GCC Code Coverage Report

Directory:	./
File:	googletest/googletest/include/gtest/internal/gtest-port.h
Date:	2026-09-03 21:13:48
	Exec	Total	Coverage
Lines:	8	15	53.3%
Functions:	13	18	72.2%
Branches:	5	10	50.0%
  
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      // Copyright 2005, Google Inc.
    
      // All rights reserved.
    
      //
    
      // Redistribution and use in source and binary forms, with or without
    
      // modification, are permitted provided that the following conditions are
    
      // met:
    
      //
    
      //     * Redistributions of source code must retain the above copyright
    
      // notice, this list of conditions and the following disclaimer.
    
      //     * Redistributions in binary form must reproduce the above
    
      // copyright notice, this list of conditions and the following disclaimer
    
      // in the documentation and/or other materials provided with the
    
      // distribution.
    
      //     * Neither the name of Google Inc. nor the names of its
    
      // contributors may be used to endorse or promote products derived from
    
      // this software without specific prior written permission.
    
      //
    
      // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    
      // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    
      // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    
      // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    
      // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    
      // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    
      // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    
      // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    
      // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    
      // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    
      // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    
      // Low-level types and utilities for porting Google Test to various
    
      // platforms.  All macros ending with _ and symbols defined in an
    
      // internal namespace are subject to change without notice.  Code
    
      // outside Google Test MUST NOT USE THEM DIRECTLY.  Macros that don't
    
      // end with _ are part of Google Test's public API and can be used by
    
      // code outside Google Test.
    
      //
    
      // This file is fundamental to Google Test.  All other Google Test source
    
      // files are expected to #include this.  Therefore, it cannot #include
    
      // any other Google Test header.
    
      // IWYU pragma: private, include "gtest/gtest.h"
    
      // IWYU pragma: friend gtest/.*
    
      // IWYU pragma: friend gmock/.*
    
      #ifndef GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_
    
      #define GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_
    
      // Environment-describing macros
    
      // -----------------------------
    
      //
    
      // Google Test can be used in many different environments.  Macros in
    
      // this section tell Google Test what kind of environment it is being
    
      // used in, such that Google Test can provide environment-specific
    
      // features and implementations.
    
      //
    
      // Google Test tries to automatically detect the properties of its
    
      // environment, so users usually don't need to worry about these
    
      // macros.  However, the automatic detection is not perfect.
    
      // Sometimes it's necessary for a user to define some of the following
    
      // macros in the build script to override Google Test's decisions.
    
      //
    
      // If the user doesn't define a macro in the list, Google Test will
    
      // provide a default definition.  After this header is #included, all
    
      // macros in this list will be defined to either 1 or 0.
    
      //
    
      // Notes to maintainers:
    
      //   - Each macro here is a user-tweakable knob; do not grow the list
    
      //     lightly.
    
      //   - Use #if to key off these macros.  Don't use #ifdef or "#if
    
      //     defined(...)", which will not work as these macros are ALWAYS
    
      //     defined.
    
      //
    
      //   GTEST_HAS_CLONE          - Define it to 1/0 to indicate that clone(2)
    
      //                              is/isn't available.
    
      //   GTEST_HAS_EXCEPTIONS     - Define it to 1/0 to indicate that exceptions
    
      //                              are enabled.
    
      //   GTEST_HAS_POSIX_RE       - Define it to 1/0 to indicate that POSIX regular
    
      //                              expressions are/aren't available.
    
      //   GTEST_HAS_PTHREAD        - Define it to 1/0 to indicate that <pthread.h>
    
      //                              is/isn't available.
    
      //   GTEST_HAS_RTTI           - Define it to 1/0 to indicate that RTTI is/isn't
    
      //                              enabled.
    
      //   GTEST_HAS_STD_WSTRING    - Define it to 1/0 to indicate that
    
      //                              std::wstring does/doesn't work (Google Test can
    
      //                              be used where std::wstring is unavailable).
    
      //   GTEST_HAS_SEH            - Define it to 1/0 to indicate whether the
    
      //                              compiler supports Microsoft's "Structured
    
      //                              Exception Handling".
    
      //   GTEST_HAS_STREAM_REDIRECTION
    
      //                            - Define it to 1/0 to indicate whether the
    
      //                              platform supports I/O stream redirection using
    
      //                              dup() and dup2().
    
      //   GTEST_LINKED_AS_SHARED_LIBRARY
    
      //                            - Define to 1 when compiling tests that use
    
      //                              Google Test as a shared library (known as
    
      //                              DLL on Windows).
    
      //   GTEST_CREATE_SHARED_LIBRARY
    
      //                            - Define to 1 when compiling Google Test itself
    
      //                              as a shared library.
    
      //   GTEST_DEFAULT_DEATH_TEST_STYLE
    
      //                            - The default value of --gtest_death_test_style.
    
      //                              The legacy default has been "fast" in the open
    
      //                              source version since 2008. The recommended value
    
      //                              is "threadsafe", and can be set in
    
      //                              custom/gtest-port.h.
    
      // Platform-indicating macros
    
      // --------------------------
    
      //
    
      // Macros indicating the platform on which Google Test is being used
    
      // (a macro is defined to 1 if compiled on the given platform;
    
      // otherwise UNDEFINED -- it's never defined to 0.).  Google Test
    
      // defines these macros automatically.  Code outside Google Test MUST
    
      // NOT define them.
    
      //
    
      //   GTEST_OS_AIX      - IBM AIX
    
      //   GTEST_OS_CYGWIN   - Cygwin
    
      //   GTEST_OS_DRAGONFLY - DragonFlyBSD
    
      //   GTEST_OS_FREEBSD  - FreeBSD
    
      //   GTEST_OS_FUCHSIA  - Fuchsia
    
      //   GTEST_OS_GNU_HURD - GNU/Hurd
    
      //   GTEST_OS_GNU_KFREEBSD - GNU/kFreeBSD
    
      //   GTEST_OS_HAIKU    - Haiku
    
      //   GTEST_OS_HPUX     - HP-UX
    
      //   GTEST_OS_LINUX    - Linux
    
      //     GTEST_OS_LINUX_ANDROID - Google Android
    
      //   GTEST_OS_MAC      - Mac OS X
    
      //     GTEST_OS_IOS    - iOS
    
      //   GTEST_OS_NACL     - Google Native Client (NaCl)
    
      //   GTEST_OS_NETBSD   - NetBSD
    
      //   GTEST_OS_OPENBSD  - OpenBSD
    
      //   GTEST_OS_OS2      - OS/2
    
      //   GTEST_OS_QNX      - QNX
    
      //   GTEST_OS_SOLARIS  - Sun Solaris
    
      //   GTEST_OS_WINDOWS  - Windows (Desktop, MinGW, or Mobile)
    
      //     GTEST_OS_WINDOWS_DESKTOP  - Windows Desktop
    
      //     GTEST_OS_WINDOWS_MINGW    - MinGW
    
      //     GTEST_OS_WINDOWS_MOBILE   - Windows Mobile
    
      //     GTEST_OS_WINDOWS_PHONE    - Windows Phone
    
      //     GTEST_OS_WINDOWS_RT       - Windows Store App/WinRT
    
      //   GTEST_OS_ZOS      - z/OS
    
      //
    
      // Among the platforms, Cygwin, Linux, Mac OS X, and Windows have the
    
      // most stable support.  Since core members of the Google Test project
    
      // don't have access to other platforms, support for them may be less
    
      // stable.  If you notice any problems on your platform, please notify
    
      // googletestframework@googlegroups.com (patches for fixing them are
    
      // even more welcome!).
    
      //
    
      // It is possible that none of the GTEST_OS_* macros are defined.
    
      // Feature-indicating macros
    
      // -------------------------
    
      //
    
      // Macros indicating which Google Test features are available (a macro
    
      // is defined to 1 if the corresponding feature is supported;
    
      // otherwise UNDEFINED -- it's never defined to 0.).  Google Test
    
      // defines these macros automatically.  Code outside Google Test MUST
    
      // NOT define them.
    
      //
    
      // These macros are public so that portable tests can be written.
    
      // Such tests typically surround code using a feature with an #if
    
      // which controls that code.  For example:
    
      //
    
      // #if GTEST_HAS_DEATH_TEST
    
      //   EXPECT_DEATH(DoSomethingDeadly());
    
      // #endif
    
      //
    
      //   GTEST_HAS_DEATH_TEST   - death tests
    
      //   GTEST_HAS_TYPED_TEST   - typed tests
    
      //   GTEST_HAS_TYPED_TEST_P - type-parameterized tests
    
      //   GTEST_IS_THREADSAFE    - Google Test is thread-safe.
    
      //   GTEST_USES_RE2         - the RE2 regular expression library is used
    
      //   GTEST_USES_POSIX_RE    - enhanced POSIX regex is used. Do not confuse with
    
      //                            GTEST_HAS_POSIX_RE (see above) which users can
    
      //                            define themselves.
    
      //   GTEST_USES_SIMPLE_RE   - our own simple regex is used;
    
      //                            the above RE\b(s) are mutually exclusive.
    
      // Misc public macros
    
      // ------------------
    
      //
    
      //   GTEST_FLAG(flag_name)  - references the variable corresponding to
    
      //                            the given Google Test flag.
    
      // Internal utilities
    
      // ------------------
    
      //
    
      // The following macros and utilities are for Google Test's INTERNAL
    
      // use only.  Code outside Google Test MUST NOT USE THEM DIRECTLY.
    
      //
    
      // Macros for basic C++ coding:
    
      //   GTEST_AMBIGUOUS_ELSE_BLOCKER_ - for disabling a gcc warning.
    
      //   GTEST_ATTRIBUTE_UNUSED_  - declares that a class' instances or a
    
      //                              variable don't have to be used.
    
      //   GTEST_MUST_USE_RESULT_   - declares that a function's result must be used.
    
      //   GTEST_INTENTIONAL_CONST_COND_PUSH_ - start code section where MSVC C4127 is
    
      //                                        suppressed (constant conditional).
    
      //   GTEST_INTENTIONAL_CONST_COND_POP_  - finish code section where MSVC C4127
    
      //                                        is suppressed.
    
      //   GTEST_INTERNAL_HAS_ANY - for enabling UniversalPrinter<std::any> or
    
      //                            UniversalPrinter<absl::any> specializations.
    
      //   GTEST_INTERNAL_HAS_OPTIONAL - for enabling UniversalPrinter<std::optional>
    
      //   or
    
      //                                 UniversalPrinter<absl::optional>
    
      //                                 specializations.
    
      //   GTEST_INTERNAL_HAS_STRING_VIEW - for enabling Matcher<std::string_view> or
    
      //                                    Matcher<absl::string_view>
    
      //                                    specializations.
    
      //   GTEST_INTERNAL_HAS_VARIANT - for enabling UniversalPrinter<std::variant> or
    
      //                                UniversalPrinter<absl::variant>
    
      //                                specializations.
    
      //
    
      // Synchronization:
    
      //   Mutex, MutexLock, ThreadLocal, GetThreadCount()
    
      //                            - synchronization primitives.
    
      //
    
      // Regular expressions:
    
      //   RE             - a simple regular expression class using
    
      //                     1) the RE2 syntax on all platforms when built with RE2
    
      //                        and Abseil as dependencies
    
      //                     2) the POSIX Extended Regular Expression syntax on
    
      //                        UNIX-like platforms,
    
      //                     3) A reduced regular exception syntax on other platforms,
    
      //                        including Windows.
    
      // Logging:
    
      //   GTEST_LOG_()   - logs messages at the specified severity level.
    
      //   LogToStderr()  - directs all log messages to stderr.
    
      //   FlushInfoLog() - flushes informational log messages.
    
      //
    
      // Stdout and stderr capturing:
    
      //   CaptureStdout()     - starts capturing stdout.
    
      //   GetCapturedStdout() - stops capturing stdout and returns the captured
    
      //                         string.
    
      //   CaptureStderr()     - starts capturing stderr.
    
      //   GetCapturedStderr() - stops capturing stderr and returns the captured
    
      //                         string.
    
      //
    
      // Integer types:
    
      //   TypeWithSize   - maps an integer to a int type.
    
      //   TimeInMillis   - integers of known sizes.
    
      //   BiggestInt     - the biggest signed integer type.
    
      //
    
      // Command-line utilities:
    
      //   GetInjectableArgvs() - returns the command line as a vector of strings.
    
      //
    
      // Environment variable utilities:
    
      //   GetEnv()             - gets the value of an environment variable.
    
      //   BoolFromGTestEnv()   - parses a bool environment variable.
    
      //   Int32FromGTestEnv()  - parses an int32_t environment variable.
    
      //   StringFromGTestEnv() - parses a string environment variable.
    
