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authorGravatar Abseil Team <absl-team@google.com>2017-09-24 08:20:48 -0700
committerGravatar Derek Mauro <dmauro@google.com>2017-09-25 10:12:29 -0400
commitcf6ab6bb2b800fae859ccc735f398d22a7336a00 (patch)
treeee16a94d16734d11f9e91518038e2712ca025433 /absl
parent53c239d1fc161975dad32c654e1f42c0ec42f547 (diff)
Changes imported from Abseil "staging" branch:
- b527a3e4b36b644ac424e3c525b1cd393f6f6c40 Fix some typos in the usage examples by Jorg Brown <jorg@google.com> - 82be4a9adf3bb0ddafc0d46274969c99afffe870 Fix typo in optional.h comment. by Abseil Team <absl-team@google.com> - d6ee63bf8fc51fba074c23b33cebc28c808d7f07 Remove internal-only identifiers from code. by Daniel Katz <katzdm@google.com> - f9c3ad2f0d73f53b21603638af8b4bed636e79f4 Use easier understandable names for absl::StartsWith and ... by Abseil Team <absl-team@google.com> - 7c16c14fefee89c927b8789d6043c4691bcffc9b Add -Wno-missing-prototypes back to the LLVM copts. by Derek Mauro <dmauro@google.com> - 2f4b7d2e50c7023240242f1e15db60ccd7e8768d IWYU | absl/strings by Juemin Yang <jueminyang@google.com> - a99cbcc1daa34a2d6a2bb26de275e05173cc77e9 IWYU | absl/type by Juemin Yang <jueminyang@google.com> - 12e1146d0fc76c071d7e0ebaabb62f0a984fae66 Use LLVM_FLAGS and LLVM_TEST_FLAGS when --compiler=llvm. by Derek Mauro <dmauro@google.com> - cd6bea616abda558d0bace5bd77455662a233688 IWYU | absl/debugging by Juemin Yang <jueminyang@google.com> - d9a7382e59d46a8581b6b7a31cd5a48bb89326e9 IWYU | absl/synchronization by Juemin Yang <jueminyang@google.com> - 07ec7d6d5a4a666f4183c5d0ed9c342baa7b24bc IWYU | absl/numeric by Juemin Yang <jueminyang@google.com> - 12bfe40051f4270f8707e191af5652f83f2f750c Remove the RoundTrip{Float,Double}ToBuffer routines from ... by Jorg Brown <jorg@google.com> - eeb4fd67c9d97f66cb9475c3c5e51ab132f1c810 Adds conversion functions for converting between absl/tim... by Greg Miller <jgm@google.com> - 59a2108d05d4ea85dc5cc11e49b2cd2335d4295a Change Substitute to use %.6g formatting rather than 15/1... by Jorg Brown <jorg@google.com> - 394becb48e0fcd161642cdaac5120d32567e0ef8 IWYU | absl/meta by Juemin Yang <jueminyang@google.com> - 1e5da6e8da336699b2469dcf6dda025b9b0ec4c9 Rewrite atomic_hook.h to not use std::atomic<T*> under Wi... by Greg Falcon <gfalcon@google.com> GitOrigin-RevId: b527a3e4b36b644ac424e3c525b1cd393f6f6c40 Change-Id: I14e331d91c956ef045ac7927091a9f179716de0c
Diffstat (limited to 'absl')
-rw-r--r--absl/BUILD.bazel14
-rw-r--r--absl/base/BUILD.bazel5
-rw-r--r--absl/base/attributes.h2
-rw-r--r--absl/base/internal/atomic_hook.h104
-rw-r--r--absl/base/internal/low_level_scheduling.h4
-rw-r--r--absl/base/internal/malloc_hook.cc26
-rw-r--r--absl/base/internal/raw_logging.cc8
-rw-r--r--absl/base/internal/scheduling_mode.h4
-rw-r--r--absl/base/internal/spinlock_wait.h4
-rw-r--r--absl/base/internal/sysinfo.cc5
-rw-r--r--absl/base/internal/sysinfo.h3
-rw-r--r--absl/base/internal/sysinfo_test.cc5
-rw-r--r--absl/base/internal/thread_identity.cc11
-rw-r--r--absl/base/macros.h2
-rw-r--r--absl/copts.bzl20
-rw-r--r--absl/debugging/BUILD.bazel1
-rw-r--r--absl/debugging/internal/address_is_readable.cc1
-rw-r--r--absl/debugging/internal/stacktrace_config.h8
-rw-r--r--absl/debugging/internal/stacktrace_libunwind-inl.inc128
-rw-r--r--absl/debugging/leak_check_test.cc3
-rw-r--r--absl/debugging/stacktrace.cc12
-rw-r--r--absl/meta/type_traits.h1
-rw-r--r--absl/meta/type_traits_test.cc2
-rw-r--r--absl/numeric/int128.cc3
-rw-r--r--absl/numeric/int128.h2
-rw-r--r--absl/strings/BUILD.bazel1
-rw-r--r--absl/strings/escaping.cc7
-rw-r--r--absl/strings/escaping_test.cc2
-rw-r--r--absl/strings/internal/char_map_test.cc4
-rw-r--r--absl/strings/internal/memutil_test.cc1
-rw-r--r--absl/strings/internal/ostringstream_test.cc1
-rw-r--r--absl/strings/internal/utf8_test.cc5
-rw-r--r--absl/strings/match.cc6
-rw-r--r--absl/strings/match.h32
-rw-r--r--absl/strings/numbers.cc387
-rw-r--r--absl/strings/numbers.h3
-rw-r--r--absl/strings/numbers_test.cc41
-rw-r--r--absl/strings/str_cat.cc4
-rw-r--r--absl/strings/str_join_test.cc7
-rw-r--r--absl/strings/str_replace_test.cc3
-rw-r--r--absl/strings/str_split.cc3
-rw-r--r--absl/strings/str_split_test.cc7
-rw-r--r--absl/strings/string_view.cc1
-rw-r--r--absl/strings/string_view.h9
-rw-r--r--absl/strings/string_view_test.cc6
-rw-r--r--absl/strings/strip.cc1
-rw-r--r--absl/strings/substitute.h16
-rw-r--r--absl/synchronization/blocking_counter.cc2
-rw-r--r--absl/synchronization/blocking_counter_test.cc3
-rw-r--r--absl/synchronization/internal/create_thread_identity.cc5
-rw-r--r--absl/synchronization/internal/graphcycles_test.cc13
-rw-r--r--absl/synchronization/internal/per_thread_sem_test.cc2
-rw-r--r--absl/synchronization/mutex.h2
-rw-r--r--absl/synchronization/mutex_test.cc6
-rw-r--r--absl/test_dependencies.bzl4
-rw-r--r--absl/time/BUILD.bazel13
-rw-r--r--absl/time/clock.cc2
-rw-r--r--absl/time/duration.cc21
-rw-r--r--absl/time/duration_test.cc202
-rw-r--r--absl/time/format.cc4
-rw-r--r--absl/time/time.cc13
-rw-r--r--absl/time/time.h164
-rw-r--r--absl/time/time_test.cc61
-rw-r--r--absl/types/BUILD.bazel4
-rw-r--r--absl/types/any_test.cc1
-rw-r--r--absl/types/optional.h7
-rw-r--r--absl/types/optional_test.cc2
-rw-r--r--absl/types/span_test.cc4
68 files changed, 629 insertions, 831 deletions
diff --git a/absl/BUILD.bazel b/absl/BUILD.bazel
index 42c107d..92e9059 100644
--- a/absl/BUILD.bazel
+++ b/absl/BUILD.bazel
@@ -25,20 +25,6 @@ config_setting(
},
)
-config_setting(
- name = "hybrid_compiler",
- values = {
- "compiler": "hybrid",
- },
-)
-
-config_setting(
- name = "llvm_warnings",
- values = {
- "define": "ABSL_LLVM_WARNINGS=1",
- },
-)
-
# following configs are based on mapping defined in: https://git.io/v5Ijz
config_setting(
name = "ios",
diff --git a/absl/base/BUILD.bazel b/absl/base/BUILD.bazel
index 2e023ef..4c1b509 100644
--- a/absl/base/BUILD.bazel
+++ b/absl/base/BUILD.bazel
@@ -30,9 +30,6 @@ package(default_visibility = ["//visibility:public"])
licenses(["notice"]) # Apache 2.0
-# Some header files in //base are directly exported for unusual use cases,
-# and the ABSL versions must also be exported for those users.
-
exports_files(["thread_annotations.h"])
cc_library(
@@ -188,7 +185,7 @@ cc_library(
hdrs = ["internal/throw_delegate.h"],
copts = ABSL_DEFAULT_COPTS + ABSL_EXCEPTIONS_FLAG,
features = [
- "-use_header_modules", # b/33207452
+ "-use_header_modules",
],
deps = [
":base",
diff --git a/absl/base/attributes.h b/absl/base/attributes.h
index c2155a4..ddf4458 100644
--- a/absl/base/attributes.h
+++ b/absl/base/attributes.h
@@ -526,7 +526,7 @@
//
// Note that this attribute is redundant if the variable is declared constexpr.
#if ABSL_HAVE_CPP_ATTRIBUTE(clang::require_constant_initialization)
-// NOLINTNEXTLINE(whitespace/braces) (b/36288871)
+// NOLINTNEXTLINE(whitespace/braces)
#define ABSL_CONST_INIT [[clang::require_constant_initialization]]
#else
#define ABSL_CONST_INIT
diff --git a/absl/base/internal/atomic_hook.h b/absl/base/internal/atomic_hook.h
index 1f9a810..47d4013 100644
--- a/absl/base/internal/atomic_hook.h
+++ b/absl/base/internal/atomic_hook.h
@@ -18,28 +18,12 @@
#include <atomic>
#include <cassert>
+#include <cstdint>
#include <utility>
namespace absl {
namespace base_internal {
-// In current versions of MSVC (as of July 2017), a std::atomic<T> where T is a
-// pointer to function cannot be constant-initialized with an address constant
-// expression. That is, the following code does not compile:
-// void NoOp() {}
-// constexpr std::atomic<void(*)()> ptr(NoOp);
-//
-// This is the only compiler we support that seems to have this issue. We
-// conditionalize on MSVC here to use a fallback implementation. But we
-// should revisit this occasionally. If MSVC fixes this compiler bug, we
-// can then change this to be conditionalized on the value on _MSC_FULL_VER
-// instead.
-#ifdef _MSC_FULL_VER
-#define ABSL_HAVE_FUNCTION_ADDRESS_CONSTANT_EXPRESSION 0
-#else
-#define ABSL_HAVE_FUNCTION_ADDRESS_CONSTANT_EXPRESSION 1
-#endif
-
template <typename T>
class AtomicHook;
@@ -55,7 +39,7 @@ class AtomicHook<ReturnType (*)(Args...)> {
public:
using FnPtr = ReturnType (*)(Args...);
- constexpr AtomicHook() : hook_(DummyFunction) {}
+ constexpr AtomicHook() : hook_(kInitialValue) {}
// Stores the provided function pointer as the value for this hook.
//
@@ -64,28 +48,16 @@ class AtomicHook<ReturnType (*)(Args...)> {
// as a memory_order_release operation, and read accesses are implemented as
// memory_order_acquire.
void Store(FnPtr fn) {
- assert(fn);
- FnPtr expected = DummyFunction;
- hook_.compare_exchange_strong(expected, fn, std::memory_order_acq_rel,
- std::memory_order_acquire);
- // If the compare and exchange failed, make sure that's because hook_ was
- // already set to `fn` by an earlier call. Any other state reflects an API
- // violation (calling Store() multiple times with different values).
- //
- // Avoid ABSL_RAW_CHECK, since raw logging depends on AtomicHook.
- assert(expected == DummyFunction || expected == fn);
+ bool success = DoStore(fn);
+ static_cast<void>(success);
+ assert(success);
}
// Invokes the registered callback. If no callback has yet been registered, a
// default-constructed object of the appropriate type is returned instead.
template <typename... CallArgs>
ReturnType operator()(CallArgs&&... args) const {
- FnPtr hook = hook_.load(std::memory_order_acquire);
- if (ABSL_HAVE_FUNCTION_ADDRESS_CONSTANT_EXPRESSION || hook) {
- return hook(std::forward<CallArgs>(args)...);
- } else {
- return ReturnType();
- }
+ return DoLoad()(std::forward<CallArgs>(args)...);
}
// Returns the registered callback, or nullptr if none has been registered.
@@ -98,23 +70,79 @@ class AtomicHook<ReturnType (*)(Args...)> {
// Load()() unless you must conditionalize behavior on whether a hook was
// registered.
FnPtr Load() const {
- FnPtr ptr = hook_.load(std::memory_order_acquire);
+ FnPtr ptr = DoLoad();
return (ptr == DummyFunction) ? nullptr : ptr;
}
private:
-#if ABSL_HAVE_FUNCTION_ADDRESS_CONSTANT_EXPRESSION
static ReturnType DummyFunction(Args...) {
return ReturnType();
}
+
+ // Current versions of MSVC (as of September 2017) have a broken
+ // implementation of std::atomic<T*>: Its constructor attempts to do the
+ // equivalent of a reinterpret_cast in a constexpr context, which is not
+ // allowed.
+ //
+ // This causes an issue when building with LLVM under Windows. To avoid this,
+ // we use a less-efficient, intptr_t-based implementation on Windows.
+
+#ifdef _MSC_FULL_VER
+#define ABSL_HAVE_WORKING_ATOMIC_POINTER 0
#else
- static constexpr FnPtr DummyFunction = nullptr;
+#define ABSL_HAVE_WORKING_ATOMIC_POINTER 1
#endif
+#if ABSL_HAVE_WORKING_ATOMIC_POINTER
+ static constexpr FnPtr kInitialValue = &DummyFunction;
+
+ // Return the stored value, or DummyFunction if no value has been stored.
+ FnPtr DoLoad() const { return hook_.load(std::memory_order_acquire); }
+
+ // Store the given value. Returns false if a different value was already
+ // stored to this object.
+ bool DoStore(FnPtr fn) {
+ assert(fn);
+ FnPtr expected = DummyFunction;
+ hook_.compare_exchange_strong(expected, fn, std::memory_order_acq_rel,
+ std::memory_order_acquire);
+ const bool store_succeeded = (expected == DummyFunction);
+ const bool same_value_already_stored = (expected == fn);
+ return store_succeeded || same_value_already_stored;
+ }
+
std::atomic<FnPtr> hook_;
+#else // !ABSL_HAVE_WORKING_ATOMIC_POINTER
+ // Use a sentinel value unlikely to be the address of an actual function.
