1// Copyright 2005, Google Inc. 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are 6// met: 7// 8// * Redistributions of source code must retain the above copyright 9// notice, this list of conditions and the following disclaimer. 10// * Redistributions in binary form must reproduce the above 11// copyright notice, this list of conditions and the following disclaimer 12// in the documentation and/or other materials provided with the 13// distribution. 14// * Neither the name of Google Inc. nor the names of its 15// contributors may be used to endorse or promote products derived from 16// this software without specific prior written permission. 17// 18// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29// 30// Authors: wan@google.com (Zhanyong Wan) 31// 32// Low-level types and utilities for porting Google Test to various 33// platforms. They are subject to change without notice. DO NOT USE 34// THEM IN USER CODE. 35 36#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ 37#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ 38 39// The user can define the following macros in the build script to 40// control Google Test's behavior. If the user doesn't define a macro 41// in this list, Google Test will define it. 42// 43// GTEST_HAS_CLONE - Define it to 1/0 to indicate that clone(2) 44// is/isn't available. 45// GTEST_HAS_EXCEPTIONS - Define it to 1/0 to indicate that exceptions 46// are enabled. 47// GTEST_HAS_GLOBAL_STRING - Define it to 1/0 to indicate that ::string 48// is/isn't available (some systems define 49// ::string, which is different to std::string). 50// GTEST_HAS_GLOBAL_WSTRING - Define it to 1/0 to indicate that ::string 51// is/isn't available (some systems define 52// ::wstring, which is different to std::wstring). 53// GTEST_HAS_POSIX_RE - Define it to 1/0 to indicate that POSIX regular 54// expressions are/aren't available. 55// GTEST_HAS_PTHREAD - Define it to 1/0 to indicate that <pthread.h> 56// is/isn't available. 57// GTEST_HAS_RTTI - Define it to 1/0 to indicate that RTTI is/isn't 58// enabled. 59// GTEST_HAS_STD_WSTRING - Define it to 1/0 to indicate that 60// std::wstring does/doesn't work (Google Test can 61// be used where std::wstring is unavailable). 62// GTEST_HAS_TR1_TUPLE - Define it to 1/0 to indicate tr1::tuple 63// is/isn't available. 64// GTEST_HAS_SEH - Define it to 1/0 to indicate whether the 65// compiler supports Microsoft's "Structured 66// Exception Handling". 67// GTEST_HAS_STREAM_REDIRECTION 68// - Define it to 1/0 to indicate whether the 69// platform supports I/O stream redirection using 70// dup() and dup2(). 71// GTEST_USE_OWN_TR1_TUPLE - Define it to 1/0 to indicate whether Google 72// Test's own tr1 tuple implementation should be 73// used. Unused when the user sets 74// GTEST_HAS_TR1_TUPLE to 0. 75// GTEST_LINKED_AS_SHARED_LIBRARY 76// - Define to 1 when compiling tests that use 77// Google Test as a shared library (known as 78// DLL on Windows). 79// GTEST_CREATE_SHARED_LIBRARY 80// - Define to 1 when compiling Google Test itself 81// as a shared library. 82 83// This header defines the following utilities: 84// 85// Macros indicating the current platform (defined to 1 if compiled on 86// the given platform; otherwise undefined): 87// GTEST_OS_AIX - IBM AIX 88// GTEST_OS_CYGWIN - Cygwin 89// GTEST_OS_HPUX - HP-UX 90// GTEST_OS_LINUX - Linux 91// GTEST_OS_LINUX_ANDROID - Google Android 92// GTEST_OS_MAC - Mac OS X 93// GTEST_OS_NACL - Google Native Client (NaCl) 94// GTEST_OS_SOLARIS - Sun Solaris 95// GTEST_OS_SYMBIAN - Symbian 96// GTEST_OS_WINDOWS - Windows (Desktop, MinGW, or Mobile) 97// GTEST_OS_WINDOWS_DESKTOP - Windows Desktop 98// GTEST_OS_WINDOWS_MINGW - MinGW 99// GTEST_OS_WINDOWS_MOBILE - Windows Mobile 100// GTEST_OS_ZOS - z/OS 101// 102// Among the platforms, Cygwin, Linux, Max OS X, and Windows have the 103// most stable support. Since core members of the Google Test project 104// don't have access to other platforms, support for them may be less 105// stable. If you notice any problems on your platform, please notify 106// googletestframework@googlegroups.com (patches for fixing them are 107// even more welcome!). 108// 109// Note that it is possible that none of the GTEST_OS_* macros are defined. 110// 111// Macros indicating available Google Test features (defined to 1 if 112// the corresponding feature is supported; otherwise undefined): 113// GTEST_HAS_COMBINE - the Combine() function (for value-parameterized 114// tests) 115// GTEST_HAS_DEATH_TEST - death tests 116// GTEST_HAS_PARAM_TEST - value-parameterized tests 117// GTEST_HAS_TYPED_TEST - typed tests 118// GTEST_HAS_TYPED_TEST_P - type-parameterized tests 119// GTEST_USES_POSIX_RE - enhanced POSIX regex is used. Do not confuse with 120// GTEST_HAS_POSIX_RE (see above) which users can 121// define themselves. 122// GTEST_USES_SIMPLE_RE - our own simple regex is used; 123// the above two are mutually exclusive. 124// GTEST_CAN_COMPARE_NULL - accepts untyped NULL in EXPECT_EQ(). 125// 126// Macros for basic C++ coding: 127// GTEST_AMBIGUOUS_ELSE_BLOCKER_ - for disabling a gcc warning. 128// GTEST_ATTRIBUTE_UNUSED_ - declares that a class' instances or a 129// variable don't have to be used. 130// GTEST_DISALLOW_ASSIGN_ - disables operator=. 131// GTEST_DISALLOW_COPY_AND_ASSIGN_ - disables copy ctor and operator=. 132// GTEST_MUST_USE_RESULT_ - declares that a function's result must be used. 133// 134// Synchronization: 135// Mutex, MutexLock, ThreadLocal, GetThreadCount() 136// - synchronization primitives. 137// GTEST_IS_THREADSAFE - defined to 1 to indicate that the above 138// synchronization primitives have real implementations 139// and Google Test is thread-safe; or 0 otherwise. 140// 141// Template meta programming: 142// is_pointer - as in TR1; needed on Symbian and IBM XL C/C++ only. 143// IteratorTraits - partial implementation of std::iterator_traits, which 144// is not available in libCstd when compiled with Sun C++. 145// 146// Smart pointers: 147// scoped_ptr - as in TR2. 148// 149// Regular expressions: 150// RE - a simple regular expression class using the POSIX 151// Extended Regular Expression syntax on UNIX-like 152// platforms, or a reduced regular exception syntax on 153// other platforms, including Windows. 154// 155// Logging: 156// GTEST_LOG_() - logs messages at the specified severity level. 157// LogToStderr() - directs all log messages to stderr. 158// FlushInfoLog() - flushes informational log messages. 159// 160// Stdout and stderr capturing: 161// CaptureStdout() - starts capturing stdout. 162// GetCapturedStdout() - stops capturing stdout and returns the captured 163// string. 164// CaptureStderr() - starts capturing stderr. 165// GetCapturedStderr() - stops capturing stderr and returns the captured 166// string. 167// 168// Integer types: 169// TypeWithSize - maps an integer to a int type. 170// Int32, UInt32, Int64, UInt64, TimeInMillis 171// - integers of known sizes. 172// BiggestInt - the biggest signed integer type. 173// 174// Command-line utilities: 175// GTEST_FLAG() - references a flag. 176// GTEST_DECLARE_*() - declares a flag. 177// GTEST_DEFINE_*() - defines a flag. 178// GetArgvs() - returns the command line as a vector of strings. 179// 180// Environment variable utilities: 181// GetEnv() - gets the value of an environment variable. 182// BoolFromGTestEnv() - parses a bool environment variable. 183// Int32FromGTestEnv() - parses an Int32 environment variable. 184// StringFromGTestEnv() - parses a string environment variable. 185 186#include <ctype.h> // for isspace, etc 187#include <stddef.h> // for ptrdiff_t 188#include <stdlib.h> 189#include <stdio.h> 190#include <string.h> 191#ifndef _WIN32_WCE 192# include <sys/types.h> 193# include <sys/stat.h> 194#endif // !_WIN32_WCE 195 196#include <iostream> // NOLINT 197#include <sstream> // NOLINT 198#include <string> // NOLINT 199 200#define GTEST_DEV_EMAIL_ "googletestframework@@googlegroups.com" 201#define GTEST_FLAG_PREFIX_ "gtest_" 202#define GTEST_FLAG_PREFIX_DASH_ "gtest-" 203#define GTEST_FLAG_PREFIX_UPPER_ "GTEST_" 204#define GTEST_NAME_ "Google Test" 205#define GTEST_PROJECT_URL_ "http://code.google.com/p/googletest/" 206 207// Determines the version of gcc that is used to compile this. 208#ifdef __GNUC__ 209// 40302 means version 4.3.2. 