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-rw-r--r--CMake/AbseilDll.cmake16
-rw-r--r--CMake/AbseilHelpers.cmake12
-rw-r--r--absl/CMakeLists.txt1
-rw-r--r--absl/base/BUILD.bazel24
-rw-r--r--absl/base/CMakeLists.txt25
-rw-r--r--absl/base/attributes.h2
-rw-r--r--absl/base/internal/errno_saver.h43
-rw-r--r--absl/base/internal/errno_saver_test.cc44
-rw-r--r--absl/base/internal/spinlock_linux.inc5
-rw-r--r--absl/base/internal/spinlock_posix.inc6
-rw-r--r--absl/debugging/BUILD.bazel2
-rw-r--r--absl/debugging/CMakeLists.txt2
-rw-r--r--absl/debugging/failure_signal_handler.cc4
-rw-r--r--absl/debugging/internal/address_is_readable.cc5
-rw-r--r--absl/flags/internal/flag.h2
-rw-r--r--absl/random/internal/seed_salting_sequence_generator.cc30
-rw-r--r--absl/random/internal/seed_salting_sequence_generator_empty_sequence.cc30
-rw-r--r--absl/status/CMakeLists.txt2
-rw-r--r--absl/strings/internal/str_format/checker_test.cc2
-rw-r--r--absl/strings/internal/str_format/extension.h119
20 files changed, 248 insertions, 128 deletions
diff --git a/CMake/AbseilDll.cmake b/CMake/AbseilDll.cmake
index 8184d500ba77..90c9f1f642d4 100644
--- a/CMake/AbseilDll.cmake
+++ b/CMake/AbseilDll.cmake
@@ -16,6 +16,7 @@ set(ABSL_INTERNAL_DLL_FILES
   "base/internal/cycleclock.h"
   "base/internal/direct_mmap.h"
   "base/internal/endian.h"
+  "base/internal/errno_saver.h"
   "base/internal/exponential_biased.cc"
   "base/internal/exponential_biased.h"
   "base/internal/hide_ptr.h"
@@ -108,6 +109,8 @@ set(ABSL_INTERNAL_DLL_FILES
   "debugging/internal/symbolize.h"
   "debugging/internal/vdso_support.cc"
   "debugging/internal/vdso_support.h"
+  "functional/internal/front_binder.h"
+  "functional/bind_front.h"
   "functional/function_ref.h"
   "functional/internal/function_ref.h"
   "hash/hash.h"
@@ -169,18 +172,23 @@ set(ABSL_INTERNAL_DLL_FILES
   "random/uniform_int_distribution.h"
   "random/uniform_real_distribution.h"
   "random/zipf_distribution.h"
+  "status/status.h"
+  "status/status.cc"
+  "status/status_payload_printer.h"
+  "status/status_payload_printer.cc"
   "strings/ascii.cc"
   "strings/ascii.h"
   "strings/charconv.cc"
   "strings/charconv.h"
+  "strings/cord.cc"
+  "strings/cord.h"
   "strings/escaping.cc"
   "strings/escaping.h"
+  "strings/internal/cord_internal.h"
   "strings/internal/charconv_bigint.cc"
   "strings/internal/charconv_bigint.h"
   "strings/internal/charconv_parse.cc"
   "strings/internal/charconv_parse.h"
-  "strings/internal/escaping.cc"
-  "strings/internal/escaping.h"
   "strings/internal/stl_type_traits.h"
   "strings/match.cc"
   "strings/match.h"
@@ -200,6 +208,8 @@ set(ABSL_INTERNAL_DLL_FILES
   "strings/substitute.cc"
   "strings/substitute.h"
   "strings/internal/char_map.h"
+  "strings/internal/escaping.h"
+  "strings/internal/escaping.cc"
   "strings/internal/memutil.cc"
   "strings/internal/memutil.h"
   "strings/internal/ostringstream.cc"
@@ -308,6 +318,7 @@ set(ABSL_INTERNAL_DLL_TARGETS
   "memory"
   "strings"
   "strings_internal"
+  "cord"
   "str_format"
   "str_format_internal"
   "pow10_helper"
@@ -377,6 +388,7 @@ set(ABSL_INTERNAL_DLL_TARGETS
   "random_internal_randen_hwaes"
   "random_internal_randen_hwaes_impl"
   "random_internal_uniform_helper"
+  "status"
   "time"
   "civil_time"
   "time_zone"
diff --git a/CMake/AbseilHelpers.cmake b/CMake/AbseilHelpers.cmake
index 7571ef1b15ce..86ff9eba2a89 100644
--- a/CMake/AbseilHelpers.cmake
+++ b/CMake/AbseilHelpers.cmake
@@ -108,14 +108,16 @@ function(absl_cc_library)
     set(ABSL_CC_LIB_IS_INTERFACE 0)
   endif()
 
