY()
+//
+// Documents if the memory location pointed to by a pointer should be guarded
+// by a mutex when dereferencing the pointer.
+//
+// Example:
+//   class Foo {
+//     Mutex mu_;
+//     int *p1_ PT_GUARDED_BY(mu_);
+//     ...
+//   };
+//
+// Note that a pointer variable to a shared memory location could itself be a
+// shared variable.
+//
+// Example:
+//
+//   // `q_`, guarded by `mu1_`, points to a shared memory location that is
+//   // guarded by `mu2_`:
+//   int *q_ GUARDED_BY(mu1_) PT_GUARDED_BY(mu2_);
+#define PT_GUARDED_BY(x) THREAD_ANNOTATION_ATTRIBUTE__(pt_guarded_by(x))
+
+// ACQUIRED_AFTER() / ACQUIRED_BEFORE()
+//
+// Documents the acquisition order between locks that can be held
+// simultaneously by a thread. For any two locks that need to be annotated
+// to establish an acquisition order, only one of them needs the annotation.
+// (i.e. You don't have to annotate both locks with both ACQUIRED_AFTER
+// and ACQUIRED_BEFORE.)
+//
+// As with GUARDED_BY, this is only applicable to mutexes that are shared
+// fields or global variables.
+//
+// Example:
+//
+//   Mutex m1_;
+//   Mutex m2_ ACQUIRED_AFTER(m1_);
+#define ACQUIRED_AFTER(...) \
+  THREAD_ANNOTATION_ATTRIBUTE__(acquired_after(__VA_ARGS__))
+
+#define ACQUIRED_BEFORE(...) \
+  THREAD_ANNOTATION_ATTRIBUTE__(acquired_before(__VA_ARGS__))
+
+// EXCLUSIVE_LOCKS_REQUIRED() / SHARED_LOCKS_REQUIRED()
+//
+// Documents a function that expects a mutex to be held prior to entry.
+// The mutex is expected to be held both on entry to, and exit from, the
+// function.
+//
+// An exclusive lock allows read-write access to the guarded data member(s), and
+// only one thread can acquire a lock exclusively at any one time. A shared lock
+// allows read-only access, and any number of threads can acquire a shared lock
+// concurrently.
+//
+// Generally, non-const methods should be annotated with
+// EXCLUSIVE_LOCKS_REQUIRED, while const methods should be annotated with
+// SHARED_LOCKS_REQUIRED.
+//
+// Example:
+//
+//   Mutex mu1, mu2;
+//   int a GUARDED_BY(mu1);
+//   int b GUARDED_BY(mu2);
+//
+//   void foo() EXCLUSIVE_LOCKS_REQUIRED(mu1, mu2) { ... }
+//   void bar() const SHARED_LOCKS_REQUIRED(mu1, mu2) { ... }
+#define EXCLUSIVE_LOCKS_REQUIRED(...) \
+  THREAD_ANNOTATION_ATTRIBUTE__(exclusive_locks_required(__VA_ARGS__))
+
+#define SHARED_LOCKS_REQUIRED(...) \
+  THREAD_ANNOTATION_ATTRIBUTE__(shared_locks_required(__VA_ARGS__))
+
+// LOCKS_EXCLUDED()
+//
+// Documents the locks acquired in the body of the function. These locks
+// cannot be held when calling this function (as Abseil's `Mutex` locks are
+// non-reentrant).
+#define LOCKS_EXCLUDED(...) \
+  THREAD_ANNOTATION_ATTRIBUTE__(locks_excluded(__VA_ARGS__))
+
+// LOCK_RETURNED()
+//
+// Documents a function that returns a mutex without acquiring it.  For example,
+// a public getter method that returns a pointer to a private mutex should
+// be annotated with LOCK_RETURNED.
+#define LOCK_RETURNED(x) \
+  THREAD_ANNOTATION_ATTRIBUTE__(lock_returned(x))
+
+// LOCKABLE
+//
+// Documents if a class/type is a lockable type (such as the `Mutex` class).
+#define LOCKABLE \
+  THREAD_ANNOTATION_ATTRIBUTE__(lockable)
+
+// SCOPED_LOCKABLE
+//
+// Documents if a class does RAII locking (such as the `MutexLock` class).
+// The constructor should use `LOCK_FUNCTION()` to specify the mutex that is
+// acquired, and the destructor should use `UNLOCK_FUNCTION()` with no
+// arguments; the analysis will assume that the destructor unlocks whatever the
+// constructor locked.
+#define SCOPED_LOCKABLE \
+  THREAD_ANNOTATION_ATTRIBUTE__(scoped_lockable)
+
+// EXCLUSIVE_LOCK_FUNCTION()
+//
+// Documents functions that acquire a lock in the body of a function, and do
+// not release it.
+#define EXCLUSIVE_LOCK_FUNCTION(...) \
+  THREAD_ANNOTATION_ATTRIBUTE__(exclusive_lock_function(__VA_ARGS__))
+
+// SHARED_LOCK_FUNCTION()
+//
+// Documents functions that acquire a shared (reader) lock in the body of a
+// function, and do not release it.
+#define SHARED_LOCK_FUNCTION(...) \
+  THREAD_ANNOTATION_ATTRIBUTE__(shared_lock_function(__VA_ARGS__))
+
+// UNLOCK_FUNCTION()
+//
+// Documents functions that expect a lock to be held on entry to the function,
+// and release it in the body of the function.
+#define UNLOCK_FUNCTION(...) \
+  THREAD_ANNOTATION_ATTRIBUTE__(unlock_function(__VA_ARGS__))
+
+// EXCLUSIVE_TRYLOCK_FUNCTION() / SHARED_TRYLOCK_FUNCTION()
+//
+// Documents functions that try to acquire a lock, and return success or failure
+// (or a non-boolean value that can be interpreted as a boolean).
+// The first argument should be `true` for functions that return `true` on
+// success, or `false` for functions that return `false` on success. The second
+// argument specifies the mutex that is locked on success. If unspecified, this
+// mutex is assumed to be `this`.
+#define EXCLUSIVE_TRYLOCK_FUNCTION(...) \
+  THREAD_ANNOTATION_ATTRIBUTE__(exclusive_trylock_function(__VA_ARGS__))
+
+#define SHARED_TRYLOCK_FUNCTION(...) \
+  THREAD_ANNOTATION_ATTRIBUTE__(shared_trylock_function(__VA_ARGS__))
+
+// ASSERT_EXCLUSIVE_LOCK() / ASSERT_SHARED_LOCK()
+//
+// Documents functions that dynamically check to see if a lock is held, and fail
+// if it is not held.
+#define ASSERT_EXCLUSIVE_LOCK(...) \
+  THREAD_ANNOTATION_ATTRIBUTE__(assert_exclusive_lock(__VA_ARGS__))
+
+#define ASSERT_SHARED_LOCK(...) \
+  THREAD_ANNOTATION_ATTRIBUTE__(assert_shared_lock(__VA_ARGS__))
+
+// NO_THREAD_SAFETY_ANALYSIS
+//
+// Turns off thread safety checking within the body of a particular function.
+// This annotation is used to mark functions that are known to be correct, but
+// the locking behavior is more complicated than the analyzer can handle.
+#define NO_THREAD_SAFETY_ANALYSIS \
+  THREAD_ANNOTATION_ATTRIBUTE__(no_thread_safety_analysis)
+
+//------------------------------------------------------------------------------
+// Tool-Supplied Annotations
+//------------------------------------------------------------------------------
+
+// TS_UNCHECKED should be placed around lock expressions that are not valid
+// C++ syntax, but which are present for documentation purposes.  These
+// annotations will be ignored by the analysis.
+#define TS_UNCHECKED(x) ""
+
+// TS_FIXME is used to mark lock expressions that are not valid C++ syntax.
+// It is used by automated tools to mark and disable invalid expressions.
+// The annotation should either be fixed, or changed to TS_UNCHECKED.
+#define TS_FIXME(x) ""
+
+// Like NO_THREAD_SAFETY_ANALYSIS, this turns off checking within the body of
+// a particular function.  However, this attribute is used to mark functions
+// that are incorrect and need to be fixed.  It is used by automated tools to
+// avoid breaking the build when the analysis is updated.
+// Code owners are expected to eventually fix the routine.
+#define NO_THREAD_SAFETY_ANALYSIS_FIXME  NO_THREAD_SAFETY_ANALYSIS
+
+// Similar to NO_THREAD_SAFETY_ANALYSIS_FIXME, this macro marks a GUARDED_BY
+// annotation that needs to be fixed, because it is producing thread safety
+// warning.  It disables the GUARDED_BY.
+#define GUARDED_BY_FIXME(x)
+
+// Disables warnings for a single read operation.  This can be used to avoid
+// warnings when it is known that the read is not actually involved in a race,
+// but the compiler cannot confirm that.
+#define TS_UNCHECKED_READ(x) thread_safety_analysis::ts_unchecked_read(x)
+
+
+namespace thread_safety_analysis {
+
+// Takes a reference to a guarded data member, and returns an unguarded
+// reference.
+template <typename T>
+inline const T& ts_unchecked_read(const T& v) NO_THREAD_SAFETY_ANALYSIS {
+  return v;
+}
+
+template <typename T>
+inline T& ts_unchecked_read(T& v) NO_THREAD_SAFETY_ANALYSIS {
+  return v;
+}
+
+}  // namespace thread_safety_analysis
+
+#endif  // ABSL_BASE_INTERNAL_THREAD_ANNOTATIONS_H_
diff --git a/absl/base/thread_annotations.h b/absl/base/thread_annotations.h
index 0b2c306ccc57..f98af9f93d0a 100644
--- a/absl/base/thread_annotations.h
+++ b/absl/base/thread_annotations.h
@@ -34,19 +34,22 @@
 #ifndef ABSL_BASE_THREAD_ANNOTATIONS_H_
 #define ABSL_BASE_THREAD_ANNOTATIONS_H_
 