210# define GTEST_GCC_VER_ \ 211 (__GNUC__*10000 + __GNUC_MINOR__*100 + __GNUC_PATCHLEVEL__) 212#endif // __GNUC__ 213 214// Determines the platform on which Google Test is compiled. 215#ifdef __CYGWIN__ 216# define GTEST_OS_CYGWIN 1 217#elif defined __SYMBIAN32__ 218# define GTEST_OS_SYMBIAN 1 219#elif defined _WIN32 220# define GTEST_OS_WINDOWS 1 221# ifdef _WIN32_WCE 222# define GTEST_OS_WINDOWS_MOBILE 1 223# elif defined(__MINGW__) || defined(__MINGW32__) 224# define GTEST_OS_WINDOWS_MINGW 1 225# else 226# define GTEST_OS_WINDOWS_DESKTOP 1 227# endif // _WIN32_WCE 228#elif defined __APPLE__ 229# define GTEST_OS_MAC 1 230#elif defined ANDROID 231# define GTEST_OS_LINUX_ANDROID 1 232#elif defined __linux__ 233# define GTEST_OS_LINUX 1 234#elif defined __MVS__ 235# define GTEST_OS_ZOS 1 236#elif defined(__sun) && defined(__SVR4) 237# define GTEST_OS_SOLARIS 1 238#elif defined(_AIX) 239# define GTEST_OS_AIX 1 240#elif defined(__hpux) 241# define GTEST_OS_HPUX 1 242#elif defined __native_client__ 243# define GTEST_OS_NACL 1 244#endif // __CYGWIN__ 245 246// Brings in definitions for functions used in the testing::internal::posix 247// namespace (read, write, close, chdir, isatty, stat). We do not currently 248// use them on Windows Mobile. 249#if !GTEST_OS_WINDOWS 250// This assumes that non-Windows OSes provide unistd.h. For OSes where this 251// is not the case, we need to include headers that provide the functions 252// mentioned above. 253# include <unistd.h> 254# if !GTEST_OS_NACL 255// TODO(vladl@google.com): Remove this condition when Native Client SDK adds 256// strings.h (tracked in 257// http://code.google.com/p/nativeclient/issues/detail?id=1175). 258# include <strings.h> // Native Client doesn't provide strings.h. 259# endif 260#elif !GTEST_OS_WINDOWS_MOBILE 261# include <direct.h> 262# include <io.h> 263#endif 264 265// Defines this to true iff Google Test can use POSIX regular expressions. 266#ifndef GTEST_HAS_POSIX_RE 267# define GTEST_HAS_POSIX_RE (!GTEST_OS_WINDOWS) 268#endif 269 270#if GTEST_HAS_POSIX_RE 271 272// On some platforms, <regex.h> needs someone to define size_t, and 273// won't compile otherwise. We can #include it here as we already 274// included <stdlib.h>, which is guaranteed to define size_t through 275// <stddef.h>. 276# include <regex.h> // NOLINT 277 278# define GTEST_USES_POSIX_RE 1 279 280#elif GTEST_OS_WINDOWS 281 282// <regex.h> is not available on Windows. Use our own simple regex 283// implementation instead. 284# define GTEST_USES_SIMPLE_RE 1 285 286#else 287 288// <regex.h> may not be available on this platform. Use our own 289// simple regex implementation instead. 290# define GTEST_USES_SIMPLE_RE 1 291 292#endif // GTEST_HAS_POSIX_RE 293 294#ifndef GTEST_HAS_EXCEPTIONS 295// The user didn't tell us whether exceptions are enabled, so we need 296// to figure it out. 297# if defined(_MSC_VER) || defined(__BORLANDC__) 298// MSVC's and C++Builder's implementations of the STL use the _HAS_EXCEPTIONS 299// macro to enable exceptions, so we'll do the same. 300// Assumes that exceptions are enabled by default. 301# ifndef _HAS_EXCEPTIONS 302# define _HAS_EXCEPTIONS 1 303# endif // _HAS_EXCEPTIONS 304# define GTEST_HAS_EXCEPTIONS _HAS_EXCEPTIONS 305# elif defined(__GNUC__) && __EXCEPTIONS 306// gcc defines __EXCEPTIONS to 1 iff exceptions are enabled. 307# define GTEST_HAS_EXCEPTIONS 1 308# elif defined(__SUNPRO_CC) 309// Sun Pro CC supports exceptions. However, there is no compile-time way of 310// detecting whether they are enabled or not. Therefore, we assume that 311// they are enabled unless the user tells us otherwise. 312# define GTEST_HAS_EXCEPTIONS 1 313# elif defined(__IBMCPP__) && __EXCEPTIONS 314// xlC defines __EXCEPTIONS to 1 iff exceptions are enabled. 315# define GTEST_HAS_EXCEPTIONS 1 316# elif defined(__HP_aCC) 317// Exception handling is in effect by default in HP aCC compiler. It has to 318// be turned of by +noeh compiler option if desired. 319# define GTEST_HAS_EXCEPTIONS 1 320# else 321// For other compilers, we assume exceptions are disabled to be 322// conservative. 323# define GTEST_HAS_EXCEPTIONS 0 324# endif // defined(_MSC_VER) || defined(__BORLANDC__) 325#endif // GTEST_HAS_EXCEPTIONS 326 327#if !defined(GTEST_HAS_STD_STRING) 328// Even though we don't use this macro any longer, we keep it in case 329// some clients still depend on it. 330# define GTEST_HAS_STD_STRING 1 331#elif !GTEST_HAS_STD_STRING 332// The user told us that ::std::string isn't available. 333# error "Google Test cannot be used where ::std::string isn't available." 334#endif // !defined(GTEST_HAS_STD_STRING) 335 336#ifndef GTEST_HAS_GLOBAL_STRING 337// The user didn't tell us whether ::string is available, so we need 338// to figure it out. 339 340# define GTEST_HAS_GLOBAL_STRING 0 341 342#endif // GTEST_HAS_GLOBAL_STRING 343 344#ifndef GTEST_HAS_STD_WSTRING 345// The user didn't tell us whether ::std::wstring is available, so we need 346// to figure it out. 347// TODO(wan@google.com): uses autoconf to detect whether ::std::wstring 348// is available. 349 350// Cygwin 1.7 and below doesn't support ::std::wstring. 351// Solaris' libc++ doesn't support it either. Android has 352// no support for it at least as recent as Froyo (2.2). 353# define GTEST_HAS_STD_WSTRING \ 354 (!(GTEST_OS_LINUX_ANDROID || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS)) 355 356#endif // GTEST_HAS_STD_WSTRING 357 358#ifndef GTEST_HAS_GLOBAL_WSTRING 359// The user didn't tell us whether ::wstring is available, so we need 360// to figure it out. 361# define GTEST_HAS_GLOBAL_WSTRING \ 362 (GTEST_HAS_STD_WSTRING && GTEST_HAS_GLOBAL_STRING) 363#endif // GTEST_HAS_GLOBAL_WSTRING 364 365// Determines whether RTTI is available. 366#ifndef GTEST_HAS_RTTI 367// The user didn't tell us whether RTTI is enabled, so we need to 368// figure it out. 369 370# ifdef _MSC_VER 371 372# ifdef _CPPRTTI // MSVC defines this macro iff RTTI is enabled. 373# define GTEST_HAS_RTTI 1 374# else 375# define GTEST_HAS_RTTI 0 376# endif 377 378// Starting with version 4.3.2, gcc defines __GXX_RTTI iff RTTI is enabled. 379# elif defined(__GNUC__) && (GTEST_GCC_VER_ >= 40302) 380 381// ANDROID 382// Android uses GCC but does not support RTTI 383#if GTEST_OS_LINUX_ANDROID 384#define GTEST_HAS_RTTI 0 385#else 386# ifdef __GXX_RTTI 387# define GTEST_HAS_RTTI 1 388# else 389# define GTEST_HAS_RTTI 0 390# endif // __GXX_RTTI 391#endif //ANDROID 392 393// Starting with version 9.0 IBM Visual Age defines __RTTI_ALL__ to 1 if 394// both the typeid and dynamic_cast features are present. 395# elif defined(__IBMCPP__) && (__IBMCPP__ >= 900) 396 397# ifdef __RTTI_ALL__ 398# define GTEST_HAS_RTTI 1 399# else 400# define GTEST_HAS_RTTI 0 401# endif 402 403# elif defined(__clang__) 404 405// Android does not support RTTI 406#if GTEST_OS_LINUX_ANDROID 407#define GTEST_HAS_RTTI 0 408#else 409#define GTEST_HAS_RTTI 1 410#endif //ANDROID 411 412# else 413 414// For all other compilers, we assume RTTI is enabled. 415# define GTEST_HAS_RTTI 1 416 417# endif // _MSC_VER 418 419#endif // GTEST_HAS_RTTI 420 421// It's this header's responsibility to #include <typeinfo> when RTTI 422// is enabled. 423#if GTEST_HAS_RTTI 424# include <typeinfo> 425#endif 426 427// Determines whether Google Test can use the pthreads library. 428#ifndef GTEST_HAS_PTHREAD 429// The user didn't tell us explicitly, so we assume pthreads support is 430// available on Linux and Mac. 431// 432// To disable threading support in Google Test, add -DGTEST_HAS_PTHREAD=0 433// to your compiler flags. 434# define GTEST_HAS_PTHREAD (GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_HPUX) 435#endif // GTEST_HAS_PTHREAD 436 437#if GTEST_HAS_PTHREAD 438// gtest-port.h guarantees to #include <pthread.h> when GTEST_HAS_PTHREAD is 439// true. 440# include <pthread.h> // NOLINT 441 442// For timespec and nanosleep, used below. 443# include <time.h> // NOLINT 444#endif 445 446// Determines whether Google Test can use tr1/tuple. You can define 447// this macro to 0 to prevent Google Test from using tuple (any 448// feature depending on tuple with be disabled in this mode). 