-  # Determine this build target's relationship to the DLL. It's one of three things:
+  # Determine this build target's relationship to the DLL. It's one of four things:
   # 1. "dll"     -- This target is part of the DLL
   # 2. "dll_dep" -- This target is not part of the DLL, but depends on the DLL.
   #                 Note that we assume any target not in the DLL depends on the
   #                 DLL. This is not a technical necessity but a convenience
   #                 which happens to be true, because nearly every target is
   #                 part of the DLL.
-  # 3. "static"  -- This target does not depend on the DLL and should be built
+  # 3. "shared"  -- This is a shared library, perhaps on a non-windows platform
+  #                 where DLL doesn't make sense.
+  # 4. "static"  -- This target does not depend on the DLL and should be built
   #                 statically.
   if (${ABSL_BUILD_DLL})
     absl_internal_dll_contains(TARGET ${_NAME} OUTPUT _in_dll)
@@ -127,6 +129,8 @@ function(absl_cc_library)
       # Building a DLL, but this target is not part of the DLL
       set(_build_type "dll_dep")
     endif()
+  elseif(BUILD_SHARED_LIBS)
+    set(_build_type "shared")
   else()
     set(_build_type "static")
   endif()
@@ -161,8 +165,8 @@ function(absl_cc_library)
           "${_gtest_link_define}"
       )
 
-    elseif(${_build_type} STREQUAL "static")
-      add_library(${_NAME} STATIC "")
+    elseif(${_build_type} STREQUAL "static" OR ${_build_type} STREQUAL "shared")
+      add_library(${_NAME} "")
       target_sources(${_NAME} PRIVATE ${ABSL_CC_LIB_SRCS} ${ABSL_CC_LIB_HDRS})
       target_link_libraries(${_NAME}
       PUBLIC ${ABSL_CC_LIB_DEPS}
diff --git a/absl/CMakeLists.txt b/absl/CMakeLists.txt
index 26693eadaad2..fbfa7822b594 100644
--- a/absl/CMakeLists.txt
+++ b/absl/CMakeLists.txt
@@ -25,6 +25,7 @@ add_subdirectory(memory)
 add_subdirectory(meta)
 add_subdirectory(numeric)
 add_subdirectory(random)
+add_subdirectory(status)
 add_subdirectory(strings)
 add_subdirectory(synchronization)
 add_subdirectory(time)
diff --git a/absl/base/BUILD.bazel b/absl/base/BUILD.bazel
index c6948a272f35..bae79427ac4e 100644
--- a/absl/base/BUILD.bazel
+++ b/absl/base/BUILD.bazel
@@ -41,6 +41,17 @@ cc_library(
 )
 
 cc_library(
+    name = "errno_saver",
+    hdrs = ["internal/errno_saver.h"],
+    copts = ABSL_DEFAULT_COPTS,
+    linkopts = ABSL_DEFAULT_LINKOPTS,
+    visibility = [
+        "//absl:__subpackages__",
+    ],
+    deps = [":config"],
+)
+
+cc_library(
     name = "log_severity",
     srcs = ["log_severity.cc"],
     hdrs = ["log_severity.h"],
@@ -87,6 +98,7 @@ cc_library(
     deps = [
         ":base_internal",
         ":core_headers",
+        ":errno_saver",
     ],
 )
 
@@ -287,6 +299,18 @@ cc_test(
     ],
 )
 