      //
    
      // Deprecation warnings:
    
      //   GTEST_INTERNAL_DEPRECATED(message) - attribute marking a function as
    
      //                                        deprecated; calling a marked function
    
      //                                        should generate a compiler warning
    
      #include <ctype.h>   // for isspace, etc
    
      #include <stddef.h>  // for ptrdiff_t
    
      #include <stdio.h>
    
      #include <stdlib.h>
    
      #include <string.h>
    
      #include <cerrno>
    
      // #include <condition_variable>  // Guarded by GTEST_IS_THREADSAFE below
    
      #include <cstdint>
    
      #include <iostream>
    
      #include <limits>
    
      #include <locale>
    
      #include <memory>
    
      #include <string>
    
      // #include <mutex>  // Guarded by GTEST_IS_THREADSAFE below
    
      #include <tuple>
    
      #include <type_traits>
    
      #include <vector>
    
      #ifndef _WIN32_WCE
    
      #include <sys/stat.h>
    
      #include <sys/types.h>
    
      #endif  // !_WIN32_WCE
    
      #if defined __APPLE__
    
      #include <AvailabilityMacros.h>
    
      #include <TargetConditionals.h>
    
      #endif
    
      #include "gtest/internal/custom/gtest-port.h"
    
      #include "gtest/internal/gtest-port-arch.h"
    
      #if GTEST_HAS_ABSL
    
      #include "absl/flags/declare.h"
    
      #include "absl/flags/flag.h"
    
      #include "absl/flags/reflection.h"
    
      #endif
    
      #if !defined(GTEST_DEV_EMAIL_)
    
      #define GTEST_DEV_EMAIL_ "googletestframework@@googlegroups.com"
    
      #define GTEST_FLAG_PREFIX_ "gtest_"
    
      #define GTEST_FLAG_PREFIX_DASH_ "gtest-"
    
      #define GTEST_FLAG_PREFIX_UPPER_ "GTEST_"
    
      #define GTEST_NAME_ "Google Test"
    
      #define GTEST_PROJECT_URL_ "https://github.com/google/googletest/"
    
      #endif  // !defined(GTEST_DEV_EMAIL_)
    
      #if !defined(GTEST_INIT_GOOGLE_TEST_NAME_)
    
      #define GTEST_INIT_GOOGLE_TEST_NAME_ "testing::InitGoogleTest"
    
      #endif  // !defined(GTEST_INIT_GOOGLE_TEST_NAME_)
    
      // Determines the version of gcc that is used to compile this.
    
      #ifdef __GNUC__
    
      // 40302 means version 4.3.2.
    
      #define GTEST_GCC_VER_ \
    
        (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
    
      #endif  // __GNUC__
    
      // Macros for disabling Microsoft Visual C++ warnings.
    
      //
    
      //   GTEST_DISABLE_MSC_WARNINGS_PUSH_(4800 4385)
    
      //   /* code that triggers warnings C4800 and C4385 */
    
      //   GTEST_DISABLE_MSC_WARNINGS_POP_()
    
      #if defined(_MSC_VER)
    
      #define GTEST_DISABLE_MSC_WARNINGS_PUSH_(warnings) \
    
        __pragma(warning(push)) __pragma(warning(disable : warnings))
    
      #define GTEST_DISABLE_MSC_WARNINGS_POP_() __pragma(warning(pop))
    
      #else
    
      // Not all compilers are MSVC
    
      #define GTEST_DISABLE_MSC_WARNINGS_PUSH_(warnings)
    
      #define GTEST_DISABLE_MSC_WARNINGS_POP_()
    
      #endif
    
      // Clang on Windows does not understand MSVC's pragma warning.
    
      // We need clang-specific way to disable function deprecation warning.
    
      #ifdef __clang__
    
      #define GTEST_DISABLE_MSC_DEPRECATED_PUSH_()                            \
    
        _Pragma("clang diagnostic push")                                      \
    
            _Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"") \
    
                _Pragma("clang diagnostic ignored \"-Wdeprecated-implementations\"")
    
      #define GTEST_DISABLE_MSC_DEPRECATED_POP_() _Pragma("clang diagnostic pop")
    
      #else
    
      #define GTEST_DISABLE_MSC_DEPRECATED_PUSH_() \
    
        GTEST_DISABLE_MSC_WARNINGS_PUSH_(4996)
    
      #define GTEST_DISABLE_MSC_DEPRECATED_POP_() GTEST_DISABLE_MSC_WARNINGS_POP_()
    
      #endif
    
      // Brings in definitions for functions used in the testing::internal::posix
    
      // namespace (read, write, close, chdir, isatty, stat). We do not currently
    
      // use them on Windows Mobile.
    
      #if GTEST_OS_WINDOWS
    
      #if !GTEST_OS_WINDOWS_MOBILE
    
      #include <direct.h>
    
      #include <io.h>
    
      #endif
    
      // In order to avoid having to include <windows.h>, use forward declaration
    
      #if GTEST_OS_WINDOWS_MINGW && !defined(__MINGW64_VERSION_MAJOR)
    
      // MinGW defined _CRITICAL_SECTION and _RTL_CRITICAL_SECTION as two
    
      // separate (equivalent) structs, instead of using typedef
    
      typedef struct _CRITICAL_SECTION GTEST_CRITICAL_SECTION;
    
      #else
    
      // Assume CRITICAL_SECTION is a typedef of _RTL_CRITICAL_SECTION.
    
      // This assumption is verified by
    
      // WindowsTypesTest.CRITICAL_SECTIONIs_RTL_CRITICAL_SECTION.
    
      typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
    
      #endif
    
      #elif GTEST_OS_XTENSA
    
      #include <unistd.h>
    
      // Xtensa toolchains define strcasecmp in the string.h header instead of
    
      // strings.h. string.h is already included.
    
      #else
    
      // This assumes that non-Windows OSes provide unistd.h. For OSes where this
    
      // is not the case, we need to include headers that provide the functions
    
      // mentioned above.
    
      #include <strings.h>
    
      #include <unistd.h>
    
      #endif  // GTEST_OS_WINDOWS
    
      #if GTEST_OS_LINUX_ANDROID
    
      // Used to define __ANDROID_API__ matching the target NDK API level.
    
      #include <android/api-level.h>  // NOLINT
    
      #endif
    
      // Defines this to true if and only if Google Test can use POSIX regular
    
      // expressions.
    
      #ifndef GTEST_HAS_POSIX_RE
    
      #if GTEST_OS_LINUX_ANDROID
    
      // On Android, <regex.h> is only available starting with Gingerbread.
    
      #define GTEST_HAS_POSIX_RE (__ANDROID_API__ >= 9)
    
      #else
    
      #define GTEST_HAS_POSIX_RE (!GTEST_OS_WINDOWS && !GTEST_OS_XTENSA)
    
      #endif
    
      #endif
    
      // Select the regular expression implementation.
    
      #if GTEST_HAS_ABSL
    
      // When using Abseil, RE2 is required.
    
      #include "absl/strings/string_view.h"
    
      #include "re2/re2.h"
    
      #define GTEST_USES_RE2 1
    
      #elif GTEST_HAS_POSIX_RE
    
      #include <regex.h>  // NOLINT
    
      #define GTEST_USES_POSIX_RE 1
    
      #else
    
      // Use our own simple regex implementation.
    
      #define GTEST_USES_SIMPLE_RE 1
    
      #endif
    
      #ifndef GTEST_HAS_EXCEPTIONS
    
      // The user didn't tell us whether exceptions are enabled, so we need
    
      // to figure it out.
    
      #if defined(_MSC_VER) && defined(_CPPUNWIND)
    
      // MSVC defines _CPPUNWIND to 1 if and only if exceptions are enabled.
    
      #define GTEST_HAS_EXCEPTIONS 1
    
      #elif defined(__BORLANDC__)
    
      // C++Builder's implementation of the STL uses the _HAS_EXCEPTIONS
    
      // macro to enable exceptions, so we'll do the same.
    
      // Assumes that exceptions are enabled by default.
    
      #ifndef _HAS_EXCEPTIONS
    
      #define _HAS_EXCEPTIONS 1
    
      #endif  // _HAS_EXCEPTIONS
    
      #define GTEST_HAS_EXCEPTIONS _HAS_EXCEPTIONS
    
      #elif defined(__clang__)
    
      // clang defines __EXCEPTIONS if and only if exceptions are enabled before clang
    
      // 220714, but if and only if cleanups are enabled after that. In Obj-C++ files,
    
      // there can be cleanups for ObjC exceptions which also need cleanups, even if
    
      // C++ exceptions are disabled. clang has __has_feature(cxx_exceptions) which
    
      // checks for C++ exceptions starting at clang r206352, but which checked for
    
      // cleanups prior to that. To reliably check for C++ exception availability with
    
      // clang, check for
    
      // __EXCEPTIONS && __has_feature(cxx_exceptions).
    
      #define GTEST_HAS_EXCEPTIONS (__EXCEPTIONS && __has_feature(cxx_exceptions))
    
      #elif defined(__GNUC__) && __EXCEPTIONS
    
      // gcc defines __EXCEPTIONS to 1 if and only if exceptions are enabled.
    
      #define GTEST_HAS_EXCEPTIONS 1
    
      #elif defined(__SUNPRO_CC)
    
      // Sun Pro CC supports exceptions.  However, there is no compile-time way of
    
      // detecting whether they are enabled or not.  Therefore, we assume that
    
      // they are enabled unless the user tells us otherwise.
    
      #define GTEST_HAS_EXCEPTIONS 1
    
      #elif defined(__IBMCPP__) && __EXCEPTIONS
    
      // xlC defines __EXCEPTIONS to 1 if and only if exceptions are enabled.
    
      #define GTEST_HAS_EXCEPTIONS 1
    
      #elif defined(__HP_aCC)
    
      // Exception handling is in effect by default in HP aCC compiler. It has to
    
      // be turned of by +noeh compiler option if desired.
    
      #define GTEST_HAS_EXCEPTIONS 1
    
      #else
    
      // For other compilers, we assume exceptions are disabled to be
    
      // conservative.
    
      #define GTEST_HAS_EXCEPTIONS 0
    
      #endif  // defined(_MSC_VER) || defined(__BORLANDC__)
    
      #endif  // GTEST_HAS_EXCEPTIONS
    
      #ifndef GTEST_HAS_STD_WSTRING
    
      // The user didn't tell us whether ::std::wstring is available, so we need
    
      // to figure it out.
    
      // Cygwin 1.7 and below doesn't support ::std::wstring.
    
      // Solaris' libc++ doesn't support it either.  Android has
    
      // no support for it at least as recent as Froyo (2.2).
    
      #define GTEST_HAS_STD_WSTRING                                         \
    
        (!(GTEST_OS_LINUX_ANDROID || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS || \
    
           GTEST_OS_HAIKU || GTEST_OS_ESP32 || GTEST_OS_ESP8266 || GTEST_OS_XTENSA))
    
      #endif  // GTEST_HAS_STD_WSTRING
    
      // Determines whether RTTI is available.
    
      #ifndef GTEST_HAS_RTTI
    
      // The user didn't tell us whether RTTI is enabled, so we need to
    
      // figure it out.
    
      #ifdef _MSC_VER
    
      #ifdef _CPPRTTI  // MSVC defines this macro if and only if RTTI is enabled.
    
      #define GTEST_HAS_RTTI 1
    
      #else
    
      #define GTEST_HAS_RTTI 0
    
      #endif
    
      // Starting with version 4.3.2, gcc defines __GXX_RTTI if and only if RTTI is
    
      // enabled.
    
      #elif defined(__GNUC__)
    
      #ifdef __GXX_RTTI
    
      // When building against STLport with the Android NDK and with
    
      // -frtti -fno-exceptions, the build fails at link time with undefined
    
      // references to __cxa_bad_typeid. Note sure if STL or toolchain bug,
    
      // so disable RTTI when detected.
    
      #if GTEST_OS_LINUX_ANDROID && defined(_STLPORT_MAJOR) && !defined(__EXCEPTIONS)
    
      #define GTEST_HAS_RTTI 0
    
      #else
    
      #define GTEST_HAS_RTTI 1
    
      #endif  // GTEST_OS_LINUX_ANDROID && __STLPORT_MAJOR && !__EXCEPTIONS
    
      #else
    
      #define GTEST_HAS_RTTI 0
    
      #endif  // __GXX_RTTI
    
      // Clang defines __GXX_RTTI starting with version 3.0, but its manual recommends
    
      // using has_feature instead. has_feature(cxx_rtti) is supported since 2.7, the
    
      // first version with C++ support.
    
      #elif defined(__clang__)
    
      #define GTEST_HAS_RTTI __has_feature(cxx_rtti)
    
      // Starting with version 9.0 IBM Visual Age defines __RTTI_ALL__ to 1 if
    
      // both the typeid and dynamic_cast features are present.
    
      #elif defined(__IBMCPP__) && (__IBMCPP__ >= 900)
    
      #ifdef __RTTI_ALL__
    
      #define GTEST_HAS_RTTI 1
    
      #else
    
      #define GTEST_HAS_RTTI 0
    
      #endif
    
      #else
    
      // For all other compilers, we assume RTTI is enabled.
    
      #define GTEST_HAS_RTTI 1
    
      #endif  // _MSC_VER
    
      #endif  // GTEST_HAS_RTTI
    
      // It's this header's responsibility to #include <typeinfo> when RTTI
    
      // is enabled.
    
      #if GTEST_HAS_RTTI
    
      #include <typeinfo>
    
      #endif
    
      // Determines whether Google Test can use the pthreads library.
    
      #ifndef GTEST_HAS_PTHREAD
    
      // The user didn't tell us explicitly, so we make reasonable assumptions about
    
      // which platforms have pthreads support.
    
      //
    
      // To disable threading support in Google Test, add -DGTEST_HAS_PTHREAD=0
    
      // to your compiler flags.
    
