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. All macros ending with _ and symbols defined in an 34// internal namespace are subject to change without notice. Code 35// outside Google Test MUST NOT USE THEM DIRECTLY. Macros that don't 36// end with _ are part of Google Test's public API and can be used by 37// code outside Google Test. 38// 39// This file is fundamental to Google Test. All other Google Test source 40// files are expected to #include this. Therefore, it cannot #include 41// any other Google Test header. 42 43#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ 44#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ 45 46// Environment-describing macros 47// ----------------------------- 48// 49// Google Test can be used in many different environments. Macros in 50// this section tell Google Test what kind of environment it is being 51// used in, such that Google Test can provide environment-specific 52// features and implementations. 53// 54// Google Test tries to automatically detect the properties of its 55// environment, so users usually don't need to worry about these 56// macros. However, the automatic detection is not perfect. 57// Sometimes it's necessary for a user to define some of the following 58// macros in the build script to override Google Test's decisions. 59// 60// If the user doesn't define a macro in the list, Google Test will 61// provide a default definition. After this header is #included, all 62// macros in this list will be defined to either 1 or 0. 63// 64// Notes to maintainers: 65// - Each macro here is a user-tweakable knob; do not grow the list 66// lightly. 67// - Use #if to key off these macros. Don't use #ifdef or "#if 68// defined(...)", which will not work as these macros are ALWAYS 69// defined. 70// 71// GTEST_HAS_CLONE - Define it to 1/0 to indicate that clone(2) 72// is/isn't available. 73// GTEST_HAS_EXCEPTIONS - Define it to 1/0 to indicate that exceptions 74// are enabled. 75// GTEST_HAS_GLOBAL_STRING - Define it to 1/0 to indicate that ::string 76// is/isn't available (some systems define 77// ::string, which is different to std::string). 78// GTEST_HAS_GLOBAL_WSTRING - Define it to 1/0 to indicate that ::string 79// is/isn't available (some systems define 80// ::wstring, which is different to std::wstring). 81// GTEST_HAS_POSIX_RE - Define it to 1/0 to indicate that POSIX regular 82// expressions are/aren't available. 83// GTEST_HAS_PTHREAD - Define it to 1/0 to indicate that <pthread.h> 84// is/isn't available. 85// GTEST_HAS_RTTI - Define it to 1/0 to indicate that RTTI is/isn't 86// enabled. 87// GTEST_HAS_STD_WSTRING - Define it to 1/0 to indicate that 88// std::wstring does/doesn't work (Google Test can 89// be used where std::wstring is unavailable). 90// GTEST_HAS_TR1_TUPLE - Define it to 1/0 to indicate tr1::tuple 91// is/isn't available. 92// GTEST_HAS_SEH - Define it to 1/0 to indicate whether the 93// compiler supports Microsoft's "Structured 94// Exception Handling". 95// GTEST_HAS_STREAM_REDIRECTION 96// - Define it to 1/0 to indicate whether the 97// platform supports I/O stream redirection using 98// dup() and dup2(). 99// GTEST_USE_OWN_TR1_TUPLE - Define it to 1/0 to indicate whether Google 100// Test's own tr1 tuple implementation should be 101// used. Unused when the user sets 102// GTEST_HAS_TR1_TUPLE to 0. 103// GTEST_LANG_CXX11 - Define it to 1/0 to indicate that Google Test 104// is building in C++11/C++98 mode. 105// GTEST_LINKED_AS_SHARED_LIBRARY 106// - Define to 1 when compiling tests that use 107// Google Test as a shared library (known as 108// DLL on Windows). 109// GTEST_CREATE_SHARED_LIBRARY 110// - Define to 1 when compiling Google Test itself 111// as a shared library. 