+cc_test(
+    name = "errno_saver_test",
+    size = "small",
+    srcs = ["internal/errno_saver_test.cc"],
+    copts = ABSL_TEST_COPTS,
+    linkopts = ABSL_DEFAULT_LINKOPTS,
+    deps = [
+        ":errno_saver",
+        "@com_google_googletest//:gtest_main",
+    ],
+)
+
 cc_library(
     name = "exception_testing",
     testonly = 1,
diff --git a/absl/base/CMakeLists.txt b/absl/base/CMakeLists.txt
index c21571be9b8c..14c52eabdfb3 100644
--- a/absl/base/CMakeLists.txt
+++ b/absl/base/CMakeLists.txt
@@ -30,6 +30,17 @@ absl_cc_library(
 
 absl_cc_library(
   NAME
+    errno_saver
+  HDRS
+    "internal/errno_saver.h"
+  DEPS
+    absl::config
+  COPTS
+    ${ABSL_DEFAULT_COPTS}
+)
+
+absl_cc_library(
+  NAME
     log_severity
   HDRS
     "log_severity.h"
@@ -73,6 +84,7 @@ absl_cc_library(
   DEPS
     absl::base_internal
     absl::core_headers
+    absl::errno_saver
 )
 
 absl_cc_library(
@@ -307,6 +319,19 @@ absl_cc_test(
 
 absl_cc_test(
   NAME
+    errno_saver_test
+  SRCS
+    "internal/errno_saver_test.cc"
+  COPTS
+    ${ABSL_TEST_COPTS}
+  DEPS
+    absl::errno_saver
+    gmock
+    gtest_main
+)
+
+absl_cc_test(
+  NAME
     throw_delegate_test
   SRCS
     "throw_delegate_test.cc"
diff --git a/absl/base/attributes.h b/absl/base/attributes.h
index 8f77db77d23a..ff138629d1f1 100644
--- a/absl/base/attributes.h
+++ b/absl/base/attributes.h
@@ -575,7 +575,7 @@
 // When applying ABSL_ATTRIBUTE_PACKED only to specific structure members the
 // natural alignment of structure members not annotated is preserved. Aligned
 // member accesses are faster than non-aligned member accesses even if the
-// targeted microprosessor supports non-aligned accesses.
+// targeted microprocessor supports non-aligned accesses.
 #if ABSL_HAVE_ATTRIBUTE(packed) || (defined(__GNUC__) && !defined(__clang__))
 #define ABSL_ATTRIBUTE_PACKED __attribute__((__packed__))
 #else
diff --git a/absl/base/internal/errno_saver.h b/absl/base/internal/errno_saver.h
new file mode 100644
index 000000000000..251de510fc93
--- /dev/null
+++ b/absl/base/internal/errno_saver.h
@@ -0,0 +1,43 @@
+// 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
+//
+//      https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef ABSL_BASE_INTERNAL_ERRNO_SAVER_H_
+#define ABSL_BASE_INTERNAL_ERRNO_SAVER_H_
+
+#include <cerrno>
+
+#include "absl/base/config.h"
+
+namespace absl {
+ABSL_NAMESPACE_BEGIN
+namespace base_internal {
+
+// `ErrnoSaver` captures the value of `errno` upon construction and restores it
+// upon deletion.  It is used in low-level code and must be super fast.  Do not
+// add instrumentation, even in debug modes.
+class ErrnoSaver {
+ public:
+  ErrnoSaver() : saved_errno_(errno) {}
+  ~ErrnoSaver() { errno = saved_errno_; }
+  int operator()() const { return saved_errno_; }
+
+ private:
+  const int saved_errno_;
+};
+
+}  // namespace base_internal
+ABSL_NAMESPACE_END
+}  // namespace absl
+
+#endif  // ABSL_BASE_INTERNAL_ERRNO_SAVER_H_
diff --git a/absl/base/internal/errno_saver_test.cc b/absl/base/internal/errno_saver_test.cc
new file mode 100644
index 000000000000..b845e2dd1a0f
--- /dev/null
+++ b/absl/base/internal/errno_saver_test.cc
@@ -0,0 +1,44 @@
+// Copyright 2018 The Abseil Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "absl/base/internal/errno_saver.h"
+
+#include <cerrno>
+
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+
+namespace {
+using ::testing::Eq;
+
+struct ErrnoPrinter {
+  int no;
+};
+std::ostream &operator<<(std::ostream &os, ErrnoPrinter ep) {
+  return os << strerror(ep.no) << " [" << ep.no << "]";
+}
+bool operator==(ErrnoPrinter one, ErrnoPrinter two) { return one.no == two.no; }
+
+TEST(ErrnoSaverTest, Works) {
+  errno = EDOM;
+  {
+    absl::base_internal::ErrnoSaver errno_saver;
+    EXPECT_THAT(ErrnoPrinter{errno}, Eq(ErrnoPrinter{EDOM}));
+    errno = ERANGE;
+    EXPECT_THAT(ErrnoPrinter{errno}, Eq(ErrnoPrinter{ERANGE}));
+    EXPECT_THAT(ErrnoPrinter{errno_saver()}, Eq(ErrnoPrinter{EDOM}));
+  }
+  EXPECT_THAT(ErrnoPrinter{errno}, Eq(ErrnoPrinter{EDOM}));
+}
+}  // namespace
diff --git a/absl/base/internal/spinlock_linux.inc b/absl/base/internal/spinlock_linux.inc
index 28e29d191909..323edd62f464 100644
--- a/absl/base/internal/spinlock_linux.inc
+++ b/absl/base/internal/spinlock_linux.inc
@@ -19,12 +19,12 @@
 #include <unistd.h>
 