      #define GTEST_HAS_PTHREAD                                                      \
    
        (GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_HPUX || GTEST_OS_QNX ||          \
    
         GTEST_OS_FREEBSD || GTEST_OS_NACL || GTEST_OS_NETBSD || GTEST_OS_FUCHSIA || \
    
         GTEST_OS_DRAGONFLY || GTEST_OS_GNU_KFREEBSD || GTEST_OS_OPENBSD ||          \
    
         GTEST_OS_HAIKU || GTEST_OS_GNU_HURD)
    
      #endif  // GTEST_HAS_PTHREAD
    
      #if GTEST_HAS_PTHREAD
    
      // gtest-port.h guarantees to #include <pthread.h> when GTEST_HAS_PTHREAD is
    
      // true.
    
      #include <pthread.h>  // NOLINT
    
      // For timespec and nanosleep, used below.
    
      #include <time.h>  // NOLINT
    
      #endif
    
      // Determines whether clone(2) is supported.
    
      // Usually it will only be available on Linux, excluding
    
      // Linux on the Itanium architecture.
    
      // Also see http://linux.die.net/man/2/clone.
    
      #ifndef GTEST_HAS_CLONE
    
      // The user didn't tell us, so we need to figure it out.
    
      #if GTEST_OS_LINUX && !defined(__ia64__)
    
      #if GTEST_OS_LINUX_ANDROID
    
      // On Android, clone() became available at different API levels for each 32-bit
    
      // architecture.
    
      #if defined(__LP64__) || (defined(__arm__) && __ANDROID_API__ >= 9) || \
    
          (defined(__mips__) && __ANDROID_API__ >= 12) ||                    \
    
          (defined(__i386__) && __ANDROID_API__ >= 17)
    
      #define GTEST_HAS_CLONE 1
    
      #else
    
      #define GTEST_HAS_CLONE 0
    
      #endif
    
      #else
    
      #define GTEST_HAS_CLONE 1
    
      #endif
    
      #else
    
      #define GTEST_HAS_CLONE 0
    
      #endif  // GTEST_OS_LINUX && !defined(__ia64__)
    
      #endif  // GTEST_HAS_CLONE
    
      // Determines whether to support stream redirection. This is used to test
    
      // output correctness and to implement death tests.
    
      #ifndef GTEST_HAS_STREAM_REDIRECTION
    
      // By default, we assume that stream redirection is supported on all
    
      // platforms except known mobile ones.
    
      #if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE || \
    
          GTEST_OS_WINDOWS_RT || GTEST_OS_ESP8266 || GTEST_OS_XTENSA
    
      #define GTEST_HAS_STREAM_REDIRECTION 0
    
      #else
    
      #define GTEST_HAS_STREAM_REDIRECTION 1
    
      #endif  // !GTEST_OS_WINDOWS_MOBILE
    
      #endif  // GTEST_HAS_STREAM_REDIRECTION
    
      // Determines whether to support death tests.
    
      // pops up a dialog window that cannot be suppressed programmatically.
    
      #if (GTEST_OS_LINUX || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS ||             \
    
           (GTEST_OS_MAC && !GTEST_OS_IOS) ||                                   \
    
           (GTEST_OS_WINDOWS_DESKTOP && _MSC_VER) || GTEST_OS_WINDOWS_MINGW ||  \
    
           GTEST_OS_AIX || GTEST_OS_HPUX || GTEST_OS_OPENBSD || GTEST_OS_QNX || \
    
           GTEST_OS_FREEBSD || GTEST_OS_NETBSD || GTEST_OS_FUCHSIA ||           \
    
           GTEST_OS_DRAGONFLY || GTEST_OS_GNU_KFREEBSD || GTEST_OS_HAIKU ||     \
    
           GTEST_OS_GNU_HURD)
    
      #define GTEST_HAS_DEATH_TEST 1
    
      #endif
    
      // Determines whether to support type-driven tests.
    
      // Typed tests need <typeinfo> and variadic macros, which GCC, VC++ 8.0,
    
      // Sun Pro CC, IBM Visual Age, and HP aCC support.
    
      #if defined(__GNUC__) || defined(_MSC_VER) || defined(__SUNPRO_CC) || \
    
          defined(__IBMCPP__) || defined(__HP_aCC)
    
      #define GTEST_HAS_TYPED_TEST 1
    
      #define GTEST_HAS_TYPED_TEST_P 1
    
      #endif
    
      // Determines whether the system compiler uses UTF-16 for encoding wide strings.
    
      #define GTEST_WIDE_STRING_USES_UTF16_ \
    
        (GTEST_OS_WINDOWS || GTEST_OS_CYGWIN || GTEST_OS_AIX || GTEST_OS_OS2)
    
      // Determines whether test results can be streamed to a socket.
    
      #if GTEST_OS_LINUX || GTEST_OS_GNU_KFREEBSD || GTEST_OS_DRAGONFLY || \
    
          GTEST_OS_FREEBSD || GTEST_OS_NETBSD || GTEST_OS_OPENBSD ||       \
    
          GTEST_OS_GNU_HURD
    
      #define GTEST_CAN_STREAM_RESULTS_ 1
    
      #endif
    
      // Defines some utility macros.
    
      // The GNU compiler emits a warning if nested "if" statements are followed by
    
      // an "else" statement and braces are not used to explicitly disambiguate the
    
      // "else" binding.  This leads to problems with code like:
    
      //
    
      //   if (gate)
    
      //     ASSERT_*(condition) << "Some message";
    
      //
    
      // The "switch (0) case 0:" idiom is used to suppress this.
    
      #ifdef __INTEL_COMPILER
    
      #define GTEST_AMBIGUOUS_ELSE_BLOCKER_
    
      #else
    
      #define GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
    
        switch (0)                          \
    
        case 0:                             \
    
        default:  // NOLINT
    
      #endif
    
      // Use this annotation at the end of a struct/class definition to
    
      // prevent the compiler from optimizing away instances that are never
    
      // used.  This is useful when all interesting logic happens inside the
    
      // c'tor and / or d'tor.  Example:
    
      //
    
      //   struct Foo {
    
      //     Foo() { ... }
    
      //   } GTEST_ATTRIBUTE_UNUSED_;
    
      //
    
      // Also use it after a variable or parameter declaration to tell the
    
      // compiler the variable/parameter does not have to be used.
    
      #if defined(__GNUC__) && !defined(COMPILER_ICC)
    
      #define GTEST_ATTRIBUTE_UNUSED_ __attribute__((unused))
    
      #elif defined(__clang__)
    
      #if __has_attribute(unused)
    
      #define GTEST_ATTRIBUTE_UNUSED_ __attribute__((unused))
    
      #endif
    
      #endif
    
      #ifndef GTEST_ATTRIBUTE_UNUSED_
    
      #define GTEST_ATTRIBUTE_UNUSED_
    
      #endif
    
      // Use this annotation before a function that takes a printf format string.
    
      #if (defined(__GNUC__) || defined(__clang__)) && !defined(COMPILER_ICC)
    
      #if defined(__MINGW_PRINTF_FORMAT)
    
      // MinGW has two different printf implementations. Ensure the format macro
    
      // matches the selected implementation. See
    
      // https://sourceforge.net/p/mingw-w64/wiki2/gnu%20printf/.
    
      #define GTEST_ATTRIBUTE_PRINTF_(string_index, first_to_check) \
    
        __attribute__((                                             \
    
            __format__(__MINGW_PRINTF_FORMAT, string_index, first_to_check)))
    
      #else
    
      #define GTEST_ATTRIBUTE_PRINTF_(string_index, first_to_check) \
    
        __attribute__((__format__(__printf__, string_index, first_to_check)))
    
      #endif
    
      #else
    
      #define GTEST_ATTRIBUTE_PRINTF_(string_index, first_to_check)
    
      #endif
    
      // Tell the compiler to warn about unused return values for functions declared
    
      // with this macro.  The macro should be used on function declarations
    
      // following the argument list:
    
      //
    
      //   Sprocket* AllocateSprocket() GTEST_MUST_USE_RESULT_;
    
      #if defined(__GNUC__) && !defined(COMPILER_ICC)
    
      #define GTEST_MUST_USE_RESULT_ __attribute__((warn_unused_result))
    
      #else
    
      #define GTEST_MUST_USE_RESULT_
    
      #endif  // __GNUC__ && !COMPILER_ICC
    
      // MS C++ compiler emits warning when a conditional expression is compile time
    
      // constant. In some contexts this warning is false positive and needs to be
    
      // suppressed. Use the following two macros in such cases:
    
      //
    
      // GTEST_INTENTIONAL_CONST_COND_PUSH_()
    
      // while (true) {
    
      // GTEST_INTENTIONAL_CONST_COND_POP_()
    
      // }
    
      #define GTEST_INTENTIONAL_CONST_COND_PUSH_() \
    
        GTEST_DISABLE_MSC_WARNINGS_PUSH_(4127)
    
      #define GTEST_INTENTIONAL_CONST_COND_POP_() GTEST_DISABLE_MSC_WARNINGS_POP_()
    
      // Determine whether the compiler supports Microsoft's Structured Exception
    
      // Handling.  This is supported by several Windows compilers but generally
    
      // does not exist on any other system.
    
      #ifndef GTEST_HAS_SEH
    
      // The user didn't tell us, so we need to figure it out.
    
      #if defined(_MSC_VER) || defined(__BORLANDC__)
    
      // These two compilers are known to support SEH.
    
      #define GTEST_HAS_SEH 1
    
      #else
    
      // Assume no SEH.
    
      #define GTEST_HAS_SEH 0
    
      #endif
    
      #endif  // GTEST_HAS_SEH
    
      #ifndef GTEST_IS_THREADSAFE
    
      #define GTEST_IS_THREADSAFE                                                 \
    
        (GTEST_HAS_MUTEX_AND_THREAD_LOCAL_ ||                                     \
    
         (GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT) || \
    
         GTEST_HAS_PTHREAD)
    
      #endif  // GTEST_IS_THREADSAFE
    
      #if GTEST_IS_THREADSAFE
    
      // Some platforms don't support including these threading related headers.
    
      #include <condition_variable>  // NOLINT
    
      #include <mutex>               // NOLINT
    
      #endif                         // GTEST_IS_THREADSAFE
    
      // GTEST_API_ qualifies all symbols that must be exported. The definitions below
    
      // are guarded by #ifndef to give embedders a chance to define GTEST_API_ in
    
      // gtest/internal/custom/gtest-port.h
    
      #ifndef GTEST_API_
    
      #ifdef _MSC_VER
    
      #if GTEST_LINKED_AS_SHARED_LIBRARY
    
      #define GTEST_API_ __declspec(dllimport)
    
      #elif GTEST_CREATE_SHARED_LIBRARY
    
      #define GTEST_API_ __declspec(dllexport)
    
      #endif
    
      #elif __GNUC__ >= 4 || defined(__clang__)
    
      #define GTEST_API_ __attribute__((visibility("default")))
    
      #endif  // _MSC_VER
    
      #endif  // GTEST_API_
    
      #ifndef GTEST_API_
    
      #define GTEST_API_
    
      #endif  // GTEST_API_
    
      #ifndef GTEST_DEFAULT_DEATH_TEST_STYLE
    
      #define GTEST_DEFAULT_DEATH_TEST_STYLE "fast"
    
      #endif  // GTEST_DEFAULT_DEATH_TEST_STYLE
    
      #ifdef __GNUC__
    
      // Ask the compiler to never inline a given function.
    
      #define GTEST_NO_INLINE_ __attribute__((noinline))
    
      #else
    
      #define GTEST_NO_INLINE_
    
      #endif
    
      #if defined(__clang__)
    
      // Nested ifs to avoid triggering MSVC warning.
    
      #if __has_attribute(disable_tail_calls)
    
      // Ask the compiler not to perform tail call optimization inside
    
      // the marked function.
    
      #define GTEST_NO_TAIL_CALL_ __attribute__((disable_tail_calls))
    
      #endif
    
      #elif __GNUC__
    
      #define GTEST_NO_TAIL_CALL_ \
    
        __attribute__((optimize("no-optimize-sibling-calls")))
    
      #else
    
      #define GTEST_NO_TAIL_CALL_
    
      #endif
    
      // _LIBCPP_VERSION is defined by the libc++ library from the LLVM project.
    
      #if !defined(GTEST_HAS_CXXABI_H_)
    
      #if defined(__GLIBCXX__) || (defined(_LIBCPP_VERSION) && !defined(_MSC_VER))
    
      #define GTEST_HAS_CXXABI_H_ 1
    
      #else
    
      #define GTEST_HAS_CXXABI_H_ 0
    
      #endif
    
      #endif
    
      // A function level attribute to disable checking for use of uninitialized
    
      // memory when built with MemorySanitizer.
    
      #if defined(__clang__)
    
      #if __has_feature(memory_sanitizer)
    
      #define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_ __attribute__((no_sanitize_memory))
    
      #else
    
      #define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_
    
      #endif  // __has_feature(memory_sanitizer)
    
      #else
    
      #define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_
    
      #endif  // __clang__
    
      // A function level attribute to disable AddressSanitizer instrumentation.
    
      #if defined(__clang__)
    
      #if __has_feature(address_sanitizer)
    
      #define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_ \
    
        __attribute__((no_sanitize_address))
    
      #else
    
      #define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
    
      #endif  // __has_feature(address_sanitizer)
    
      #else
    
      #define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
    
      #endif  // __clang__
    
      // A function level attribute to disable HWAddressSanitizer instrumentation.
    