+// TODO(mbonadei): Remove after the backward compatibility period.
+#include "absl/base/internal/thread_annotations.h"  // IWYU pragma: export
+
 #if defined(__clang__)
-#define THREAD_ANNOTATION_ATTRIBUTE__(x)   __attribute__((x))
+#define ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE(x) __attribute__((x))
 #else
-#define THREAD_ANNOTATION_ATTRIBUTE__(x)   // no-op
+#define ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE(x)  // no-op
 #endif
 
-// GUARDED_BY()
+// ABSL_GUARDED_BY()
 //
 // Documents if a shared field or global variable needs to be protected by a
-// mutex. GUARDED_BY() allows the user to specify a particular mutex that
+// mutex. ABSL_GUARDED_BY() allows the user to specify a particular mutex that
 // should be held when accessing the annotated variable.
 //
-// Although this annotation (and PT_GUARDED_BY, below) cannot be applied to
+// Although this annotation (and ABSL_PT_GUARDED_BY, below) cannot be applied to
 // local variables, a local variable and its associated mutex can often be
 // combined into a small class or struct, thereby allowing the annotation.
 //
@@ -54,12 +57,13 @@
 //
 //   class Foo {
 //     Mutex mu_;
-//     int p1_ GUARDED_BY(mu_);
+//     int p1_ ABSL_GUARDED_BY(mu_);
 //     ...
 //   };
-#define GUARDED_BY(x) THREAD_ANNOTATION_ATTRIBUTE__(guarded_by(x))
+#define ABSL_GUARDED_BY(x) \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE(guarded_by(x))
 