449#ifndef GTEST_HAS_TR1_TUPLE 450// The user didn't tell us not to do it, so we assume it's OK. 451# define GTEST_HAS_TR1_TUPLE 1 452#endif // GTEST_HAS_TR1_TUPLE 453 454// Determines whether Google Test's own tr1 tuple implementation 455// should be used. 456#ifndef GTEST_USE_OWN_TR1_TUPLE 457// The user didn't tell us, so we need to figure it out. 458 459// We use our own TR1 tuple if we aren't sure the user has an 460// implementation of it already. At this time, GCC 4.0.0+ and MSVC 461// 2010 are the only mainstream compilers that come with a TR1 tuple 462// implementation. NVIDIA's CUDA NVCC compiler pretends to be GCC by 463// defining __GNUC__ and friends, but cannot compile GCC's tuple 464// implementation. MSVC 2008 (9.0) provides TR1 tuple in a 323 MB 465// Feature Pack download, which we cannot assume the user has. 466// ANDROID: added !GTEST_OS_LINUX_ANDROID 467# if (defined(__GNUC__) && !defined(__CUDACC__) && (GTEST_GCC_VER_ >= 40000) && !GTEST_OS_LINUX_ANDROID) \ 468 || _MSC_VER >= 1600 469# define GTEST_USE_OWN_TR1_TUPLE 0 470# else 471# define GTEST_USE_OWN_TR1_TUPLE 1 472# endif 473 474#endif // GTEST_USE_OWN_TR1_TUPLE 475 476// To avoid conditional compilation everywhere, we make it 477// gtest-port.h's responsibility to #include the header implementing 478// tr1/tuple. 479#if GTEST_HAS_TR1_TUPLE 480 481# if GTEST_USE_OWN_TR1_TUPLE 482# include "gtest/internal/gtest-tuple.h" 483# elif GTEST_OS_SYMBIAN 484 485// On Symbian, BOOST_HAS_TR1_TUPLE causes Boost's TR1 tuple library to 486// use STLport's tuple implementation, which unfortunately doesn't 487// work as the copy of STLport distributed with Symbian is incomplete. 488// By making sure BOOST_HAS_TR1_TUPLE is undefined, we force Boost to 489// use its own tuple implementation. 490# ifdef BOOST_HAS_TR1_TUPLE 491# undef BOOST_HAS_TR1_TUPLE 492# endif // BOOST_HAS_TR1_TUPLE 493 494// This prevents <boost/tr1/detail/config.hpp>, which defines 495// BOOST_HAS_TR1_TUPLE, from being #included by Boost's <tuple>. 496# define BOOST_TR1_DETAIL_CONFIG_HPP_INCLUDED 497# include <tuple> 498 499# elif defined(__GNUC__) && (GTEST_GCC_VER_ >= 40000) 500// GCC 4.0+ implements tr1/tuple in the <tr1/tuple> header. This does 501// not conform to the TR1 spec, which requires the header to be <tuple>. 502 503# if !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302 504// Until version 4.3.2, gcc has a bug that causes <tr1/functional>, 505// which is #included by <tr1/tuple>, to not compile when RTTI is 506// disabled. _TR1_FUNCTIONAL is the header guard for 507// <tr1/functional>. Hence the following #define is a hack to prevent 508// <tr1/functional> from being included. 509# define _TR1_FUNCTIONAL 1 510# include <tr1/tuple> 511# undef _TR1_FUNCTIONAL // Allows the user to #include 512 // <tr1/functional> if he chooses to. 513# else 514# include <tr1/tuple> // NOLINT 515# endif // !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302 516 517# else 518// If the compiler is not GCC 4.0+, we assume the user is using a 519// spec-conforming TR1 implementation. 520# include <tuple> // NOLINT 521# endif // GTEST_USE_OWN_TR1_TUPLE 522 523#endif // GTEST_HAS_TR1_TUPLE 524 525// Determines whether clone(2) is supported. 526// Usually it will only be available on Linux, excluding 527// Linux on the Itanium architecture. 528// Also see http://linux.die.net/man/2/clone. 529#ifndef GTEST_HAS_CLONE 530// The user didn't tell us, so we need to figure it out. 531 532# if GTEST_OS_LINUX && !defined(__ia64__) 533# define GTEST_HAS_CLONE 1 534# else 535# define GTEST_HAS_CLONE 0 536# endif // GTEST_OS_LINUX && !defined(__ia64__) 537 538#endif // GTEST_HAS_CLONE 539 540// Determines whether to support stream redirection. This is used to test 541// output correctness and to implement death tests. 542#ifndef GTEST_HAS_STREAM_REDIRECTION 543// By default, we assume that stream redirection is supported on all 544// platforms except known mobile ones. 545# if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_SYMBIAN 546# define GTEST_HAS_STREAM_REDIRECTION 0 547# else 548# define GTEST_HAS_STREAM_REDIRECTION 1 549# endif // !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_SYMBIAN 550#endif // GTEST_HAS_STREAM_REDIRECTION 551 552// Determines whether to support death tests. 553// Google Test does not support death tests for VC 7.1 and earlier as 554// abort() in a VC 7.1 application compiled as GUI in debug config 555// pops up a dialog window that cannot be suppressed programmatically. 556#if (GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS || \ 557 (GTEST_OS_WINDOWS_DESKTOP && _MSC_VER >= 1400) || \ 558 GTEST_OS_WINDOWS_MINGW || GTEST_OS_AIX || GTEST_OS_HPUX || GTEST_OS_LINUX_ANDROID) 559# define GTEST_HAS_DEATH_TEST 1 560# include <vector> // NOLINT 561#endif 562 563// We don't support MSVC 7.1 with exceptions disabled now. Therefore 564// all the compilers we care about are adequate for supporting 565// value-parameterized tests. 566#define GTEST_HAS_PARAM_TEST 1 567 568// Determines whether to support type-driven tests. 569 570// Typed tests need <typeinfo> and variadic macros, which GCC, VC++ 8.0, 571// Sun Pro CC, IBM Visual Age, and HP aCC support. 572// TODO: We should be able to support these on Android but we don't 573// have cxxabi.h when building for the target but we have it for the host. 574// ANDROID: added !defined(GTEST_OS_LINUX_ANDROID) 575#if (defined(__GNUC__) || (_MSC_VER >= 1400) || defined(__SUNPRO_CC) || \ 576 defined(__IBMCPP__) || defined(__HP_aCC)) && !defined(GTEST_OS_LINUX_ANDROID) 577# define GTEST_HAS_TYPED_TEST 1 578# define GTEST_HAS_TYPED_TEST_P 1 579#endif 580 581// Determines whether to support Combine(). This only makes sense when 582// value-parameterized tests are enabled. The implementation doesn't 583// work on Sun Studio since it doesn't understand templated conversion 584// operators. 585#if GTEST_HAS_PARAM_TEST && GTEST_HAS_TR1_TUPLE && !defined(__SUNPRO_CC) 586# define GTEST_HAS_COMBINE 1 587#endif 588 589// Determines whether the system compiler uses UTF-16 for encoding wide strings. 590#define GTEST_WIDE_STRING_USES_UTF16_ \ 591 (GTEST_OS_WINDOWS || GTEST_OS_CYGWIN || GTEST_OS_SYMBIAN || GTEST_OS_AIX) 592 593// Determines whether test results can be streamed to a socket. 594#if GTEST_OS_LINUX 595# define GTEST_CAN_STREAM_RESULTS_ 1 596#endif 597 598// Defines some utility macros. 599 600// The GNU compiler emits a warning if nested "if" statements are followed by 601// an "else" statement and braces are not used to explicitly disambiguate the 602// "else" binding. This leads to problems with code like: 603// 604// if (gate) 605// ASSERT_*(condition) << "Some message"; 606// 607// The "switch (0) case 0:" idiom is used to suppress this. 608#ifdef __INTEL_COMPILER 609# define GTEST_AMBIGUOUS_ELSE_BLOCKER_ 610#else 611# define GTEST_AMBIGUOUS_ELSE_BLOCKER_ switch (0) case 0: default: // NOLINT 612#endif 613 614// Use this annotation at the end of a struct/class definition to 615// prevent the compiler from optimizing away instances that are never 616// used. This is useful when all interesting logic happens inside the 617// c'tor and / or d'tor. Example: 618// 619// struct Foo { 620// Foo() { ... } 621// } GTEST_ATTRIBUTE_UNUSED_; 622// 623// Also use it after a variable or parameter declaration to tell the 624// compiler the variable/parameter does not have to be used. 625#if defined(__GNUC__) && !defined(COMPILER_ICC) 626# define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused)) 627#else 628# define GTEST_ATTRIBUTE_UNUSED_ 629#endif 630 631// A macro to disallow operator= 632// This should be used in the private: declarations for a class. 633#define GTEST_DISALLOW_ASSIGN_(type)\ 634 void operator=(type const &) 635 636// A macro to disallow copy constructor and operator= 637// This should be used in the private: declarations for a class. 