      #if defined(__clang__)
    
      #if __has_feature(hwaddress_sanitizer)
    
      #define GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_ \
    
        __attribute__((no_sanitize("hwaddress")))
    
      #else
    
      #define GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_
    
      #endif  // __has_feature(hwaddress_sanitizer)
    
      #else
    
      #define GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_
    
      #endif  // __clang__
    
      // A function level attribute to disable ThreadSanitizer instrumentation.
    
      #if defined(__clang__)
    
      #if __has_feature(thread_sanitizer)
    
      #define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_ __attribute__((no_sanitize_thread))
    
      #else
    
      #define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_
    
      #endif  // __has_feature(thread_sanitizer)
    
      #else
    
      #define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_
    
      #endif  // __clang__
    
      namespace testing {
    
      class Message;
    
      // Legacy imports for backwards compatibility.
    
      // New code should use std:: names directly.
    
      using std::get;
    
      using std::make_tuple;
    
      using std::tuple;
    
      using std::tuple_element;
    
      using std::tuple_size;
    
      namespace internal {
    
      // A secret type that Google Test users don't know about.  It has no
    
      // definition on purpose.  Therefore it's impossible to create a
    
      // Secret object, which is what we want.
    
      class Secret;
    
      // A helper for suppressing warnings on constant condition.  It just
    
      // returns 'condition'.
    
      GTEST_API_ bool IsTrue(bool condition);
    
      // Defines RE.
    
      #if GTEST_USES_RE2
    
      // This is almost `using RE = ::RE2`, except it is copy-constructible, and it
    
      // needs to disambiguate the `std::string`, `absl::string_view`, and `const
    
      // char*` constructors.
    
      class GTEST_API_ RE {
    
       public:
    
        RE(absl::string_view regex) : regex_(regex) {}                  // NOLINT
    
        RE(const char* regex) : RE(absl::string_view(regex)) {}         // NOLINT
    
        RE(const std::string& regex) : RE(absl::string_view(regex)) {}  // NOLINT
    
        RE(const RE& other) : RE(other.pattern()) {}
    
        const std::string& pattern() const { return regex_.pattern(); }
    
        static bool FullMatch(absl::string_view str, const RE& re) {
    
          return RE2::FullMatch(str, re.regex_);
    
        }
    
        static bool PartialMatch(absl::string_view str, const RE& re) {
    
          return RE2::PartialMatch(str, re.regex_);
    
        }
    
       private:
    
        RE2 regex_;
    
      };
    
      #elif GTEST_USES_POSIX_RE || GTEST_USES_SIMPLE_RE
    
      // A simple C++ wrapper for <regex.h>.  It uses the POSIX Extended
    
      // Regular Expression syntax.
    
      class GTEST_API_ RE {
    
       public:
    
        // A copy constructor is required by the Standard to initialize object
    
        // references from r-values.
    
        RE(const RE& other) { Init(other.pattern()); }
    
        // Constructs an RE from a string.
    
      138
        RE(const ::std::string& regex) { Init(regex.c_str()); }  // NOLINT
    
        RE(const char* regex) { Init(regex); }  // NOLINT
    
        ~RE();
    
        // Returns the string representation of the regex.
    
      ✗
        const char* pattern() const { return pattern_; }
    
        // FullMatch(str, re) returns true if and only if regular expression re
    
        // matches the entire str.
    
        // PartialMatch(str, re) returns true if and only if regular expression re
    
        // matches a substring of str (including str itself).
    
      ✗
        static bool FullMatch(const ::std::string& str, const RE& re) {
    
      ✗
          return FullMatch(str.c_str(), re);
    
        }
    
      138
        static bool PartialMatch(const ::std::string& str, const RE& re) {
    
      138
          return PartialMatch(str.c_str(), re);
    
        }
    
        static bool FullMatch(const char* str, const RE& re);
    
        static bool PartialMatch(const char* str, const RE& re);
    
       private:
    
        void Init(const char* regex);
    
        const char* pattern_;
    
        bool is_valid_;
    
      #if GTEST_USES_POSIX_RE
    
        regex_t full_regex_;     // For FullMatch().
    
        regex_t partial_regex_;  // For PartialMatch().
    
      #else  // GTEST_USES_SIMPLE_RE
    
        const char* full_pattern_;  // For FullMatch();
    
      #endif
    
      };
    
      #endif  // ::testing::internal::RE implementation
    
      // Formats a source file path and a line number as they would appear
    
      // in an error message from the compiler used to compile this code.
    
      GTEST_API_ ::std::string FormatFileLocation(const char* file, int line);
    
      // Formats a file location for compiler-independent XML output.
    
      // Although this function is not platform dependent, we put it next to
    
      // FormatFileLocation in order to contrast the two functions.
    
      GTEST_API_ ::std::string FormatCompilerIndependentFileLocation(const char* file,
    
                                                                     int line);
    
      // Defines logging utilities:
    
      //   GTEST_LOG_(severity) - logs messages at the specified severity level. The
    
      //                          message itself is streamed into the macro.
    
      //   LogToStderr()  - directs all log messages to stderr.
    
      //   FlushInfoLog() - flushes informational log messages.
    
      enum GTestLogSeverity { GTEST_INFO, GTEST_WARNING, GTEST_ERROR, GTEST_FATAL };
    
      // Formats log entry severity, provides a stream object for streaming the
    
      // log message, and terminates the message with a newline when going out of
    
      // scope.
    
      class GTEST_API_ GTestLog {
    
       public:
    
        GTestLog(GTestLogSeverity severity, const char* file, int line);
    
        // Flushes the buffers and, if severity is GTEST_FATAL, aborts the program.
    
        ~GTestLog();
    
      ✗
        ::std::ostream& GetStream() { return ::std::cerr; }
    
       private:
    
        const GTestLogSeverity severity_;
    
        GTestLog(const GTestLog&) = delete;
    
        GTestLog& operator=(const GTestLog&) = delete;
    
      };
    
      #if !defined(GTEST_LOG_)
    
      #define GTEST_LOG_(severity)                                           \
    
        ::testing::internal::GTestLog(::testing::internal::GTEST_##severity, \
    
                                      __FILE__, __LINE__)                    \
    
            .GetStream()
    
      inline void LogToStderr() {}
    
      inline void FlushInfoLog() { fflush(nullptr); }
    
      #endif  // !defined(GTEST_LOG_)
    
      #if !defined(GTEST_CHECK_)
    
      // INTERNAL IMPLEMENTATION - DO NOT USE.
    
      //
    
      // GTEST_CHECK_ is an all-mode assert. It aborts the program if the condition
    
      // is not satisfied.
    
      //  Synopsis:
    
      //    GTEST_CHECK_(boolean_condition);
    
      //     or
    
      //    GTEST_CHECK_(boolean_condition) << "Additional message";
    
      //
    
      //    This checks the condition and if the condition is not satisfied
    
      //    it prints message about the condition violation, including the
    
      //    condition itself, plus additional message streamed into it, if any,
    
      //    and then it aborts the program. It aborts the program irrespective of
    
      //    whether it is built in the debug mode or not.
    
      #define GTEST_CHECK_(condition)               \
    
        GTEST_AMBIGUOUS_ELSE_BLOCKER_               \
    
        if (::testing::internal::IsTrue(condition)) \
    
          ;                                         \
    
        else                                        \
    
          GTEST_LOG_(FATAL) << "Condition " #condition " failed. "
    
      #endif  // !defined(GTEST_CHECK_)
    
      // An all-mode assert to verify that the given POSIX-style function
    
      // call returns 0 (indicating success).  Known limitation: this
    
      // doesn't expand to a balanced 'if' statement, so enclose the macro
    
      // in {} if you need to use it as the only statement in an 'if'
    
      // branch.
    
      #define GTEST_CHECK_POSIX_SUCCESS_(posix_call) \
    
        if (const int gtest_error = (posix_call))    \
    
        GTEST_LOG_(FATAL) << #posix_call << "failed with error " << gtest_error
    
      // Transforms "T" into "const T&" according to standard reference collapsing
    
      // rules (this is only needed as a backport for C++98 compilers that do not
    
      // support reference collapsing). Specifically, it transforms:
    
      //
    
      //   char         ==> const char&
    
      //   const char   ==> const char&
    
      //   char&        ==> char&
    
      //   const char&  ==> const char&
    
      //
    
      // Note that the non-const reference will not have "const" added. This is
    
      // standard, and necessary so that "T" can always bind to "const T&".
    
      template <typename T>
    
      struct ConstRef {
    
        typedef const T& type;
    
      };
    
      template <typename T>
    
      struct ConstRef<T&> {
    
        typedef T& type;
    
      };
    
      // The argument T must depend on some template parameters.
    
      #define GTEST_REFERENCE_TO_CONST_(T) \
    
        typename ::testing::internal::ConstRef<T>::type
    
      // INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
    
      //
    
      // Use ImplicitCast_ as a safe version of static_cast for upcasting in
    
      // the type hierarchy (e.g. casting a Foo* to a SuperclassOfFoo* or a
    
      // const Foo*).  When you use ImplicitCast_, the compiler checks that
    
      // the cast is safe.  Such explicit ImplicitCast_s are necessary in
    
      // surprisingly many situations where C++ demands an exact type match
    
      // instead of an argument type convertible to a target type.
    
      //
    
      // The syntax for using ImplicitCast_ is the same as for static_cast:
    
      //
    
      //   ImplicitCast_<ToType>(expr)
    
      //
    
      // ImplicitCast_ would have been part of the C++ standard library,
    
      // but the proposal was submitted too late.  It will probably make
    
      // its way into the language in the future.
    
      //
    
      // This relatively ugly name is intentional. It prevents clashes with
    
      // similar functions users may have (e.g., implicit_cast). The internal
    
      // namespace alone is not enough because the function can be found by ADL.
    
      template <typename To>
    
      ✗
      inline To ImplicitCast_(To x) {
    
      ✗
        return x;
    
      }
    
      // When you upcast (that is, cast a pointer from type Foo to type
    
      // SuperclassOfFoo), it's fine to use ImplicitCast_<>, since upcasts
    
      // always succeed.  When you downcast (that is, cast a pointer from
    
      // type Foo to type SubclassOfFoo), static_cast<> isn't safe, because
    
      // how do you know the pointer is really of type SubclassOfFoo?  It
    
      // could be a bare Foo, or of type DifferentSubclassOfFoo.  Thus,
    
      // when you downcast, you should use this macro.  In debug mode, we
    
      // use dynamic_cast<> to double-check the downcast is legal (we die
    
      // if it's not).  In normal mode, we do the efficient static_cast<>
    
      // instead.  Thus, it's important to test in debug mode to make sure
    
      // the cast is legal!
    
      //    This is the only place in the code we should use dynamic_cast<>.
    
      // In particular, you SHOULDN'T be using dynamic_cast<> in order to
    
      // do RTTI (eg code like this:
    
      //    if (dynamic_cast<Subclass1>(foo)) HandleASubclass1Object(foo);
    
      //    if (dynamic_cast<Subclass2>(foo)) HandleASubclass2Object(foo);
    
      // You should design the code some other way not to need this.
    
      //
    
      // This relatively ugly name is intentional. It prevents clashes with
    
      // similar functions users may have (e.g., down_cast). The internal
    
      // namespace alone is not enough because the function can be found by ADL.
    
      template <typename To, typename From>  // use like this: DownCast_<T*>(foo);
    
      inline To DownCast_(From* f) {         // so we only accept pointers
    
        // Ensures that To is a sub-type of From *.  This test is here only
    
        // for compile-time type checking, and has no overhead in an
    
        // optimized build at run-time, as it will be optimized away
    
        // completely.
    
        GTEST_INTENTIONAL_CONST_COND_PUSH_()
    
        if (false) {
    
          GTEST_INTENTIONAL_CONST_COND_POP_()
    
          const To to = nullptr;
    
          ::testing::internal::ImplicitCast_<From*>(to);
    
        }
    
      #if GTEST_HAS_RTTI
    
        // RTTI: debug mode only!
    
        GTEST_CHECK_(f == nullptr || dynamic_cast<To>(f) != nullptr);
    
      #endif
    
        return static_cast<To>(f);
    
      }
    
      // Downcasts the pointer of type Base to Derived.
    
      // Derived must be a subclass of Base. The parameter MUST
    
      // point to a class of type Derived, not any subclass of it.
    
      // When RTTI is available, the function performs a runtime
    
      // check to enforce this.
    
      template <class Derived, class Base>
    
      58
      Derived* CheckedDowncastToActualType(Base* base) {
    
      #if GTEST_HAS_RTTI
    
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      58
        GTEST_CHECK_(typeid(*base) == typeid(Derived));
    
      #endif
    
      #if GTEST_HAS_DOWNCAST_
    
        return ::down_cast<Derived*>(base);
    
      #elif GTEST_HAS_RTTI
    
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      58
        return dynamic_cast<Derived*>(base);  // NOLINT
    
      #else
    
        return static_cast<Derived*>(base);  // Poor man's downcast.
    
      #endif
    
      }
    
      #if GTEST_HAS_STREAM_REDIRECTION
    
      // Defines the stderr capturer:
    
      //   CaptureStdout     - starts capturing stdout.
    
      //   GetCapturedStdout - stops capturing stdout and returns the captured string.
    
      //   CaptureStderr     - starts capturing stderr.
    
      //   GetCapturedStderr - stops capturing stderr and returns the captured string.
    