-// PT_GUARDED_BY()
+// ABSL_PT_GUARDED_BY()
 //
 // Documents if the memory location pointed to by a pointer should be guarded
 // by a mutex when dereferencing the pointer.
@@ -67,7 +71,7 @@
 // Example:
 //   class Foo {
 //     Mutex mu_;
-//     int *p1_ PT_GUARDED_BY(mu_);
+//     int *p1_ ABSL_PT_GUARDED_BY(mu_);
 //     ...
 //   };
 //
@@ -78,31 +82,32 @@
 //
 //   // `q_`, guarded by `mu1_`, points to a shared memory location that is
 //   // guarded by `mu2_`:
-//   int *q_ GUARDED_BY(mu1_) PT_GUARDED_BY(mu2_);
-#define PT_GUARDED_BY(x) THREAD_ANNOTATION_ATTRIBUTE__(pt_guarded_by(x))
+//   int *q_ ABSL_GUARDED_BY(mu1_) ABSL_PT_GUARDED_BY(mu2_);
+#define ABSL_PT_GUARDED_BY(x) \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE(pt_guarded_by(x))
 
-// ACQUIRED_AFTER() / ACQUIRED_BEFORE()
+// ABSL_ACQUIRED_AFTER() / ABSL_ACQUIRED_BEFORE()
 //
 // Documents the acquisition order between locks that can be held
 // simultaneously by a thread. For any two locks that need to be annotated
 // to establish an acquisition order, only one of them needs the annotation.
-// (i.e. You don't have to annotate both locks with both ACQUIRED_AFTER
-// and ACQUIRED_BEFORE.)
+// (i.e. You don't have to annotate both locks with both ABSL_ACQUIRED_AFTER
+// and ABSL_ACQUIRED_BEFORE.)
 //
-// As with GUARDED_BY, this is only applicable to mutexes that are shared
+// As with ABSL_GUARDED_BY, this is only applicable to mutexes that are shared
 // fields or global variables.
 //
 // Example:
 //
 //   Mutex m1_;
-//   Mutex m2_ ACQUIRED_AFTER(m1_);
-#define ACQUIRED_AFTER(...) \
-  THREAD_ANNOTATION_ATTRIBUTE__(acquired_after(__VA_ARGS__))
+//   Mutex m2_ ABSL_ACQUIRED_AFTER(m1_);
+#define ABSL_ACQUIRED_AFTER(...) \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE(acquired_after(__VA_ARGS__))
 
-#define ACQUIRED_BEFORE(...) \
-  THREAD_ANNOTATION_ATTRIBUTE__(acquired_before(__VA_ARGS__))
+#define ABSL_ACQUIRED_BEFORE(...) \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE(acquired_before(__VA_ARGS__))
 
-// EXCLUSIVE_LOCKS_REQUIRED() / SHARED_LOCKS_REQUIRED()
+// ABSL_EXCLUSIVE_LOCKS_REQUIRED() / ABSL_SHARED_LOCKS_REQUIRED()
 //
 // Documents a function that expects a mutex to be held prior to entry.
 // The mutex is expected to be held both on entry to, and exit from, the
@@ -114,77 +119,78 @@
 // concurrently.
 //
 // Generally, non-const methods should be annotated with
-// EXCLUSIVE_LOCKS_REQUIRED, while const methods should be annotated with
-// SHARED_LOCKS_REQUIRED.
+// ABSL_EXCLUSIVE_LOCKS_REQUIRED, while const methods should be annotated with
+// ABSL_SHARED_LOCKS_REQUIRED.
 //
 // Example:
 //
 //   Mutex mu1, mu2;
-//   int a GUARDED_BY(mu1);
-//   int b GUARDED_BY(mu2);
+//   int a ABSL_GUARDED_BY(mu1);
+//   int b ABSL_GUARDED_BY(mu2);
 //
-//   void foo() EXCLUSIVE_LOCKS_REQUIRED(mu1, mu2) { ... }
-//   void bar() const SHARED_LOCKS_REQUIRED(mu1, mu2) { ... }
-#define EXCLUSIVE_LOCKS_REQUIRED(...) \
-  THREAD_ANNOTATION_ATTRIBUTE__(exclusive_locks_required(__VA_ARGS__))
+//   void foo() ABSL_EXCLUSIVE_LOCKS_REQUIRED(mu1, mu2) { ... }
+//   void bar() const ABSL_SHARED_LOCKS_REQUIRED(mu1, mu2) { ... }
+#define ABSL_EXCLUSIVE_LOCKS_REQUIRED(...)   \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE( \
+      exclusive_locks_required(__VA_ARGS__))
 
-#define SHARED_LOCKS_REQUIRED(...) \
-  THREAD_ANNOTATION_ATTRIBUTE__(shared_locks_required(__VA_ARGS__))
+#define ABSL_SHARED_LOCKS_REQUIRED(...) \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE(shared_locks_required(__VA_ARGS__))
 
-// LOCKS_EXCLUDED()
+// ABSL_LOCKS_EXCLUDED()
 //
 // Documents the locks acquired in the body of the function. These locks
 // cannot be held when calling this function (as Abseil's `Mutex` locks are
 // non-reentrant).
-#define LOCKS_EXCLUDED(...) \
-  THREAD_ANNOTATION_ATTRIBUTE__(locks_excluded(__VA_ARGS__))
+#define ABSL_LOCKS_EXCLUDED(...) \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE(locks_excluded(__VA_ARGS__))
 