 #include <atomic>
-#include <cerrno>
 #include <climits>
 #include <cstdint>
 #include <ctime>
 
 #include "absl/base/attributes.h"
+#include "absl/base/internal/errno_saver.h"
 
 // The SpinLock lockword is `std::atomic<uint32_t>`. Here we assert that
 // `std::atomic<uint32_t>` is bitwise equivalent of the `int` expected
@@ -51,12 +51,11 @@ extern "C" {
 ABSL_ATTRIBUTE_WEAK void AbslInternalSpinLockDelay(
     std::atomic<uint32_t> *w, uint32_t value, int loop,
     absl::base_internal::SchedulingMode) {
-  int save_errno = errno;
+  absl::base_internal::ErrnoSaver errno_saver;
   struct timespec tm;
   tm.tv_sec = 0;
   tm.tv_nsec = absl::base_internal::SpinLockSuggestedDelayNS(loop);
   syscall(SYS_futex, w, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, value, &tm);
-  errno = save_errno;
 }
 
 ABSL_ATTRIBUTE_WEAK void AbslInternalSpinLockWake(std::atomic<uint32_t> *w,
diff --git a/absl/base/internal/spinlock_posix.inc b/absl/base/internal/spinlock_posix.inc
index f025b5f8a373..fcd21b151b6e 100644
--- a/absl/base/internal/spinlock_posix.inc
+++ b/absl/base/internal/spinlock_posix.inc
@@ -15,10 +15,11 @@
 // This file is a Posix-specific part of spinlock_wait.cc
 
 #include <sched.h>
+
 #include <atomic>
 #include <ctime>
-#include <cerrno>
 
+#include "absl/base/internal/errno_saver.h"
 #include "absl/base/internal/scheduling_mode.h"
 #include "absl/base/port.h"
 
@@ -27,7 +28,7 @@ extern "C" {
 ABSL_ATTRIBUTE_WEAK void AbslInternalSpinLockDelay(
     std::atomic<uint32_t>* /* lock_word */, uint32_t /* value */, int loop,
     absl::base_internal::SchedulingMode /* mode */) {
-  int save_errno = errno;
+  absl::base_internal::ErrnoSaver errno_saver;
   if (loop == 0) {
   } else if (loop == 1) {
     sched_yield();
@@ -37,7 +38,6 @@ ABSL_ATTRIBUTE_WEAK void AbslInternalSpinLockDelay(
     tm.tv_nsec = absl::base_internal::SpinLockSuggestedDelayNS(loop);
     nanosleep(&tm, nullptr);
   }
-  errno = save_errno;
 }
 
 ABSL_ATTRIBUTE_WEAK void AbslInternalSpinLockWake(
diff --git a/absl/debugging/BUILD.bazel b/absl/debugging/BUILD.bazel
index a01408910ac4..8f521bec4692 100644
--- a/absl/debugging/BUILD.bazel
+++ b/absl/debugging/BUILD.bazel
@@ -134,6 +134,7 @@ cc_library(
         "//absl/base",
         "//absl/base:config",
         "//absl/base:core_headers",
+        "//absl/base:errno_saver",
         "//absl/base:raw_logging_internal",
     ],
 )
@@ -174,6 +175,7 @@ cc_library(
         "//absl/base:config",
         "//absl/base:core_headers",
         "//absl/base:dynamic_annotations",
+        "//absl/base:errno_saver",
         "//absl/base:raw_logging_internal",
     ],
 )
diff --git a/absl/debugging/CMakeLists.txt b/absl/debugging/CMakeLists.txt
index 66886c7a0949..77336159393d 100644
--- a/absl/debugging/CMakeLists.txt
+++ b/absl/debugging/CMakeLists.txt
@@ -118,6 +118,7 @@ absl_cc_library(
     absl::base
     absl::config
     absl::core_headers
+    absl::errno_saver
     absl::raw_logging_internal
   PUBLIC
 )
@@ -156,6 +157,7 @@ absl_cc_library(
     absl::core_headers
     absl::config
     absl::dynamic_annotations
+    absl::errno_saver
     absl::raw_logging_internal
 )
 