+ static constexpr intptr_t kInitialValue = 0;
+
+ static_assert(sizeof(intptr_t) >= sizeof(FnPtr),
+ "intptr_t can't contain a function pointer");
+
+ FnPtr DoLoad() const {
+ const intptr_t value = hook_.load(std::memory_order_acquire);
+ if (value == 0) {
+ return DummyFunction;
+ }
+ return reinterpret_cast<FnPtr>(value);
+ }
+
+ bool DoStore(FnPtr fn) {
+ assert(fn);
+ const auto value = reinterpret_cast<intptr_t>(fn);
+ intptr_t expected = 0;
+ hook_.compare_exchange_strong(expected, value, std::memory_order_acq_rel,
+ std::memory_order_acquire);
+ const bool store_succeeded = (expected == 0);
+ const bool same_value_already_stored = (expected == value);
+ return store_succeeded || same_value_already_stored;
+ }
+
+ std::atomic<intptr_t> hook_;
+#endif
};
-#undef ABSL_HAVE_FUNCTION_ADDRESS_CONSTANT_EXPRESSION
+#undef ABSL_HAVE_WORKING_ATOMIC_POINTER
} // namespace base_internal
} // namespace absl
diff --git a/absl/base/internal/low_level_scheduling.h b/absl/base/internal/low_level_scheduling.h
index a01d1c0..e716f2b 100644
--- a/absl/base/internal/low_level_scheduling.h
+++ b/absl/base/internal/low_level_scheduling.h
@@ -12,8 +12,8 @@
// See the License for the specific language governing permissions and
// limitations under the License.
//
-// Core interfaces and definitions used by by low-level //base interfaces such
-// as SpinLock.
+// Core interfaces and definitions used by by low-level interfaces such as
+// SpinLock.
#ifndef ABSL_BASE_INTERNAL_LOW_LEVEL_SCHEDULING_H_
#define ABSL_BASE_INTERNAL_LOW_LEVEL_SCHEDULING_H_
diff --git a/absl/base/internal/malloc_hook.cc b/absl/base/internal/malloc_hook.cc
index 4f5a0be..7165d4c 100644
--- a/absl/base/internal/malloc_hook.cc
+++ b/absl/base/internal/malloc_hook.cc
@@ -453,16 +453,13 @@ void MallocHook::InvokeSbrkHookSlow(const void* result, ptrdiff_t increment) {
} // namespace base_internal
} // namespace absl
-ABSL_DEFINE_ATTRIBUTE_SECTION_VARS(google_malloc);
-ABSL_DECLARE_ATTRIBUTE_SECTION_VARS(google_malloc);
-// actual functions are in debugallocation.cc or tcmalloc.cc
ABSL_DEFINE_ATTRIBUTE_SECTION_VARS(malloc_hook);
ABSL_DECLARE_ATTRIBUTE_SECTION_VARS(malloc_hook);
// actual functions are in this file, malloc_hook.cc, and low_level_alloc.cc
+ABSL_DEFINE_ATTRIBUTE_SECTION_VARS(google_malloc);
+ABSL_DECLARE_ATTRIBUTE_SECTION_VARS(google_malloc);
ABSL_DEFINE_ATTRIBUTE_SECTION_VARS(blink_malloc);
ABSL_DECLARE_ATTRIBUTE_SECTION_VARS(blink_malloc);
-// actual functions are in third_party/blink_headless/.../{PartitionAlloc,
-// FastMalloc}.cpp.
#define ADDR_IN_ATTRIBUTE_SECTION(addr, name) \
(reinterpret_cast<uintptr_t>(ABSL_ATTRIBUTE_SECTION_START(name)) <= \
@@ -486,13 +483,6 @@ static inline bool InHookCaller(const void* caller) {
static absl::once_flag in_hook_caller_once;
static void InitializeInHookCaller() {
- ABSL_INIT_ATTRIBUTE_SECTION_VARS(google_malloc);
- if (ABSL_ATTRIBUTE_SECTION_START(google_malloc) ==
- ABSL_ATTRIBUTE_SECTION_STOP(google_malloc)) {
- ABSL_RAW_LOG(ERROR,
- "google_malloc section is missing, "
- "thus InHookCaller is broken!");
- }
ABSL_INIT_ATTRIBUTE_SECTION_VARS(malloc_hook);
if (ABSL_ATTRIBUTE_SECTION_START(malloc_hook) ==
ABSL_ATTRIBUTE_SECTION_STOP(malloc_hook)) {
@@ -500,9 +490,14 @@ static void InitializeInHookCaller() {
"malloc_hook section is missing, "
"thus InHookCaller is broken!");
}
+ ABSL_INIT_ATTRIBUTE_SECTION_VARS(google_malloc);
+ if (ABSL_ATTRIBUTE_SECTION_START(google_malloc) ==
+ ABSL_ATTRIBUTE_SECTION_STOP(google_malloc)) {
+ ABSL_RAW_LOG(ERROR,
+ "google_malloc section is missing, "
+ "thus InHookCaller is broken!");
+ }
ABSL_INIT_ATTRIBUTE_SECTION_VARS(blink_malloc);
- // The blink_malloc section is only expected to be present in binaries
- // linking against the blink rendering engine in third_party/blink_headless.
}
// We can improve behavior/compactness of this function
@@ -574,7 +569,8 @@ extern "C" int MallocHook_GetCallerStackTrace(
// still allow users to disable this in special cases that can't be easily
// detected during compilation, via -DABSL_MALLOC_HOOK_MMAP_DISABLE or #define
// ABSL_MALLOC_HOOK_MMAP_DISABLE.
-// TODO(b/62370839): Remove MALLOC_HOOK_MMAP_DISABLE in CROSSTOOL for tsan and
+//
+// TODO(absl-team): Remove MALLOC_HOOK_MMAP_DISABLE in CROSSTOOL for tsan and
// msan config; Replace MALLOC_HOOK_MMAP_DISABLE with
// ABSL_MALLOC_HOOK_MMAP_DISABLE for other special cases.
#if !defined(THREAD_SANITIZER) && !defined(MEMORY_SANITIZER) && \
diff --git a/absl/base/internal/raw_logging.cc b/absl/base/internal/raw_logging.cc
index c089061..1b849ab 100644
--- a/absl/base/internal/raw_logging.cc
+++ b/absl/base/internal/raw_logging.cc
@@ -34,10 +34,10 @@
//
// This preprocessor token is also defined in raw_io.cc. If you need to copy
// this, consider moving both to config.h instead.
-#if defined(__linux__) || defined(__APPLE__) || defined(__Fuchsia__) || \
- defined(__GENCLAVE__)
+#if defined(__linux__) || defined(__APPLE__) || defined(__Fuchsia__)
#include <unistd.h>
+
#define ABSL_HAVE_POSIX_WRITE 1
#define ABSL_LOW_LEVEL_WRITE_SUPPORTED 1
#else
@@ -110,10 +110,6 @@ namespace {
// CAVEAT: vsnprintf called from *DoRawLog below has some (exotic) code paths
// that invoke malloc() and getenv() that might acquire some locks.
-// If this becomes a problem we should reimplement a subset of vsnprintf
-// that does not need locks and malloc.
-// E.g. google3/third_party/clearsilver/core/util/snprintf.c
-// looks like such a reimplementation.
// Helper for RawLog below.
// *DoRawLog writes to *buf of *size and move them past the written portion.
diff --git a/absl/base/internal/scheduling_mode.h b/absl/base/internal/scheduling_mode.h
index b7560f3..1b6497a 100644
--- a/absl/base/internal/scheduling_mode.h
+++ b/absl/base/internal/scheduling_mode.h
@@ -12,8 +12,8 @@
// See the License for the specific language governing permissions and
// limitations under the License.
//
-// Core interfaces and definitions used by by low-level //base interfaces such
-// as SpinLock.
+// Core interfaces and definitions used by by low-level interfaces such as
+// SpinLock.
#ifndef ABSL_BASE_INTERNAL_SCHEDULING_MODE_H_
#define ABSL_BASE_INTERNAL_SCHEDULING_MODE_H_
diff --git a/absl/base/internal/spinlock_wait.h b/absl/base/internal/spinlock_wait.h
index 6734cc9..5f65821 100644
--- a/absl/base/internal/spinlock_wait.h
+++ b/absl/base/internal/spinlock_wait.h
@@ -18,10 +18,6 @@
// Operations to make atomic transitions on a word, and to allow
// waiting for those transitions to become possible.
-// This file is used internally in spinlock.cc and once.cc, and a few other
-// places listing in //base:spinlock_wait_users. If you need to use it outside
-// of //base, please request permission to be added to that list.
-
#include <stdint.h>
#include <atomic>
diff --git a/absl/base/internal/sysinfo.cc b/absl/base/internal/sysinfo.cc
index 6a4c006..9e0140f 100644
--- a/absl/base/internal/sysinfo.cc
+++ b/absl/base/internal/sysinfo.cc
@@ -57,10 +57,7 @@ static int num_cpus = 0;
static double nominal_cpu_frequency = 1.0; // 0.0 might be dangerous.
static int GetNumCPUs() {
-#if defined(__myriad2__) || defined(__GENCLAVE__)
- // TODO(b/28296132): Calling std::thread::hardware_concurrency() induces a
- // link error on myriad2 builds.
- // TODO(b/62709537): Support std::thread::hardware_concurrency() in gEnclalve.
+#if defined(__myriad2__)
return 1;
#else
// Other possibilities:
diff --git a/absl/base/internal/sysinfo.h b/absl/base/internal/sysinfo.h
index f21de14..5bd1c50 100644
--- a/absl/base/internal/sysinfo.h
+++ b/absl/base/internal/sysinfo.h
@@ -40,8 +40,7 @@ namespace base_internal {
// Thread-safe.
double NominalCPUFrequency();
-// Number of logical processors (hyperthreads) in system. See
-// //base/cpuid/cpuid.h for more CPU-related info. Thread-safe.
+// Number of logical processors (hyperthreads) in system. Thread-safe.
int NumCPUs();
// Return the thread id of the current thread, as told by the system.
diff --git a/absl/base/internal/sysinfo_test.cc b/absl/base/internal/sysinfo_test.cc
index 4c7d66b..e0d9aab 100644
--- a/absl/base/internal/sysinfo_test.cc
+++ b/absl/base/internal/sysinfo_test.cc
@@ -41,11 +41,10 @@ TEST(SysinfoTest, NominalCPUFrequency) {
EXPECT_GE(NominalCPUFrequency(), 1000.0)
<< "NominalCPUFrequency() did not return a reasonable value";
#else
- // TODO(b/37919252): Aarch64 cannot read the CPU frequency from sysfs, so we
+ // TODO(absl-team): Aarch64 cannot read the CPU frequency from sysfs, so we
// get back 1.0. Fix once the value is available.
EXPECT_EQ(NominalCPUFrequency(), 1.0)
- << "CPU frequency detection was fixed! Please update unittest and "
- "b/37919252";
+ << "CPU frequency detection was fixed! Please update unittest.";
#endif
}
diff --git a/absl/base/internal/thread_identity.cc b/absl/base/internal/thread_identity.cc
index ee96a58..678e856 100644
--- a/absl/base/internal/thread_identity.cc
+++ b/absl/base/internal/thread_identity.cc
@@ -48,12 +48,10 @@ void AllocateThreadIdentityKey(ThreadIdentityReclaimerFunction reclaimer) {
ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_CPP11
// The actual TLS storage for a thread's currently associated ThreadIdentity.
// This is referenced by inline accessors in the header.
-// "protected" visibility ensures that if multiple copies of //base exist in a
-// process (via dlopen() or similar), references to
-// thread_identity_ptr from each copy of the code will refer to
-// *different* instances of this ptr. See extensive discussion of this choice
-// in cl/90634708
-// TODO(ahh): hard deprecate multiple copies of //base; remove this.
+// "protected" visibility ensures that if multiple instances of Abseil code
+// exist within a process (via dlopen() or similar), references to
+// thread_identity_ptr from each instance of the code will refer to
+// *different* instances of this ptr.
#ifdef __GNUC__
__attribute__((visibility("protected")))
#endif // __GNUC__
@@ -70,7 +68,6 @@ void SetCurrentThreadIdentity(
// NOTE: Not async-safe. But can be open-coded.
absl::call_once(init_thread_identity_key_once, AllocateThreadIdentityKey,
reclaimer);
- // b/18366710:
// We must mask signals around the call to setspecific as with current glibc,
// a concurrent getspecific (needed for GetCurrentThreadIdentityIfPresent())
// may zero our value.
diff --git a/absl/base/macros.h b/absl/base/macros.h
index 259970f..31d1c02 100644
--- a/absl/base/macros.h
+++ b/absl/base/macros.h
@@ -144,7 +144,7 @@ enum LinkerInitialized {
//
// Every usage of a deprecated entity will trigger a warning when compiled with
// clang's `-Wdeprecated-declarations` option. This option is turned off by
-// default, but the warnings will be reported by go/clang-tidy.
+// default, but the warnings will be reported by clang-tidy.
#if defined(__clang__) && __cplusplus >= 201103L && defined(__has_warning)
#define ABSL_DEPRECATED(message) __attribute__((deprecated(message)))
#endif
diff --git a/absl/copts.bzl b/absl/copts.bzl
index 68aafd5..e52ed49 100644
--- a/absl/copts.bzl
+++ b/absl/copts.bzl
@@ -35,6 +35,8 @@ LLVM_FLAGS = [
"-Wno-c++98-compat-pedantic",
"-Wno-comma",
"-Wno-conversion",
+ "-Wno-covered-switch-default",
+ "-Wno-deprecated",
"-Wno-disabled-macro-expansion",
"-Wno-documentation",
"-Wno-documentation-unknown-command",
@@ -46,10 +48,6 @@ LLVM_FLAGS = [
"-Wno-format-nonliteral",
"-Wno-gcc-compat",
"-Wno-global-constructors",
- "-Wno-google3-inheriting-constructor",
- "-Wno-google3-lambda-expression",
- "-Wno-google3-rvalue-reference",
- "-Wno-google3-trailing-return-type",
"-Wno-nested-anon-types",
"-Wno-non-modular-include-in-module",
"-Wno-old-style-cast",
@@ -62,9 +60,11 @@ LLVM_FLAGS = [
"-Wno-switch-enum",
"-Wno-thread-safety-negative",
"-Wno-undef",
+ "-Wno-unknown-warning-option",
+ "-Wno-unreachable-code",
"-Wno-unused-macros",
"-Wno-weak-vtables",
- # flags below are also controled by -Wconversion which is disabled
+ # flags below are also controlled by -Wconversion which is disabled
"-Wbitfield-enum-conversion",
"-Wbool-conversion",
"-Wconstant-conversion",
@@ -111,16 +111,10 @@ MSVC_TEST_FLAGS = [
"/wd4503", # decorated name length exceeded, name was truncated
]
-def _qualify_flags(scope, flags):
- return [scope + x for x in flags]
-
-HYBRID_FLAGS = _qualify_flags("-Xgcc-only=", GCC_FLAGS) + _qualify_flags("-Xclang-only=", LLVM_FLAGS)
-HYBRID_TEST_FLAGS = _qualify_flags("-Xgcc-only=", GCC_TEST_FLAGS) + _qualify_flags("-Xclang-only=", LLVM_TEST_FLAGS)