-// LOCK_RETURNED()
+// ABSL_LOCK_RETURNED()
 //
 // Documents a function that returns a mutex without acquiring it.  For example,
 // a public getter method that returns a pointer to a private mutex should
-// be annotated with LOCK_RETURNED.
-#define LOCK_RETURNED(x) \
-  THREAD_ANNOTATION_ATTRIBUTE__(lock_returned(x))
+// be annotated with ABSL_LOCK_RETURNED.
+#define ABSL_LOCK_RETURNED(x) \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE(lock_returned(x))
 
-// LOCKABLE
+// ABSL_LOCKABLE
 //
 // Documents if a class/type is a lockable type (such as the `Mutex` class).
-#define LOCKABLE \
-  THREAD_ANNOTATION_ATTRIBUTE__(lockable)
+#define ABSL_LOCKABLE ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE(lockable)
 
-// SCOPED_LOCKABLE
+// ABSL_SCOPED_LOCKABLE
 //
 // Documents if a class does RAII locking (such as the `MutexLock` class).
 // The constructor should use `LOCK_FUNCTION()` to specify the mutex that is
 // acquired, and the destructor should use `UNLOCK_FUNCTION()` with no
 // arguments; the analysis will assume that the destructor unlocks whatever the
 // constructor locked.
-#define SCOPED_LOCKABLE \
-  THREAD_ANNOTATION_ATTRIBUTE__(scoped_lockable)
+#define ABSL_SCOPED_LOCKABLE \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE(scoped_lockable)
 
-// EXCLUSIVE_LOCK_FUNCTION()
+// ABSL_EXCLUSIVE_LOCK_FUNCTION()
 //
 // Documents functions that acquire a lock in the body of a function, and do
 // not release it.
-#define EXCLUSIVE_LOCK_FUNCTION(...) \
-  THREAD_ANNOTATION_ATTRIBUTE__(exclusive_lock_function(__VA_ARGS__))
+#define ABSL_EXCLUSIVE_LOCK_FUNCTION(...)    \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE( \
+      exclusive_lock_function(__VA_ARGS__))
 
-// SHARED_LOCK_FUNCTION()
+// ABSL_SHARED_LOCK_FUNCTION()
 //
 // Documents functions that acquire a shared (reader) lock in the body of a
 // function, and do not release it.
-#define SHARED_LOCK_FUNCTION(...) \
-  THREAD_ANNOTATION_ATTRIBUTE__(shared_lock_function(__VA_ARGS__))
+#define ABSL_SHARED_LOCK_FUNCTION(...) \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE(shared_lock_function(__VA_ARGS__))
 
-// UNLOCK_FUNCTION()
+// ABSL_UNLOCK_FUNCTION()
 //
 // Documents functions that expect a lock to be held on entry to the function,
 // and release it in the body of the function.
-#define UNLOCK_FUNCTION(...) \
-  THREAD_ANNOTATION_ATTRIBUTE__(unlock_function(__VA_ARGS__))
+#define ABSL_UNLOCK_FUNCTION(...) \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE(unlock_function(__VA_ARGS__))
 
-// EXCLUSIVE_TRYLOCK_FUNCTION() / SHARED_TRYLOCK_FUNCTION()
+// ABSL_EXCLUSIVE_TRYLOCK_FUNCTION() / ABSL_SHARED_TRYLOCK_FUNCTION()
 //
 // Documents functions that try to acquire a lock, and return success or failure
 // (or a non-boolean value that can be interpreted as a boolean).
@@ -192,76 +198,80 @@
 // success, or `false` for functions that return `false` on success. The second
 // argument specifies the mutex that is locked on success. If unspecified, this
 // mutex is assumed to be `this`.
-#define EXCLUSIVE_TRYLOCK_FUNCTION(...) \
-  THREAD_ANNOTATION_ATTRIBUTE__(exclusive_trylock_function(__VA_ARGS__))
+#define ABSL_EXCLUSIVE_TRYLOCK_FUNCTION(...) \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE( \
+      exclusive_trylock_function(__VA_ARGS__))
 
-#define SHARED_TRYLOCK_FUNCTION(...) \
-  THREAD_ANNOTATION_ATTRIBUTE__(shared_trylock_function(__VA_ARGS__))
+#define ABSL_SHARED_TRYLOCK_FUNCTION(...)    \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE( \
+      shared_trylock_function(__VA_ARGS__))
 
-// ASSERT_EXCLUSIVE_LOCK() / ASSERT_SHARED_LOCK()
+// ABSL_ASSERT_EXCLUSIVE_LOCK() / ABSL_ASSERT_SHARED_LOCK()
 //
 // Documents functions that dynamically check to see if a lock is held, and fail
 // if it is not held.
-#define ASSERT_EXCLUSIVE_LOCK(...) \
-  THREAD_ANNOTATION_ATTRIBUTE__(assert_exclusive_lock(__VA_ARGS__))
+#define ABSL_ASSERT_EXCLUSIVE_LOCK(...) \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE(assert_exclusive_lock(__VA_ARGS__))
 
-#define ASSERT_SHARED_LOCK(...) \
-  THREAD_ANNOTATION_ATTRIBUTE__(assert_shared_lock(__VA_ARGS__))
+#define ABSL_ASSERT_SHARED_LOCK(...) \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE(assert_shared_lock(__VA_ARGS__))
 
-// NO_THREAD_SAFETY_ANALYSIS
+// ABSL_NO_THREAD_SAFETY_ANALYSIS
 //
 // Turns off thread safety checking within the body of a particular function.
 // This annotation is used to mark functions that are known to be correct, but
 // the locking behavior is more complicated than the analyzer can handle.
-#define NO_THREAD_SAFETY_ANALYSIS \
-  THREAD_ANNOTATION_ATTRIBUTE__(no_thread_safety_analysis)
+#define ABSL_NO_THREAD_SAFETY_ANALYSIS \
+  ABSL_INTERNAL_THREAD_ANNOTATION_ATTRIBUTE(no_thread_safety_analysis)
 