diff --git a/absl/debugging/failure_signal_handler.cc b/absl/debugging/failure_signal_handler.cc
index cd141ecf5d32..1f69bfa84dd9 100644
--- a/absl/debugging/failure_signal_handler.cc
+++ b/absl/debugging/failure_signal_handler.cc
@@ -41,6 +41,7 @@
 #include <ctime>
 
 #include "absl/base/attributes.h"
+#include "absl/base/internal/errno_saver.h"
 #include "absl/base/internal/raw_logging.h"
 #include "absl/base/internal/sysinfo.h"
 #include "absl/debugging/internal/examine_stack.h"
@@ -214,9 +215,8 @@ static void InstallOneFailureHandler(FailureSignalData* data,
 #endif
 
 static void WriteToStderr(const char* data) {
-  int old_errno = errno;
+  absl::base_internal::ErrnoSaver errno_saver;
   absl::raw_logging_internal::SafeWriteToStderr(data, strlen(data));
-  errno = old_errno;
 }
 
 static void WriteSignalMessage(int signo, void (*writerfn)(const char*)) {
diff --git a/absl/debugging/internal/address_is_readable.cc b/absl/debugging/internal/address_is_readable.cc
index f45e59b3836a..65376063669f 100644
--- a/absl/debugging/internal/address_is_readable.cc
+++ b/absl/debugging/internal/address_is_readable.cc
@@ -35,10 +35,12 @@ ABSL_NAMESPACE_END
 #include <fcntl.h>
 #include <sys/syscall.h>
 #include <unistd.h>
+
 #include <atomic>
 #include <cerrno>
 #include <cstdint>
 
+#include "absl/base/internal/errno_saver.h"
 #include "absl/base/internal/raw_logging.h"
 
 namespace absl {
@@ -67,7 +69,7 @@ static void Unpack(uint64_t x, int *pid, int *read_fd, int *write_fd) {
 // This is a namespace-scoped variable for correct zero-initialization.
 static std::atomic<uint64_t> pid_and_fds;  // initially 0, an invalid pid.
 bool AddressIsReadable(const void *addr) {
-  int save_errno = errno;
+  absl::base_internal::ErrnoSaver errno_saver;
   // We test whether a byte is readable by using write().  Normally, this would
   // be done via a cached file descriptor to /dev/null, but linux fails to
   // check whether the byte is readable when the destination is /dev/null, so
@@ -126,7 +128,6 @@ bool AddressIsReadable(const void *addr) {
                                           std::memory_order_relaxed);
     }
   } while (errno == EBADF);
-  errno = save_errno;
   return bytes_written == 1;
 }
 