-
# /Wall with msvc includes unhelpful warnings such as C4711, C4710, ...
ABSL_DEFAULT_COPTS = select({
"//absl:windows": MSVC_FLAGS,
- "//absl:llvm_warnings": LLVM_FLAGS,
+ "//absl:llvm_compiler": LLVM_FLAGS,
"//conditions:default": GCC_FLAGS,
})
@@ -128,7 +122,7 @@ ABSL_DEFAULT_COPTS = select({
# to their (included header) dependencies and fail to build outside absl
ABSL_TEST_COPTS = ABSL_DEFAULT_COPTS + select({
"//absl:windows": MSVC_TEST_FLAGS,
- "//absl:llvm_warnings": LLVM_TEST_FLAGS,
+ "//absl:llvm_compiler": LLVM_TEST_FLAGS,
"//conditions:default": GCC_TEST_FLAGS,
})
diff --git a/absl/debugging/BUILD.bazel b/absl/debugging/BUILD.bazel
index 84acf9f..7a56e49 100644
--- a/absl/debugging/BUILD.bazel
+++ b/absl/debugging/BUILD.bazel
@@ -53,7 +53,6 @@ cc_library(
"internal/stacktrace_arm-inl.inc",
"internal/stacktrace_config.h",
"internal/stacktrace_generic-inl.inc",
- "internal/stacktrace_libunwind-inl.inc",
"internal/stacktrace_powerpc-inl.inc",
"internal/stacktrace_unimplemented-inl.inc",
"internal/stacktrace_win32-inl.inc",
diff --git a/absl/debugging/internal/address_is_readable.cc b/absl/debugging/internal/address_is_readable.cc
index 037ea54..30d2e71 100644
--- a/absl/debugging/internal/address_is_readable.cc
+++ b/absl/debugging/internal/address_is_readable.cc
@@ -33,7 +33,6 @@ bool AddressIsReadable(const void* /* addr */) { return true; }
#include <fcntl.h>
#include <sys/syscall.h>
#include <unistd.h>
-
#include <atomic>
#include <cerrno>
#include <cstdint>
diff --git a/absl/debugging/internal/stacktrace_config.h b/absl/debugging/internal/stacktrace_config.h
index c0df5bb..57f0b0f 100644
--- a/absl/debugging/internal/stacktrace_config.h
+++ b/absl/debugging/internal/stacktrace_config.h
@@ -25,15 +25,13 @@
#if ABSL_STACKTRACE_INL_HEADER
#error ABSL_STACKTRACE_INL_HEADER cannot be directly set
#elif defined(__native_client__) || defined(__APPLE__) || \
- defined(__ANDROID__) || defined(__myriad2__) || defined(__asmjs__) || \
- defined(__Fuchsia__) || defined(__GENCLAVE__) || \
- defined(GOOGLE_UNSUPPORTED_OS_HERCULES)
+ defined(__ANDROID__) || defined(__myriad2__) || defined(asmjs__) || \
+ defined(__Fuchsia__)
#define ABSL_STACKTRACE_INL_HEADER \
"absl/debugging/internal/stacktrace_unimplemented-inl.inc"
// Next, test for Mips and Windows.
-// TODO(marmstrong): http://b/21334018: Mips case, remove the check for
-// ABSL_STACKTRACE_INL_HEADER.
+// TODO(marmstrong): Mips case, remove the check for ABSL_STACKTRACE_INL_HEADER
#elif defined(__mips__) && !defined(ABSL_STACKTRACE_INL_HEADER)
#define ABSL_STACKTRACE_INL_HEADER \
"absl/debugging/internal/stacktrace_unimplemented-inl.inc"
diff --git a/absl/debugging/internal/stacktrace_libunwind-inl.inc b/absl/debugging/internal/stacktrace_libunwind-inl.inc
deleted file mode 100644
index e9c2d26..0000000
--- a/absl/debugging/internal/stacktrace_libunwind-inl.inc
+++ /dev/null
@@ -1,128 +0,0 @@
-// 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.
-
-#ifndef ABSL_DEBUGGING_INTERNAL_STACKTRACE_LIBUNWIND_INL_H_
-#define ABSL_DEBUGGING_INTERNAL_STACKTRACE_LIBUNWIND_INL_H_
-
-// We only need local unwinder.
-#define UNW_LOCAL_ONLY
-
-extern "C" {
-#include "third_party/libunwind/include/libunwind.h"
-}
-#include "absl/debugging/stacktrace.h"
-
-#include "absl/base/dynamic_annotations.h"
-#include "absl/base/internal/raw_logging.h"
-
-// Sometimes, we can try to get a stack trace from within a stack
-// trace, because we don't block signals inside libunwind (which would be too
-// expensive: the two extra system calls per stack trace do matter here).
-// That can cause a self-deadlock (as in http://b/5722312).
-// Protect against such reentrant call by failing to get a stack trace.
-//
-// We use __thread here because the code here is extremely low level -- it is
-// called while collecting stack traces from within malloc and mmap, and thus
-// can not call anything which might call malloc or mmap itself.
-// In particular, using PerThread or STATIC_THREAD_LOCAL_POD
-// here will cause infinite recursion for at least dbg/piii builds with
-// crosstool-v12.
-static __thread int recursive;
-
-template <bool IS_STACK_FRAMES, bool IS_WITH_CONTEXT>
-static int UnwindImpl(void** result, int* sizes, int max_depth, int skip_count,
- const void *, int *min_dropped_frames) {
- if (recursive) {
- return 0;
- }
- ++recursive;
-
- int n = 0;
- if (IS_STACK_FRAMES) {
- void *ip;
- unw_cursor_t cursor;
- unw_context_t uc;
- unw_word_t sp = 0, next_sp = 0;
-
- unw_getcontext(&uc);
- ABSL_RAW_CHECK(unw_init_local(&cursor, &uc) >= 0, "unw_init_local failed");
- skip_count++; // Do not include current frame
-
- while (skip_count--) {
- if (unw_step(&cursor) <= 0) {
- goto out;
- }
- if (unw_get_reg(&cursor, UNW_REG_SP, &next_sp)) {
- goto out;
- }
- }
-
- while (n < max_depth) {
- if (unw_get_reg(&cursor, UNW_REG_IP, (unw_word_t *) &ip) < 0) {
- break;
- }
- sizes[n] = 0;
- result[n++] = ip;
- if (unw_step(&cursor) <= 0) {
- break;
- }
- sp = next_sp;
- if (unw_get_reg(&cursor, UNW_REG_SP, &next_sp) , 0) {
- break;
- }
- sizes[n - 1] = next_sp - sp;
- }
- if (min_dropped_frames != nullptr) {
- // Implementation detail: we clamp the max of frames we are willing to
- // count, so as not to spend too much time in the loop below.
- const int kMaxUnwind = 200;
- int j = 0;
- for (; j < kMaxUnwind; j++) {
- if (unw_step(&cursor) < 0) {
- break;
- }
- }
- *min_dropped_frames = j;
- }
- } else {
- skip_count++; // Do not include current frame.
- void **result_all = reinterpret_cast<void**>(
- alloca(sizeof(void*) * (max_depth + skip_count)));
- int rc = unw_backtrace(result_all, max_depth + skip_count);
-
- if (rc > 0) {
- // Tell MSan that result_all has been initialized. b/34965936.
- ANNOTATE_MEMORY_IS_INITIALIZED(result_all, rc * sizeof(void*));
- }
-
- if (rc > skip_count) {
- memcpy(result, &result_all[skip_count],
- sizeof(void*) * (rc - skip_count));
- n = rc - skip_count;
- } else {
- n = 0;
- }
-
- if (min_dropped_frames != nullptr) {
- // Not implemented.
- *min_dropped_frames = 0;
- }
- }
-
- out:
- --recursive;
- return n;
-}
-
-#endif // ABSL_DEBUGGING_INTERNAL_STACKTRACE_LIBUNWIND_INL_H_
diff --git a/absl/debugging/leak_check_test.cc b/absl/debugging/leak_check_test.cc
index 27ca2d1..febd1ee 100644
--- a/absl/debugging/leak_check_test.cc
+++ b/absl/debugging/leak_check_test.cc
@@ -12,7 +12,8 @@
// See the License for the specific language governing permissions and
// limitations under the License.
-#include <memory>
+#include <string>
+
#include "gtest/gtest.h"
#include "absl/base/internal/raw_logging.h"
#include "absl/debugging/leak_check.h"
diff --git a/absl/debugging/stacktrace.cc b/absl/debugging/stacktrace.cc
index 6c16904..61fee61 100644
--- a/absl/debugging/stacktrace.cc
+++ b/absl/debugging/stacktrace.cc
@@ -38,6 +38,7 @@
#include <atomic>
+#include "absl/base/attributes.h"
#include "absl/base/port.h"
#include "absl/debugging/internal/stacktrace_config.h"
@@ -45,14 +46,13 @@
#include ABSL_STACKTRACE_INL_HEADER
#else
# error Cannot calculate stack trace: will need to write for your environment
-# include "absl/debugging/internal/stacktrace_x86-inl.inc"
-# include "absl/debugging/internal/stacktrace_win32-inl.inc"
-# include "absl/debugging/internal/stacktrace_unimplemented-inl.inc"
-# include "absl/debugging/internal/stacktrace_libunwind-inl.inc"
+# include "absl/debugging/internal/stacktrace_aarch64-inl.inc"
+# include "absl/debugging/internal/stacktrace_arm-inl.inc"
# include "absl/debugging/internal/stacktrace_generic-inl.inc"
# include "absl/debugging/internal/stacktrace_powerpc-inl.inc"
-# include "absl/debugging/internal/stacktrace_arm-inl.inc"
-# include "absl/debugging/internal/stacktrace_aarch64-inl.inc"
+# include "absl/debugging/internal/stacktrace_unimplemented-inl.inc"
+# include "absl/debugging/internal/stacktrace_win32-inl.inc"
+# include "absl/debugging/internal/stacktrace_x86-inl.inc"
#endif
namespace absl {
diff --git a/absl/meta/type_traits.h b/absl/meta/type_traits.h
index 779afd2..ced6626 100644
--- a/absl/meta/type_traits.h
+++ b/absl/meta/type_traits.h
@@ -35,6 +35,7 @@
#ifndef ABSL_META_TYPE_TRAITS_H_
#define ABSL_META_TYPE_TRAITS_H_
+#include <stddef.h>
#include <type_traits>
#include "absl/base/config.h"
diff --git a/absl/meta/type_traits_test.cc b/absl/meta/type_traits_test.cc
index 54dcc8f..15e1c28 100644
--- a/absl/meta/type_traits_test.cc
+++ b/absl/meta/type_traits_test.cc
@@ -17,9 +17,9 @@
#include <cstdint>
#include <string>
#include <type_traits>
+#include <utility>
#include <vector>
-#include "gmock/gmock.h"
#include "gtest/gtest.h"
namespace {
diff --git a/absl/numeric/int128.cc b/absl/numeric/int128.cc
index 184041f..7debf56 100644
--- a/absl/numeric/int128.cc
+++ b/absl/numeric/int128.cc
@@ -14,11 +14,12 @@
#include "absl/numeric/int128.h"
+#include <stddef.h>
#include <cassert>
-#include <cstdlib>
#include <iomanip>
#include <iostream> // NOLINT(readability/streams)
#include <sstream>
+#include <string>
namespace absl {
diff --git a/absl/numeric/int128.h b/absl/numeric/int128.h
index e3ba238..bab5e21 100644
--- a/absl/numeric/int128.h
+++ b/absl/numeric/int128.h
@@ -206,7 +206,7 @@ extern std::ostream& operator<<(std::ostream& o, const uint128& b);
uint64_t Uint128Low64(const uint128& v);
uint64_t Uint128High64(const uint128& v);
-// TODO(b/31950287): Implement signed 128-bit type
+// TODO(absl-team): Implement signed 128-bit type
// --------------------------------------------------------------------------
// Implementation details follow
diff --git a/absl/strings/BUILD.bazel b/absl/strings/BUILD.bazel
index 070721c..da441e2 100644
--- a/absl/strings/BUILD.bazel
+++ b/absl/strings/BUILD.bazel
@@ -162,6 +162,7 @@ cc_test(
deps = [
":strings",
":internal",
+ "//absl/base:core_headers",
] + select(GUNIT_MAIN_DEPS_SELECTOR),
)
diff --git a/absl/strings/escaping.cc b/absl/strings/escaping.cc
index f157605..7d688ac 100644
--- a/absl/strings/escaping.cc
+++ b/absl/strings/escaping.cc
@@ -14,22 +14,21 @@
#include "absl/strings/escaping.h"
+#include <algorithm>
#include <cassert>
#include <cstdint>
-#include <cstdio>
#include <cstring>
+#include <iterator>
#include <limits>
#include <string>
-#include <vector>
#include "absl/base/internal/endian.h"
#include "absl/base/internal/raw_logging.h"
#include "absl/base/internal/unaligned_access.h"
-#include "absl/base/macros.h"
-#include "absl/base/port.h"
#include "absl/strings/internal/char_map.h"
#include "absl/strings/internal/resize_uninitialized.h"
#include "absl/strings/internal/utf8.h"
+#include "absl/strings/str_cat.h"
#include "absl/strings/str_join.h"
#include "absl/strings/string_view.h"
diff --git a/absl/strings/escaping_test.cc b/absl/strings/escaping_test.cc
index d464051..ecac9ca 100644
--- a/absl/strings/escaping_test.cc
+++ b/absl/strings/escaping_test.cc
@@ -17,11 +17,11 @@
#include <array>
#include <cstdio>
#include <cstring>
+#include <memory>
#include <vector>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
-#include "absl/base/macros.h"
#include "absl/container/fixed_array.h"
#include "absl/strings/str_cat.h"
diff --git a/absl/strings/internal/char_map_test.cc b/absl/strings/internal/char_map_test.cc
index 2167be9..c3601e1 100644
--- a/absl/strings/internal/char_map_test.cc
+++ b/absl/strings/internal/char_map_test.cc
@@ -14,9 +14,9 @@
#include "absl/strings/internal/char_map.h"
-#include <cstdio>
-#include <cstdlib>
#include <cctype>
+#include <string>
+#include <vector>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
diff --git a/absl/strings/internal/memutil_test.cc b/absl/strings/internal/memutil_test.cc
index 1ff60f2..09424de 100644
--- a/absl/strings/internal/memutil_test.cc
+++ b/absl/strings/internal/memutil_test.cc
@@ -16,7 +16,6 @@
#include "absl/strings/internal/memutil.h"
-#include <algorithm>
#include <cstdlib>
#include "gtest/gtest.h"
diff --git a/absl/strings/internal/ostringstream_test.cc b/absl/strings/internal/ostringstream_test.cc
index 0047ec8..069a0e1 100644
--- a/absl/strings/internal/ostringstream_test.cc
+++ b/absl/strings/internal/ostringstream_test.cc
@@ -16,7 +16,6 @@
#include <memory>
#include <ostream>
-#include <sstream>
#include <string>
#include <type_traits>
diff --git a/absl/strings/internal/utf8_test.cc b/absl/strings/internal/utf8_test.cc
index 4d43742..64cec70 100644
--- a/absl/strings/internal/utf8_test.cc
+++ b/absl/strings/internal/utf8_test.cc
@@ -14,12 +14,11 @@
#include "absl/strings/internal/utf8.h"
-#include <cctype>
-#include <cstdlib>
-#include <cstring>
#include <cstdint>
+#include <utility>
#include "gtest/gtest.h"
+#include "absl/base/port.h"
namespace {
diff --git a/absl/strings/match.cc b/absl/strings/match.cc
index 53881bd..25bd7f0 100644
--- a/absl/strings/match.cc
+++ b/absl/strings/match.cc
@@ -27,9 +27,9 @@ bool CaseEqual(absl::string_view piece1, absl::string_view piece2) {
}
} // namespace
-bool StartsWithIgnoreCase(absl::string_view text, absl::string_view preffix) {
- return (text.size() >= preffix.size()) &&
- CaseEqual(text.substr(0, preffix.size()), preffix);
+bool StartsWithIgnoreCase(absl::string_view text, absl::string_view prefix) {
+ return (text.size() >= prefix.size()) &&
+ CaseEqual(text.substr(0, prefix.size()), prefix);
}
bool EndsWithIgnoreCase(absl::string_view text, absl::string_view suffix) {
diff --git a/absl/strings/match.h b/absl/strings/match.h
index 4a5d1c0..4ac35f1 100644
--- a/absl/strings/match.h
+++ b/absl/strings/match.h
@@ -41,40 +41,42 @@ namespace absl {
// StrContains()
//
-// Returns whether a given std::string `s` contains the substring `x`.