 //------------------------------------------------------------------------------
 // Tool-Supplied Annotations
 //------------------------------------------------------------------------------
 
-// TS_UNCHECKED should be placed around lock expressions that are not valid
+// ABSL_TS_UNCHECKED should be placed around lock expressions that are not valid
 // C++ syntax, but which are present for documentation purposes.  These
 // annotations will be ignored by the analysis.
-#define TS_UNCHECKED(x) ""
+#define ABSL_TS_UNCHECKED(x) ""
 
-// TS_FIXME is used to mark lock expressions that are not valid C++ syntax.
+// ABSL_TS_FIXME is used to mark lock expressions that are not valid C++ syntax.
 // It is used by automated tools to mark and disable invalid expressions.
-// The annotation should either be fixed, or changed to TS_UNCHECKED.
-#define TS_FIXME(x) ""
+// The annotation should either be fixed, or changed to ABSL_TS_UNCHECKED.
+#define ABSL_TS_FIXME(x) ""
 
-// Like NO_THREAD_SAFETY_ANALYSIS, this turns off checking within the body of
-// a particular function.  However, this attribute is used to mark functions
+// Like ABSL_NO_THREAD_SAFETY_ANALYSIS, this turns off checking within the body
+// of a particular function.  However, this attribute is used to mark functions
 // that are incorrect and need to be fixed.  It is used by automated tools to
 // avoid breaking the build when the analysis is updated.
 // Code owners are expected to eventually fix the routine.
-#define NO_THREAD_SAFETY_ANALYSIS_FIXME  NO_THREAD_SAFETY_ANALYSIS
+#define ABSL_NO_THREAD_SAFETY_ANALYSIS_FIXME ABSL_NO_THREAD_SAFETY_ANALYSIS
 
-// Similar to NO_THREAD_SAFETY_ANALYSIS_FIXME, this macro marks a GUARDED_BY
-// annotation that needs to be fixed, because it is producing thread safety
-// warning.  It disables the GUARDED_BY.
-#define GUARDED_BY_FIXME(x)
+// Similar to ABSL_NO_THREAD_SAFETY_ANALYSIS_FIXME, this macro marks a
+// ABSL_GUARDED_BY annotation that needs to be fixed, because it is producing
+// thread safety warning. It disables the ABSL_GUARDED_BY.
+#define ABSL_GUARDED_BY_FIXME(x)
 
 // Disables warnings for a single read operation.  This can be used to avoid
 // warnings when it is known that the read is not actually involved in a race,
 // but the compiler cannot confirm that.
-#define TS_UNCHECKED_READ(x) thread_safety_analysis::ts_unchecked_read(x)
-
+#define ABSL_TS_UNCHECKED_READ(x) absl::base_internal::ts_unchecked_read(x)
 
-namespace thread_safety_analysis {
+namespace absl {
+namespace base_internal {
 
 // Takes a reference to a guarded data member, and returns an unguarded
 // reference.
+// Do not used this function directly, use ABSL_TS_UNCHECKED_READ instead.
 template <typename T>
-inline const T& ts_unchecked_read(const T& v) NO_THREAD_SAFETY_ANALYSIS {
+inline const T& ts_unchecked_read(const T& v) ABSL_NO_THREAD_SAFETY_ANALYSIS {
   return v;
 }
 
 template <typename T>
-inline T& ts_unchecked_read(T& v) NO_THREAD_SAFETY_ANALYSIS {
+inline T& ts_unchecked_read(T& v) ABSL_NO_THREAD_SAFETY_ANALYSIS {
   return v;
 }
 
-}  // namespace thread_safety_analysis
+}  // namespace base_internal
+}  // namespace absl
 
 #endif  // ABSL_BASE_THREAD_ANNOTATIONS_H_
diff --git a/absl/container/BUILD.bazel b/absl/container/BUILD.bazel
index 99a72482467e..331030acd9a6 100644
--- a/absl/container/BUILD.bazel
+++ b/absl/container/BUILD.bazel
@@ -124,6 +124,7 @@ cc_library(
     linkopts = ABSL_DEFAULT_LINKOPTS,
     deps = [
         ":compressed_tuple",
+        "//absl/memory",
         "//absl/meta:type_traits",
     ],
 )
diff --git a/absl/container/CMakeLists.txt b/absl/container/CMakeLists.txt
index 526e37af3db2..c75b0a2be7f5 100644
--- a/absl/container/CMakeLists.txt
+++ b/absl/container/CMakeLists.txt
@@ -124,6 +124,7 @@ absl_cc_library(
     ${ABSL_DEFAULT_COPTS}
   DEPS
     absl::compressed_tuple
+    absl::memory
     absl::type_traits
   PUBLIC
 )
diff --git a/absl/container/inlined_vector.h b/absl/container/inlined_vector.h
index 564c9535129e..c31c319cc2a7 100644
--- a/absl/container/inlined_vector.h
+++ b/absl/container/inlined_vector.h
@@ -890,7 +890,7 @@ class InlinedVector {
 
   template <typename... Args>
   reference Construct(pointer p, Args&&... args) {
-    std::allocator_traits<allocator_type>::construct(
+    absl::allocator_traits<allocator_type>::construct(
         *storage_.GetAllocPtr(), p, std::forward<Args>(args)...);
     return *p;
   }
@@ -908,8 +908,8 @@ class InlinedVector {
   // Destroy [`from`, `to`) in place.
   void Destroy(pointer from, pointer to) {
     for (pointer cur = from; cur != to; ++cur) {
-      std::allocator_traits<allocator_type>::destroy(*storage_.GetAllocPtr(),
-                                                     cur);
+      absl::allocator_traits<allocator_type>::destroy(*storage_.GetAllocPtr(),
+                                                      cur);
     }
 #if !defined(NDEBUG)
     // Overwrite unused memory with `0xab` so we can catch uninitialized usage.
diff --git a/absl/container/inlined_vector_benchmark.cc b/absl/container/inlined_vector_benchmark.cc
index d906997a8d92..b57fc1de9e3b 100644
--- a/absl/container/inlined_vector_benchmark.cc
+++ b/absl/container/inlined_vector_benchmark.cc
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#include <array>
 #include <string>
 #include <vector>
 