      //
    
      GTEST_API_ void CaptureStdout();
    
      GTEST_API_ std::string GetCapturedStdout();
    
      GTEST_API_ void CaptureStderr();
    
      GTEST_API_ std::string GetCapturedStderr();
    
      #endif  // GTEST_HAS_STREAM_REDIRECTION
    
      // Returns the size (in bytes) of a file.
    
      GTEST_API_ size_t GetFileSize(FILE* file);
    
      // Reads the entire content of a file as a string.
    
      GTEST_API_ std::string ReadEntireFile(FILE* file);
    
      // All command line arguments.
    
      GTEST_API_ std::vector<std::string> GetArgvs();
    
      #if GTEST_HAS_DEATH_TEST
    
      std::vector<std::string> GetInjectableArgvs();
    
      // Deprecated: pass the args vector by value instead.
    
      void SetInjectableArgvs(const std::vector<std::string>* new_argvs);
    
      void SetInjectableArgvs(const std::vector<std::string>& new_argvs);
    
      void ClearInjectableArgvs();
    
      #endif  // GTEST_HAS_DEATH_TEST
    
      // Defines synchronization primitives.
    
      #if GTEST_IS_THREADSAFE
    
      #if GTEST_OS_WINDOWS
    
      // Provides leak-safe Windows kernel handle ownership.
    
      // Used in death tests and in threading support.
    
      class GTEST_API_ AutoHandle {
    
       public:
    
        // Assume that Win32 HANDLE type is equivalent to void*. Doing so allows us to
    
        // avoid including <windows.h> in this header file. Including <windows.h> is
    
        // undesirable because it defines a lot of symbols and macros that tend to
    
        // conflict with client code. This assumption is verified by
    
        // WindowsTypesTest.HANDLEIsVoidStar.
    
        typedef void* Handle;
    
        AutoHandle();
    
        explicit AutoHandle(Handle handle);
    
        ~AutoHandle();
    
        Handle Get() const;
    
        void Reset();
    
        void Reset(Handle handle);
    
       private:
    
        // Returns true if and only if the handle is a valid handle object that can be
    
        // closed.
    
        bool IsCloseable() const;
    
        Handle handle_;
    
        AutoHandle(const AutoHandle&) = delete;
    
        AutoHandle& operator=(const AutoHandle&) = delete;
    
      };
    
      #endif
    
      #if GTEST_HAS_NOTIFICATION_
    
      // Notification has already been imported into the namespace.
    
      // Nothing to do here.
    
      #else
    
      GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
    
      /* class A needs to have dll-interface to be used by clients of class B */)
    
      // Allows a controller thread to pause execution of newly created
    
      // threads until notified.  Instances of this class must be created
    
      // and destroyed in the controller thread.
    
      //
    
      // This class is only for testing Google Test's own constructs. Do not
    
      // use it in user tests, either directly or indirectly.
    
      // TODO(b/203539622): Replace unconditionally with absl::Notification.
    
      class GTEST_API_ Notification {
    
       public:
    
        Notification() : notified_(false) {}
    
        Notification(const Notification&) = delete;
    
        Notification& operator=(const Notification&) = delete;
    
        // Notifies all threads created with this notification to start. Must
    
        // be called from the controller thread.
    
        void Notify() {
    
          std::lock_guard<std::mutex> lock(mu_);
    
          notified_ = true;
    
          cv_.notify_all();
    
        }
    
        // Blocks until the controller thread notifies. Must be called from a test
    
        // thread.
    
        void WaitForNotification() {
    
          std::unique_lock<std::mutex> lock(mu_);
    
          cv_.wait(lock, [this]() { return notified_; });
    
        }
    
       private:
    
        std::mutex mu_;
    
        std::condition_variable cv_;
    
        bool notified_;
    
      };
    
      GTEST_DISABLE_MSC_WARNINGS_POP_()  // 4251
    
      #endif  // GTEST_HAS_NOTIFICATION_
    
      // On MinGW, we can have both GTEST_OS_WINDOWS and GTEST_HAS_PTHREAD
    
      // defined, but we don't want to use MinGW's pthreads implementation, which
    
      // has conformance problems with some versions of the POSIX standard.
    
      #if GTEST_HAS_PTHREAD && !GTEST_OS_WINDOWS_MINGW
    
      // As a C-function, ThreadFuncWithCLinkage cannot be templated itself.
    
      // Consequently, it cannot select a correct instantiation of ThreadWithParam
    
      // in order to call its Run(). Introducing ThreadWithParamBase as a
    
      // non-templated base class for ThreadWithParam allows us to bypass this
    
      // problem.
    
      class ThreadWithParamBase {
    
       public:
    
        virtual ~ThreadWithParamBase() {}
    
        virtual void Run() = 0;
    
      };
    
      // pthread_create() accepts a pointer to a function type with the C linkage.
    
      // According to the Standard (7.5/1), function types with different linkages
    
      // are different even if they are otherwise identical.  Some compilers (for
    
      // example, SunStudio) treat them as different types.  Since class methods
    
      // cannot be defined with C-linkage we need to define a free C-function to
    
      // pass into pthread_create().
    
      extern "C" inline void* ThreadFuncWithCLinkage(void* thread) {
    
        static_cast<ThreadWithParamBase*>(thread)->Run();
    
        return nullptr;
    
      }
    
      // Helper class for testing Google Test's multi-threading constructs.
    
      // To use it, write:
    
      //
    
      //   void ThreadFunc(int param) { /* Do things with param */ }
    
      //   Notification thread_can_start;
    
      //   ...
    
      //   // The thread_can_start parameter is optional; you can supply NULL.
    
      //   ThreadWithParam<int> thread(&ThreadFunc, 5, &thread_can_start);
    
      //   thread_can_start.Notify();
    
      //
    
      // These classes are only for testing Google Test's own constructs. Do
    
      // not use them in user tests, either directly or indirectly.
    
      template <typename T>
    
      class ThreadWithParam : public ThreadWithParamBase {
    
       public:
    
        typedef void UserThreadFunc(T);
    
        ThreadWithParam(UserThreadFunc* func, T param, Notification* thread_can_start)
    
            : func_(func),
    
              param_(param),
    
              thread_can_start_(thread_can_start),
    
              finished_(false) {
    
          ThreadWithParamBase* const base = this;
    
          // The thread can be created only after all fields except thread_
    
          // have been initialized.
    
          GTEST_CHECK_POSIX_SUCCESS_(
    
              pthread_create(&thread_, nullptr, &ThreadFuncWithCLinkage, base));
    
        }
    
        ~ThreadWithParam() override { Join(); }
    
        void Join() {
    
          if (!finished_) {
    
            GTEST_CHECK_POSIX_SUCCESS_(pthread_join(thread_, nullptr));
    
            finished_ = true;
    
          }
    
        }
    
        void Run() override {
    
          if (thread_can_start_ != nullptr) thread_can_start_->WaitForNotification();
    
          func_(param_);
    
        }
    
       private:
    
        UserThreadFunc* const func_;  // User-supplied thread function.
    
        const T param_;  // User-supplied parameter to the thread function.
    
        // When non-NULL, used to block execution until the controller thread
    
        // notifies.
    
        Notification* const thread_can_start_;
    
        bool finished_;  // true if and only if we know that the thread function has
    
                         // finished.
    
        pthread_t thread_;  // The native thread object.
    
        ThreadWithParam(const ThreadWithParam&) = delete;
    
        ThreadWithParam& operator=(const ThreadWithParam&) = delete;
    
      };
    
      #endif  // !GTEST_OS_WINDOWS && GTEST_HAS_PTHREAD ||
    
              // GTEST_HAS_MUTEX_AND_THREAD_LOCAL_
    
      #if GTEST_HAS_MUTEX_AND_THREAD_LOCAL_
    
      // Mutex and ThreadLocal have already been imported into the namespace.
    
      // Nothing to do here.
    
      #elif GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT
    
      // Mutex implements mutex on Windows platforms.  It is used in conjunction
    
      // with class MutexLock:
    
      //
    
      //   Mutex mutex;
    
      //   ...
    
      //   MutexLock lock(&mutex);  // Acquires the mutex and releases it at the
    
      //                            // end of the current scope.
    
      //
    
      // A static Mutex *must* be defined or declared using one of the following
    
      // macros:
    
      //   GTEST_DEFINE_STATIC_MUTEX_(g_some_mutex);
    
      //   GTEST_DECLARE_STATIC_MUTEX_(g_some_mutex);
    
      //
    
      // (A non-static Mutex is defined/declared in the usual way).
    
      class GTEST_API_ Mutex {
    
       public:
    
        enum MutexType { kStatic = 0, kDynamic = 1 };
    
        // We rely on kStaticMutex being 0 as it is to what the linker initializes
    
        // type_ in static mutexes.  critical_section_ will be initialized lazily
    
        // in ThreadSafeLazyInit().
    
        enum StaticConstructorSelector { kStaticMutex = 0 };
    
        // This constructor intentionally does nothing.  It relies on type_ being
    
        // statically initialized to 0 (effectively setting it to kStatic) and on
    
        // ThreadSafeLazyInit() to lazily initialize the rest of the members.
    
        explicit Mutex(StaticConstructorSelector /*dummy*/) {}
    
        Mutex();
    
        ~Mutex();
    
        void Lock();
    
        void Unlock();
    
        // Does nothing if the current thread holds the mutex. Otherwise, crashes
    
        // with high probability.
    
        void AssertHeld();
    
       private:
    
        // Initializes owner_thread_id_ and critical_section_ in static mutexes.
    
        void ThreadSafeLazyInit();
    
        // Per https://blogs.msdn.microsoft.com/oldnewthing/20040223-00/?p=40503,
    
        // we assume that 0 is an invalid value for thread IDs.
    
        unsigned int owner_thread_id_;
    
        // For static mutexes, we rely on these members being initialized to zeros
    
        // by the linker.
    
        MutexType type_;
    
        long critical_section_init_phase_;  // NOLINT
    
        GTEST_CRITICAL_SECTION* critical_section_;
    
        Mutex(const Mutex&) = delete;
    
        Mutex& operator=(const Mutex&) = delete;
    
      };
    
      #define GTEST_DECLARE_STATIC_MUTEX_(mutex) \
    
        extern ::testing::internal::Mutex mutex
    
      #define GTEST_DEFINE_STATIC_MUTEX_(mutex) \
    
        ::testing::internal::Mutex mutex(::testing::internal::Mutex::kStaticMutex)
    
      // We cannot name this class MutexLock because the ctor declaration would
    
      // conflict with a macro named MutexLock, which is defined on some
    
      // platforms. That macro is used as a defensive measure to prevent against
    
      // inadvertent misuses of MutexLock like "MutexLock(&mu)" rather than
    
      // "MutexLock l(&mu)".  Hence the typedef trick below.
    
      class GTestMutexLock {
    
       public:
    
        explicit GTestMutexLock(Mutex* mutex) : mutex_(mutex) { mutex_->Lock(); }
    
        ~GTestMutexLock() { mutex_->Unlock(); }
    
       private:
    
        Mutex* const mutex_;
    
        GTestMutexLock(const GTestMutexLock&) = delete;
    
        GTestMutexLock& operator=(const GTestMutexLock&) = delete;
    
      };
    
      typedef GTestMutexLock MutexLock;
    
      // Base class for ValueHolder<T>.  Allows a caller to hold and delete a value
    
      // without knowing its type.
    
      class ThreadLocalValueHolderBase {
    
       public:
    
        virtual ~ThreadLocalValueHolderBase() {}
    
      };
    
      // Provides a way for a thread to send notifications to a ThreadLocal
    
      // regardless of its parameter type.
    
      class ThreadLocalBase {
    
       public:
    
        // Creates a new ValueHolder<T> object holding a default value passed to
    
        // this ThreadLocal<T>'s constructor and returns it.  It is the caller's
    
        // responsibility not to call this when the ThreadLocal<T> instance already
    
        // has a value on the current thread.
    
        virtual ThreadLocalValueHolderBase* NewValueForCurrentThread() const = 0;
    
       protected:
    
        ThreadLocalBase() {}
    
        virtual ~ThreadLocalBase() {}
    
       private:
    
        ThreadLocalBase(const ThreadLocalBase&) = delete;
    
        ThreadLocalBase& operator=(const ThreadLocalBase&) = delete;
    
      };
    
      // Maps a thread to a set of ThreadLocals that have values instantiated on that
    
      // thread and notifies them when the thread exits.  A ThreadLocal instance is
    
      // expected to persist until all threads it has values on have terminated.
    
      class GTEST_API_ ThreadLocalRegistry {
    
       public:
    
        // Registers thread_local_instance as having value on the current thread.
    