-inline bool StrContains(absl::string_view s, absl::string_view x) {
- return static_cast<absl::string_view::size_type>(s.find(x, 0)) != s.npos;
+// Returns whether a given std::string `haystack` contains the substring `needle`.
+inline bool StrContains(absl::string_view haystack, absl::string_view needle) {
+ return static_cast<absl::string_view::size_type>(haystack.find(needle, 0)) !=
+ haystack.npos;
}
// StartsWith()
//
-// Returns whether a given std::string `s` begins with `x`.
-inline bool StartsWith(absl::string_view s, absl::string_view x) {
- return x.empty() ||
- (s.size() >= x.size() && memcmp(s.data(), x.data(), x.size()) == 0);
+// Returns whether a given std::string `text` begins with `prefix`.
+inline bool StartsWith(absl::string_view text, absl::string_view prefix) {
+ return prefix.empty() ||
+ (text.size() >= prefix.size() &&
+ memcmp(text.data(), prefix.data(), prefix.size()) == 0);
}
// EndsWith()
//
-// Returns whether a given std::string `s` ends `x`.
-inline bool EndsWith(absl::string_view s, absl::string_view x) {
- return x.empty() ||
- (s.size() >= x.size() &&
- memcmp(s.data() + (s.size() - x.size()), x.data(), x.size()) == 0);
+// Returns whether a given std::string `text` ends with `suffix`.
+inline bool EndsWith(absl::string_view text, absl::string_view suffix) {
+ return suffix.empty() ||
+ (text.size() >= suffix.size() &&
+ memcmp(text.data() + (text.size() - suffix.size()), suffix.data(),
+ suffix.size()) == 0);
}
// StartsWithIgnoreCase()
//
// Returns whether a given std::string `text` starts with `starts_with`, ignoring
// case in the comparison.
-bool StartsWithIgnoreCase(absl::string_view text,
- absl::string_view starts_with);
+bool StartsWithIgnoreCase(absl::string_view text, absl::string_view prefix);
// EndsWithIgnoreCase()
//
// Returns whether a given std::string `text` ends with `ends_with`, ignoring case
// in the comparison.
-bool EndsWithIgnoreCase(absl::string_view text, absl::string_view ends_with);
+bool EndsWithIgnoreCase(absl::string_view text, absl::string_view suffix);
} // namespace absl
diff --git a/absl/strings/numbers.cc b/absl/strings/numbers.cc
index 3b093b9..ac73f53 100644
--- a/absl/strings/numbers.cc
+++ b/absl/strings/numbers.cc
@@ -3,19 +3,20 @@
#include "absl/strings/numbers.h"
+#include <algorithm>
#include <cassert>
-#include <cctype>
#include <cfloat> // for DBL_DIG and FLT_DIG
#include <cmath> // for HUGE_VAL
+#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
+#include <iterator>
#include <limits>
#include <memory>
-#include <string>
+#include <utility>
#include "absl/base/internal/raw_logging.h"
-#include "absl/numeric/int128.h"
#include "absl/strings/ascii.h"
#include "absl/strings/internal/memutil.h"
#include "absl/strings/str_cat.h"
@@ -291,386 +292,6 @@ char* numbers_internal::FastInt64ToBuffer(int64_t i, char* buffer) {
return numbers_internal::FastUInt64ToBuffer(u, buffer);
}
-// Although DBL_DIG is typically 15, DBL_MAX is normally represented with 17
-// digits of precision. When converted to a std::string value with fewer digits
-// of precision using strtod(), the result can be bigger than DBL_MAX due to
-// a rounding error. Converting this value back to a double will produce an
-// Inf which will trigger a SIGFPE if FP exceptions are enabled. We skip
-// the precision check for sufficiently large values to avoid the SIGFPE.
-static const double kDoublePrecisionCheckMax = DBL_MAX / 1.000000000000001;
-
-char* numbers_internal::RoundTripDoubleToBuffer(double d, char* buffer) {
- // DBL_DIG is 15 for IEEE-754 doubles, which are used on almost all
- // platforms these days. Just in case some system exists where DBL_DIG
- // is significantly larger -- and risks overflowing our buffer -- we have
- // this assert.
- static_assert(DBL_DIG < 20, "DBL_DIG is too big");
-
- bool full_precision_needed = true;
- if (std::abs(d) <= kDoublePrecisionCheckMax) {
- int snprintf_result = snprintf(buffer, numbers_internal::kFastToBufferSize,
- "%.*g", DBL_DIG, d);
-
- // The snprintf should never overflow because the buffer is significantly
- // larger than the precision we asked for.
- assert(snprintf_result > 0 &&
- snprintf_result < numbers_internal::kFastToBufferSize);
- (void)snprintf_result;
-
- full_precision_needed = strtod(buffer, nullptr) != d;
- }
-
- if (full_precision_needed) {
- int snprintf_result = snprintf(buffer, numbers_internal::kFastToBufferSize,
- "%.*g", DBL_DIG + 2, d);
-
- // Should never overflow; see above.
- assert(snprintf_result > 0 &&
- snprintf_result < numbers_internal::kFastToBufferSize);
- (void)snprintf_result;
- }
- return buffer;
-}
-// This table is used to quickly calculate the base-ten exponent of a given
-// float, and then to provide a multiplier to bring that number into the
-// range 1-999,999,999, that is, into uint32_t range. Finally, the exp
-// std::string is made available so there is one less int-to-std::string conversion
-// to be done.
-
-struct Spec {
- double min_range;
- double multiplier;
- const char expstr[5];
-};
-const Spec neg_exp_table[] = {
- {1.4e-45f, 1e+55, "e-45"}, //
- {1e-44f, 1e+54, "e-44"}, //
- {1e-43f, 1e+53, "e-43"}, //
- {1e-42f, 1e+52, "e-42"}, //
- {1e-41f, 1e+51, "e-41"}, //
- {1e-40f, 1e+50, "e-40"}, //
- {1e-39f, 1e+49, "e-39"}, //
- {1e-38f, 1e+48, "e-38"}, //
- {1e-37f, 1e+47, "e-37"}, //
- {1e-36f, 1e+46, "e-36"}, //
- {1e-35f, 1e+45, "e-35"}, //
- {1e-34f, 1e+44, "e-34"}, //
- {1e-33f, 1e+43, "e-33"}, //
- {1e-32f, 1e+42, "e-32"}, //
- {1e-31f, 1e+41, "e-31"}, //
- {1e-30f, 1e+40, "e-30"}, //
- {1e-29f, 1e+39, "e-29"}, //
- {1e-28f, 1e+38, "e-28"}, //
- {1e-27f, 1e+37, "e-27"}, //
- {1e-26f, 1e+36, "e-26"}, //
- {1e-25f, 1e+35, "e-25"}, //
- {1e-24f, 1e+34, "e-24"}, //
- {1e-23f, 1e+33, "e-23"}, //
- {1e-22f, 1e+32, "e-22"}, //
- {1e-21f, 1e+31, "e-21"}, //
- {1e-20f, 1e+30, "e-20"}, //
- {1e-19f, 1e+29, "e-19"}, //
- {1e-18f, 1e+28, "e-18"}, //
- {1e-17f, 1e+27, "e-17"}, //
- {1e-16f, 1e+26, "e-16"}, //
- {1e-15f, 1e+25, "e-15"}, //
- {1e-14f, 1e+24, "e-14"}, //
- {1e-13f, 1e+23, "e-13"}, //
- {1e-12f, 1e+22, "e-12"}, //
- {1e-11f, 1e+21, "e-11"}, //
- {1e-10f, 1e+20, "e-10"}, //
- {1e-09f, 1e+19, "e-09"}, //
- {1e-08f, 1e+18, "e-08"}, //
- {1e-07f, 1e+17, "e-07"}, //
- {1e-06f, 1e+16, "e-06"}, //
- {1e-05f, 1e+15, "e-05"}, //
- {1e-04f, 1e+14, "e-04"}, //
-};
-
-const Spec pos_exp_table[] = {
- {1e+08f, 1e+02, "e+08"}, //
- {1e+09f, 1e+01, "e+09"}, //
- {1e+10f, 1e+00, "e+10"}, //
- {1e+11f, 1e-01, "e+11"}, //
- {1e+12f, 1e-02, "e+12"}, //
- {1e+13f, 1e-03, "e+13"}, //
- {1e+14f, 1e-04, "e+14"}, //
- {1e+15f, 1e-05, "e+15"}, //
- {1e+16f, 1e-06, "e+16"}, //
- {1e+17f, 1e-07, "e+17"}, //
- {1e+18f, 1e-08, "e+18"}, //
- {1e+19f, 1e-09, "e+19"}, //
- {1e+20f, 1e-10, "e+20"}, //
- {1e+21f, 1e-11, "e+21"}, //
- {1e+22f, 1e-12, "e+22"}, //
- {1e+23f, 1e-13, "e+23"}, //
- {1e+24f, 1e-14, "e+24"}, //
- {1e+25f, 1e-15, "e+25"}, //
- {1e+26f, 1e-16, "e+26"}, //
- {1e+27f, 1e-17, "e+27"}, //
- {1e+28f, 1e-18, "e+28"}, //
- {1e+29f, 1e-19, "e+29"}, //
- {1e+30f, 1e-20, "e+30"}, //
- {1e+31f, 1e-21, "e+31"}, //
- {1e+32f, 1e-22, "e+32"}, //
- {1e+33f, 1e-23, "e+33"}, //
- {1e+34f, 1e-24, "e+34"}, //
- {1e+35f, 1e-25, "e+35"}, //
- {1e+36f, 1e-26, "e+36"}, //
- {1e+37f, 1e-27, "e+37"}, //
- {1e+38f, 1e-28, "e+38"}, //
- {1e+39, 1e-29, "e+39"}, //
-};
-
-struct ExpCompare {
- bool operator()(const Spec& spec, double d) const {
- return spec.min_range < d;
- }
-};
-
-// Utility routine(s) for RoundTripFloatToBuffer:
-// OutputNecessaryDigits takes two 11-digit numbers, whose integer portion
-// represents the fractional part of a floating-point number, and outputs a
-// number that is in-between them, with the fewest digits possible. For
-// instance, given 12345678900 and 12345876900, it would output "0123457".
-// When there are multiple final digits that would satisfy this requirement,
-// this routine attempts to use a digit that would represent the average of
-// lower_double and upper_double.
-//
-// Although the routine works using integers, all callers use doubles, so
-// for their convenience this routine accepts doubles.
-static char* OutputNecessaryDigits(double lower_double, double upper_double,
- char* out) {
- assert(lower_double > 0);
- assert(lower_double < upper_double - 10);
- assert(upper_double < 100000000000.0);
-
- // Narrow the range a bit; without this bias, an input of lower=87654320010.0
- // and upper=87654320100.0 would produce an output of 876543201
- //
- // We do this in three steps: first, we lower the upper bound and truncate it
- // to an integer. Then, we increase the lower bound by exactly the amount we
- // just decreased the upper bound by - at that point, the midpoint is exactly
- // where it used to be. Then we truncate the lower bound.
-
- uint64_t upper64 = upper_double - (1.0 / 1024);
- double shrink = upper_double - upper64;
- uint64_t lower64 = lower_double + shrink;
-
- // Theory of operation: we convert the lower number to ascii representation,
- // two digits at a time. As we go, we remove the same digits from the upper
- // number. When we see the upper number does not share those same digits, we
- // know we can stop converting. When we stop, the last digit we output is
- // taken from the average of upper and lower values, rounded up.
- char buf[2];
- uint32_t lodigits =
- static_cast<uint32_t>(lower64 / 1000000000); // 1,000,000,000
- uint64_t mul64 = lodigits * uint64_t{1000000000};
-
- PutTwoDigits(lodigits, out);
- out += 2;
- if (upper64 - mul64 >= 1000000000) { // digit mismatch!
- PutTwoDigits(upper64 / 1000000000, buf);
- if (out[-2] != buf[0]) {
- out[-2] = '0' + (upper64 + lower64 + 10000000000) / 20000000000;
- --out;
- } else {
- PutTwoDigits((upper64 + lower64 + 1000000000) / 2000000000, out - 2);
- }
- *out = '\0';
- return out;
- }
- uint32_t lower = static_cast<uint32_t>(lower64 - mul64);
- uint32_t upper = static_cast<uint32_t>(upper64 - mul64);
-
- lodigits = lower / 10000000; // 10,000,000
- uint32_t mul = lodigits * 10000000;
- PutTwoDigits(lodigits, out);
- out += 2;
- if (upper - mul >= 10000000) { // digit mismatch!
- PutTwoDigits(upper / 10000000, buf);
- if (out[-2] != buf[0]) {
- out[-2] = '0' + (upper + lower + 100000000) / 200000000;
- --out;
- } else {
- PutTwoDigits((upper + lower + 10000000) / 20000000, out - 2);
- }
- *out = '\0';
- return out;
- }
- lower -= mul;
- upper -= mul;
-
- lodigits = lower / 100000; // 100,000
- mul = lodigits * 100000;
- PutTwoDigits(lodigits, out);
- out += 2;
- if (upper - mul >= 100000) { // digit mismatch!
- PutTwoDigits(upper / 100000, buf);
- if (out[-2] != buf[0]) {
- out[-2] = '0' + (upper + lower + 1000000) / 2000000;
- --out;
- } else {
- PutTwoDigits((upper + lower + 100000) / 200000, out - 2);
- }
- *out = '\0';
- return out;
- }
- lower -= mul;
- upper -= mul;
-
- lodigits = lower / 1000;
- mul = lodigits * 1000;
- PutTwoDigits(lodigits, out);
- out += 2;
- if (upper - mul >= 1000) { // digit mismatch!