diff --git a/absl/flags/internal/flag.h b/absl/flags/internal/flag.h
index c1beda8ebc00..35a148cf6602 100644
--- a/absl/flags/internal/flag.h
+++ b/absl/flags/internal/flag.h
@@ -465,7 +465,7 @@ class FlagImpl {
   // Flag initialization called via absl::call_once.
   void Init();
   // Attempts to parse supplied `value` std::string. If parsing is successful,
-  // returns new value. Otherwsie returns nullptr.
+  // returns new value. Otherwise returns nullptr.
   std::unique_ptr<void, DynValueDeleter> TryParse(absl::string_view value,
                                                   std::string* err) const
       ABSL_EXCLUSIVE_LOCKS_REQUIRED(*DataGuard());
diff --git a/absl/random/internal/seed_salting_sequence_generator.cc b/absl/random/internal/seed_salting_sequence_generator.cc
deleted file mode 100644
index 31fdcfe1db41..000000000000
--- a/absl/random/internal/seed_salting_sequence_generator.cc
+++ /dev/null
@@ -1,30 +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
-//
-//      https://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <iostream>
-#include <random>
-
-#include "absl/random/random.h"
-
-// This program is used in integration tests.
-
-int main() {
-  std::seed_seq seed_seq{1234};
-  absl::BitGen rng(seed_seq);
-  constexpr size_t kSequenceLength = 8;
-  for (size_t i = 0; i < kSequenceLength; i++) {
-    std::cout << rng() << "\n";
-  }
-  return 0;
-}
diff --git a/absl/random/internal/seed_salting_sequence_generator_empty_sequence.cc b/absl/random/internal/seed_salting_sequence_generator_empty_sequence.cc
deleted file mode 100644
index 8797e2e7a6f2..000000000000
--- a/absl/random/internal/seed_salting_sequence_generator_empty_sequence.cc
+++ /dev/null
@@ -1,30 +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
-//
-//      https://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <iostream>
-#include <random>
-
-#include "absl/random/random.h"
-
-// This program is used in integration tests.
-
-int main() {
-  std::seed_seq seed_seq{};
-  absl::BitGen rng(seed_seq);
-  constexpr size_t kSequenceLength = 8;
-  for (size_t i = 0; i < kSequenceLength; i++) {
-    std::cout << rng() << "\n";
-  }
-  return 0;
-}
diff --git a/absl/status/CMakeLists.txt b/absl/status/CMakeLists.txt
index 4f553867ac05..f05cee5e954d 100644
--- a/absl/status/CMakeLists.txt
+++ b/absl/status/CMakeLists.txt
@@ -41,7 +41,7 @@ absl_cc_library(
 absl_cc_test(
   NAME
     status_test
-  HDRS
+  SRCS
    "status_test.cc"
   COPTS
     ${ABSL_TEST_COPTS}
diff --git a/absl/strings/internal/str_format/checker_test.cc b/absl/strings/internal/str_format/checker_test.cc
index c309e20310a1..ea2a7681a62a 100644
--- a/absl/strings/internal/str_format/checker_test.cc
+++ b/absl/strings/internal/str_format/checker_test.cc
@@ -13,7 +13,7 @@ std::string ConvToString(Conv conv) {
   std::string out;
 #define CONV_SET_CASE(c) \
   if (Contains(conv, Conv::c)) out += #c;
-  ABSL_CONVERSION_CHARS_EXPAND_(CONV_SET_CASE, )
+  ABSL_INTERNAL_CONVERSION_CHARS_EXPAND_(CONV_SET_CASE, )
 #undef CONV_SET_CASE
   if (Contains(conv, Conv::star)) out += "*";
   return out;
diff --git a/absl/strings/internal/str_format/extension.h b/absl/strings/internal/str_format/extension.h
index 16f6c0a4b205..d1665753d182 100644
--- a/absl/strings/internal/str_format/extension.h
+++ b/absl/strings/internal/str_format/extension.h
@@ -137,7 +137,7 @@ struct Flags {
 };
 
 // clang-format off
-#define ABSL_CONVERSION_CHARS_EXPAND_(X_VAL, X_SEP) \
+#define ABSL_INTERNAL_CONVERSION_CHARS_EXPAND_(X_VAL, X_SEP) \
   /* text */ \
   X_VAL(c) X_SEP X_VAL(C) X_SEP X_VAL(s) X_SEP X_VAL(S) X_SEP \
   /* ints */ \
@@ -161,11 +161,11 @@ enum class FormatConversionChar : uint8_t {
 
 inline FormatConversionChar FormatConversionCharFromChar(char c) {
   switch (c) {
-#define X_VAL(id) \
-  case #id[0]:    \
+#define ABSL_INTERNAL_X_VAL(id) \
+  case #id[0]:                  \
     return FormatConversionChar::id;
-    ABSL_CONVERSION_CHARS_EXPAND_(X_VAL, )
-#undef X_VAL
+    ABSL_INTERNAL_CONVERSION_CHARS_EXPAND_(ABSL_INTERNAL_X_VAL, )
+#undef ABSL_INTERNAL_X_VAL
   }
   return FormatConversionChar::kNone;
 }
@@ -240,15 +240,16 @@ inline bool FormatConversionCharIsFloat(FormatConversionChar c) {
 