        // Returns a value that can be used to identify the thread from other threads.
    
        static ThreadLocalValueHolderBase* GetValueOnCurrentThread(
    
            const ThreadLocalBase* thread_local_instance);
    
        // Invoked when a ThreadLocal instance is destroyed.
    
        static void OnThreadLocalDestroyed(
    
            const ThreadLocalBase* thread_local_instance);
    
      };
    
      class GTEST_API_ ThreadWithParamBase {
    
       public:
    
        void Join();
    
       protected:
    
        class Runnable {
    
         public:
    
          virtual ~Runnable() {}
    
          virtual void Run() = 0;
    
        };
    
        ThreadWithParamBase(Runnable* runnable, Notification* thread_can_start);
    
        virtual ~ThreadWithParamBase();
    
       private:
    
        AutoHandle thread_;
    
      };
    
      // Helper class for testing Google Test's multi-threading constructs.
    
      template <typename T>
    
      class ThreadWithParam : public ThreadWithParamBase {
    
       public:
    
        typedef void UserThreadFunc(T);
    
        ThreadWithParam(UserThreadFunc* func, T param, Notification* thread_can_start)
    
            : ThreadWithParamBase(new RunnableImpl(func, param), thread_can_start) {}
    
        virtual ~ThreadWithParam() {}
    
       private:
    
        class RunnableImpl : public Runnable {
    
         public:
    
          RunnableImpl(UserThreadFunc* func, T param) : func_(func), param_(param) {}
    
          virtual ~RunnableImpl() {}
    
          virtual void Run() { func_(param_); }
    
         private:
    
          UserThreadFunc* const func_;
    
          const T param_;
    
          RunnableImpl(const RunnableImpl&) = delete;
    
          RunnableImpl& operator=(const RunnableImpl&) = delete;
    
        };
    
        ThreadWithParam(const ThreadWithParam&) = delete;
    
        ThreadWithParam& operator=(const ThreadWithParam&) = delete;
    
      };
    
      // Implements thread-local storage on Windows systems.
    
      //
    
      //   // Thread 1
    
      //   ThreadLocal<int> tl(100);  // 100 is the default value for each thread.
    
      //
    
      //   // Thread 2
    
      //   tl.set(150);  // Changes the value for thread 2 only.
    
      //   EXPECT_EQ(150, tl.get());
    
      //
    
      //   // Thread 1
    
      //   EXPECT_EQ(100, tl.get());  // In thread 1, tl has the original value.
    
      //   tl.set(200);
    
      //   EXPECT_EQ(200, tl.get());
    
      //
    
      // The template type argument T must have a public copy constructor.
    
      // In addition, the default ThreadLocal constructor requires T to have
    
      // a public default constructor.
    
      //
    
      // The users of a TheadLocal instance have to make sure that all but one
    
      // threads (including the main one) using that instance have exited before
    
      // destroying it. Otherwise, the per-thread objects managed for them by the
    
      // ThreadLocal instance are not guaranteed to be destroyed on all platforms.
    
      //
    
      // Google Test only uses global ThreadLocal objects.  That means they
    
      // will die after main() has returned.  Therefore, no per-thread
    
      // object managed by Google Test will be leaked as long as all threads
    
      // using Google Test have exited when main() returns.
    
      template <typename T>
    
      class ThreadLocal : public ThreadLocalBase {
    
       public:
    
        ThreadLocal() : default_factory_(new DefaultValueHolderFactory()) {}
    
        explicit ThreadLocal(const T& value)
    
            : default_factory_(new InstanceValueHolderFactory(value)) {}
    
        ~ThreadLocal() override { ThreadLocalRegistry::OnThreadLocalDestroyed(this); }
    
        T* pointer() { return GetOrCreateValue(); }
    
        const T* pointer() const { return GetOrCreateValue(); }
    
        const T& get() const { return *pointer(); }
    
        void set(const T& value) { *pointer() = value; }
    
       private:
    
        // Holds a value of T.  Can be deleted via its base class without the caller
    
        // knowing the type of T.
    
        class ValueHolder : public ThreadLocalValueHolderBase {
    
         public:
    
          ValueHolder() : value_() {}
    
          explicit ValueHolder(const T& value) : value_(value) {}
    
          T* pointer() { return &value_; }
    
         private:
    
          T value_;
    
          ValueHolder(const ValueHolder&) = delete;
    
          ValueHolder& operator=(const ValueHolder&) = delete;
    
        };
    
        T* GetOrCreateValue() const {
    
          return static_cast<ValueHolder*>(
    
                     ThreadLocalRegistry::GetValueOnCurrentThread(this))
    
              ->pointer();
    
        }
    
        ThreadLocalValueHolderBase* NewValueForCurrentThread() const override {
    
          return default_factory_->MakeNewHolder();
    
        }
    
        class ValueHolderFactory {
    
         public:
    
          ValueHolderFactory() {}
    
          virtual ~ValueHolderFactory() {}
    
          virtual ValueHolder* MakeNewHolder() const = 0;
    
         private:
    
          ValueHolderFactory(const ValueHolderFactory&) = delete;
    
          ValueHolderFactory& operator=(const ValueHolderFactory&) = delete;
    
        };
    
        class DefaultValueHolderFactory : public ValueHolderFactory {
    
         public:
    
          DefaultValueHolderFactory() {}
    
          ValueHolder* MakeNewHolder() const override { return new ValueHolder(); }
    
         private:
    
          DefaultValueHolderFactory(const DefaultValueHolderFactory&) = delete;
    
          DefaultValueHolderFactory& operator=(const DefaultValueHolderFactory&) =
    
              delete;
    
        };
    
        class InstanceValueHolderFactory : public ValueHolderFactory {
    
         public:
    
          explicit InstanceValueHolderFactory(const T& value) : value_(value) {}
    
          ValueHolder* MakeNewHolder() const override {
    
            return new ValueHolder(value_);
    
          }
    
         private:
    
          const T value_;  // The value for each thread.
    
          InstanceValueHolderFactory(const InstanceValueHolderFactory&) = delete;
    
          InstanceValueHolderFactory& operator=(const InstanceValueHolderFactory&) =
    
              delete;
    
        };
    
        std::unique_ptr<ValueHolderFactory> default_factory_;
    
        ThreadLocal(const ThreadLocal&) = delete;
    
        ThreadLocal& operator=(const ThreadLocal&) = delete;
    
      };
    
      #elif GTEST_HAS_PTHREAD
    
      // MutexBase and Mutex implement mutex on pthreads-based platforms.
    
      class MutexBase {
    
       public:
    
        // Acquires this mutex.
    
        void Lock() {
    
          GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_lock(&mutex_));
    
          owner_ = pthread_self();
    
          has_owner_ = true;
    
        }
    
        // Releases this mutex.
    
        void Unlock() {
    
          // Since the lock is being released the owner_ field should no longer be
    
          // considered valid. We don't protect writing to has_owner_ here, as it's
    
          // the caller's responsibility to ensure that the current thread holds the
    
          // mutex when this is called.
    
          has_owner_ = false;
    
          GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_unlock(&mutex_));
    
        }
    
        // Does nothing if the current thread holds the mutex. Otherwise, crashes
    
        // with high probability.
    
        void AssertHeld() const {
    
          GTEST_CHECK_(has_owner_ && pthread_equal(owner_, pthread_self()))
    
              << "The current thread is not holding the mutex @" << this;
    
        }
    
        // A static mutex may be used before main() is entered.  It may even
    
        // be used before the dynamic initialization stage.  Therefore we
    
        // must be able to initialize a static mutex object at link time.
    
        // This means MutexBase has to be a POD and its member variables
    
        // have to be public.
    
       public:
    
        pthread_mutex_t mutex_;  // The underlying pthread mutex.
    
        // has_owner_ indicates whether the owner_ field below contains a valid thread
    
        // ID and is therefore safe to inspect (e.g., to use in pthread_equal()). All
    
        // accesses to the owner_ field should be protected by a check of this field.
    
        // An alternative might be to memset() owner_ to all zeros, but there's no
    
        // guarantee that a zero'd pthread_t is necessarily invalid or even different
    
        // from pthread_self().
    
        bool has_owner_;
    
        pthread_t owner_;  // The thread holding the mutex.
    
      };
    
      // Forward-declares a static mutex.
    
      #define GTEST_DECLARE_STATIC_MUTEX_(mutex) \
    
        extern ::testing::internal::MutexBase mutex
    
      // Defines and statically (i.e. at link time) initializes a static mutex.
    
      // The initialization list here does not explicitly initialize each field,
    
      // instead relying on default initialization for the unspecified fields. In
    
      // particular, the owner_ field (a pthread_t) is not explicitly initialized.
    
      // This allows initialization to work whether pthread_t is a scalar or struct.
    
      // The flag -Wmissing-field-initializers must not be specified for this to work.
    
      #define GTEST_DEFINE_STATIC_MUTEX_(mutex) \
    
        ::testing::internal::MutexBase mutex = {PTHREAD_MUTEX_INITIALIZER, false, 0}
    
      // The Mutex class can only be used for mutexes created at runtime. It
    
      // shares its API with MutexBase otherwise.
    
      class Mutex : public MutexBase {
    
       public:
    
        Mutex() {
    
          GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_init(&mutex_, nullptr));
    
          has_owner_ = false;
    
        }
    
        ~Mutex() { GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_destroy(&mutex_)); }
    
       private:
    
        Mutex(const Mutex&) = delete;
    
        Mutex& operator=(const Mutex&) = delete;
    
      };
    
      // We cannot name this class MutexLock because the ctor declaration would
    
      // conflict with a macro named MutexLock, which is defined on some
    
      // platforms. That macro is used as a defensive measure to prevent against
    
      // inadvertent misuses of MutexLock like "MutexLock(&mu)" rather than
    
      // "MutexLock l(&mu)".  Hence the typedef trick below.
    
      class GTestMutexLock {
    
       public:
    
        explicit GTestMutexLock(MutexBase* mutex) : mutex_(mutex) { mutex_->Lock(); }
    
        ~GTestMutexLock() { mutex_->Unlock(); }
    
       private:
    
        MutexBase* const mutex_;
    
        GTestMutexLock(const GTestMutexLock&) = delete;
    
        GTestMutexLock& operator=(const GTestMutexLock&) = delete;
    
      };
    
      typedef GTestMutexLock MutexLock;
    
      // Helpers for ThreadLocal.
    
      // pthread_key_create() requires DeleteThreadLocalValue() to have
    
      // C-linkage.  Therefore it cannot be templatized to access
    
      // ThreadLocal<T>.  Hence the need for class
    
      // ThreadLocalValueHolderBase.
    
      class ThreadLocalValueHolderBase {
    
       public:
    
        virtual ~ThreadLocalValueHolderBase() {}
    
      };
    
      // Called by pthread to delete thread-local data stored by
    
      // pthread_setspecific().
    
      extern "C" inline void DeleteThreadLocalValue(void* value_holder) {
    
        delete static_cast<ThreadLocalValueHolderBase*>(value_holder);
    
      }
    
      // Implements thread-local storage on pthreads-based systems.
    
      template <typename T>
    
      class GTEST_API_ ThreadLocal {
    
       public:
    
        ThreadLocal()
    
            : key_(CreateKey()), default_factory_(new DefaultValueHolderFactory()) {}
    
        explicit ThreadLocal(const T& value)
    
            : key_(CreateKey()),
    
              default_factory_(new InstanceValueHolderFactory(value)) {}
    
        ~ThreadLocal() {
    
          // Destroys the managed object for the current thread, if any.
    
          DeleteThreadLocalValue(pthread_getspecific(key_));
    
          // Releases resources associated with the key.  This will *not*
    
          // delete managed objects for other threads.
    
          GTEST_CHECK_POSIX_SUCCESS_(pthread_key_delete(key_));
    
        }
    
        T* pointer() { return GetOrCreateValue(); }
    
        const T* pointer() const { return GetOrCreateValue(); }
    
        const T& get() const { return *pointer(); }
    
        void set(const T& value) { *pointer() = value; }
    
       private:
    
        // Holds a value of type T.
    
        class ValueHolder : public ThreadLocalValueHolderBase {
    
         public:
    
          ValueHolder() : value_() {}
    
          explicit ValueHolder(const T& value) : value_(value) {}
    
          T* pointer() { return &value_; }
    
         private:
    
          T value_;
    
          ValueHolder(const ValueHolder&) = delete;
    
          ValueHolder& operator=(const ValueHolder&) = delete;
    
        };
    
        static pthread_key_t CreateKey() {
    
          pthread_key_t key;
    
          // When a thread exits, DeleteThreadLocalValue() will be called on
    
          // the object managed for that thread.
    
          GTEST_CHECK_POSIX_SUCCESS_(
    
              pthread_key_create(&key, &DeleteThreadLocalValue));
    
          return key;
    
        }
    
        T* GetOrCreateValue() const {
    
          ThreadLocalValueHolderBase* const holder =
    
              static_cast<ThreadLocalValueHolderBase*>(pthread_getspecific(key_));
    
          if (holder != nullptr) {
    
            return CheckedDowncastToActualType<ValueHolder>(holder)->pointer();
    
          }
    
          ValueHolder* const new_holder = default_factory_->MakeNewHolder();
    
          ThreadLocalValueHolderBase* const holder_base = new_holder;
    
          GTEST_CHECK_POSIX_SUCCESS_(pthread_setspecific(key_, holder_base));
    
          return new_holder->pointer();
    
        }
    
        class ValueHolderFactory {
    
         public:
    
          ValueHolderFactory() {}
    
          virtual ~ValueHolderFactory() {}
    
          virtual ValueHolder* MakeNewHolder() const = 0;
    
         private:
    
          ValueHolderFactory(const ValueHolderFactory&) = delete;
    
          ValueHolderFactory& operator=(const ValueHolderFactory&) = delete;
    
        };
    
        class DefaultValueHolderFactory : public ValueHolderFactory {
    
         public:
    
          DefaultValueHolderFactory() {}
    
          ValueHolder* MakeNewHolder() const override { return new ValueHolder(); }
    
         private:
    
          DefaultValueHolderFactory(const DefaultValueHolderFactory&) = delete;
    
          DefaultValueHolderFactory& operator=(const DefaultValueHolderFactory&) =
    
              delete;
    
        };
    
        class InstanceValueHolderFactory : public ValueHolderFactory {
    
         public:
    
          explicit InstanceValueHolderFactory(const T& value) : value_(value) {}
    
          ValueHolder* MakeNewHolder() const override {
    
            return new ValueHolder(value_);
    
          }
    
         private:
    
          const T value_;  // The value for each thread.
    