638#define GTEST_DISALLOW_COPY_AND_ASSIGN_(type)\ 639 type(type const &);\ 640 GTEST_DISALLOW_ASSIGN_(type) 641 642// Tell the compiler to warn about unused return values for functions declared 643// with this macro. The macro should be used on function declarations 644// following the argument list: 645// 646// Sprocket* AllocateSprocket() GTEST_MUST_USE_RESULT_; 647#if defined(__GNUC__) && (GTEST_GCC_VER_ >= 30400) && !defined(COMPILER_ICC) 648# define GTEST_MUST_USE_RESULT_ __attribute__ ((warn_unused_result)) 649#else 650# define GTEST_MUST_USE_RESULT_ 651#endif // __GNUC__ && (GTEST_GCC_VER_ >= 30400) && !COMPILER_ICC 652 653// Determine whether the compiler supports Microsoft's Structured Exception 654// Handling. This is supported by several Windows compilers but generally 655// does not exist on any other system. 656#ifndef GTEST_HAS_SEH 657// The user didn't tell us, so we need to figure it out. 658 659# if defined(_MSC_VER) || defined(__BORLANDC__) 660// These two compilers are known to support SEH. 661# define GTEST_HAS_SEH 1 662# else 663// Assume no SEH. 664# define GTEST_HAS_SEH 0 665# endif 666 667#endif // GTEST_HAS_SEH 668 669#ifdef _MSC_VER 670 671# if GTEST_LINKED_AS_SHARED_LIBRARY 672# define GTEST_API_ __declspec(dllimport) 673# elif GTEST_CREATE_SHARED_LIBRARY 674# define GTEST_API_ __declspec(dllexport) 675# endif 676 677#endif // _MSC_VER 678 679#ifndef GTEST_API_ 680# define GTEST_API_ 681#endif 682 683#ifdef __GNUC__ 684// Ask the compiler to never inline a given function. 685# define GTEST_NO_INLINE_ __attribute__((noinline)) 686#else 687# define GTEST_NO_INLINE_ 688#endif 689 690namespace testing { 691 692class Message; 693 694namespace internal { 695 696class String; 697 698// The GTEST_COMPILE_ASSERT_ macro can be used to verify that a compile time 699// expression is true. For example, you could use it to verify the 700// size of a static array: 701// 702// GTEST_COMPILE_ASSERT_(ARRAYSIZE(content_type_names) == CONTENT_NUM_TYPES, 703// content_type_names_incorrect_size); 704// 705// or to make sure a struct is smaller than a certain size: 706// 707// GTEST_COMPILE_ASSERT_(sizeof(foo) < 128, foo_too_large); 708// 709// The second argument to the macro is the name of the variable. If 710// the expression is false, most compilers will issue a warning/error 711// containing the name of the variable. 712 713template <bool> 714struct CompileAssert { 715}; 716 717#define GTEST_COMPILE_ASSERT_(expr, msg) \ 718 typedef ::testing::internal::CompileAssert<(bool(expr))> \ 719 msg[bool(expr) ? 1 : -1] 720 721// Implementation details of GTEST_COMPILE_ASSERT_: 722// 723// - GTEST_COMPILE_ASSERT_ works by defining an array type that has -1 724// elements (and thus is invalid) when the expression is false. 725// 726// - The simpler definition 727// 728// #define GTEST_COMPILE_ASSERT_(expr, msg) typedef char msg[(expr) ? 1 : -1] 729// 730// does not work, as gcc supports variable-length arrays whose sizes 731// are determined at run-time (this is gcc's extension and not part 732// of the C++ standard). As a result, gcc fails to reject the 733// following code with the simple definition: 734// 735// int foo; 736// GTEST_COMPILE_ASSERT_(foo, msg); // not supposed to compile as foo is 737// // not a compile-time constant. 738// 739// - By using the type CompileAssert<(bool(expr))>, we ensures that 740// expr is a compile-time constant. (Template arguments must be 741// determined at compile-time.) 742// 743// - The outter parentheses in CompileAssert<(bool(expr))> are necessary 744// to work around a bug in gcc 3.4.4 and 4.0.1. If we had written 745// 746// CompileAssert<bool(expr)> 747// 748// instead, these compilers will refuse to compile 749// 750// GTEST_COMPILE_ASSERT_(5 > 0, some_message); 751// 752// (They seem to think the ">" in "5 > 0" marks the end of the 753// template argument list.) 754// 755// - The array size is (bool(expr) ? 1 : -1), instead of simply 756// 757// ((expr) ? 1 : -1). 758// 759// This is to avoid running into a bug in MS VC 7.1, which 760// causes ((0.0) ? 1 : -1) to incorrectly evaluate to 1. 761 762// StaticAssertTypeEqHelper is used by StaticAssertTypeEq defined in gtest.h. 763// 764// This template is declared, but intentionally undefined. 765template <typename T1, typename T2> 766struct StaticAssertTypeEqHelper; 767 768template <typename T> 769struct StaticAssertTypeEqHelper<T, T> {}; 770 771#if GTEST_HAS_GLOBAL_STRING 772typedef ::string string; 773#else 774typedef ::std::string string; 775#endif // GTEST_HAS_GLOBAL_STRING 776 777#if GTEST_HAS_GLOBAL_WSTRING 778typedef ::wstring wstring; 779#elif GTEST_HAS_STD_WSTRING 780typedef ::std::wstring wstring; 781#endif // GTEST_HAS_GLOBAL_WSTRING 782 783// A helper for suppressing warnings on constant condition. It just 784// returns 'condition'. 785GTEST_API_ bool IsTrue(bool condition); 786 787// Defines scoped_ptr. 788 789// This implementation of scoped_ptr is PARTIAL - it only contains 790// enough stuff to satisfy Google Test's need. 791template <typename T> 792class scoped_ptr { 793 public: 794 typedef T element_type; 795 796 explicit scoped_ptr(T* p = NULL) : ptr_(p) {} 797 ~scoped_ptr() { reset(); } 798 799 T& operator*() const { return *ptr_; } 800 T* operator->() const { return ptr_; } 801 T* get() const { return ptr_; } 802 803 T* release() { 804 T* const ptr = ptr_; 805 ptr_ = NULL; 806 return ptr; 807 } 808 809 void reset(T* p = NULL) { 810 if (p != ptr_) { 811 if (IsTrue(sizeof(T) > 0)) { // Makes sure T is a complete type. 812 delete ptr_; 813 } 814 ptr_ = p; 815 } 816 } 817 private: 818 T* ptr_; 819 820 GTEST_DISALLOW_COPY_AND_ASSIGN_(scoped_ptr); 821}; 822 823// Defines RE. 824 825// A simple C++ wrapper for <regex.h>. It uses the POSIX Extended 826// Regular Expression syntax. 827class GTEST_API_ RE { 828 public: 829 // A copy constructor is required by the Standard to initialize object 830 // references from r-values. 831 RE(const RE& other) { Init(other.pattern()); } 832 833 // Constructs an RE from a string. 834 RE(const ::std::string& regex) { Init(regex.c_str()); } // NOLINT 835 836#if GTEST_HAS_GLOBAL_STRING 837 838 RE(const ::string& regex) { Init(regex.c_str()); } // NOLINT 839 840#endif // GTEST_HAS_GLOBAL_STRING 841 842 RE(const char* regex) { Init(regex); } // NOLINT 843 ~RE(); 844 845 // Returns the string representation of the regex. 846 const char* pattern() const { return pattern_; } 847 848 // FullMatch(str, re) returns true iff regular expression re matches 849 // the entire str. 850 // PartialMatch(str, re) returns true iff regular expression re 851 // matches a substring of str (including str itself). 852 // 853 // TODO(wan@google.com): make FullMatch() and PartialMatch() work 854 // when str contains NUL characters. 855 static bool FullMatch(const ::std::string& str, const RE& re) { 856 return FullMatch(str.c_str(), re); 857 } 858 static bool PartialMatch(const ::std::string& str, const RE& re) { 859 return PartialMatch(str.c_str(), re); 860 } 861 862#if GTEST_HAS_GLOBAL_STRING 863 864 static bool FullMatch(const ::string& str, const RE& re) { 865 return FullMatch(str.c_str(), re); 866 } 867 static bool PartialMatch(const ::string& str, const RE& re) { 868 return PartialMatch(str.c_str(), re); 869 } 870 871#endif // GTEST_HAS_GLOBAL_STRING 872 873 static bool FullMatch(const char* str, const RE& re); 874 static bool PartialMatch(const char* str, const RE& re); 875 876 private: 877 void Init(const char* regex); 878 879 // We use a const char* instead of a string, as Google Test may be used 880 // where string is not available. We also do not use Google Test's own 881 // String type here, in order to simplify dependencies between the 882 // files. 883 const char* pattern_; 884 bool is_valid_; 885 886#if GTEST_USES_POSIX_RE 887 888 regex_t full_regex_; // For FullMatch(). 889 regex_t partial_regex_; // For PartialMatch(). 890 891#else // GTEST_USES_SIMPLE_RE 892 893 const char* full_pattern_; // For FullMatch(); 894 895#endif 896 897 GTEST_DISALLOW_ASSIGN_(RE); 898}; 899 900// Formats a source file path and a line number as they would appear 901// in an error message from the compiler used to compile this code. 902GTEST_API_ ::std::string FormatFileLocation(const char* file, int line); 903 904// Formats a file location for compiler-independent XML output. 905// Although this function is not platform dependent, we put it next to 906// FormatFileLocation in order to contrast the two functions. 