@@ -373,71 +374,75 @@ void BM_StdVectorEmpty(benchmark::State& state) {
 }
 BENCHMARK(BM_StdVectorEmpty);
 
-constexpr size_t kInlineElements = 4;
-constexpr size_t kSmallSize = kInlineElements / 2;
-constexpr size_t kLargeSize = kInlineElements * 2;
+constexpr size_t kInlinedCapacity = 4;
+constexpr size_t kLargeSize = kInlinedCapacity * 2;
+constexpr size_t kSmallSize = kInlinedCapacity / 2;
 constexpr size_t kBatchSize = 100;
 
+template <typename T>
+using InlVec = absl::InlinedVector<T, kInlinedCapacity>;
+
 struct TrivialType {
   size_t val;
 };
 
-using TrivialVec = absl::InlinedVector<TrivialType, kInlineElements>;
-
 class NontrivialType {
  public:
-  ABSL_ATTRIBUTE_NOINLINE NontrivialType() : val_() {}
+  ABSL_ATTRIBUTE_NOINLINE NontrivialType() : val_() {
+    benchmark::DoNotOptimize(*this);
+  }
 
   ABSL_ATTRIBUTE_NOINLINE NontrivialType(const NontrivialType& other)
-      : val_(other.val_) {}
+      : val_(other.val_) {
+    benchmark::DoNotOptimize(*this);
+  }
 
   ABSL_ATTRIBUTE_NOINLINE NontrivialType& operator=(
       const NontrivialType& other) {
     val_ = other.val_;
+    benchmark::DoNotOptimize(*this);
     return *this;
   }
 
-  ABSL_ATTRIBUTE_NOINLINE ~NontrivialType() noexcept {}
+  ABSL_ATTRIBUTE_NOINLINE ~NontrivialType() noexcept {
+    benchmark::DoNotOptimize(*this);
+  }
 
  private:
   size_t val_;
 };
 
-using NontrivialVec = absl::InlinedVector<NontrivialType, kInlineElements>;
-
-template <typename VecT, typename PrepareVec, typename TestVec>
-void BatchedBenchmark(benchmark::State& state, PrepareVec prepare_vec,
-                      TestVec test_vec) {
-  VecT vectors[kBatchSize];
+template <typename T, typename PrepareVecFn, typename TestVecFn>
+void BatchedBenchmark(benchmark::State& state, PrepareVecFn prepare_vec,
+                      TestVecFn test_vec) {
+  std::array<InlVec<T>, kBatchSize> vector_batch{};
 
   while (state.KeepRunningBatch(kBatchSize)) {
     // Prepare batch
     state.PauseTiming();
-    for (auto& vec : vectors) {
+    for (auto& vec : vector_batch) {
       prepare_vec(&vec);
     }
-    benchmark::DoNotOptimize(vectors);
+    benchmark::DoNotOptimize(vector_batch);
     state.ResumeTiming();
 
     // Test batch
-    for (auto& vec : vectors) {
+    for (auto& vec : vector_batch) {
       test_vec(&vec);
     }
   }
 }
 
-template <typename VecT, size_t FromSize>
+template <typename T, size_t FromSize>
 void BM_Clear(benchmark::State& state) {
-  BatchedBenchmark<VecT>(
+  BatchedBenchmark<T>(
       state,
-      /* prepare_vec = */ [](VecT* vec) { vec->resize(FromSize); },
-      /* test_vec = */ [](VecT* vec) { vec->clear(); });
+      /* prepare_vec = */ [](InlVec<T>* vec) { vec->resize(FromSize); },
+      /* test_vec = */ [](InlVec<T>* vec) { vec->clear(); });
 }
-
-BENCHMARK_TEMPLATE(BM_Clear, TrivialVec, kSmallSize);
-BENCHMARK_TEMPLATE(BM_Clear, TrivialVec, kLargeSize);
-
-BENCHMARK_TEMPLATE(BM_Clear, NontrivialVec, kSmallSize);
-BENCHMARK_TEMPLATE(BM_Clear, NontrivialVec, kLargeSize);
+BENCHMARK_TEMPLATE(BM_Clear, TrivialType, kLargeSize);
+BENCHMARK_TEMPLATE(BM_Clear, TrivialType, kSmallSize);
+BENCHMARK_TEMPLATE(BM_Clear, NontrivialType, kLargeSize);
+BENCHMARK_TEMPLATE(BM_Clear, NontrivialType, kSmallSize);
 