          InstanceValueHolderFactory(const InstanceValueHolderFactory&) = delete;
    
          InstanceValueHolderFactory& operator=(const InstanceValueHolderFactory&) =
    
              delete;
    
        };
    
        // A key pthreads uses for looking up per-thread values.
    
        const pthread_key_t key_;
    
        std::unique_ptr<ValueHolderFactory> default_factory_;
    
        ThreadLocal(const ThreadLocal&) = delete;
    
        ThreadLocal& operator=(const ThreadLocal&) = delete;
    
      };
    
      #endif  // GTEST_HAS_MUTEX_AND_THREAD_LOCAL_
    
      #else  // GTEST_IS_THREADSAFE
    
      // A dummy implementation of synchronization primitives (mutex, lock,
    
      // and thread-local variable).  Necessary for compiling Google Test where
    
      // mutex is not supported - using Google Test in multiple threads is not
    
      // supported on such platforms.
    
      class Mutex {
    
       public:
    
        Mutex() {}
    
        void Lock() {}
    
        void Unlock() {}
    
        void AssertHeld() const {}
    
      };
    
      #define GTEST_DECLARE_STATIC_MUTEX_(mutex) \
    
        extern ::testing::internal::Mutex mutex
    
      #define GTEST_DEFINE_STATIC_MUTEX_(mutex) ::testing::internal::Mutex mutex
    
      // We cannot name this class MutexLock because the ctor declaration would
    
      // conflict with a macro named MutexLock, which is defined on some
    
      // platforms. That macro is used as a defensive measure to prevent against
    
      // inadvertent misuses of MutexLock like "MutexLock(&mu)" rather than
    
      // "MutexLock l(&mu)".  Hence the typedef trick below.
    
      class GTestMutexLock {
    
       public:
    
        explicit GTestMutexLock(Mutex*) {}  // NOLINT
    
      };
    
      typedef GTestMutexLock MutexLock;
    
      template <typename T>
    
      class GTEST_API_ ThreadLocal {
    
       public:
    
        ThreadLocal() : value_() {}
    
        explicit ThreadLocal(const T& value) : value_(value) {}
    
        T* pointer() { return &value_; }
    
        const T* pointer() const { return &value_; }
    
        const T& get() const { return value_; }
    
        void set(const T& value) { value_ = value; }
    
       private:
    
        T value_;
    
      };
    
      #endif  // GTEST_IS_THREADSAFE
    
      // Returns the number of threads running in the process, or 0 to indicate that
    
      // we cannot detect it.
    
      GTEST_API_ size_t GetThreadCount();
    
      #if GTEST_OS_WINDOWS
    
      #define GTEST_PATH_SEP_ "\\"
    
      #define GTEST_HAS_ALT_PATH_SEP_ 1
    
      #else
    
      #define GTEST_PATH_SEP_ "/"
    
      #define GTEST_HAS_ALT_PATH_SEP_ 0
    
      #endif  // GTEST_OS_WINDOWS
    
      // Utilities for char.
    
      // isspace(int ch) and friends accept an unsigned char or EOF.  char
    
      // may be signed, depending on the compiler (or compiler flags).
    
      // Therefore we need to cast a char to unsigned char before calling
    
      // isspace(), etc.
    
      inline bool IsAlpha(char ch) {
    
        return isalpha(static_cast<unsigned char>(ch)) != 0;
    
      }
    
      19
      inline bool IsAlNum(char ch) {
    
      19
        return isalnum(static_cast<unsigned char>(ch)) != 0;
    
      }
    
      inline bool IsDigit(char ch) {
    
        return isdigit(static_cast<unsigned char>(ch)) != 0;
    
      }
    
      inline bool IsLower(char ch) {
    
        return islower(static_cast<unsigned char>(ch)) != 0;
    
      }
    
      inline bool IsSpace(char ch) {
    
        return isspace(static_cast<unsigned char>(ch)) != 0;
    
      }
    
      inline bool IsUpper(char ch) {
    
        return isupper(static_cast<unsigned char>(ch)) != 0;
    
      }
    
      inline bool IsXDigit(char ch) {
    
        return isxdigit(static_cast<unsigned char>(ch)) != 0;
    
      }
    
      #ifdef __cpp_char8_t
    
      inline bool IsXDigit(char8_t ch) {
    
        return isxdigit(static_cast<unsigned char>(ch)) != 0;
    
      }
    
      #endif
    
      inline bool IsXDigit(char16_t ch) {
    
        const unsigned char low_byte = static_cast<unsigned char>(ch);
    
        return ch == low_byte && isxdigit(low_byte) != 0;
    
      }
    
      inline bool IsXDigit(char32_t ch) {
    
        const unsigned char low_byte = static_cast<unsigned char>(ch);
    
        return ch == low_byte && isxdigit(low_byte) != 0;
    
      }
    
      inline bool IsXDigit(wchar_t ch) {
    
        const unsigned char low_byte = static_cast<unsigned char>(ch);
    
        return ch == low_byte && isxdigit(low_byte) != 0;
    
      }
    
      inline char ToLower(char ch) {
    
        return static_cast<char>(tolower(static_cast<unsigned char>(ch)));
    
      }
    
      inline char ToUpper(char ch) {
    
        return static_cast<char>(toupper(static_cast<unsigned char>(ch)));
    
      }
    
      inline std::string StripTrailingSpaces(std::string str) {
    
        std::string::iterator it = str.end();
    
        while (it != str.begin() && IsSpace(*--it)) it = str.erase(it);
    
        return str;
    
      }
    
      // The testing::internal::posix namespace holds wrappers for common
    
      // POSIX functions.  These wrappers hide the differences between
    
      // Windows/MSVC and POSIX systems.  Since some compilers define these
    
      // standard functions as macros, the wrapper cannot have the same name
    
      // as the wrapped function.
    
      namespace posix {
    
      // Functions with a different name on Windows.
    
      #if GTEST_OS_WINDOWS
    
      typedef struct _stat StatStruct;
    
      #ifdef __BORLANDC__
    
      inline int DoIsATTY(int fd) { return isatty(fd); }
    
      inline int StrCaseCmp(const char* s1, const char* s2) {
    
        return stricmp(s1, s2);
    
      }
    
      inline char* StrDup(const char* src) { return strdup(src); }
    
      #else  // !__BORLANDC__
    
      #if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_ZOS || GTEST_OS_IOS || \
    
          GTEST_OS_WINDOWS_PHONE || GTEST_OS_WINDOWS_RT || defined(ESP_PLATFORM)
    
      inline int DoIsATTY(int /* fd */) { return 0; }
    
      #else
    
      inline int DoIsATTY(int fd) { return _isatty(fd); }
    
      #endif  // GTEST_OS_WINDOWS_MOBILE
    
      inline int StrCaseCmp(const char* s1, const char* s2) {
    
        return _stricmp(s1, s2);
    
      }
    
      inline char* StrDup(const char* src) { return _strdup(src); }
    
      #endif  // __BORLANDC__
    
      #if GTEST_OS_WINDOWS_MOBILE
    
      inline int FileNo(FILE* file) { return reinterpret_cast<int>(_fileno(file)); }
    
      // Stat(), RmDir(), and IsDir() are not needed on Windows CE at this
    
      // time and thus not defined there.
    
      #else
    
      inline int FileNo(FILE* file) { return _fileno(file); }
    
      inline int Stat(const char* path, StatStruct* buf) { return _stat(path, buf); }
    
      inline int RmDir(const char* dir) { return _rmdir(dir); }
    
      inline bool IsDir(const StatStruct& st) { return (_S_IFDIR & st.st_mode) != 0; }
    
      #endif  // GTEST_OS_WINDOWS_MOBILE
    
      #elif GTEST_OS_ESP8266
    
      typedef struct stat StatStruct;
    
      inline int FileNo(FILE* file) { return fileno(file); }
    
      inline int DoIsATTY(int fd) { return isatty(fd); }
    
      inline int Stat(const char* path, StatStruct* buf) {
    
        // stat function not implemented on ESP8266
    
        return 0;
    
      }
    
      inline int StrCaseCmp(const char* s1, const char* s2) {
    
        return strcasecmp(s1, s2);
    
      }
    
      inline char* StrDup(const char* src) { return strdup(src); }
    
      inline int RmDir(const char* dir) { return rmdir(dir); }
    
      inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); }
    
      #else
    
      typedef struct stat StatStruct;
    
      inline int FileNo(FILE* file) { return fileno(file); }
    
      inline int DoIsATTY(int fd) { return isatty(fd); }
    
      inline int Stat(const char* path, StatStruct* buf) { return stat(path, buf); }
    
      inline int StrCaseCmp(const char* s1, const char* s2) {
    
        return strcasecmp(s1, s2);
    
      }
    
      inline char* StrDup(const char* src) { return strdup(src); }
    
      inline int RmDir(const char* dir) { return rmdir(dir); }
    
      inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); }
    
      #endif  // GTEST_OS_WINDOWS
    
      inline int IsATTY(int fd) {
    
        // DoIsATTY might change errno (for example ENOTTY in case you redirect stdout
    
        // to a file on Linux), which is unexpected, so save the previous value, and
    
        // restore it after the call.
    
        int savedErrno = errno;
    
        int isAttyValue = DoIsATTY(fd);
    
        errno = savedErrno;
    
        return isAttyValue;
    
      }
    
      // Functions deprecated by MSVC 8.0.
    
      GTEST_DISABLE_MSC_DEPRECATED_PUSH_()
    
      // ChDir(), FReopen(), FDOpen(), Read(), Write(), Close(), and
    
      // StrError() aren't needed on Windows CE at this time and thus not
    
      // defined there.
    
      #if !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_WINDOWS_PHONE && \
    
          !GTEST_OS_WINDOWS_RT && !GTEST_OS_ESP8266 && !GTEST_OS_XTENSA
    
      inline int ChDir(const char* dir) { return chdir(dir); }
    
      #endif
    
      inline FILE* FOpen(const char* path, const char* mode) {
    
      #if GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MINGW
    
        struct wchar_codecvt : public std::codecvt<wchar_t, char, std::mbstate_t> {};
    
        std::wstring_convert<wchar_codecvt> converter;
    
        std::wstring wide_path = converter.from_bytes(path);
    
        std::wstring wide_mode = converter.from_bytes(mode);
    
        return _wfopen(wide_path.c_str(), wide_mode.c_str());
    
      #else   // GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MINGW
    
        return fopen(path, mode);
    
      #endif  // GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MINGW
    
      }
    
      #if !GTEST_OS_WINDOWS_MOBILE
    
      inline FILE* FReopen(const char* path, const char* mode, FILE* stream) {
    
        return freopen(path, mode, stream);
    
      }
    
      inline FILE* FDOpen(int fd, const char* mode) { return fdopen(fd, mode); }
    
      #endif
    
      inline int FClose(FILE* fp) { return fclose(fp); }
    
      #if !GTEST_OS_WINDOWS_MOBILE
    
      inline int Read(int fd, void* buf, unsigned int count) {
    
        return static_cast<int>(read(fd, buf, count));
    
      }
    
      inline int Write(int fd, const void* buf, unsigned int count) {
    
        return static_cast<int>(write(fd, buf, count));
    
      }
    
      inline int Close(int fd) { return close(fd); }
    
      inline const char* StrError(int errnum) { return strerror(errnum); }
    
      #endif
    
      inline const char* GetEnv(const char* name) {
    
      #if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE || \
    
          GTEST_OS_WINDOWS_RT || GTEST_OS_ESP8266 || GTEST_OS_XTENSA
    
        // We are on an embedded platform, which has no environment variables.
    
        static_cast<void>(name);  // To prevent 'unused argument' warning.
    
        return nullptr;
    
      #elif defined(__BORLANDC__) || defined(__SunOS_5_8) || defined(__SunOS_5_9)
    
        // Environment variables which we programmatically clear will be set to the
    
        // empty string rather than unset (NULL).  Handle that case.
    
        const char* const env = getenv(name);
    
        return (env != nullptr && env[0] != '\0') ? env : nullptr;
    
      #else
    
        return getenv(name);
    
      #endif
    
      }
    
      GTEST_DISABLE_MSC_DEPRECATED_POP_()
    
      #if GTEST_OS_WINDOWS_MOBILE
    
      // Windows CE has no C library. The abort() function is used in
    
      // several places in Google Test. This implementation provides a reasonable
    
      // imitation of standard behaviour.
    
      [[noreturn]] void Abort();
    
      #else
    
      ✗
      [[noreturn]] inline void Abort() { abort(); }
    
      #endif  // GTEST_OS_WINDOWS_MOBILE
    
      }  // namespace posix
    
      // MSVC "deprecates" snprintf and issues warnings wherever it is used.  In
    
      // order to avoid these warnings, we need to use _snprintf or _snprintf_s on
    
      // MSVC-based platforms.  We map the GTEST_SNPRINTF_ macro to the appropriate
    
      // function in order to achieve that.  We use macro definition here because
    
      // snprintf is a variadic function.
    