112 113// Platform-indicating macros 114// -------------------------- 115// 116// Macros indicating the platform on which Google Test is being used 117// (a macro is defined to 1 if compiled on the given platform; 118// otherwise UNDEFINED -- it's never defined to 0.). Google Test 119// defines these macros automatically. Code outside Google Test MUST 120// NOT define them. 121// 122// GTEST_OS_AIX - IBM AIX 123// GTEST_OS_CYGWIN - Cygwin 124// GTEST_OS_FREEBSD - FreeBSD 125// GTEST_OS_HPUX - HP-UX 126// GTEST_OS_LINUX - Linux 127// GTEST_OS_LINUX_ANDROID - Google Android 128// GTEST_OS_MAC - Mac OS X 129// GTEST_OS_IOS - iOS 130// GTEST_OS_NACL - Google Native Client (NaCl) 131// GTEST_OS_OPENBSD - OpenBSD 132// GTEST_OS_QNX - QNX 133// GTEST_OS_SOLARIS - Sun Solaris 134// GTEST_OS_SYMBIAN - Symbian 135// GTEST_OS_WINDOWS - Windows (Desktop, MinGW, or Mobile) 136// GTEST_OS_WINDOWS_DESKTOP - Windows Desktop 137// GTEST_OS_WINDOWS_MINGW - MinGW 138// GTEST_OS_WINDOWS_MOBILE - Windows Mobile 139// GTEST_OS_WINDOWS_PHONE - Windows Phone 140// GTEST_OS_WINDOWS_RT - Windows Store App/WinRT 141// GTEST_OS_ZOS - z/OS 142// 143// Among the platforms, Cygwin, Linux, Max OS X, and Windows have the 144// most stable support. Since core members of the Google Test project 145// don't have access to other platforms, support for them may be less 146// stable. If you notice any problems on your platform, please notify 147// googletestframework@googlegroups.com (patches for fixing them are 148// even more welcome!). 149// 150// It is possible that none of the GTEST_OS_* macros are defined. 151 152// Feature-indicating macros 153// ------------------------- 154// 155// Macros indicating which Google Test features are available (a macro 156// is defined to 1 if the corresponding feature is supported; 157// otherwise UNDEFINED -- it's never defined to 0.). Google Test 158// defines these macros automatically. Code outside Google Test MUST 159// NOT define them. 160// 161// These macros are public so that portable tests can be written. 162// Such tests typically surround code using a feature with an #if 163// which controls that code. For example: 164// 165// #if GTEST_HAS_DEATH_TEST 166// EXPECT_DEATH(DoSomethingDeadly()); 167// #endif 168// 169// GTEST_HAS_COMBINE - the Combine() function (for value-parameterized 170// tests) 171// GTEST_HAS_DEATH_TEST - death tests 172// GTEST_HAS_PARAM_TEST - value-parameterized tests 173// GTEST_HAS_TYPED_TEST - typed tests 174// GTEST_HAS_TYPED_TEST_P - type-parameterized tests 175// GTEST_IS_THREADSAFE - Google Test is thread-safe. 176// GTEST_USES_POSIX_RE - enhanced POSIX regex is used. Do not confuse with 177// GTEST_HAS_POSIX_RE (see above) which users can 178// define themselves. 179// GTEST_USES_SIMPLE_RE - our own simple regex is used; 180// the above two are mutually exclusive. 181// GTEST_CAN_COMPARE_NULL - accepts untyped NULL in EXPECT_EQ(). 182 183// Misc public macros 184// ------------------ 185// 186// GTEST_FLAG(flag_name) - references the variable corresponding to 187// the given Google Test flag. 188 189// Internal utilities 190// ------------------ 191// 192// The following macros and utilities are for Google Test's INTERNAL 193// use only. Code outside Google Test MUST NOT USE THEM DIRECTLY. 194// 195// Macros for basic C++ coding: 196// GTEST_AMBIGUOUS_ELSE_BLOCKER_ - for disabling a gcc warning. 197// GTEST_ATTRIBUTE_UNUSED_ - declares that a class' instances or a 198// variable don't have to be used. 199// GTEST_DISALLOW_ASSIGN_ - disables operator=. 200// GTEST_DISALLOW_COPY_AND_ASSIGN_ - disables copy ctor and operator=. 201// GTEST_MUST_USE_RESULT_ - declares that a function's result must be used. 202// GTEST_INTENTIONAL_CONST_COND_PUSH_ - start code section where MSVC C4127 is 203// suppressed (constant conditional). 204// GTEST_INTENTIONAL_CONST_COND_POP_ - finish code section where MSVC C4127 205// is suppressed. 206// 207// C++11 feature wrappers: 208// 209// testing::internal::move - portability wrapper for std::move. 210// 211// Synchronization: 212// Mutex, MutexLock, ThreadLocal, GetThreadCount() 213// - synchronization primitives. 