907GTEST_API_ ::std::string FormatCompilerIndependentFileLocation(const char* file, 908 int line); 909 910// Defines logging utilities: 911// GTEST_LOG_(severity) - logs messages at the specified severity level. The 912// message itself is streamed into the macro. 913// LogToStderr() - directs all log messages to stderr. 914// FlushInfoLog() - flushes informational log messages. 915 916enum GTestLogSeverity { 917 GTEST_INFO, 918 GTEST_WARNING, 919 GTEST_ERROR, 920 GTEST_FATAL 921}; 922 923// Formats log entry severity, provides a stream object for streaming the 924// log message, and terminates the message with a newline when going out of 925// scope. 926class GTEST_API_ GTestLog { 927 public: 928 GTestLog(GTestLogSeverity severity, const char* file, int line); 929 930 // Flushes the buffers and, if severity is GTEST_FATAL, aborts the program. 931 ~GTestLog(); 932 933 ::std::ostream& GetStream() { return ::std::cerr; } 934 935 private: 936 const GTestLogSeverity severity_; 937 938 GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestLog); 939}; 940 941#define GTEST_LOG_(severity) \ 942 ::testing::internal::GTestLog(::testing::internal::GTEST_##severity, \ 943 __FILE__, __LINE__).GetStream() 944 945inline void LogToStderr() {} 946inline void FlushInfoLog() { fflush(NULL); } 947 948// INTERNAL IMPLEMENTATION - DO NOT USE. 949// 950// GTEST_CHECK_ is an all-mode assert. It aborts the program if the condition 951// is not satisfied. 952// Synopsys: 953// GTEST_CHECK_(boolean_condition); 954// or 955// GTEST_CHECK_(boolean_condition) << "Additional message"; 956// 957// This checks the condition and if the condition is not satisfied 958// it prints message about the condition violation, including the 959// condition itself, plus additional message streamed into it, if any, 960// and then it aborts the program. It aborts the program irrespective of 961// whether it is built in the debug mode or not. 962#define GTEST_CHECK_(condition) \ 963 GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ 964 if (::testing::internal::IsTrue(condition)) \ 965 ; \ 966 else \ 967 GTEST_LOG_(FATAL) << "Condition " #condition " failed. " 968 969// An all-mode assert to verify that the given POSIX-style function 970// call returns 0 (indicating success). Known limitation: this 971// doesn't expand to a balanced 'if' statement, so enclose the macro 972// in {} if you need to use it as the only statement in an 'if' 973// branch. 974#define GTEST_CHECK_POSIX_SUCCESS_(posix_call) \ 975 if (const int gtest_error = (posix_call)) \ 976 GTEST_LOG_(FATAL) << #posix_call << "failed with error " \ 977 << gtest_error 978 979// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE. 980// 981// Use ImplicitCast_ as a safe version of static_cast for upcasting in 982// the type hierarchy (e.g. casting a Foo* to a SuperclassOfFoo* or a 983// const Foo*). When you use ImplicitCast_, the compiler checks that 984// the cast is safe. Such explicit ImplicitCast_s are necessary in 985// surprisingly many situations where C++ demands an exact type match 986// instead of an argument type convertable to a target type. 987// 988// The syntax for using ImplicitCast_ is the same as for static_cast: 989// 990// ImplicitCast_<ToType>(expr) 991// 992// ImplicitCast_ would have been part of the C++ standard library, 993// but the proposal was submitted too late. It will probably make 994// its way into the language in the future. 995// 996// This relatively ugly name is intentional. It prevents clashes with 997// similar functions users may have (e.g., implicit_cast). The internal 998// namespace alone is not enough because the function can be found by ADL. 999template<typename To> 1000inline To ImplicitCast_(To x) { return x; } 1001 1002// When you upcast (that is, cast a pointer from type Foo to type 1003// SuperclassOfFoo), it's fine to use ImplicitCast_<>, since upcasts 1004// always succeed. When you downcast (that is, cast a pointer from 1005// type Foo to type SubclassOfFoo), static_cast<> isn't safe, because 1006// how do you know the pointer is really of type SubclassOfFoo? It 1007// could be a bare Foo, or of type DifferentSubclassOfFoo. Thus, 1008// when you downcast, you should use this macro. In debug mode, we 1009// use dynamic_cast<> to double-check the downcast is legal (we die 1010// if it's not). In normal mode, we do the efficient static_cast<> 1011// instead. Thus, it's important to test in debug mode to make sure 1012// the cast is legal! 1013// This is the only place in the code we should use dynamic_cast<>. 1014// In particular, you SHOULDN'T be using dynamic_cast<> in order to 1015// do RTTI (eg code like this: 1016// if (dynamic_cast<Subclass1>(foo)) HandleASubclass1Object(foo); 1017// if (dynamic_cast<Subclass2>(foo)) HandleASubclass2Object(foo); 1018// You should design the code some other way not to need this. 1019// 1020// This relatively ugly name is intentional. It prevents clashes with 1021// similar functions users may have (e.g., down_cast). The internal 1022// namespace alone is not enough because the function can be found by ADL. 1023template<typename To, typename From> // use like this: DownCast_<T*>(foo); 1024inline To DownCast_(From* f) { // so we only accept pointers 1025 // Ensures that To is a sub-type of From *. This test is here only 1026 // for compile-time type checking, and has no overhead in an 1027 // optimized build at run-time, as it will be optimized away 1028 // completely. 1029 if (false) { 1030 const To to = NULL; 1031 ::testing::internal::ImplicitCast_<From*>(to); 1032 } 1033 1034#if GTEST_HAS_RTTI 1035 // RTTI: debug mode only! 1036 GTEST_CHECK_(f == NULL || dynamic_cast<To>(f) != NULL); 1037#endif 1038 return static_cast<To>(f); 1039} 1040 1041// Downcasts the pointer of type Base to Derived. 1042// Derived must be a subclass of Base. The parameter MUST 1043// point to a class of type Derived, not any subclass of it. 1044// When RTTI is available, the function performs a runtime 1045// check to enforce this. 1046template <class Derived, class Base> 1047Derived* CheckedDowncastToActualType(Base* base) { 1048#if GTEST_HAS_RTTI 1049 GTEST_CHECK_(typeid(*base) == typeid(Derived)); 1050 return dynamic_cast<Derived*>(base); // NOLINT 1051#else 1052 return static_cast<Derived*>(base); // Poor man's downcast. 1053#endif 1054} 1055 1056#if GTEST_HAS_STREAM_REDIRECTION 1057 1058// Defines the stderr capturer: 1059// CaptureStdout - starts capturing stdout. 1060// GetCapturedStdout - stops capturing stdout and returns the captured string. 1061// CaptureStderr - starts capturing stderr. 1062// GetCapturedStderr - stops capturing stderr and returns the captured string. 1063// 1064GTEST_API_ void CaptureStdout(); 1065GTEST_API_ String GetCapturedStdout(); 1066GTEST_API_ void CaptureStderr(); 1067GTEST_API_ String GetCapturedStderr(); 1068 1069#endif // GTEST_HAS_STREAM_REDIRECTION 1070 1071 1072#if GTEST_HAS_DEATH_TEST 1073 1074// A copy of all command line arguments. Set by InitGoogleTest(). 1075extern ::std::vector<String> g_argvs; 1076 1077// GTEST_HAS_DEATH_TEST implies we have ::std::string. 1078const ::std::vector<String>& GetArgvs(); 1079 1080#endif // GTEST_HAS_DEATH_TEST 1081 1082// Defines synchronization primitives. 1083 1084#if GTEST_HAS_PTHREAD 1085 1086// Sleeps for (roughly) n milli-seconds. This function is only for 1087// testing Google Test's own constructs. Don't use it in user tests, 1088// either directly or indirectly. 1089inline void SleepMilliseconds(int n) { 1090 const timespec time = { 1091 0, // 0 seconds. 1092 n * 1000L * 1000L, // And n ms. 1093 }; 1094 nanosleep(&time, NULL); 1095} 1096 1097// Allows a controller thread to pause execution of newly created 1098// threads until notified. Instances of this class must be created 1099// and destroyed in the controller thread. 1100// 1101// This class is only for testing Google Test's own constructs. Do not 1102// use it in user tests, either directly or indirectly. 1103class Notification { 1104 public: 1105 Notification() : notified_(false) {} 1106 1107 // Notifies all threads created with this notification to start. Must 1108 // be called from the controller thread. 