 inline char FormatConversionCharToChar(FormatConversionChar c) {
   switch (c) {
-#define X_VAL(e)                \
+#define ABSL_INTERNAL_X_VAL(e)  \
   case FormatConversionChar::e: \
     return #e[0];
-#define X_SEP
-    ABSL_CONVERSION_CHARS_EXPAND_(X_VAL, X_SEP)
+#define ABSL_INTERNAL_X_SEP
+    ABSL_INTERNAL_CONVERSION_CHARS_EXPAND_(ABSL_INTERNAL_X_VAL,
+                                           ABSL_INTERNAL_X_SEP)
     case FormatConversionChar::kNone:
       return '\0';
-#undef X_VAL
-#undef X_SEP
+#undef ABSL_INTERNAL_X_VAL
+#undef ABSL_INTERNAL_X_SEP
   }
   return '\0';
 }
@@ -262,11 +263,8 @@ inline std::ostream& operator<<(std::ostream& os, FormatConversionChar v) {
 
 struct FormatConversionSpecImplFriend;
 
-class ConversionSpec {
+class FormatConversionSpec {
  public:
-  // Deprecated (use has_x_flag() instead).
-  Flags flags() const { return flags_; }
-
   // Width and precison are not specified, no flags are set.
   bool is_basic() const { return flags_.basic; }
   bool has_left_flag() const { return flags_.left; }
@@ -275,10 +273,10 @@ class ConversionSpec {
   bool has_alt_flag() const { return flags_.alt; }
   bool has_zero_flag() const { return flags_.zero; }
 
-  FormatConversionChar conv() const {
+  FormatConversionChar conversion_char() const {
     // Keep this field first in the struct . It generates better code when
     // accessing it when ConversionSpec is passed by value in registers.
-    static_assert(offsetof(ConversionSpec, conv_) == 0, "");
+    static_assert(offsetof(FormatConversionSpec, conv_) == 0, "");
     return conv_;
   }
 
@@ -289,6 +287,11 @@ class ConversionSpec {
   // negative value.
   int precision() const { return precision_; }
 
+  // Deprecated (use has_x_flag() instead).
+  Flags flags() const { return flags_; }
+  // Deprecated
+  FormatConversionChar conv() const { return conversion_char(); }
+
  private:
   friend struct str_format_internal::FormatConversionSpecImplFriend;
   FormatConversionChar conv_ = FormatConversionChar::kNone;
@@ -298,46 +301,57 @@ class ConversionSpec {
 };
 
 struct FormatConversionSpecImplFriend final {
-  static void SetFlags(Flags f, ConversionSpec* conv) { conv->flags_ = f; }
-  static void SetConversionChar(FormatConversionChar c, ConversionSpec* conv) {
+  static void SetFlags(Flags f, FormatConversionSpec* conv) {
+    conv->flags_ = f;
+  }
+  static void SetConversionChar(FormatConversionChar c,
+                                FormatConversionSpec* conv) {
     conv->conv_ = c;
   }
-  static void SetWidth(int w, ConversionSpec* conv) { conv->width_ = w; }
-  static void SetPrecision(int p, ConversionSpec* conv) {
+  static void SetWidth(int w, FormatConversionSpec* conv) { conv->width_ = w; }
+  static void SetPrecision(int p, FormatConversionSpec* conv) {
     conv->precision_ = p;
   }
-  static std::string FlagsToString(const ConversionSpec& spec) {
+  static std::string FlagsToString(const FormatConversionSpec& spec) {
     return spec.flags_.ToString();
   }
 };
 
 constexpr uint64_t FormatConversionCharToConvValue(char conv) {
   return
-#define CONV_SET_CASE(c)                                                     \
+#define ABSL_INTERNAL_CHAR_SET_CASE(c)                                       \
   conv == #c[0]                                                              \
       ? (uint64_t{1} << (1 + static_cast<uint8_t>(FormatConversionChar::c))) \
       :
-      ABSL_CONVERSION_CHARS_EXPAND_(CONV_SET_CASE, )
-#undef CONV_SET_CASE
+      ABSL_INTERNAL_CONVERSION_CHARS_EXPAND_(ABSL_INTERNAL_CHAR_SET_CASE, )
+#undef ABSL_INTERNAL_CHAR_SET_CASE
                   conv == '*'
           ? 1
           : 0;
 }
 