- PutTwoDigits(upper / 1000, buf);
- if (out[-2] != buf[0]) {
- out[-2] = '0' + (upper + lower + 10000) / 20000;
- --out;
- } else {
- PutTwoDigits((upper + lower + 1000) / 2000, out - 2);
- }
- *out = '\0';
- return out;
- }
- lower -= mul;
- upper -= mul;
-
- PutTwoDigits(lower / 10, out);
- out += 2;
- PutTwoDigits(upper / 10, buf);
- if (out[-2] != buf[0]) {
- out[-2] = '0' + (upper + lower + 100) / 200;
- --out;
- } else {
- PutTwoDigits((upper + lower + 10) / 20, out - 2);
- }
- *out = '\0';
- return out;
-}
-
-// RoundTripFloatToBuffer converts the given float into a std::string which, if
-// passed to strtof, will produce the exact same original float. It does this
-// by computing the range of possible doubles which map to the given float, and
-// then examining the digits of the doubles in that range. If all the doubles
-// in the range start with "2.37", then clearly our float does, too. As soon as
-// they diverge, only one more digit is needed.
-char* numbers_internal::RoundTripFloatToBuffer(float f, char* buffer) {
- static_assert(std::numeric_limits<float>::is_iec559,
- "IEEE-754/IEC-559 support only");
-
- char* out = buffer; // we write data to out, incrementing as we go, but
- // FloatToBuffer always returns the address of the buffer
- // passed in.
-
- if (std::isnan(f)) {
- strcpy(out, "nan"); // NOLINT(runtime/printf)
- return buffer;
- }
- if (f == 0) { // +0 and -0 are handled here
- if (std::signbit(f)) {
- strcpy(out, "-0"); // NOLINT(runtime/printf)
- } else {
- strcpy(out, "0"); // NOLINT(runtime/printf)
- }
- return buffer;
- }
- if (f < 0) {
- *out++ = '-';
- f = -f;
- }
- if (std::isinf(f)) {
- strcpy(out, "inf"); // NOLINT(runtime/printf)
- return buffer;
- }
-
- double next_lower = nextafterf(f, 0.0f);
- // For all doubles in the range lower_bound < f < upper_bound, the
- // nearest float is f.
- double lower_bound = (f + next_lower) * 0.5;
- double upper_bound = f + (f - lower_bound);
- // Note: because std::nextafter is slow, we calculate upper_bound
- // assuming that it is the same distance from f as lower_bound is.
- // For exact powers of two, upper_bound is actually twice as far
- // from f as lower_bound is, but this turns out not to matter.
-
- // Most callers pass floats that are either 0 or within the
- // range 0.0001 through 100,000,000, so handle those first,
- // since they don't need exponential notation.
- const Spec* spec = nullptr;
- if (f < 1.0) {
- if (f >= 0.0001f) {
- // for fractional values, we set up the multiplier at the same
- // time as we output the leading "0." / "0.0" / "0.00" / "0.000"
- double multiplier = 1e+11;
- *out++ = '0';
- *out++ = '.';
- if (f < 0.1f) {
- multiplier = 1e+12;
- *out++ = '0';
- if (f < 0.01f) {
- multiplier = 1e+13;
- *out++ = '0';
- if (f < 0.001f) {
- multiplier = 1e+14;
- *out++ = '0';
- }
- }
- }
- OutputNecessaryDigits(lower_bound * multiplier, upper_bound * multiplier,
- out);
- return buffer;
- }
- spec = std::lower_bound(std::begin(neg_exp_table), std::end(neg_exp_table),
- double{f}, ExpCompare());
- if (spec == std::end(neg_exp_table)) --spec;
- } else if (f < 1e8) {
- // Handling non-exponential format greater than 1.0 is similar to the above,
- // but instead of 0.0 / 0.00 / 0.000, the prefix is simply the truncated
- // integer part of f.
- int32_t as_int = f;
- out = numbers_internal::FastUInt32ToBuffer(as_int, out);
- // Easy: if the integer part is within (lower_bound, upper_bound), then we
- // are already done.
- if (as_int > lower_bound && as_int < upper_bound) {
- return buffer;
- }
- *out++ = '.';
- OutputNecessaryDigits((lower_bound - as_int) * 1e11,
- (upper_bound - as_int) * 1e11, out);
- return buffer;
- } else {
- spec = std::lower_bound(std::begin(pos_exp_table),
- std::end(pos_exp_table),
- double{f}, ExpCompare());
- if (spec == std::end(pos_exp_table)) --spec;
- }
- // Exponential notation from here on. "spec" was computed using lower_bound,
- // which means it's the first spec from the table where min_range is greater
- // or equal to f.
- // Unfortunately that's not quite what we want; we want a min_range that is
- // less or equal. So first thing, if it was greater, back up one entry.
- if (spec->min_range > f) --spec;
-
- // The digits might be "237000123", but we want "2.37000123",
- // so we output the digits one character later, and then move the first
- // digit back so we can stick the "." in.
- char* start = out;
- out = OutputNecessaryDigits(lower_bound * spec->multiplier,
- upper_bound * spec->multiplier, start + 1);
- start[0] = start[1];
- start[1] = '.';
-
- // If it turns out there was only one digit output, then back up over the '.'
- if (out == &start[2]) --out;
-
- // Now add the "e+NN" part.
- memcpy(out, spec->expstr, 4);
- out[4] = '\0';
- return buffer;
-}
-
// Returns the number of leading 0 bits in a 64-bit value.
// TODO(jorg): Replace with builtin_clzll if available.
// Are we shipping util/bits in absl?
diff --git a/absl/strings/numbers.h b/absl/strings/numbers.h
index f17dc97..74aebc8 100644
--- a/absl/strings/numbers.h
+++ b/absl/strings/numbers.h
@@ -92,9 +92,6 @@ char* FastUInt64ToBuffer(uint64_t i, char* buffer);
static const int kFastToBufferSize = 32;
static const int kSixDigitsToBufferSize = 16;
-char* RoundTripDoubleToBuffer(double d, char* buffer);
-char* RoundTripFloatToBuffer(float f, char* buffer);
-
// Helper function for fast formatting of floating-point values.
// The result is the same as printf's "%g", a.k.a. "%.6g"; that is, six
// significant digits are returned, trailing zeros are removed, and numbers
diff --git a/absl/strings/numbers_test.cc b/absl/strings/numbers_test.cc
index 9b74d67..817604d 100644
--- a/absl/strings/numbers_test.cc
+++ b/absl/strings/numbers_test.cc
@@ -3,10 +3,7 @@
#include "absl/strings/numbers.h"
#include <sys/types.h>
-#include <algorithm>
-#include <cctype>
#include <cfenv> // NOLINT(build/c++11)
-#include <cfloat>
#include <cinttypes>
#include <climits>
#include <cmath>
@@ -25,7 +22,6 @@
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "absl/base/internal/raw_logging.h"
-#include "absl/base/port.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/internal/numbers_test_common.inc"
@@ -42,7 +38,6 @@ using absl::numbers_internal::safe_strto32_base;
using absl::numbers_internal::safe_strto64_base;
using absl::numbers_internal::safe_strtou32_base;
using absl::numbers_internal::safe_strtou64_base;
-using absl::numbers_internal::RoundTripFloatToBuffer;
using absl::numbers_internal::SixDigitsToBuffer;
using absl::SimpleAtoi;
using testing::Eq;
@@ -776,42 +771,6 @@ void ExhaustiveFloat(uint32_t cases, R&& runnable) {
}
}
-TEST_F(SimpleDtoaTest, ExhaustiveFloatToBuffer) {
- uint64_t test_count = 0;
- std::vector<float> mismatches;
- ExhaustiveFloat(kFloatNumCases, [&](float f) {
- if (f != f) return; // rule out NaNs
- ++test_count;
- char fastbuf[kFastToBufferSize];
- RoundTripFloatToBuffer(f, fastbuf);
- float round_trip = strtof(fastbuf, nullptr);
- if (f != round_trip) {
- mismatches.push_back(f);
- if (mismatches.size() < 10) {
- ABSL_RAW_LOG(ERROR, "%s",
- absl::StrCat("Round-trip failure with float. ", "f=", f,
- "=", ToNineDigits(f), " fast=", fastbuf,
- " strtof=", ToNineDigits(round_trip))
- .c_str());
- }
- }
- });
- if (!mismatches.empty()) {
- EXPECT_EQ(mismatches.size(), 0);
- for (size_t i = 0; i < mismatches.size(); ++i) {
- if (i > 100) i = mismatches.size() - 1;
- float f = mismatches[i];
- std::string msg =
- absl::StrCat("Mismatch #", i, " f=", f, " (", ToNineDigits(f), ")");
- char buf[kFastToBufferSize];
- absl::StrAppend(&msg, " fast='", RoundTripFloatToBuffer(f, buf), "'");
- float rt = strtof(buf, nullptr);
- absl::StrAppend(&msg, " rt=", ToNineDigits(rt));
- ABSL_RAW_LOG(ERROR, "%s", msg.c_str());
- }
- }
-}
-
TEST_F(SimpleDtoaTest, ExhaustiveDoubleToSixDigits) {
uint64_t test_count = 0;
std::vector<double> mismatches;
diff --git a/absl/strings/str_cat.cc b/absl/strings/str_cat.cc
index 0c75655..99eb289 100644
--- a/absl/strings/str_cat.cc
+++ b/absl/strings/str_cat.cc
@@ -14,9 +14,9 @@
#include "absl/strings/str_cat.h"
-#include <cstdarg>
+#include <assert.h>
+#include <algorithm>
#include <cstdint>
-#include <cstdio>
#include <cstring>
#include "absl/strings/ascii.h"
diff --git a/absl/strings/str_join_test.cc b/absl/strings/str_join_test.cc
index 7c2ed09..03b60f0 100644
--- a/absl/strings/str_join_test.cc
+++ b/absl/strings/str_join_test.cc
@@ -16,22 +16,21 @@
#include "absl/strings/str_join.h"
-#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <cstdio>
+#include <functional>
#include <initializer_list>
#include <map>
+#include <memory>
#include <ostream>
-#include <random>
#include <set>
#include <tuple>
+#include <type_traits>
#include <vector>
-#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "absl/base/macros.h"
-#include "absl/base/port.h"
#include "absl/memory/memory.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/str_split.h"
diff --git a/absl/strings/str_replace_test.cc b/absl/strings/str_replace_test.cc
index f49c7e1..5d003a2 100644
--- a/absl/strings/str_replace_test.cc
+++ b/absl/strings/str_replace_test.cc
@@ -15,11 +15,12 @@
#include "absl/strings/str_replace.h"
#include <list>
+#include <map>
#include <tuple>
#include "gtest/gtest.h"
-#include "absl/strings/str_split.h"
#include "absl/strings/str_cat.h"
+#include "absl/strings/str_split.h"
TEST(StrReplaceAll, OneReplacement) {
std::string s;
diff --git a/absl/strings/str_split.cc b/absl/strings/str_split.cc
index 910a67c..0207213 100644
--- a/absl/strings/str_split.cc
+++ b/absl/strings/str_split.cc
@@ -14,11 +14,14 @@
#include "absl/strings/str_split.h"
+#include <algorithm>
#include <cassert>
+#include <cstdint>
#include <cstdlib>
#include <cstring>
#include <iterator>
#include <limits>
+#include <memory>
#include "absl/base/internal/raw_logging.h"
#include "absl/strings/ascii.h"
diff --git a/absl/strings/str_split_test.cc b/absl/strings/str_split_test.cc
index a95a0fb..22a68d0 100644
--- a/absl/strings/str_split_test.cc
+++ b/absl/strings/str_split_test.cc
@@ -14,15 +14,13 @@
#include "absl/strings/str_split.h"
-#include <climits>
-#include <cstdlib>
-#include <cstring>
#include <deque>
-#include <limits>
+#include <initializer_list>
#include <list>
#include <map>
#include <memory>
#include <string>
+#include <type_traits>
#include <unordered_map>
#include <unordered_set>
#include <vector>
@@ -31,7 +29,6 @@
#include "gtest/gtest.h"
#include "absl/base/dynamic_annotations.h" // for RunningOnValgrind
#include "absl/base/macros.h"
-#include "absl/base/port.h"
#include "absl/strings/numbers.h"
namespace {
diff --git a/absl/strings/string_view.cc b/absl/strings/string_view.cc
index 4d4ba6c..0e17295 100644
--- a/absl/strings/string_view.cc
+++ b/absl/strings/string_view.cc
@@ -20,7 +20,6 @@
#include <climits>
#include <cstring>
#include <ostream>
-#include <string>
#include "absl/strings/internal/memutil.h"
#include "absl/strings/internal/resize_uninitialized.h"
diff --git a/absl/strings/string_view.h b/absl/strings/string_view.h
index e2609f1..8e37acb 100644
--- a/absl/strings/string_view.h
+++ b/absl/strings/string_view.h
@@ -180,9 +180,9 @@ class string_view {
constexpr string_view(const char* data, size_type len)
: ptr_(data), length_(CheckLengthInternal(len)) {}
- // NOTE(b/36227513): harmlessly omitted to work around gdb bug.
- // constexpr string_view(const string_view&) noexcept = default;
- // string_view& operator=(const string_view&) noexcept = default;
+ // NOTE: Harmlessly omitted to work around gdb bug.
+ // constexpr string_view(const string_view&) noexcept = default;
+ // string_view& operator=(const string_view&) noexcept = default;
// Iterators
@@ -550,8 +550,7 @@ namespace absl {
// ClippedSubstr()
//
// Like `s.substr(pos, n)`, but clips `pos` to an upper bound of `s.size()`.
-// Provided because std::string_view::substr throws if `pos > size()`,
-// to support b/37991613.
+// Provided because std::string_view::substr throws if `pos > size()`
inline string_view ClippedSubstr(string_view s, size_t pos,
size_t n = string_view::npos) {
pos = std::min(pos, static_cast<size_t>(s.size()));
diff --git a/absl/strings/string_view_test.cc b/absl/strings/string_view_test.cc
index 439d649..6be6f3b 100644
--- a/absl/strings/string_view_test.cc
+++ b/absl/strings/string_view_test.cc
@@ -14,12 +14,13 @@
#include "absl/strings/string_view.h"
-#include <algorithm>
+#include <stdlib.h>
#include <iomanip>
#include <iterator>
+#include <limits>
#include <map>
-#include <random>
#include <sstream>
+#include <stdexcept>
#include <string>
#include <type_traits>
#include <utility>
@@ -27,7 +28,6 @@
#include "gtest/gtest.h"
#include "absl/base/config.h"
#include "absl/base/dynamic_annotations.h"
-#include "absl/base/port.h"
namespace {
diff --git a/absl/strings/strip.cc b/absl/strings/strip.cc
index 968c09c..adc219f 100644
--- a/absl/strings/strip.cc
+++ b/absl/strings/strip.cc
@@ -18,7 +18,6 @@
#include "absl/strings/strip.h"
#include <algorithm>
-#include <cassert>
#include <cstring>
#include <string>
diff --git a/absl/strings/substitute.h b/absl/strings/substitute.h
index 5d6bfd9..3fc4ac4 100644
--- a/absl/strings/substitute.h
+++ b/absl/strings/substitute.h
@@ -73,7 +73,7 @@
// * calls for a position argument which is not provided,
// e.g. Substitute("Hello $2", "world"), or
// * specifies a non-digit, non-$ character after an unescaped $ character,
-// e.g. "Hello %f".