214// 215// Template meta programming: 216// is_pointer - as in TR1; needed on Symbian and IBM XL C/C++ only. 217// IteratorTraits - partial implementation of std::iterator_traits, which 218// is not available in libCstd when compiled with Sun C++. 219// 220// Smart pointers: 221// scoped_ptr - as in TR2. 222// 223// Regular expressions: 224// RE - a simple regular expression class using the POSIX 225// Extended Regular Expression syntax on UNIX-like 226// platforms, or a reduced regular exception syntax on 227// other platforms, including Windows. 228// 229// Logging: 230// GTEST_LOG_() - logs messages at the specified severity level. 231// LogToStderr() - directs all log messages to stderr. 232// FlushInfoLog() - flushes informational log messages. 233// 234// Stdout and stderr capturing: 235// CaptureStdout() - starts capturing stdout. 236// GetCapturedStdout() - stops capturing stdout and returns the captured 237// string. 238// CaptureStderr() - starts capturing stderr. 239// GetCapturedStderr() - stops capturing stderr and returns the captured 240// string. 241// 242// Integer types: 243// TypeWithSize - maps an integer to a int type. 244// Int32, UInt32, Int64, UInt64, TimeInMillis 245// - integers of known sizes. 246// BiggestInt - the biggest signed integer type. 247// 248// Command-line utilities: 249// GTEST_DECLARE_*() - declares a flag. 250// GTEST_DEFINE_*() - defines a flag. 251// GetInjectableArgvs() - returns the command line as a vector of strings. 252// 253// Environment variable utilities: 254// GetEnv() - gets the value of an environment variable. 255// BoolFromGTestEnv() - parses a bool environment variable. 256// Int32FromGTestEnv() - parses an Int32 environment variable. 257// StringFromGTestEnv() - parses a string environment variable. 258 259#include <ctype.h> // for isspace, etc 260#include <stddef.h> // for ptrdiff_t 261#include <stdlib.h> 262#include <stdio.h> 263#include <string.h> 264#ifndef _WIN32_WCE 265# include <sys/types.h> 266# include <sys/stat.h> 267#endif // !_WIN32_WCE 268 269#if defined __APPLE__ 270# include <AvailabilityMacros.h> 271# include <TargetConditionals.h> 272#endif 273 274#include <algorithm> // NOLINT 275#include <iostream> // NOLINT 276#include <sstream> // NOLINT 277#include <string> // NOLINT 278#include <utility> 279#include <vector> // NOLINT 280 281#include "gtest/internal/gtest-port-arch.h" 282#include "gtest/internal/custom/gtest-port.h" 283 284#if !defined(GTEST_DEV_EMAIL_) 285# define GTEST_DEV_EMAIL_ "googletestframework@@googlegroups.com" 286# define GTEST_FLAG_PREFIX_ "gtest_" 287# define GTEST_FLAG_PREFIX_DASH_ "gtest-" 288# define GTEST_FLAG_PREFIX_UPPER_ "GTEST_" 289# define GTEST_NAME_ "Google Test" 290# define GTEST_PROJECT_URL_ "https://github.com/google/googletest/" 291#endif // !defined(GTEST_DEV_EMAIL_) 292 293#if !defined(GTEST_INIT_GOOGLE_TEST_NAME_) 294# define GTEST_INIT_GOOGLE_TEST_NAME_ "testing::InitGoogleTest" 295#endif // !defined(GTEST_INIT_GOOGLE_TEST_NAME_) 296 297// Determines the version of gcc that is used to compile this. 298#ifdef __GNUC__ 299// 40302 means version 4.3.2. 300# define GTEST_GCC_VER_ \ 301 (__GNUC__*10000 + __GNUC_MINOR__*100 + __GNUC_PATCHLEVEL__) 302#endif // __GNUC__ 303 304// Macros for disabling Microsoft Visual C++ warnings. 305// 306// GTEST_DISABLE_MSC_WARNINGS_PUSH_(4800 4385) 307// /* code that triggers warnings C4800 and C4385 */ 308// GTEST_DISABLE_MSC_WARNINGS_POP_() 309#if _MSC_VER >= 1500 310# define GTEST_DISABLE_MSC_WARNINGS_PUSH_(warnings) \ 311 __pragma(warning(push)) \ 312 __pragma(warning(disable: warnings)) 313# define GTEST_DISABLE_MSC_WARNINGS_POP_() \ 314 __pragma(warning(pop)) 315#else 316// Older versions of MSVC don't have __pragma. 