1109 void Notify() { notified_ = true; } 1110 1111 // Blocks until the controller thread notifies. Must be called from a test 1112 // thread. 1113 void WaitForNotification() { 1114 while(!notified_) { 1115 SleepMilliseconds(10); 1116 } 1117 } 1118 1119 private: 1120 volatile bool notified_; 1121 1122 GTEST_DISALLOW_COPY_AND_ASSIGN_(Notification); 1123}; 1124 1125// As a C-function, ThreadFuncWithCLinkage cannot be templated itself. 1126// Consequently, it cannot select a correct instantiation of ThreadWithParam 1127// in order to call its Run(). Introducing ThreadWithParamBase as a 1128// non-templated base class for ThreadWithParam allows us to bypass this 1129// problem. 1130class ThreadWithParamBase { 1131 public: 1132 virtual ~ThreadWithParamBase() {} 1133 virtual void Run() = 0; 1134}; 1135 1136// pthread_create() accepts a pointer to a function type with the C linkage. 1137// According to the Standard (7.5/1), function types with different linkages 1138// are different even if they are otherwise identical. Some compilers (for 1139// example, SunStudio) treat them as different types. Since class methods 1140// cannot be defined with C-linkage we need to define a free C-function to 1141// pass into pthread_create(). 1142extern "C" inline void* ThreadFuncWithCLinkage(void* thread) { 1143 static_cast<ThreadWithParamBase*>(thread)->Run(); 1144 return NULL; 1145} 1146 1147// Helper class for testing Google Test's multi-threading constructs. 1148// To use it, write: 1149// 1150// void ThreadFunc(int param) { /* Do things with param */ } 1151// Notification thread_can_start; 1152// ... 1153// // The thread_can_start parameter is optional; you can supply NULL. 1154// ThreadWithParam<int> thread(&ThreadFunc, 5, &thread_can_start); 1155// thread_can_start.Notify(); 1156// 1157// These classes are only for testing Google Test's own constructs. Do 1158// not use them in user tests, either directly or indirectly. 1159template <typename T> 1160class ThreadWithParam : public ThreadWithParamBase { 1161 public: 1162 typedef void (*UserThreadFunc)(T); 1163 1164 ThreadWithParam( 1165 UserThreadFunc func, T param, Notification* thread_can_start) 1166 : func_(func), 1167 param_(param), 1168 thread_can_start_(thread_can_start), 1169 finished_(false) { 1170 ThreadWithParamBase* const base = this; 1171 // The thread can be created only after all fields except thread_ 1172 // have been initialized. 1173 GTEST_CHECK_POSIX_SUCCESS_( 1174 pthread_create(&thread_, 0, &ThreadFuncWithCLinkage, base)); 1175 } 1176 ~ThreadWithParam() { Join(); } 1177 1178 void Join() { 1179 if (!finished_) { 1180 GTEST_CHECK_POSIX_SUCCESS_(pthread_join(thread_, 0)); 1181 finished_ = true; 1182 } 1183 } 1184 1185 virtual void Run() { 1186 if (thread_can_start_ != NULL) 1187 thread_can_start_->WaitForNotification(); 1188 func_(param_); 1189 } 1190 1191 private: 1192 const UserThreadFunc func_; // User-supplied thread function. 1193 const T param_; // User-supplied parameter to the thread function. 1194 // When non-NULL, used to block execution until the controller thread 1195 // notifies. 1196 Notification* const thread_can_start_; 1197 bool finished_; // true iff we know that the thread function has finished. 1198 pthread_t thread_; // The native thread object. 1199 1200 GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadWithParam); 1201}; 1202 1203// MutexBase and Mutex implement mutex on pthreads-based platforms. They 1204// are used in conjunction with class MutexLock: 1205// 1206// Mutex mutex; 1207// ... 1208// MutexLock lock(&mutex); // Acquires the mutex and releases it at the end 1209// // of the current scope. 1210// 1211// MutexBase implements behavior for both statically and dynamically 1212// allocated mutexes. Do not use MutexBase directly. Instead, write 1213// the following to define a static mutex: 1214// 1215// GTEST_DEFINE_STATIC_MUTEX_(g_some_mutex); 1216// 1217// You can forward declare a static mutex like this: 1218// 1219// GTEST_DECLARE_STATIC_MUTEX_(g_some_mutex); 1220// 1221// To create a dynamic mutex, just define an object of type Mutex. 1222class MutexBase { 1223 public: 1224 // Acquires this mutex. 1225 void Lock() { 1226 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_lock(&mutex_)); 1227 owner_ = pthread_self(); 1228 } 1229 1230 // Releases this mutex. 1231 void Unlock() { 1232 // We don't protect writing to owner_ here, as it's the caller's 1233 // responsibility to ensure that the current thread holds the 1234 // mutex when this is called. 1235 owner_ = 0; 1236 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_unlock(&mutex_)); 1237 } 1238 1239 // Does nothing if the current thread holds the mutex. Otherwise, crashes 1240 // with high probability. 1241 void AssertHeld() const { 1242 GTEST_CHECK_(owner_ == pthread_self()) 1243 << "The current thread is not holding the mutex @" << this; 1244 } 1245 1246 // A static mutex may be used before main() is entered. It may even 1247 // be used before the dynamic initialization stage. Therefore we 1248 // must be able to initialize a static mutex object at link time. 1249 // This means MutexBase has to be a POD and its member variables 1250 // have to be public. 1251 public: 1252 pthread_mutex_t mutex_; // The underlying pthread mutex. 1253 pthread_t owner_; // The thread holding the mutex; 0 means no one holds it. 1254}; 1255 1256// Forward-declares a static mutex. 1257# define GTEST_DECLARE_STATIC_MUTEX_(mutex) \ 1258 extern ::testing::internal::MutexBase mutex 1259 1260// Defines and statically (i.e. at link time) initializes a static mutex. 1261# define GTEST_DEFINE_STATIC_MUTEX_(mutex) \ 1262 ::testing::internal::MutexBase mutex = { PTHREAD_MUTEX_INITIALIZER, 0 } 1263 1264// The Mutex class can only be used for mutexes created at runtime. It 1265// shares its API with MutexBase otherwise. 1266class Mutex : public MutexBase { 1267 public: 1268 Mutex() { 1269 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_init(&mutex_, NULL)); 1270 owner_ = 0; 1271 } 1272 ~Mutex() { 1273 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_destroy(&mutex_)); 1274 } 1275 1276 private: 1277 GTEST_DISALLOW_COPY_AND_ASSIGN_(Mutex); 1278}; 1279 1280// We cannot name this class MutexLock as the ctor declaration would 1281// conflict with a macro named MutexLock, which is defined on some 1282// platforms. Hence the typedef trick below. 1283class GTestMutexLock { 1284 public: 1285 explicit GTestMutexLock(MutexBase* mutex) 1286 : mutex_(mutex) { mutex_->Lock(); } 1287 1288 ~GTestMutexLock() { mutex_->Unlock(); } 1289 1290 private: 1291 MutexBase* const mutex_; 1292 1293 GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestMutexLock); 1294}; 1295 1296typedef GTestMutexLock MutexLock; 1297 1298// Helpers for ThreadLocal. 1299 1300// pthread_key_create() requires DeleteThreadLocalValue() to have 1301// C-linkage. Therefore it cannot be templatized to access 1302// ThreadLocal<T>. Hence the need for class 1303// ThreadLocalValueHolderBase. 1304class ThreadLocalValueHolderBase { 1305 public: 1306 virtual ~ThreadLocalValueHolderBase() {} 1307}; 1308 1309// Called by pthread to delete thread-local data stored by 1310// pthread_setspecific(). 1311extern "C" inline void DeleteThreadLocalValue(void* value_holder) { 1312 delete static_cast<ThreadLocalValueHolderBase*>(value_holder); 1313} 1314 1315// Implements thread-local storage on pthreads-based systems. 1316// 1317// // Thread 1 1318// ThreadLocal<int> tl(100); // 100 is the default value for each thread. 1319// 1320// // Thread 2 1321// tl.set(150); // Changes the value for thread 2 only. 1322// EXPECT_EQ(150, tl.get()); 1323// 1324// // Thread 1 1325// EXPECT_EQ(100, tl.get()); // In thread 1, tl has the original value. 1326// tl.set(200); 1327// EXPECT_EQ(200, tl.get()); 1328// 1329// The template type argument T must have a public copy constructor. 1330// In addition, the default ThreadLocal constructor requires T to have 1331// a public default constructor. 