+// e.g. "Hello $f".
// In debug mode, i.e. #ifndef NDEBUG, such errors terminate the program.
#ifndef ABSL_STRINGS_SUBSTITUTE_H_
@@ -149,9 +149,11 @@ class Arg {
: piece_(scratch_,
numbers_internal::FastIntToBuffer(value, scratch_) - scratch_) {}
Arg(float value) // NOLINT(runtime/explicit)
- : piece_(numbers_internal::RoundTripFloatToBuffer(value, scratch_)) {}
+ : piece_(scratch_, numbers_internal::SixDigitsToBuffer(value, scratch_)) {
+ }
Arg(double value) // NOLINT(runtime/explicit)
- : piece_(numbers_internal::RoundTripDoubleToBuffer(value, scratch_)) {}
+ : piece_(scratch_, numbers_internal::SixDigitsToBuffer(value, scratch_)) {
+ }
Arg(bool value) // NOLINT(runtime/explicit)
: piece_(value ? "true" : "false") {}
// `void*` values, with the exception of `char*`, are printed as
@@ -211,9 +213,9 @@ constexpr int PlaceholderBitmask(const char* format) {
//
// Example:
// template <typename... Args>
-// void VarMsg(std::string* boilerplate, const std::string& format,
+// void VarMsg(std::string* boilerplate, absl::string_view format,
// const Args&... args) {
-// std::string s = absl::SubstituteAndAppend(boilerplate, format, args...)";
+// absl::SubstituteAndAppend(boilerplate, format, args...);
// }
//
inline void SubstituteAndAppend(std::string* output, absl::string_view format) {
@@ -458,8 +460,8 @@ void SubstituteAndAppend(
//
// Example:
// template <typename... Args>
-// void VarMsg(const std::string& format, const Args&... args) {
-// std::string s = absl::Substitute(format, args...)";
+// void VarMsg(absl::string_view format, const Args&... args) {
+// std::string s = absl::Substitute(format, args...);
ABSL_MUST_USE_RESULT inline std::string Substitute(absl::string_view format) {
std::string result;
diff --git a/absl/synchronization/blocking_counter.cc b/absl/synchronization/blocking_counter.cc
index 48e3650..7e68e96 100644
--- a/absl/synchronization/blocking_counter.cc
+++ b/absl/synchronization/blocking_counter.cc
@@ -14,6 +14,8 @@
#include "absl/synchronization/blocking_counter.h"
+#include "absl/base/internal/raw_logging.h"
+
namespace absl {
// Return whether int *arg is zero.
diff --git a/absl/synchronization/blocking_counter_test.cc b/absl/synchronization/blocking_counter_test.cc
index b4b6677..e8223f8 100644
--- a/absl/synchronization/blocking_counter_test.cc
+++ b/absl/synchronization/blocking_counter_test.cc
@@ -14,13 +14,12 @@
#include "absl/synchronization/blocking_counter.h"
-#include <functional>
-#include <memory>
#include <thread> // NOLINT(build/c++11)
#include <vector>
#include "gtest/gtest.h"
#include "absl/time/clock.h"
+#include "absl/time/time.h"
namespace absl {
namespace {
diff --git a/absl/synchronization/internal/create_thread_identity.cc b/absl/synchronization/internal/create_thread_identity.cc
index 1497634..0134a43 100644
--- a/absl/synchronization/internal/create_thread_identity.cc
+++ b/absl/synchronization/internal/create_thread_identity.cc
@@ -12,13 +12,14 @@
// See the License for the specific language governing permissions and
// limitations under the License.
+#include <stdint.h>
+#include <new>
+
// This file is a no-op if the required LowLevelAlloc support is missing.
#include "absl/base/internal/low_level_alloc.h"
#ifndef ABSL_LOW_LEVEL_ALLOC_MISSING
#include <string.h>
-#include <atomic>
-#include <memory>
#include "absl/base/internal/spinlock.h"
#include "absl/base/internal/thread_identity.h"
diff --git a/absl/synchronization/internal/graphcycles_test.cc b/absl/synchronization/internal/graphcycles_test.cc
index 734f277..9a85b39 100644
--- a/absl/synchronization/internal/graphcycles_test.cc
+++ b/absl/synchronization/internal/graphcycles_test.cc
@@ -12,22 +12,13 @@
// See the License for the specific language governing permissions and
// limitations under the License.
-// Copyright 2007 Google, Inc.
-// All rights reserved.
-
-// Author: Mike Burrows
-
-// A test for the GraphCycles interface.
-
-// This test is testing a component of //third_party/absl. As written it
-// heavily uses logging, including VLOG, so this test can't ship with Abseil.
-// We're leaving it here until Abseil gets base/logging.h in a future release.
#include "absl/synchronization/internal/graphcycles.h"
#include <map>
#include <random>
-#include <vector>
#include <unordered_set>
+#include <utility>
+#include <vector>
#include "gtest/gtest.h"
#include "absl/base/internal/raw_logging.h"
diff --git a/absl/synchronization/internal/per_thread_sem_test.cc b/absl/synchronization/internal/per_thread_sem_test.cc
index 1d072a7..61296cf 100644
--- a/absl/synchronization/internal/per_thread_sem_test.cc
+++ b/absl/synchronization/internal/per_thread_sem_test.cc
@@ -22,13 +22,13 @@
#include <string>
#include <thread> // NOLINT(build/c++11)
+#include "gtest/gtest.h"
#include "absl/base/internal/cycleclock.h"
#include "absl/base/internal/malloc_extension.h"
#include "absl/base/internal/thread_identity.h"
#include "absl/strings/str_cat.h"
#include "absl/time/clock.h"
#include "absl/time/time.h"
-#include "gtest/gtest.h"
// In this test we explicitly avoid the use of synchronization
// primitives which might use PerThreadSem, most notably absl::Mutex.
diff --git a/absl/synchronization/mutex.h b/absl/synchronization/mutex.h
index a417802..8343c9c 100644
--- a/absl/synchronization/mutex.h
+++ b/absl/synchronization/mutex.h
@@ -81,8 +81,8 @@
namespace absl {
-struct SynchWaitParams;
class Condition;
+struct SynchWaitParams;
// -----------------------------------------------------------------------------
// Mutex
diff --git a/absl/synchronization/mutex_test.cc b/absl/synchronization/mutex_test.cc
index 9cf34fc..cfe8109 100644
--- a/absl/synchronization/mutex_test.cc
+++ b/absl/synchronization/mutex_test.cc
@@ -20,7 +20,6 @@
#include <algorithm>
#include <atomic>
-#include <cstdint>
#include <cstdlib>
#include <functional>
#include <memory>
@@ -32,8 +31,6 @@
#include "gtest/gtest.h"
#include "absl/base/internal/raw_logging.h"
#include "absl/base/internal/sysinfo.h"
-#include "absl/base/macros.h"
-#include "absl/base/thread_annotations.h"
#include "absl/memory/memory.h"
#include "absl/synchronization/internal/thread_pool.h"
#include "absl/time/clock.h"
@@ -713,7 +710,6 @@ static void LockWhenTestWaitForIsCond(LockWhenTestStruct* s) {
TEST(Mutex, LockWhen) {
LockWhenTestStruct s;
- // Don't use ThreadPool for this test. See b/65107115.
std::thread t(LockWhenTestWaitForIsCond, &s);
s.mu2.LockWhen(absl::Condition(&s.waiting));
s.mu2.Unlock();
@@ -1041,8 +1037,6 @@ TEST(Mutex, DeadlockDetector) {
m2.Unlock();
m4.Unlock();
m1.Unlock();
- // Pre b/7636708 the thread local cache remembered that ID1 is assigned to m1.
- // So, we had a cycle ID1=>ID1=>ID1.
}
// Bazel has a test "warning" file that programs can write to if the
diff --git a/absl/test_dependencies.bzl b/absl/test_dependencies.bzl
index eca88d8..0190c30 100644
--- a/absl/test_dependencies.bzl
+++ b/absl/test_dependencies.bzl
@@ -2,7 +2,7 @@
# pylint: disable=pointless-std::string-statement
-# TODO(catlyons): Clean up below selectors when possible. Hold on to them for
+# TODO(absl-team): Clean up below selectors when possible. Hold on to them for
# now as we may still need our own gunit_main selectors that do not bring in any
# heapchecker-related deps, and possibly to deal with benchmark dependencies.
@@ -20,7 +20,7 @@ GUNIT_MAIN_DEPS_SELECTOR = {
],
}
-# TODO(b/30141238): In order to set up absl deps on leak checking
+# TODO(absl-team): In order to set up absl deps on leak checking
# without base, we'll need gunit_main without either
# base:heapcheck or base:noheapcheck.
GUNIT_MAIN_NO_LEAK_CHECK_DEPS = [
diff --git a/absl/time/BUILD.bazel b/absl/time/BUILD.bazel
index da8167f..0d340f2 100644
--- a/absl/time/BUILD.bazel
+++ b/absl/time/BUILD.bazel
@@ -97,16 +97,3 @@ cc_test(
"@com_googlesource_code_cctz//:time_zone",
],
)
-
-# Used by get_current_time_test, which, due to a dependency on commandlineflags
-# and some required cleanup, is staying back in //base for now.
-cc_library(
- name = "get_current_time_for_test",
- testonly = 1,
- copts = ABSL_DEFAULT_COPTS,
- textual_hdrs = [
- "clock.cc",
- "clock.h",
- ],
- deps = ["//absl/base"],
-)
diff --git a/absl/time/clock.cc b/absl/time/clock.cc
index e2bc01b..9ffc1c4 100644
--- a/absl/time/clock.cc
+++ b/absl/time/clock.cc
@@ -368,7 +368,7 @@ static uint64_t UpdateLastSample(
// into the fast past. That causes lots of register spills and reloads that
// are unnecessary unless the slow path is taken.
//
-// TODO(b/36012148) Remove this attribute when our compiler is smart enough
+// TODO(absl-team) Remove this attribute when our compiler is smart enough
// to do the right thing.
ABSL_ATTRIBUTE_NOINLINE
static int64_t GetCurrentTimeNanosSlowPath() LOCKS_EXCLUDED(lock) {
diff --git a/absl/time/duration.cc b/absl/time/duration.cc
index 07d1082..f508195 100644
--- a/absl/time/duration.cc
+++ b/absl/time/duration.cc
@@ -641,6 +641,25 @@ timeval ToTimeval(Duration d) {
return tv;
}
+std::chrono::nanoseconds ToChronoNanoseconds(Duration d) {
+ return time_internal::ToChronoDuration<std::chrono::nanoseconds>(d);
+}
+std::chrono::microseconds ToChronoMicroseconds(Duration d) {
+ return time_internal::ToChronoDuration<std::chrono::microseconds>(d);
+}
+std::chrono::milliseconds ToChronoMilliseconds(Duration d) {
+ return time_internal::ToChronoDuration<std::chrono::milliseconds>(d);
+}
+std::chrono::seconds ToChronoSeconds(Duration d) {
+ return time_internal::ToChronoDuration<std::chrono::seconds>(d);
+}
+std::chrono::minutes ToChronoMinutes(Duration d) {
+ return time_internal::ToChronoDuration<std::chrono::minutes>(d);
+}
+std::chrono::hours ToChronoHours(Duration d) {
+ return time_internal::ToChronoDuration<std::chrono::hours>(d);
+}
+
//
// To/From std::string formatting.
//
@@ -852,7 +871,7 @@ bool ParseDuration(const std::string& dur_string, Duration* d) {
return true;
}
-// TODO(b/63899288) copybara strip once dependencies are removed.
+// TODO(absl-team): Remove once dependencies are removed.
bool ParseFlag(const std::string& text, Duration* dst, std::string* /* err */) {
return ParseDuration(text, dst);
}
diff --git a/absl/time/duration_test.cc b/absl/time/duration_test.cc
index ec8e17f..ab98b02 100644
--- a/absl/time/duration_test.cc
+++ b/absl/time/duration_test.cc
@@ -12,6 +12,7 @@
// See the License for the specific language governing permissions and
// limitations under the License.