 }  // namespace
diff --git a/absl/container/inlined_vector_exception_safety_test.cc b/absl/container/inlined_vector_exception_safety_test.cc
index 0af048b1718a..1aae0b0493ec 100644
--- a/absl/container/inlined_vector_exception_safety_test.cc
+++ b/absl/container/inlined_vector_exception_safety_test.cc
@@ -20,36 +20,85 @@
 
 namespace {
 
-constexpr size_t kInlined = 4;
-constexpr size_t kSmallSize = kInlined / 2;
-constexpr size_t kLargeSize = kInlined * 2;
+constexpr size_t kInlinedCapacity = 4;
+constexpr size_t kLargeSize = kInlinedCapacity * 2;
+constexpr size_t kSmallSize = kInlinedCapacity / 2;
 
 using Thrower = testing::ThrowingValue<>;
-using ThrowerAlloc = testing::ThrowingAllocator<Thrower>;
+using MovableThrower = testing::ThrowingValue<testing::TypeSpec::kNoThrowMove>;
+using ThrowAlloc = testing::ThrowingAllocator<Thrower>;
 
-template <typename Allocator = std::allocator<Thrower>>
-using InlVec = absl::InlinedVector<Thrower, kInlined, Allocator>;
+using ThrowerVec = absl::InlinedVector<Thrower, kInlinedCapacity>;
+using MovableThrowerVec = absl::InlinedVector<MovableThrower, kInlinedCapacity>;
 
-TEST(InlinedVector, DefaultConstructor) {
-  testing::TestThrowingCtor<InlVec<>>();
+using ThrowAllocThrowerVec =
+    absl::InlinedVector<Thrower, kInlinedCapacity, ThrowAlloc>;
+using ThrowAllocMovableThrowerVec =
+    absl::InlinedVector<MovableThrower, kInlinedCapacity, ThrowAlloc>;
 
-  testing::TestThrowingCtor<InlVec<ThrowerAlloc>>();
+template <typename TheVecT, size_t... TheSizes>
+class TestParams {
+ public:
+  using VecT = TheVecT;
+  constexpr static size_t GetSizeAt(size_t i) { return kSizes[1 + i]; }
+
+ private:
+  constexpr static size_t kSizes[1 + sizeof...(TheSizes)] = {1, TheSizes...};
+};
+
+using NoSizeTestParams =
+    ::testing::Types<TestParams<ThrowerVec>, TestParams<MovableThrowerVec>,
+                     TestParams<ThrowAllocThrowerVec>,
+                     TestParams<ThrowAllocMovableThrowerVec>>;
+
+using OneSizeTestParams =
+    ::testing::Types<TestParams<ThrowerVec, kLargeSize>,
+                     TestParams<ThrowerVec, kSmallSize>,
+                     TestParams<MovableThrowerVec, kLargeSize>,
+                     TestParams<MovableThrowerVec, kSmallSize>,
+                     TestParams<ThrowAllocThrowerVec, kLargeSize>,
+                     TestParams<ThrowAllocThrowerVec, kSmallSize>,
+                     TestParams<ThrowAllocMovableThrowerVec, kLargeSize>,
+                     TestParams<ThrowAllocMovableThrowerVec, kSmallSize>>;
+
+template <typename>
+struct NoSizeTest : ::testing::Test {};
+TYPED_TEST_SUITE(NoSizeTest, NoSizeTestParams);
+
+template <typename>
+struct OneSizeTest : ::testing::Test {};
+TYPED_TEST_SUITE(OneSizeTest, OneSizeTestParams);
+
+// Function that always returns false is correct, but refactoring is required
+// for clarity. It's needed to express that, as a contract, certain operations
+// should not throw at all. Execution of this function means an exception was
+// thrown and thus the test should fail.
+// TODO(johnsoncj): Add `testing::NoThrowGuarantee` to the framework
+template <typename VecT>
+bool NoThrowGuarantee(VecT* /* vec */) {
+  return false;
 }
 
-TEST(InlinedVector, AllocConstructor) {
-  auto alloc = std::allocator<Thrower>();
-  testing::TestThrowingCtor<InlVec<>>(alloc);
+TYPED_TEST(NoSizeTest, DefaultConstructor) {
+  using VecT = typename TypeParam::VecT;
+  using allocator_type = typename VecT::allocator_type;
 
-  auto throw_alloc = ThrowerAlloc();
-  testing::TestThrowingCtor<InlVec<ThrowerAlloc>>(throw_alloc);
+  testing::TestThrowingCtor<VecT>();
+
+  testing::TestThrowingCtor<VecT>(allocator_type{});
 }
 
-TEST(InlinedVector, Clear) {
-  auto small_vec = InlVec<>(kSmallSize);
-  EXPECT_TRUE(testing::TestNothrowOp([&]() { small_vec.clear(); }));
+TYPED_TEST(OneSizeTest, Clear) {
+  using VecT = typename TypeParam::VecT;
+  constexpr static auto size = TypeParam::GetSizeAt(0);
+
+  auto tester = testing::MakeExceptionSafetyTester()
+                    .WithInitialValue(VecT(size))
+                    .WithContracts(NoThrowGuarantee<VecT>);
 
-  auto large_vec = InlVec<>(kLargeSize);
-  EXPECT_TRUE(testing::TestNothrowOp([&]() { large_vec.clear(); }));
+  EXPECT_TRUE(tester.Test([](VecT* vec) {
+    vec->clear();  //
+  }));
 }
 
 }  // namespace
diff --git a/absl/container/internal/hashtablez_sampler_test.cc b/absl/container/internal/hashtablez_sampler_test.cc
index d2435ed8a6ad..7f9e8dd21ffc 100644
--- a/absl/container/internal/hashtablez_sampler_test.cc
+++ b/absl/container/internal/hashtablez_sampler_test.cc
@@ -199,7 +199,7 @@ TEST(HashtablezSamplerTest, Sample) {
   SetHashtablezSampleParameter(100);
   int64_t num_sampled = 0;
   int64_t total = 0;
-  double sample_rate;
+  double sample_rate = 0.0;
   for (int i = 0; i < 1000000; ++i) {
     HashtablezInfoHandle h = Sample();
     ++total;
diff --git a/absl/container/internal/inlined_vector.h b/absl/container/internal/inlined_vector.h
index a2b3d24d98e9..79533a41f3d2 100644
--- a/absl/container/internal/inlined_vector.h
+++ b/absl/container/internal/inlined_vector.h
@@ -22,6 +22,7 @@
 #include <utility>
 