1332// 1333// An object managed for a thread by a ThreadLocal instance is deleted 1334// when the thread exits. Or, if the ThreadLocal instance dies in 1335// that thread, when the ThreadLocal dies. It's the user's 1336// responsibility to ensure that all other threads using a ThreadLocal 1337// have exited when it dies, or the per-thread objects for those 1338// threads will not be deleted. 1339// 1340// Google Test only uses global ThreadLocal objects. That means they 1341// will die after main() has returned. Therefore, no per-thread 1342// object managed by Google Test will be leaked as long as all threads 1343// using Google Test have exited when main() returns. 1344template <typename T> 1345class ThreadLocal { 1346 public: 1347 ThreadLocal() : key_(CreateKey()), 1348 default_() {} 1349 explicit ThreadLocal(const T& value) : key_(CreateKey()), 1350 default_(value) {} 1351 1352 ~ThreadLocal() { 1353 // Destroys the managed object for the current thread, if any. 1354 DeleteThreadLocalValue(pthread_getspecific(key_)); 1355 1356 // Releases resources associated with the key. This will *not* 1357 // delete managed objects for other threads. 1358 GTEST_CHECK_POSIX_SUCCESS_(pthread_key_delete(key_)); 1359 } 1360 1361 T* pointer() { return GetOrCreateValue(); } 1362 const T* pointer() const { return GetOrCreateValue(); } 1363 const T& get() const { return *pointer(); } 1364 void set(const T& value) { *pointer() = value; } 1365 1366 private: 1367 // Holds a value of type T. 1368 class ValueHolder : public ThreadLocalValueHolderBase { 1369 public: 1370 explicit ValueHolder(const T& value) : value_(value) {} 1371 1372 T* pointer() { return &value_; } 1373 1374 private: 1375 T value_; 1376 GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolder); 1377 }; 1378 1379 static pthread_key_t CreateKey() { 1380 pthread_key_t key; 1381 // When a thread exits, DeleteThreadLocalValue() will be called on 1382 // the object managed for that thread. 1383 GTEST_CHECK_POSIX_SUCCESS_( 1384 pthread_key_create(&key, &DeleteThreadLocalValue)); 1385 return key; 1386 } 1387 1388 T* GetOrCreateValue() const { 1389 ThreadLocalValueHolderBase* const holder = 1390 static_cast<ThreadLocalValueHolderBase*>(pthread_getspecific(key_)); 1391 if (holder != NULL) { 1392 return CheckedDowncastToActualType<ValueHolder>(holder)->pointer(); 1393 } 1394 1395 ValueHolder* const new_holder = new ValueHolder(default_); 1396 ThreadLocalValueHolderBase* const holder_base = new_holder; 1397 GTEST_CHECK_POSIX_SUCCESS_(pthread_setspecific(key_, holder_base)); 1398 return new_holder->pointer(); 1399 } 1400 1401 // A key pthreads uses for looking up per-thread values. 1402 const pthread_key_t key_; 1403 const T default_; // The default value for each thread. 1404 1405 GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocal); 1406}; 1407 1408# define GTEST_IS_THREADSAFE 1 1409 1410#else // GTEST_HAS_PTHREAD 1411 1412// A dummy implementation of synchronization primitives (mutex, lock, 1413// and thread-local variable). Necessary for compiling Google Test where 1414// mutex is not supported - using Google Test in multiple threads is not 1415// supported on such platforms. 1416 1417class Mutex { 1418 public: 1419 Mutex() {} 1420 void AssertHeld() const {} 1421}; 1422 1423# define GTEST_DECLARE_STATIC_MUTEX_(mutex) \ 1424 extern ::testing::internal::Mutex mutex 1425 1426# define GTEST_DEFINE_STATIC_MUTEX_(mutex) ::testing::internal::Mutex mutex 1427 1428class GTestMutexLock { 1429 public: 1430 explicit GTestMutexLock(Mutex*) {} // NOLINT 1431}; 1432 1433typedef GTestMutexLock MutexLock; 1434 1435template <typename T> 1436class ThreadLocal { 1437 public: 1438 ThreadLocal() : value_() {} 1439 explicit ThreadLocal(const T& value) : value_(value) {} 1440 T* pointer() { return &value_; } 1441 const T* pointer() const { return &value_; } 1442 const T& get() const { return value_; } 1443 void set(const T& value) { value_ = value; } 1444 private: 1445 T value_; 1446}; 1447 1448// The above synchronization primitives have dummy implementations. 1449// Therefore Google Test is not thread-safe. 1450# define GTEST_IS_THREADSAFE 0 1451 1452#endif // GTEST_HAS_PTHREAD 1453 1454// Returns the number of threads running in the process, or 0 to indicate that 1455// we cannot detect it. 1456GTEST_API_ size_t GetThreadCount(); 1457 1458// Passing non-POD classes through ellipsis (...) crashes the ARM 1459// compiler and generates a warning in Sun Studio. The Nokia Symbian 1460// and the IBM XL C/C++ compiler try to instantiate a copy constructor 1461// for objects passed through ellipsis (...), failing for uncopyable 1462// objects. We define this to ensure that only POD is passed through 1463// ellipsis on these systems. 1464#if defined(__SYMBIAN32__) || defined(__IBMCPP__) || defined(__SUNPRO_CC) 1465// We lose support for NULL detection where the compiler doesn't like 1466// passing non-POD classes through ellipsis (...). 1467# define GTEST_ELLIPSIS_NEEDS_POD_ 1 1468#else 1469# define GTEST_CAN_COMPARE_NULL 1 1470#endif 1471 1472// The Nokia Symbian and IBM XL C/C++ compilers cannot decide between 1473// const T& and const T* in a function template. These compilers 1474// _can_ decide between class template specializations for T and T*, 1475// so a tr1::type_traits-like is_pointer works. 1476#if defined(__SYMBIAN32__) || defined(__IBMCPP__) 1477# define GTEST_NEEDS_IS_POINTER_ 1 1478#endif 1479 1480template <bool bool_value> 1481struct bool_constant { 1482 typedef bool_constant<bool_value> type; 1483 static const bool value = bool_value; 1484}; 1485template <bool bool_value> const bool bool_constant<bool_value>::value; 1486 1487typedef bool_constant<false> false_type; 1488typedef bool_constant<true> true_type; 1489 1490template <typename T> 1491struct is_pointer : public false_type {}; 1492 1493template <typename T> 1494struct is_pointer<T*> : public true_type {}; 1495 1496template <typename Iterator> 1497struct IteratorTraits { 1498 typedef typename Iterator::value_type value_type; 1499}; 1500 1501template <typename T> 1502struct IteratorTraits<T*> { 1503 typedef T value_type; 1504}; 1505 1506template <typename T> 1507struct IteratorTraits<const T*> { 1508 typedef T value_type; 1509}; 1510 1511#if GTEST_OS_WINDOWS 1512# define GTEST_PATH_SEP_ "\\" 1513# define GTEST_HAS_ALT_PATH_SEP_ 1 1514// The biggest signed integer type the compiler supports. 1515typedef __int64 BiggestInt; 1516#else 1517# define GTEST_PATH_SEP_ "/" 1518# define GTEST_HAS_ALT_PATH_SEP_ 0 1519typedef long long BiggestInt; // NOLINT 1520#endif // GTEST_OS_WINDOWS 1521 1522// Utilities for char. 1523 1524// isspace(int ch) and friends accept an unsigned char or EOF. char 1525// may be signed, depending on the compiler (or compiler flags). 1526// Therefore we need to cast a char to unsigned char before calling 1527// isspace(), etc. 1528 1529inline bool IsAlpha(char ch) { 1530 return isalpha(static_cast<unsigned char>(ch)) != 0; 1531} 1532inline bool IsAlNum(char ch) { 1533 return isalnum(static_cast<unsigned char>(ch)) != 0; 1534} 1535inline bool IsDigit(char ch) { 1536 return isdigit(static_cast<unsigned char>(ch)) != 0; 1537} 1538inline bool IsLower(char ch) { 1539 return islower(static_cast<unsigned char>(ch)) != 0; 1540} 1541inline bool IsSpace(char ch) { 1542 return isspace(static_cast<unsigned char>(ch)) != 0; 1543} 1544inline bool IsUpper(char ch) { 1545 return isupper(static_cast<unsigned char>(ch)) != 0; 1546} 1547inline bool IsXDigit(char ch) { 1548 return isxdigit(static_cast<unsigned char>(ch)) != 0; 1549} 1550 1551inline char ToLower(char ch) { 1552 return static_cast<char>(tolower(static_cast<unsigned char>(ch))); 1553} 1554inline char ToUpper(char ch) { 1555 return static_cast<char>(toupper(static_cast<unsigned char>(ch))); 1556} 1557 1558// The testing::internal::posix namespace holds wrappers for common 1559// POSIX functions. These wrappers hide the differences between 1560// Windows/MSVC and POSIX systems. Since some compilers define these 1561// standard functions as macros, the wrapper cannot have the same name 1562// as the wrapped function. 1563 1564namespace posix { 1565 1566// Functions with a different name on Windows. 