      #if _MSC_VER && !GTEST_OS_WINDOWS_MOBILE
    
      // MSVC 2005 and above support variadic macros.
    
      #define GTEST_SNPRINTF_(buffer, size, format, ...) \
    
        _snprintf_s(buffer, size, size, format, __VA_ARGS__)
    
      #elif defined(_MSC_VER)
    
      // Windows CE does not define _snprintf_s
    
      #define GTEST_SNPRINTF_ _snprintf
    
      #else
    
      #define GTEST_SNPRINTF_ snprintf
    
      #endif
    
      // The biggest signed integer type the compiler supports.
    
      //
    
      // long long is guaranteed to be at least 64-bits in C++11.
    
      using BiggestInt = long long;  // NOLINT
    
      // The maximum number a BiggestInt can represent.
    
      constexpr BiggestInt kMaxBiggestInt = (std::numeric_limits<BiggestInt>::max)();
    
      // This template class serves as a compile-time function from size to
    
      // type.  It maps a size in bytes to a primitive type with that
    
      // size. e.g.
    
      //
    
      //   TypeWithSize<4>::UInt
    
      //
    
      // is typedef-ed to be unsigned int (unsigned integer made up of 4
    
      // bytes).
    
      //
    
      // Such functionality should belong to STL, but I cannot find it
    
      // there.
    
      //
    
      // Google Test uses this class in the implementation of floating-point
    
      // comparison.
    
      //
    
      // For now it only handles UInt (unsigned int) as that's all Google Test
    
      // needs.  Other types can be easily added in the future if need
    
      // arises.
    
      template <size_t size>
    
      class TypeWithSize {
    
       public:
    
        // This prevents the user from using TypeWithSize<N> with incorrect
    
        // values of N.
    
        using UInt = void;
    
      };
    
      // The specialization for size 4.
    
      template <>
    
      class TypeWithSize<4> {
    
       public:
    
        using Int = std::int32_t;
    
        using UInt = std::uint32_t;
    
      };
    
      // The specialization for size 8.
    
      template <>
    
      class TypeWithSize<8> {
    
       public:
    
        using Int = std::int64_t;
    
        using UInt = std::uint64_t;
    
      };
    
      // Integer types of known sizes.
    
      using TimeInMillis = int64_t;  // Represents time in milliseconds.
    
      // Utilities for command line flags and environment variables.
    
      // Macro for referencing flags.
    
      #if !defined(GTEST_FLAG)
    
      #define GTEST_FLAG_NAME_(name) gtest_##name
    
      #define GTEST_FLAG(name) FLAGS_gtest_##name
    
      #endif  // !defined(GTEST_FLAG)
    
      // Pick a command line flags implementation.
    
      #if GTEST_HAS_ABSL
    
      // Macros for defining flags.
    
      #define GTEST_DEFINE_bool_(name, default_val, doc) \
    
        ABSL_FLAG(bool, GTEST_FLAG_NAME_(name), default_val, doc)
    
      #define GTEST_DEFINE_int32_(name, default_val, doc) \
    
        ABSL_FLAG(int32_t, GTEST_FLAG_NAME_(name), default_val, doc)
    
      #define GTEST_DEFINE_string_(name, default_val, doc) \
    
        ABSL_FLAG(std::string, GTEST_FLAG_NAME_(name), default_val, doc)
    
      // Macros for declaring flags.
    
      #define GTEST_DECLARE_bool_(name) \
    
        ABSL_DECLARE_FLAG(bool, GTEST_FLAG_NAME_(name))
    
      #define GTEST_DECLARE_int32_(name) \
    
        ABSL_DECLARE_FLAG(int32_t, GTEST_FLAG_NAME_(name))
    
      #define GTEST_DECLARE_string_(name) \
    
        ABSL_DECLARE_FLAG(std::string, GTEST_FLAG_NAME_(name))
    
      #define GTEST_FLAG_SAVER_ ::absl::FlagSaver
    
      #define GTEST_FLAG_GET(name) ::absl::GetFlag(GTEST_FLAG(name))
    
      #define GTEST_FLAG_SET(name, value) \
    
        (void)(::absl::SetFlag(&GTEST_FLAG(name), value))
    
      #define GTEST_USE_OWN_FLAGFILE_FLAG_ 0
    
      #else  // GTEST_HAS_ABSL
    
      // Macros for defining flags.
    
      #define GTEST_DEFINE_bool_(name, default_val, doc)  \
    
        namespace testing {                               \
    
        GTEST_API_ bool GTEST_FLAG(name) = (default_val); \
    
        }                                                 \
    
        static_assert(true, "no-op to require trailing semicolon")
    
      #define GTEST_DEFINE_int32_(name, default_val, doc)         \
    
        namespace testing {                                       \
    
        GTEST_API_ std::int32_t GTEST_FLAG(name) = (default_val); \
    
        }                                                         \
    
        static_assert(true, "no-op to require trailing semicolon")
    
      #define GTEST_DEFINE_string_(name, default_val, doc)         \
    
        namespace testing {                                        \
    
        GTEST_API_ ::std::string GTEST_FLAG(name) = (default_val); \
    
        }                                                          \
    
        static_assert(true, "no-op to require trailing semicolon")
    
      // Macros for declaring flags.
    
      #define GTEST_DECLARE_bool_(name)          \
    
        namespace testing {                      \
    
        GTEST_API_ extern bool GTEST_FLAG(name); \
    
        }                                        \
    
        static_assert(true, "no-op to require trailing semicolon")
    
      #define GTEST_DECLARE_int32_(name)                 \
    
        namespace testing {                              \
    
        GTEST_API_ extern std::int32_t GTEST_FLAG(name); \
    
        }                                                \
    
        static_assert(true, "no-op to require trailing semicolon")
    
      #define GTEST_DECLARE_string_(name)                 \
    
        namespace testing {                               \
    
        GTEST_API_ extern ::std::string GTEST_FLAG(name); \
    
        }                                                 \
    
        static_assert(true, "no-op to require trailing semicolon")
    
      #define GTEST_FLAG_SAVER_ ::testing::internal::GTestFlagSaver
    
      #define GTEST_FLAG_GET(name) ::testing::GTEST_FLAG(name)
    
      #define GTEST_FLAG_SET(name, value) (void)(::testing::GTEST_FLAG(name) = value)
    
      #define GTEST_USE_OWN_FLAGFILE_FLAG_ 1
    
      #endif  // GTEST_HAS_ABSL
    
      // Thread annotations
    
      #if !defined(GTEST_EXCLUSIVE_LOCK_REQUIRED_)
    
      #define GTEST_EXCLUSIVE_LOCK_REQUIRED_(locks)
    
      #define GTEST_LOCK_EXCLUDED_(locks)
    
      #endif  // !defined(GTEST_EXCLUSIVE_LOCK_REQUIRED_)
    
      // Parses 'str' for a 32-bit signed integer.  If successful, writes the result
    
      // to *value and returns true; otherwise leaves *value unchanged and returns
    
      // false.
    
      GTEST_API_ bool ParseInt32(const Message& src_text, const char* str,
    
                                 int32_t* value);
    
      // Parses a bool/int32_t/string from the environment variable
    
      // corresponding to the given Google Test flag.
    
      bool BoolFromGTestEnv(const char* flag, bool default_val);
    
      GTEST_API_ int32_t Int32FromGTestEnv(const char* flag, int32_t default_val);
    
      std::string OutputFlagAlsoCheckEnvVar();
    
      const char* StringFromGTestEnv(const char* flag, const char* default_val);
    
      }  // namespace internal
    
      }  // namespace testing
    
      #if !defined(GTEST_INTERNAL_DEPRECATED)
    
      // Internal Macro to mark an API deprecated, for googletest usage only
    
      // Usage: class GTEST_INTERNAL_DEPRECATED(message) MyClass or
    
      // GTEST_INTERNAL_DEPRECATED(message) <return_type> myFunction(); Every usage of
    
      // a deprecated entity will trigger a warning when compiled with
    
      // `-Wdeprecated-declarations` option (clang, gcc, any __GNUC__ compiler).
    
      // For msvc /W3 option will need to be used
    
      // Note that for 'other' compilers this macro evaluates to nothing to prevent
    
      // compilations errors.
    
      #if defined(_MSC_VER)
    
      #define GTEST_INTERNAL_DEPRECATED(message) __declspec(deprecated(message))
    
      #elif defined(__GNUC__)
    
      #define GTEST_INTERNAL_DEPRECATED(message) __attribute__((deprecated(message)))
    
      #else
    
      #define GTEST_INTERNAL_DEPRECATED(message)
    
      #endif
    
      #endif  // !defined(GTEST_INTERNAL_DEPRECATED)
    
      #if GTEST_HAS_ABSL
    
      // Always use absl::any for UniversalPrinter<> specializations if googletest
    
      // is built with absl support.
    
      #define GTEST_INTERNAL_HAS_ANY 1
    
      #include "absl/types/any.h"
    
      namespace testing {
    
      namespace internal {
    
      using Any = ::absl::any;
    
      }  // namespace internal
    
      }  // namespace testing
    
      #else
    
      #ifdef __has_include
    
      #if __has_include(<any>) && __cplusplus >= 201703L
    
      // Otherwise for C++17 and higher use std::any for UniversalPrinter<>
    
      // specializations.
    
      #define GTEST_INTERNAL_HAS_ANY 1
    
      #include <any>
    
      namespace testing {
    
      namespace internal {
    
      using Any = ::std::any;
    
      }  // namespace internal
    
      }  // namespace testing
    
      // The case where absl is configured NOT to alias std::any is not
    
      // supported.
    
      #endif  // __has_include(<any>) && __cplusplus >= 201703L
    
      #endif  // __has_include
    
      #endif  // GTEST_HAS_ABSL
    
      #if GTEST_HAS_ABSL
    
      // Always use absl::optional for UniversalPrinter<> specializations if
    
      // googletest is built with absl support.
    
      #define GTEST_INTERNAL_HAS_OPTIONAL 1
    
      #include "absl/types/optional.h"
    
      namespace testing {
    
      namespace internal {
    
      template <typename T>
    
      using Optional = ::absl::optional<T>;
    
      inline ::absl::nullopt_t Nullopt() { return ::absl::nullopt; }
    
      }  // namespace internal
    
      }  // namespace testing
    
      #else
    
      #ifdef __has_include
    
      #if __has_include(<optional>) && __cplusplus >= 201703L
    
      // Otherwise for C++17 and higher use std::optional for UniversalPrinter<>
    
      // specializations.
    
      #define GTEST_INTERNAL_HAS_OPTIONAL 1
    
      #include <optional>
    
      namespace testing {
    
      namespace internal {
    
      template <typename T>
    
      using Optional = ::std::optional<T>;
    
      inline ::std::nullopt_t Nullopt() { return ::std::nullopt; }
    
      }  // namespace internal
    
      }  // namespace testing
    
      // The case where absl is configured NOT to alias std::optional is not
    
      // supported.
    
      #endif  // __has_include(<optional>) && __cplusplus >= 201703L
    
      #endif  // __has_include
    
      #endif  // GTEST_HAS_ABSL
    
      #if GTEST_HAS_ABSL
    
      // Always use absl::string_view for Matcher<> specializations if googletest
    
      // is built with absl support.
    
      #define GTEST_INTERNAL_HAS_STRING_VIEW 1
    
      #include "absl/strings/string_view.h"
    
      namespace testing {
    
      namespace internal {
    
      using StringView = ::absl::string_view;
    
      }  // namespace internal
    
      }  // namespace testing
    
      #else
    
      #ifdef __has_include
    
      #if __has_include(<string_view>) && __cplusplus >= 201703L
    
      // Otherwise for C++17 and higher use std::string_view for Matcher<>
    
      // specializations.
    
      #define GTEST_INTERNAL_HAS_STRING_VIEW 1
    
      #include <string_view>
    
      namespace testing {
    
      namespace internal {
    
      using StringView = ::std::string_view;
    
      }  // namespace internal
    
      }  // namespace testing
    
      // The case where absl is configured NOT to alias std::string_view is not
    
      // supported.
    
      #endif  // __has_include(<string_view>) && __cplusplus >= 201703L
    
      #endif  // __has_include
    
      #endif  // GTEST_HAS_ABSL
    
      #if GTEST_HAS_ABSL
    
      // Always use absl::variant for UniversalPrinter<> specializations if googletest
    
      // is built with absl support.
    
      #define GTEST_INTERNAL_HAS_VARIANT 1
    
      #include "absl/types/variant.h"
    
      namespace testing {
    
      namespace internal {
    
      template <typename... T>
    
      using Variant = ::absl::variant<T...>;
    
      }  // namespace internal
    
      }  // namespace testing
    
      #else
    
      #ifdef __has_include
    
      #if __has_include(<variant>) && __cplusplus >= 201703L
    
      // Otherwise for C++17 and higher use std::variant for UniversalPrinter<>
    
      // specializations.
    
      #define GTEST_INTERNAL_HAS_VARIANT 1
    
      #include <variant>
    
      namespace testing {
    
      namespace internal {
    
      template <typename... T>
    
      using Variant = ::std::variant<T...>;
    
      }  // namespace internal
    
      }  // namespace testing
    
      // The case where absl is configured NOT to alias std::variant is not supported.
    
      #endif  // __has_include(<variant>) && __cplusplus >= 201703L
    
      #endif  // __has_include
    
      #endif  // GTEST_HAS_ABSL
    
      #endif  // GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_