+#include <chrono> // NOLINT(build/c++11)
#include <cmath>
#include <cstdint>
#include <ctime>
@@ -132,50 +133,50 @@ TEST(Duration, ToConversion) {
#undef TEST_DURATION_CONVERSION
}
-template <int64_t n>
+template <int64_t N>
void TestToConversion() {
- constexpr absl::Duration nano = absl::Nanoseconds(n);
- EXPECT_EQ(n, absl::ToInt64Nanoseconds(nano));
+ constexpr absl::Duration nano = absl::Nanoseconds(N);
+ EXPECT_EQ(N, absl::ToInt64Nanoseconds(nano));
EXPECT_EQ(0, absl::ToInt64Microseconds(nano));
EXPECT_EQ(0, absl::ToInt64Milliseconds(nano));
EXPECT_EQ(0, absl::ToInt64Seconds(nano));
EXPECT_EQ(0, absl::ToInt64Minutes(nano));
EXPECT_EQ(0, absl::ToInt64Hours(nano));
- const absl::Duration micro = absl::Microseconds(n);
- EXPECT_EQ(n * 1000, absl::ToInt64Nanoseconds(micro));
- EXPECT_EQ(n, absl::ToInt64Microseconds(micro));
+ const absl::Duration micro = absl::Microseconds(N);
+ EXPECT_EQ(N * 1000, absl::ToInt64Nanoseconds(micro));
+ EXPECT_EQ(N, absl::ToInt64Microseconds(micro));
EXPECT_EQ(0, absl::ToInt64Milliseconds(micro));
EXPECT_EQ(0, absl::ToInt64Seconds(micro));
EXPECT_EQ(0, absl::ToInt64Minutes(micro));
EXPECT_EQ(0, absl::ToInt64Hours(micro));
- const absl::Duration milli = absl::Milliseconds(n);
- EXPECT_EQ(n * 1000 * 1000, absl::ToInt64Nanoseconds(milli));
- EXPECT_EQ(n * 1000, absl::ToInt64Microseconds(milli));
- EXPECT_EQ(n, absl::ToInt64Milliseconds(milli));
+ const absl::Duration milli = absl::Milliseconds(N);
+ EXPECT_EQ(N * 1000 * 1000, absl::ToInt64Nanoseconds(milli));
+ EXPECT_EQ(N * 1000, absl::ToInt64Microseconds(milli));
+ EXPECT_EQ(N, absl::ToInt64Milliseconds(milli));
EXPECT_EQ(0, absl::ToInt64Seconds(milli));
EXPECT_EQ(0, absl::ToInt64Minutes(milli));
EXPECT_EQ(0, absl::ToInt64Hours(milli));
- const absl::Duration sec = absl::Seconds(n);
- EXPECT_EQ(n * 1000 * 1000 * 1000, absl::ToInt64Nanoseconds(sec));
- EXPECT_EQ(n * 1000 * 1000, absl::ToInt64Microseconds(sec));
- EXPECT_EQ(n * 1000, absl::ToInt64Milliseconds(sec));
- EXPECT_EQ(n, absl::ToInt64Seconds(sec));
+ const absl::Duration sec = absl::Seconds(N);
+ EXPECT_EQ(N * 1000 * 1000 * 1000, absl::ToInt64Nanoseconds(sec));
+ EXPECT_EQ(N * 1000 * 1000, absl::ToInt64Microseconds(sec));
+ EXPECT_EQ(N * 1000, absl::ToInt64Milliseconds(sec));
+ EXPECT_EQ(N, absl::ToInt64Seconds(sec));
EXPECT_EQ(0, absl::ToInt64Minutes(sec));
EXPECT_EQ(0, absl::ToInt64Hours(sec));
- const absl::Duration min = absl::Minutes(n);
- EXPECT_EQ(n * 60 * 1000 * 1000 * 1000, absl::ToInt64Nanoseconds(min));
- EXPECT_EQ(n * 60 * 1000 * 1000, absl::ToInt64Microseconds(min));
- EXPECT_EQ(n * 60 * 1000, absl::ToInt64Milliseconds(min));
- EXPECT_EQ(n * 60, absl::ToInt64Seconds(min));
- EXPECT_EQ(n, absl::ToInt64Minutes(min));
+ const absl::Duration min = absl::Minutes(N);
+ EXPECT_EQ(N * 60 * 1000 * 1000 * 1000, absl::ToInt64Nanoseconds(min));
+ EXPECT_EQ(N * 60 * 1000 * 1000, absl::ToInt64Microseconds(min));
+ EXPECT_EQ(N * 60 * 1000, absl::ToInt64Milliseconds(min));
+ EXPECT_EQ(N * 60, absl::ToInt64Seconds(min));
+ EXPECT_EQ(N, absl::ToInt64Minutes(min));
EXPECT_EQ(0, absl::ToInt64Hours(min));
- const absl::Duration hour = absl::Hours(n);
- EXPECT_EQ(n * 60 * 60 * 1000 * 1000 * 1000, absl::ToInt64Nanoseconds(hour));
- EXPECT_EQ(n * 60 * 60 * 1000 * 1000, absl::ToInt64Microseconds(hour));
- EXPECT_EQ(n * 60 * 60 * 1000, absl::ToInt64Milliseconds(hour));
- EXPECT_EQ(n * 60 * 60, absl::ToInt64Seconds(hour));
- EXPECT_EQ(n * 60, absl::ToInt64Minutes(hour));
- EXPECT_EQ(n, absl::ToInt64Hours(hour));
+ const absl::Duration hour = absl::Hours(N);
+ EXPECT_EQ(N * 60 * 60 * 1000 * 1000 * 1000, absl::ToInt64Nanoseconds(hour));
+ EXPECT_EQ(N * 60 * 60 * 1000 * 1000, absl::ToInt64Microseconds(hour));
+ EXPECT_EQ(N * 60 * 60 * 1000, absl::ToInt64Milliseconds(hour));
+ EXPECT_EQ(N * 60 * 60, absl::ToInt64Seconds(hour));
+ EXPECT_EQ(N * 60, absl::ToInt64Minutes(hour));
+ EXPECT_EQ(N, absl::ToInt64Hours(hour));
}
TEST(Duration, ToConversionDeprecated) {
@@ -186,6 +187,149 @@ TEST(Duration, ToConversionDeprecated) {
TestToConversion<-43>();
}
+template <int64_t N>
+void TestFromChronoBasicEquality() {
+ using std::chrono::nanoseconds;
+ using std::chrono::microseconds;
+ using std::chrono::milliseconds;
+ using std::chrono::seconds;
+ using std::chrono::minutes;
+ using std::chrono::hours;
+
+ static_assert(absl::Nanoseconds(N) == absl::FromChrono(nanoseconds(N)), "");
+ static_assert(absl::Microseconds(N) == absl::FromChrono(microseconds(N)), "");
+ static_assert(absl::Milliseconds(N) == absl::FromChrono(milliseconds(N)), "");
+ static_assert(absl::Seconds(N) == absl::FromChrono(seconds(N)), "");
+ static_assert(absl::Minutes(N) == absl::FromChrono(minutes(N)), "");
+ static_assert(absl::Hours(N) == absl::FromChrono(hours(N)), "");
+}
+
+TEST(Duration, FromChrono) {
+ TestFromChronoBasicEquality<-123>();
+ TestFromChronoBasicEquality<-1>();
+ TestFromChronoBasicEquality<0>();
+ TestFromChronoBasicEquality<1>();
+ TestFromChronoBasicEquality<123>();
+
+ // Minutes (might, depending on the platform) saturate at +inf.
+ const auto chrono_minutes_max = std::chrono::minutes::max();
+ const auto minutes_max = absl::FromChrono(chrono_minutes_max);
+ const int64_t minutes_max_count = chrono_minutes_max.count();
+ if (minutes_max_count > kint64max / 60) {
+ EXPECT_EQ(absl::InfiniteDuration(), minutes_max);
+ } else {
+ EXPECT_EQ(absl::Minutes(minutes_max_count), minutes_max);
+ }
+
+ // Minutes (might, depending on the platform) saturate at -inf.
+ const auto chrono_minutes_min = std::chrono::minutes::min();
+ const auto minutes_min = absl::FromChrono(chrono_minutes_min);
+ const int64_t minutes_min_count = chrono_minutes_min.count();
+ if (minutes_min_count < kint64min / 60) {
+ EXPECT_EQ(-absl::InfiniteDuration(), minutes_min);
+ } else {
+ EXPECT_EQ(absl::Minutes(minutes_min_count), minutes_min);
+ }
+
+ // Hours (might, depending on the platform) saturate at +inf.
+ const auto chrono_hours_max = std::chrono::hours::max();
+ const auto hours_max = absl::FromChrono(chrono_hours_max);
+ const int64_t hours_max_count = chrono_hours_max.count();
+ if (hours_max_count > kint64max / 3600) {
+ EXPECT_EQ(absl::InfiniteDuration(), hours_max);
+ } else {
+ EXPECT_EQ(absl::Hours(hours_max_count), hours_max);
+ }
+
+ // Hours (might, depending on the platform) saturate at -inf.
+ const auto chrono_hours_min = std::chrono::hours::min();
+ const auto hours_min = absl::FromChrono(chrono_hours_min);
+ const int64_t hours_min_count = chrono_hours_min.count();
+ if (hours_min_count < kint64min / 3600) {
+ EXPECT_EQ(-absl::InfiniteDuration(), hours_min);
+ } else {
+ EXPECT_EQ(absl::Hours(hours_min_count), hours_min);
+ }
+}
+
+template <int64_t N>
+void TestToChrono() {
+ using std::chrono::nanoseconds;
+ using std::chrono::microseconds;
+ using std::chrono::milliseconds;
+ using std::chrono::seconds;
+ using std::chrono::minutes;
+ using std::chrono::hours;
+
+ EXPECT_EQ(nanoseconds(N), absl::ToChronoNanoseconds(absl::Nanoseconds(N)));
+ EXPECT_EQ(microseconds(N), absl::ToChronoMicroseconds(absl::Microseconds(N)));
+ EXPECT_EQ(milliseconds(N), absl::ToChronoMilliseconds(absl::Milliseconds(N)));
+ EXPECT_EQ(seconds(N), absl::ToChronoSeconds(absl::Seconds(N)));
+
+ constexpr auto absl_minutes = absl::Minutes(N);
+ auto chrono_minutes = minutes(N);
+ if (absl_minutes == -absl::InfiniteDuration()) {
+ chrono_minutes = minutes::min();
+ } else if (absl_minutes == absl::InfiniteDuration()) {
+ chrono_minutes = minutes::max();
+ }
+ EXPECT_EQ(chrono_minutes, absl::ToChronoMinutes(absl_minutes));
+
+ constexpr auto absl_hours = absl::Hours(N);
+ auto chrono_hours = hours(N);
+ if (absl_hours == -absl::InfiniteDuration()) {
+ chrono_hours = hours::min();
+ } else if (absl_hours == absl::InfiniteDuration()) {
+ chrono_hours = hours::max();
+ }
+ EXPECT_EQ(chrono_hours, absl::ToChronoHours(absl_hours));
+}
+
+TEST(Duration, ToChrono) {
+ using std::chrono::nanoseconds;
+ using std::chrono::microseconds;
+ using std::chrono::milliseconds;
+ using std::chrono::seconds;
+ using std::chrono::minutes;
+ using std::chrono::hours;
+
+ TestToChrono<kint64min>();
+ TestToChrono<-1>();
+ TestToChrono<0>();
+ TestToChrono<1>();
+ TestToChrono<kint64max>();
+
+ // Verify truncation toward zero.
+ const auto tick = absl::Nanoseconds(1) / 4;
+ EXPECT_EQ(nanoseconds(0), absl::ToChronoNanoseconds(tick));
+ EXPECT_EQ(nanoseconds(0), absl::ToChronoNanoseconds(-tick));
+ EXPECT_EQ(microseconds(0), absl::ToChronoMicroseconds(tick));
+ EXPECT_EQ(microseconds(0), absl::ToChronoMicroseconds(-tick));
+ EXPECT_EQ(milliseconds(0), absl::ToChronoMilliseconds(tick));
+ EXPECT_EQ(milliseconds(0), absl::ToChronoMilliseconds(-tick));
+ EXPECT_EQ(seconds(0), absl::ToChronoSeconds(tick));
+ EXPECT_EQ(seconds(0), absl::ToChronoSeconds(-tick));
+ EXPECT_EQ(minutes(0), absl::ToChronoMinutes(tick));
+ EXPECT_EQ(minutes(0), absl::ToChronoMinutes(-tick));
+ EXPECT_EQ(hours(0), absl::ToChronoHours(tick));
+ EXPECT_EQ(hours(0), absl::ToChronoHours(-tick));
+
+ // Verifies +/- infinity saturation at max/min.
+ constexpr auto inf = absl::InfiniteDuration();
+ EXPECT_EQ(nanoseconds::min(), absl::ToChronoNanoseconds(-inf));
+ EXPECT_EQ(nanoseconds::max(), absl::ToChronoNanoseconds(inf));
+ EXPECT_EQ(microseconds::min(), absl::ToChronoMicroseconds(-inf));
+ EXPECT_EQ(microseconds::max(), absl::ToChronoMicroseconds(inf));
+ EXPECT_EQ(milliseconds::min(), absl::ToChronoMilliseconds(-inf));
+ EXPECT_EQ(milliseconds::max(), absl::ToChronoMilliseconds(inf));
+ EXPECT_EQ(seconds::min(), absl::ToChronoSeconds(-inf));
+ EXPECT_EQ(seconds::max(), absl::ToChronoSeconds(inf));
+ EXPECT_EQ(minutes::min(), absl::ToChronoMinutes(-inf));
+ EXPECT_EQ(minutes::max(), absl::ToChronoMinutes(inf));
+ EXPECT_EQ(hours::min(), absl::ToChronoHours(-inf));
+ EXPECT_EQ(hours::max(), absl::ToChronoHours(inf));
+}
+
// Used for testing the factory overloads.
template <typename T>
struct ImplicitlyConvertible {
@@ -248,7 +392,7 @@ TEST(Duration, FactoryOverloads) {
}
TEST(Duration, InfinityExamples) {
- // These examples are used in the documentation in //base/time.h. They are
+ // These examples are used in the documentation in time.h. They are
// written so that they can be copy-n-pasted easily.
constexpr absl::Duration inf = absl::InfiniteDuration();
diff --git a/absl/time/format.cc b/absl/time/format.cc
index c58a886..7c88db5 100644
--- a/absl/time/format.cc
+++ b/absl/time/format.cc
@@ -127,8 +127,8 @@ bool ParseTime(const std::string& format, const std::string& input, absl::TimeZo
return b;
}
-// TODO(b/63899288) copybara strip once dependencies are removed.
-// Functions required to support absl::Time flags. See go/flags.
+// TODO(absl-team): Remove once dependencies are removed.
+// Functions required to support absl::Time flags.
bool ParseFlag(const std::string& text, absl::Time* t, std::string* error) {
return absl::ParseTime(RFC3339_full, text, absl::UTCTimeZone(), t, error);
}
diff --git a/absl/time/time.cc b/absl/time/time.cc
index fd5a41b..ee14ba3 100644
--- a/absl/time/time.cc
+++ b/absl/time/time.cc
@@ -367,4 +367,17 @@ int64_t ToUniversal(absl::Time t) {
return absl::FloorToUnit(t - absl::UniversalEpoch(), absl::Nanoseconds(100));
}
+Time FromChrono(const std::chrono::system_clock::time_point& tp) {
+ return time_internal::FromUnixDuration(time_internal::FromChrono(
+ tp - std::chrono::system_clock::from_time_t(0)));
+}
+
+std::chrono::system_clock::time_point ToChronoTime(absl::Time t) {
+ using D = std::chrono::system_clock::duration;
+ auto d = time_internal::ToUnixDuration(t);
+ if (d < ZeroDuration()) d = Floor(d, FromChrono(D{1}));
+ return std::chrono::system_clock::from_time_t(0) +
+ time_internal::ToChronoDuration<D>(d);
+}
+
} // namespace absl
diff --git a/absl/time/time.h b/absl/time/time.h
index 302c760..6976343 100644
--- a/absl/time/time.h
+++ b/absl/time/time.h
@@ -361,7 +361,7 @@ Duration Hours(T n) {
// Example:
//
// absl::Duration d = absl::Milliseconds(1500);
-// int64_t isec = ToInt64Seconds(d); // isec == 1
+// int64_t isec = ToInt64Seconds(d); // isec == 1
int64_t ToInt64Nanoseconds(Duration d);
int64_t ToInt64Microseconds(Duration d);
int64_t ToInt64Milliseconds(Duration d);
@@ -391,6 +391,46 @@ double ToDoubleSeconds(Duration d);
double ToDoubleMinutes(Duration d);
double ToDoubleHours(Duration d);
+// FromChrono()
+//
+// Converts any of the pre-defined std::chrono durations to an absl::Duration.
+//
+// Example:
+//
+// std::chrono::milliseconds ms(123);
+// absl::Duration d = absl::FromChrono(ms);
+constexpr Duration FromChrono(const std::chrono::nanoseconds& d);
+constexpr Duration FromChrono(const std::chrono::microseconds& d);
+constexpr Duration FromChrono(const std::chrono::milliseconds& d);
+constexpr Duration FromChrono(const std::chrono::seconds& d);
+constexpr Duration FromChrono(const std::chrono::minutes& d);
+constexpr Duration FromChrono(const std::chrono::hours& d);
+
+// ToChronoNanoseconds()
+// ToChronoMicroseconds()
+// ToChronoMilliseconds()
+// ToChronoSeconds()
+// ToChronoMinutes()
+// ToChronoHours()
+//
+// Converts an absl::Duration to any of the pre-defined std::chrono durations.
+// If overflow would occur, the returned value will saturate at the min/max
+// chrono duration value instead.