1567 1568#if GTEST_OS_WINDOWS 1569 1570typedef struct _stat StatStruct; 1571 1572# ifdef __BORLANDC__ 1573inline int IsATTY(int fd) { return isatty(fd); } 1574inline int StrCaseCmp(const char* s1, const char* s2) { 1575 return stricmp(s1, s2); 1576} 1577inline char* StrDup(const char* src) { return strdup(src); } 1578# else // !__BORLANDC__ 1579# if GTEST_OS_WINDOWS_MOBILE 1580inline int IsATTY(int /* fd */) { return 0; } 1581# else 1582inline int IsATTY(int fd) { return _isatty(fd); } 1583# endif // GTEST_OS_WINDOWS_MOBILE 1584inline int StrCaseCmp(const char* s1, const char* s2) { 1585 return _stricmp(s1, s2); 1586} 1587inline char* StrDup(const char* src) { return _strdup(src); } 1588# endif // __BORLANDC__ 1589 1590# if GTEST_OS_WINDOWS_MOBILE 1591inline int FileNo(FILE* file) { return reinterpret_cast<int>(_fileno(file)); } 1592// Stat(), RmDir(), and IsDir() are not needed on Windows CE at this 1593// time and thus not defined there. 1594# else 1595inline int FileNo(FILE* file) { return _fileno(file); } 1596inline int Stat(const char* path, StatStruct* buf) { return _stat(path, buf); } 1597inline int RmDir(const char* dir) { return _rmdir(dir); } 1598inline bool IsDir(const StatStruct& st) { 1599 return (_S_IFDIR & st.st_mode) != 0; 1600} 1601# endif // GTEST_OS_WINDOWS_MOBILE 1602 1603#else 1604 1605typedef struct stat StatStruct; 1606 1607inline int FileNo(FILE* file) { return fileno(file); } 1608inline int IsATTY(int fd) { return isatty(fd); } 1609inline int Stat(const char* path, StatStruct* buf) { return stat(path, buf); } 1610inline int StrCaseCmp(const char* s1, const char* s2) { 1611 return strcasecmp(s1, s2); 1612} 1613inline char* StrDup(const char* src) { return strdup(src); } 1614inline int RmDir(const char* dir) { return rmdir(dir); } 1615inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); } 1616 1617#endif // GTEST_OS_WINDOWS 1618 1619// Functions deprecated by MSVC 8.0. 1620 1621#ifdef _MSC_VER 1622// Temporarily disable warning 4996 (deprecated function). 1623# pragma warning(push) 1624# pragma warning(disable:4996) 1625#endif 1626 1627inline const char* StrNCpy(char* dest, const char* src, size_t n) { 1628 return strncpy(dest, src, n); 1629} 1630 1631// ChDir(), FReopen(), FDOpen(), Read(), Write(), Close(), and 1632// StrError() aren't needed on Windows CE at this time and thus not 1633// defined there. 1634 1635#if !GTEST_OS_WINDOWS_MOBILE 1636inline int ChDir(const char* dir) { return chdir(dir); } 1637#endif 1638inline FILE* FOpen(const char* path, const char* mode) { 1639 return fopen(path, mode); 1640} 1641#if !GTEST_OS_WINDOWS_MOBILE 1642inline FILE *FReopen(const char* path, const char* mode, FILE* stream) { 1643 return freopen(path, mode, stream); 1644} 1645inline FILE* FDOpen(int fd, const char* mode) { return fdopen(fd, mode); } 1646#endif 1647inline int FClose(FILE* fp) { return fclose(fp); } 1648#if !GTEST_OS_WINDOWS_MOBILE 1649inline int Read(int fd, void* buf, unsigned int count) { 1650 return static_cast<int>(read(fd, buf, count)); 1651} 1652inline int Write(int fd, const void* buf, unsigned int count) { 1653 return static_cast<int>(write(fd, buf, count)); 1654} 1655inline int Close(int fd) { return close(fd); } 1656inline const char* StrError(int errnum) { return strerror(errnum); } 1657#endif 1658inline const char* GetEnv(const char* name) { 1659#if GTEST_OS_WINDOWS_MOBILE 1660 // We are on Windows CE, which has no environment variables. 1661 return NULL; 1662#elif defined(__BORLANDC__) || defined(__SunOS_5_8) || defined(__SunOS_5_9) 1663 // Environment variables which we programmatically clear will be set to the 1664 // empty string rather than unset (NULL). Handle that case. 1665 const char* const env = getenv(name); 1666 return (env != NULL && env[0] != '\0') ? env : NULL; 1667#else 1668 return getenv(name); 1669#endif 1670} 1671 1672#ifdef _MSC_VER 1673# pragma warning(pop) // Restores the warning state. 1674#endif 1675 1676#if GTEST_OS_WINDOWS_MOBILE 1677// Windows CE has no C library. The abort() function is used in 1678// several places in Google Test. This implementation provides a reasonable 1679// imitation of standard behaviour. 1680void Abort(); 1681#else 1682inline void Abort() { abort(); } 1683#endif // GTEST_OS_WINDOWS_MOBILE 1684 1685} // namespace posix 1686 1687// The maximum number a BiggestInt can represent. This definition 1688// works no matter BiggestInt is represented in one's complement or 1689// two's complement. 1690// 1691// We cannot rely on numeric_limits in STL, as __int64 and long long 1692// are not part of standard C++ and numeric_limits doesn't need to be 1693// defined for them. 1694const BiggestInt kMaxBiggestInt = 1695 ~(static_cast<BiggestInt>(1) << (8*sizeof(BiggestInt) - 1)); 1696 1697// This template class serves as a compile-time function from size to 1698// type. It maps a size in bytes to a primitive type with that 1699// size. e.g. 1700// 1701// TypeWithSize<4>::UInt 1702// 1703// is typedef-ed to be unsigned int (unsigned integer made up of 4 1704// bytes). 1705// 1706// Such functionality should belong to STL, but I cannot find it 1707// there. 1708// 1709// Google Test uses this class in the implementation of floating-point 1710// comparison. 1711// 1712// For now it only handles UInt (unsigned int) as that's all Google Test 1713// needs. Other types can be easily added in the future if need 1714// arises. 1715template <size_t size> 1716class TypeWithSize { 1717 public: 1718 // This prevents the user from using TypeWithSize<N> with incorrect 1719 // values of N. 1720 typedef void UInt; 1721}; 1722 1723// The specialization for size 4. 1724template <> 1725class TypeWithSize<4> { 1726 public: 1727 // unsigned int has size 4 in both gcc and MSVC. 1728 // 1729 // As base/basictypes.h doesn't compile on Windows, we cannot use 1730 // uint32, uint64, and etc here. 1731 typedef int Int; 1732 typedef unsigned int UInt; 1733}; 1734 1735// The specialization for size 8. 1736template <> 1737class TypeWithSize<8> { 1738 public: 1739 1740#if GTEST_OS_WINDOWS 1741 typedef __int64 Int; 1742 typedef unsigned __int64 UInt; 1743#else 1744 typedef long long Int; // NOLINT 1745 typedef unsigned long long UInt; // NOLINT 1746#endif // GTEST_OS_WINDOWS 1747}; 1748 1749// Integer types of known sizes. 1750typedef TypeWithSize<4>::Int Int32; 1751typedef TypeWithSize<4>::UInt UInt32; 1752typedef TypeWithSize<8>::Int Int64; 1753typedef TypeWithSize<8>::UInt UInt64; 1754typedef TypeWithSize<8>::Int TimeInMillis; // Represents time in milliseconds. 1755 1756// Utilities for command line flags and environment variables. 1757 1758// Macro for referencing flags. 1759#define GTEST_FLAG(name) FLAGS_gtest_##name 1760 1761// Macros for declaring flags. 1762#define GTEST_DECLARE_bool_(name) GTEST_API_ extern bool GTEST_FLAG(name) 1763#define GTEST_DECLARE_int32_(name) \ 1764 GTEST_API_ extern ::testing::internal::Int32 GTEST_FLAG(name) 1765#define GTEST_DECLARE_string_(name) \ 1766 GTEST_API_ extern ::testing::internal::String GTEST_FLAG(name) 1767 1768// Macros for defining flags. 1769#define GTEST_DEFINE_bool_(name, default_val, doc) \ 1770 GTEST_API_ bool GTEST_FLAG(name) = (default_val) 1771#define GTEST_DEFINE_int32_(name, default_val, doc) \ 1772 GTEST_API_ ::testing::internal::Int32 GTEST_FLAG(name) = (default_val) 1773#define GTEST_DEFINE_string_(name, default_val, doc) \ 1774 GTEST_API_ ::testing::internal::String GTEST_FLAG(name) = (default_val) 1775 1776// Parses 'str' for a 32-bit signed integer. If successful, writes the result 1777// to *value and returns true; otherwise leaves *value unchanged and returns 1778// false. 1779// TODO(chandlerc): Find a better way to refactor flag and environment parsing 1780// out of both gtest-port.cc and gtest.cc to avoid exporting this utility 1781// function. 1782bool ParseInt32(const Message& src_text, const char* str, Int32* value); 1783 1784// Parses a bool/Int32/string from the environment variable 1785// corresponding to the given Google Test flag. 1786bool BoolFromGTestEnv(const char* flag, bool default_val); 1787GTEST_API_ Int32 Int32FromGTestEnv(const char* flag, Int32 default_val); 1788const char* StringFromGTestEnv(const char* flag, const char* default_val); 1789 1790} // namespace internal 1791} // namespace testing 1792 1793#endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ 1794