 #include "absl/container/internal/compressed_tuple.h"
+#include "absl/memory/memory.h"
 #include "absl/meta/type_traits.h"
 
 namespace absl {
@@ -35,15 +36,7 @@ using IsAtLeastForwardIterator = std::is_convertible<
 template <typename AllocatorType, typename ValueType, typename SizeType>
 void DestroyElements(AllocatorType* alloc_ptr, ValueType* destroy_first,
                      SizeType destroy_size) {
-  using AllocatorTraits = std::allocator_traits<AllocatorType>;
-
-  // Destroys `destroy_size` elements from `destroy_first`.
-  //
-  // Destroys the range
-  //   [`destroy_first`, `destroy_first + destroy_size`).
-  //
-  // NOTE: We assume destructors do not throw and thus make no attempt to roll
-  // back.
+  using AllocatorTraits = absl::allocator_traits<AllocatorType>;
   for (SizeType i = 0; i < destroy_size; ++i) {
     AllocatorTraits::destroy(*alloc_ptr, destroy_first + i);
   }
@@ -75,7 +68,7 @@ class Storage {
   using const_iterator = const_pointer;
   using reverse_iterator = std::reverse_iterator<iterator>;
   using const_reverse_iterator = std::reverse_iterator<const_iterator>;
-  using AllocatorTraits = std::allocator_traits<allocator_type>;
+  using AllocatorTraits = absl::allocator_traits<allocator_type>;
 
   explicit Storage(const allocator_type& alloc)
       : metadata_(alloc, /* empty and inlined */ 0) {}
diff --git a/absl/debugging/symbolize_win32.inc b/absl/debugging/symbolize_win32.inc
index 7ed3bd3a1b06..5a55f29d2966 100644
--- a/absl/debugging/symbolize_win32.inc
+++ b/absl/debugging/symbolize_win32.inc
@@ -23,7 +23,7 @@
 #include <DbgHelp.h>
 #pragma warning(pop)
 
-#pragma comment(lib, "DbgHelp")
+#pragma comment(lib, "dbghelp.lib")
 
 #include <algorithm>
 #include <cstring>
diff --git a/absl/strings/str_format_test.cc b/absl/strings/str_format_test.cc
index 80830b36df86..96c623496592 100644
--- a/absl/strings/str_format_test.cc
+++ b/absl/strings/str_format_test.cc
@@ -271,7 +271,7 @@ TEST_F(FormatEntryPointTest, FPrintFError) {
   EXPECT_EQ(errno, EBADF);
 }
 
-#if __GLIBC__
+#ifdef __GLIBC__
 TEST_F(FormatEntryPointTest, FprintfTooLarge) {
   std::FILE* f = std::fopen("/dev/null", "w");
   int width = 2000000000;
diff --git a/absl/time/civil_time.h b/absl/time/civil_time.h
index 2dfcbd27fef6..6bb7eec74157 100644
--- a/absl/time/civil_time.h
+++ b/absl/time/civil_time.h
@@ -407,9 +407,9 @@ inline Weekday GetWeekday(CivilDay cd) {
 //
 //   absl::CivilDay d = ...
 //   // Gets the following Thursday if d is not already Thursday
-//   absl::CivilDay thurs1 = absl::PrevWeekday(d, absl::Weekday::thursday) + 7;
+//   absl::CivilDay thurs1 = absl::NextWeekday(d - 1, absl::Weekday::thursday);
 //   // Gets the previous Thursday if d is not already Thursday
-//   absl::CivilDay thurs2 = absl::NextWeekday(d, absl::Weekday::thursday) - 7;
+//   absl::CivilDay thurs2 = absl::PrevWeekday(d + 1, absl::Weekday::thursday);
 //
 inline CivilDay NextWeekday(CivilDay cd, Weekday wd) {
   return CivilDay(time_internal::cctz::next_weekday(cd, wd));
diff --git a/absl/time/civil_time_test.cc b/absl/time/civil_time_test.cc
index b8d57135aa13..070f0d573823 100644
--- a/absl/time/civil_time_test.cc
+++ b/absl/time/civil_time_test.cc
@@ -1028,7 +1028,7 @@ TEST(CivilTime, LeapYears) {
 TEST(CivilTime, FirstThursdayInMonth) {
   const absl::CivilDay nov1(2014, 11, 1);
   const absl::CivilDay thursday =
-      absl::PrevWeekday(nov1, absl::Weekday::thursday) + 7;
+      absl::NextWeekday(nov1 - 1, absl::Weekday::thursday);
   EXPECT_EQ("2014-11-06", absl::FormatCivilTime(thursday));
 
   // Bonus: Date of Thanksgiving in the United States
diff --git a/absl/types/BUILD.bazel b/absl/types/BUILD.bazel
index 134f9f227e33..66ecb0440de0 100644
--- a/absl/types/BUILD.bazel
+++ b/absl/types/BUILD.bazel
@@ -18,9 +18,9 @@ load(
     "//absl:copts/configure_copts.bzl",
     "ABSL_DEFAULT_COPTS",
     "ABSL_DEFAULT_LINKOPTS",
-    "ABSL_TEST_COPTS",
     "ABSL_EXCEPTIONS_FLAG",
     "ABSL_EXCEPTIONS_FLAG_LINKOPTS",
+    "ABSL_TEST_COPTS",
 )
 
 package(default_visibility = ["//visibility:public"])
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