+//
+// Example:
+//
+// absl::Duration d = absl::Microseconds(123);
+// auto x = absl::ToChronoMicroseconds(d);
+// auto y = absl::ToChronoNanoseconds(d); // x == y
+// auto z = absl::ToChronoSeconds(absl::InfiniteDuration());
+// // z == std::chrono::seconds::max()
+std::chrono::nanoseconds ToChronoNanoseconds(Duration d);
+std::chrono::microseconds ToChronoMicroseconds(Duration d);
+std::chrono::milliseconds ToChronoMilliseconds(Duration d);
+std::chrono::seconds ToChronoSeconds(Duration d);
+std::chrono::minutes ToChronoMinutes(Duration d);
+std::chrono::hours ToChronoHours(Duration d);
+
// InfiniteDuration()
//
// Returns an infinite `Duration`. To get a `Duration` representing negative
@@ -445,7 +485,7 @@ inline std::ostream& operator<<(std::ostream& os, Duration d) {
bool ParseDuration(const std::string& dur_string, Duration* d);
// Flag Support
-// TODO(b/63899288) copybara strip once dependencies are removed.
+// TODO(absl-team): Remove once dependencies are removed.
// ParseFlag()
//
@@ -790,6 +830,30 @@ Time TimeFromTimeval(timeval tv);
timespec ToTimespec(Time t);
timeval ToTimeval(Time t);
+// FromChrono()
+//
+// Converts a std::chrono::system_clock::time_point to an absl::Time.
+//
+// Example:
+//
+// auto tp = std::chrono::system_clock::from_time_t(123);
+// absl::Time t = absl::FromChrono(tp);
+// // t == absl::FromTimeT(123)
+Time FromChrono(const std::chrono::system_clock::time_point& tp);
+
+// ToChronoTime()
+//
+// Converts an absl::Time to a std::chrono::system_clock::time_point. If
+// overflow would occur, the returned value will saturate at the min/max time
+// point value instead.
+//
+// Example:
+//
+// absl::Time t = absl::FromTimeT(123);
+// auto tp = absl::ToChronoTime(t);
+// // tp == std::chrono::system_clock::from_time_t(123);
+std::chrono::system_clock::time_point ToChronoTime(absl::Time);
+
// RFC3339_full
// RFC3339_sec
//
@@ -917,7 +981,7 @@ bool ParseTime(const std::string& format, const std::string& input,
bool ParseTime(const std::string& format, const std::string& input, TimeZone tz,
Time* time, std::string* err);
-// TODO(b/63899288) copybara strip once dependencies are removed.
+// TODO(absl-team): Remove once dependencies are removed.
// ParseFlag()
// UnparseFlag()
@@ -1072,6 +1136,81 @@ constexpr int64_t NegateAndSubtractOne(int64_t n) {
// knowledge, we would need to add-in/subtract-out UnixEpoch() respectively.
constexpr Time FromUnixDuration(Duration d) { return Time(d); }
constexpr Duration ToUnixDuration(Time t) { return t.rep_; }
+
+template <std::intmax_t N>
+constexpr absl::Duration FromInt64(int64_t v, std::ratio<1, N>) {
+ static_assert(0 < N && N <= 1000 * 1000 * 1000, "Unsupported ratio");
+ // Subsecond ratios cannot overflow.
+ return MakeNormalizedDuration(
+ v / N, v % N * kTicksPerNanosecond * 1000 * 1000 * 1000 / N);
+}
+constexpr absl::Duration FromInt64(int64_t v, std::ratio<60>) {
+ return Minutes(v);
+}
+constexpr absl::Duration FromInt64(int64_t v, std::ratio<3600>) {
+ return Hours(v);
+}
+
+// IsValidRep64<T>(0) is true if the expression `int64_t{std::declval<T>()}` is
+// valid. That is, if a T can be assigned to an int64_t without narrowing.
+template <typename T>
+constexpr auto IsValidRep64(int)
+ -> decltype(int64_t{std::declval<T>()}, bool()) {
+ return true;
+}
+template <typename T>
+constexpr auto IsValidRep64(char) -> bool {
+ return false;
+}
+
+// Converts a std::chrono::duration to an absl::Duration.
+template <typename Rep, typename Period>
+constexpr absl::Duration FromChrono(
+ const std::chrono::duration<Rep, Period>& d) {
+ static_assert(IsValidRep64<Rep>(0), "duration::rep is invalid");
+ return FromInt64(int64_t{d.count()}, Period{});
+}
+
+template <typename Ratio>
+int64_t ToInt64(absl::Duration d, Ratio) {
+ // Note: This may be used on MSVC, which may have a system_clock period of
+ // std::ratio<1, 10 * 1000 * 1000>
+ return ToInt64Seconds(d * Ratio::den / Ratio::num);
+}
+// Fastpath implementations for the 6 common duration units.
+inline int64_t ToInt64(absl::Duration d, std::nano) {
+ return ToInt64Nanoseconds(d);
+}
+inline int64_t ToInt64(absl::Duration d, std::micro) {
+ return ToInt64Microseconds(d);
+}
+inline int64_t ToInt64(absl::Duration d, std::milli) {
+ return ToInt64Milliseconds(d);
+}
+inline int64_t ToInt64(absl::Duration d, std::ratio<1>) {
+ return ToInt64Seconds(d);
+}
+inline int64_t ToInt64(absl::Duration d, std::ratio<60>) {
+ return ToInt64Minutes(d);
+}
+inline int64_t ToInt64(absl::Duration d, std::ratio<3600>) {
+ return ToInt64Hours(d);
+}
+
+// Converts an absl::Duration to a chrono duration of type T.
+template <typename T>
+T ToChronoDuration(absl::Duration d) {
+ using Rep = typename T::rep;
+ using Period = typename T::period;
+ static_assert(IsValidRep64<Rep>(0), "duration::rep is invalid");
+ if (time_internal::IsInfiniteDuration(d))
+ return d < ZeroDuration() ? T::min() : T::max();
+ const auto v = ToInt64(d, Period{});
+ if (v > std::numeric_limits<Rep>::max()) return T::max();
+ if (v < std::numeric_limits<Rep>::min()) return T::min();
+ return T{v};
+}
+
} // namespace time_internal
constexpr bool operator<(Duration lhs, Duration rhs) {
@@ -1156,6 +1295,25 @@ constexpr Duration InfiniteDuration() {
return time_internal::MakeDuration(std::numeric_limits<int64_t>::max(), ~0U);
}
+constexpr Duration FromChrono(const std::chrono::nanoseconds& d) {
+ return time_internal::FromChrono(d);
+}
+constexpr Duration FromChrono(const std::chrono::microseconds& d) {
+ return time_internal::FromChrono(d);
+}
+constexpr Duration FromChrono(const std::chrono::milliseconds& d) {
+ return time_internal::FromChrono(d);
+}
+constexpr Duration FromChrono(const std::chrono::seconds& d) {
+ return time_internal::FromChrono(d);
+}
+constexpr Duration FromChrono(const std::chrono::minutes& d) {
+ return time_internal::FromChrono(d);
+}
+constexpr Duration FromChrono(const std::chrono::hours& d) {
+ return time_internal::FromChrono(d);
+}
+
constexpr Time FromUnixNanos(int64_t ns) {
return time_internal::FromUnixDuration(Nanoseconds(ns));
}
diff --git a/absl/time/time_test.cc b/absl/time/time_test.cc
index 51b9e53..6408388 100644
--- a/absl/time/time_test.cc
+++ b/absl/time/time_test.cc
@@ -14,6 +14,7 @@
#include "absl/time/time.h"
+#include <chrono> // NOLINT(build/c++11)
#include <cstring>
#include <ctime>
#include <iomanip>
@@ -489,6 +490,66 @@ TEST(Time, RoundtripConversion) {
#undef TEST_CONVERSION_ROUND_TRIP
}
+template <typename Duration>
+std::chrono::system_clock::time_point MakeChronoUnixTime(const Duration& d) {
+ return std::chrono::system_clock::from_time_t(0) + d;
+}
+
+TEST(Time, FromChrono) {
+ EXPECT_EQ(absl::FromTimeT(-1),
+ absl::FromChrono(std::chrono::system_clock::from_time_t(-1)));
+ EXPECT_EQ(absl::FromTimeT(0),
+ absl::FromChrono(std::chrono::system_clock::from_time_t(0)));
+ EXPECT_EQ(absl::FromTimeT(1),
+ absl::FromChrono(std::chrono::system_clock::from_time_t(1)));
+
+ EXPECT_EQ(
+ absl::FromUnixMillis(-1),
+ absl::FromChrono(MakeChronoUnixTime(std::chrono::milliseconds(-1))));
+ EXPECT_EQ(absl::FromUnixMillis(0),
+ absl::FromChrono(MakeChronoUnixTime(std::chrono::milliseconds(0))));
+ EXPECT_EQ(absl::FromUnixMillis(1),
+ absl::FromChrono(MakeChronoUnixTime(std::chrono::milliseconds(1))));
+
+ // Chrono doesn't define exactly its range and precision (neither does
+ // absl::Time), so let's simply test +/- ~100 years to make sure things work.
+ const auto century_sec = 60 * 60 * 24 * 365 * int64_t{100};
+ const auto century = std::chrono::seconds(century_sec);
+ const auto chrono_future = MakeChronoUnixTime(century);
+ const auto chrono_past = MakeChronoUnixTime(-century);
+ EXPECT_EQ(absl::FromUnixSeconds(century_sec),
+ absl::FromChrono(chrono_future));
+ EXPECT_EQ(absl::FromUnixSeconds(-century_sec), absl::FromChrono(chrono_past));
+
+ // Roundtrip them both back to chrono.
+ EXPECT_EQ(chrono_future,
+ absl::ToChronoTime(absl::FromUnixSeconds(century_sec)));
+ EXPECT_EQ(chrono_past,
+ absl::ToChronoTime(absl::FromUnixSeconds(-century_sec)));
+}
+
+TEST(Time, ToChronoTime) {
+ EXPECT_EQ(std::chrono::system_clock::from_time_t(-1),
+ absl::ToChronoTime(absl::FromTimeT(-1)));
+ EXPECT_EQ(std::chrono::system_clock::from_time_t(0),
+ absl::ToChronoTime(absl::FromTimeT(0)));
+ EXPECT_EQ(std::chrono::system_clock::from_time_t(1),
+ absl::ToChronoTime(absl::FromTimeT(1)));
+
+ EXPECT_EQ(MakeChronoUnixTime(std::chrono::milliseconds(-1)),
+ absl::ToChronoTime(absl::FromUnixMillis(-1)));
+ EXPECT_EQ(MakeChronoUnixTime(std::chrono::milliseconds(0)),
+ absl::ToChronoTime(absl::FromUnixMillis(0)));
+ EXPECT_EQ(MakeChronoUnixTime(std::chrono::milliseconds(1)),
+ absl::ToChronoTime(absl::FromUnixMillis(1)));
+
+ // Time before the Unix epoch should floor, not trunc.
+ const auto tick = absl::Nanoseconds(1) / 4;
+ EXPECT_EQ(std::chrono::system_clock::from_time_t(0) -
+ std::chrono::system_clock::duration(1),
+ absl::ToChronoTime(absl::UnixEpoch() - tick));
+}
+
TEST(Time, ConvertDateTime) {
const absl::TimeZone utc = absl::UTCTimeZone();
const absl::TimeZone goog =
diff --git a/absl/types/BUILD.bazel b/absl/types/BUILD.bazel
index 8d09440..f1e432d 100644
--- a/absl/types/BUILD.bazel
+++ b/absl/types/BUILD.bazel
@@ -48,7 +48,7 @@ cc_library(
hdrs = ["bad_any_cast.h"],
copts = ABSL_EXCEPTIONS_FLAG + ABSL_DEFAULT_COPTS,
features = [
- "-use_header_modules", # b/33207452
+ "-use_header_modules",
],
deps = [
"//absl/base",
@@ -153,7 +153,7 @@ cc_library(
hdrs = ["bad_optional_access.h"],
copts = ABSL_DEFAULT_COPTS + ABSL_EXCEPTIONS_FLAG,
features = [
- "-use_header_modules", # b/33207452
+ "-use_header_modules",
],
deps = [
"//absl/base",
diff --git a/absl/types/any_test.cc b/absl/types/any_test.cc
index ab04bf5..aef98f3 100644
--- a/absl/types/any_test.cc
+++ b/absl/types/any_test.cc
@@ -16,7 +16,6 @@
#include <initializer_list>
#include <type_traits>
-#include <typeinfo>
#include <utility>
#include <vector>
diff --git a/absl/types/optional.h b/absl/types/optional.h
index 3e010bd..8b56513 100644
--- a/absl/types/optional.h
+++ b/absl/types/optional.h
@@ -17,7 +17,7 @@
// optional.h
// -----------------------------------------------------------------------------
//
-// This header file define the `absl::optional` type for holding a value which
+// This header file defines the `absl::optional` type for holding a value which
// may or may not be present. This type is useful for providing value semantics
// for operations that may either wish to return or hold "something-or-nothing".
//
@@ -246,7 +246,7 @@ class optional_data_base : public optional_data_dtor_base<T> {
}
};
-// TODO(b/34201852): Add another base class using
+// TODO(absl-team) Add another class using
// std::is_trivially_move_constructible trait when available to match
// http://cplusplus.github.io/LWG/lwg-defects.html#2900, for types that
// have trivial move but nontrivial copy.
@@ -502,7 +502,8 @@ class optional : private optional_internal::optional_data<T>,
// the arguments `std::forward<Args>(args)...` within the `optional`.
// (The `in_place_t` is a tag used to indicate that the contained object
// should be constructed in-place.)
- // TODO(b/34201852): Add std::is_constructible<T, Args&&...> SFINAE.
+ //
+ // TODO(absl-team): Add std::is_constructible<T, Args&&...> SFINAE.
template <typename... Args>
constexpr explicit optional(in_place_t, Args&&... args)
: data_base(in_place_t(), absl::forward<Args>(args)...) {}
diff --git a/absl/types/optional_test.cc b/absl/types/optional_test.cc
index 65f4387..645f5b9 100644
--- a/absl/types/optional_test.cc
+++ b/absl/types/optional_test.cc
@@ -328,7 +328,7 @@ TEST(optionalTest, InPlaceConstructor) {
static_assert(opt2->x == ConstexprType::kCtorInitializerList, "");
#endif
- // TODO(b/34201852): uncomment these when std::is_constructible<T, Args&&...>
+ // TODO(absl-team): uncomment these when std::is_constructible<T, Args&&...>
// SFINAE is added to optional::optional(absl::in_place_t, Args&&...).
// struct I {
// I(absl::in_place_t);
diff --git a/absl/types/span_test.cc b/absl/types/span_test.cc
index 22ea33e..5a4f001 100644
--- a/absl/types/span_test.cc
+++ b/absl/types/span_test.cc
@@ -14,7 +14,6 @@
#include "absl/types/span.h"
-#include <algorithm>
#include <array>
#include <initializer_list>
#include <numeric>
@@ -25,10 +24,9 @@
#include "gmock/gmock.h"
#include "gtest/gtest.h"
+#include "absl/base/attributes.h"
#include "absl/base/config.h"
#include "absl/base/internal/exception_testing.h"
-#include "absl/base/macros.h"
-#include "absl/base/port.h"
#include "absl/container/fixed_array.h"
#include "absl/container/inlined_vector.h"
#include "absl/strings/str_cat.h"