-enum class Conv : uint64_t {
-#define CONV_SET_CASE(c) c = FormatConversionCharToConvValue(#c[0]),
-  ABSL_CONVERSION_CHARS_EXPAND_(CONV_SET_CASE, )
-#undef CONV_SET_CASE
+enum class FormatConversionCharSet : uint64_t {
+#define ABSL_INTERNAL_CHAR_SET_CASE(c) \
+  c = FormatConversionCharToConvValue(#c[0]),
+  ABSL_INTERNAL_CONVERSION_CHARS_EXPAND_(ABSL_INTERNAL_CHAR_SET_CASE, )
+#undef ABSL_INTERNAL_CHAR_SET_CASE
 
   // Used for width/precision '*' specification.
-  star = FormatConversionCharToConvValue('*'),
-
+  kStar = FormatConversionCharToConvValue('*'),
   // Some predefined values:
-  integral = d | i | u | o | x | X,
-  floating = a | e | f | g | A | E | F | G,
-  numeric = integral | floating,
-  string = s,
-  pointer = p
+  kIntegral = d | i | u | o | x | X,
+  kFloating = a | e | f | g | A | E | F | G,
+  kNumeric = kIntegral | kFloating,
+  kString = s,
+  kPointer = p,
+
+  // The following are deprecated
+  star = kStar,
+  integral = kIntegral,
+  floating = kFloating,
+  numeric = kNumeric,
+  string = kString,
+  pointer = kPointer
 };
 
 // Type safe OR operator.
@@ -345,36 +359,41 @@ enum class Conv : uint64_t {
 //  1. operator| on enums makes them decay to integers and the result is an
 //     integer. We need the result to stay as an enum.
 //  2. We use "enum class" which would not work even if we accepted the decay.
-constexpr Conv operator|(Conv a, Conv b) {
-  return Conv(static_cast<uint64_t>(a) | static_cast<uint64_t>(b));
+constexpr FormatConversionCharSet operator|(FormatConversionCharSet a,
+                                            FormatConversionCharSet b) {
+  return FormatConversionCharSet(static_cast<uint64_t>(a) |
+                                 static_cast<uint64_t>(b));
 }
 
 // Get a conversion with a single character in it.
-constexpr Conv ConversionCharToConv(char c) {
-  return Conv(FormatConversionCharToConvValue(c));
+constexpr FormatConversionCharSet ConversionCharToConv(char c) {
+  return FormatConversionCharSet(FormatConversionCharToConvValue(c));
 }
 
 // Checks whether `c` exists in `set`.
-constexpr bool Contains(Conv set, char c) {
+constexpr bool Contains(FormatConversionCharSet set, char c) {
   return (static_cast<uint64_t>(set) & FormatConversionCharToConvValue(c)) != 0;
 }
 
 // Checks whether all the characters in `c` are contained in `set`
-constexpr bool Contains(Conv set, Conv c) {
+constexpr bool Contains(FormatConversionCharSet set,
+                        FormatConversionCharSet c) {
   return (static_cast<uint64_t>(set) & static_cast<uint64_t>(c)) ==
          static_cast<uint64_t>(c);
 }
 
 // Return type of the AbslFormatConvert() functions.
-// The Conv template parameter is used to inform the framework of what
-// conversion characters are supported by that AbslFormatConvert routine.
-template <Conv C>
-struct ConvertResult {
-  static constexpr Conv kConv = C;
+// The FormatConversionCharSet template parameter is used to inform the
+// framework of what conversion characters are supported by that
+// AbslFormatConvert routine.
+template <FormatConversionCharSet C>
+struct FormatConvertResult {
+  static constexpr FormatConversionCharSet kConv = C;
   bool value;
 };
-template <Conv C>
-constexpr Conv ConvertResult<C>::kConv;
+
+template <FormatConversionCharSet C>
+constexpr FormatConversionCharSet FormatConvertResult<C>::kConv;
 
 // Return capacity - used, clipped to a minimum of 0.
 inline size_t Excess(size_t used, size_t capacity) {
@@ -383,6 +402,10 @@ inline size_t Excess(size_t used, size_t capacity) {
 
 // Type alias for use during migration.
 using ConversionChar = FormatConversionChar;
+using ConversionSpec = FormatConversionSpec;
+using Conv = FormatConversionCharSet;
+template <FormatConversionCharSet C>
+using ConvertResult = FormatConvertResult<C>;
 
 }  // namespace str_format_internal
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