317# define GTEST_DISABLE_MSC_WARNINGS_PUSH_(warnings) 318# define GTEST_DISABLE_MSC_WARNINGS_POP_() 319#endif 320 321#ifndef GTEST_LANG_CXX11 322// gcc and clang define __GXX_EXPERIMENTAL_CXX0X__ when 323// -std={c,gnu}++{0x,11} is passed. The C++11 standard specifies a 324// value for __cplusplus, and recent versions of clang, gcc, and 325// probably other compilers set that too in C++11 mode. 326# if __GXX_EXPERIMENTAL_CXX0X__ || __cplusplus >= 201103L 327// Compiling in at least C++11 mode. 328# define GTEST_LANG_CXX11 1 329# else 330# define GTEST_LANG_CXX11 0 331# endif 332#endif 333 334// Distinct from C++11 language support, some environments don't provide 335// proper C++11 library support. Notably, it's possible to build in 336// C++11 mode when targeting Mac OS X 10.6, which has an old libstdc++ 337// with no C++11 support. 338// 339// libstdc++ has sufficient C++11 support as of GCC 4.6.0, __GLIBCXX__ 340// 20110325, but maintenance releases in the 4.4 and 4.5 series followed 341// this date, so check for those versions by their date stamps. 342// https://gcc.gnu.org/onlinedocs/libstdc++/manual/abi.html#abi.versioning 343#if GTEST_LANG_CXX11 && \ 344 (!defined(__GLIBCXX__) || ( \ 345 __GLIBCXX__ >= 20110325ul && /* GCC >= 4.6.0 */ \ 346 /* Blacklist of patch releases of older branches: */ \ 347 __GLIBCXX__ != 20110416ul && /* GCC 4.4.6 */ \ 348 __GLIBCXX__ != 20120313ul && /* GCC 4.4.7 */ \ 349 __GLIBCXX__ != 20110428ul && /* GCC 4.5.3 */ \ 350 __GLIBCXX__ != 20120702ul)) /* GCC 4.5.4 */ 351# define GTEST_STDLIB_CXX11 1 352#endif 353 354// Only use C++11 library features if the library provides them. 355#if GTEST_STDLIB_CXX11 356# define GTEST_HAS_STD_BEGIN_AND_END_ 1 357# define GTEST_HAS_STD_FORWARD_LIST_ 1 358# define GTEST_HAS_STD_FUNCTION_ 1 359# define GTEST_HAS_STD_INITIALIZER_LIST_ 1 360# define GTEST_HAS_STD_MOVE_ 1 361# define GTEST_HAS_STD_SHARED_PTR_ 1 362# define GTEST_HAS_STD_TYPE_TRAITS_ 1 363# define GTEST_HAS_STD_UNIQUE_PTR_ 1 364#endif 365 366// C++11 specifies that <tuple> provides std::tuple. 367// Some platforms still might not have it, however. 368#if GTEST_LANG_CXX11 369# define GTEST_HAS_STD_TUPLE_ 1 370# if defined(__clang__) 371// Inspired by http://clang.llvm.org/docs/LanguageExtensions.html#__has_include 372# if defined(__has_include) && !__has_include(<tuple>) 373# undef GTEST_HAS_STD_TUPLE_ 374# endif 375# elif defined(_MSC_VER) 376// Inspired by boost/config/stdlib/dinkumware.hpp 377# if defined(_CPPLIB_VER) && _CPPLIB_VER < 520 378# undef GTEST_HAS_STD_TUPLE_ 379# endif 380# elif defined(__GLIBCXX__) 381// Inspired by boost/config/stdlib/libstdcpp3.hpp, 382// http://gcc.gnu.org/gcc-4.2/changes.html and 383// http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt01ch01.html#manual.intro.status.standard.200x 384# if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 2) 385# undef GTEST_HAS_STD_TUPLE_ 386# endif 387# endif 388#endif 389 390// Brings in definitions for functions used in the testing::internal::posix 391// namespace (read, write, close, chdir, isatty, stat). We do not currently 392// use them on Windows Mobile. 393#if GTEST_OS_WINDOWS 394# if !GTEST_OS_WINDOWS_MOBILE 395# include <direct.h> 396# include <io.h> 397# endif 398// In order to avoid having to include <windows.h>, use forward declaration 399// assuming CRITICAL_SECTION is a typedef of _RTL_CRITICAL_SECTION. 400// This assumption is verified by 401// WindowsTypesTest.CRITICAL_SECTIONIs_RTL_CRITICAL_SECTION. 402struct _RTL_CRITICAL_SECTION; 403#else 404// This assumes that non-Windows OSes provide unistd.h. For OSes where this 405// is not the case, we need to include headers that provide the functions 406// mentioned above. 407# include <unistd.h> 408# include <strings.h> 409#endif // GTEST_OS_WINDOWS 410 411#if GTEST_OS_LINUX_ANDROID 412// Used to define __ANDROID_API__ matching the target NDK API level. 413# include <android/api-level.h> // NOLINT 414#endif 415 416// Defines this to true iff Google Test can use POSIX regular expressions. 417#ifndef GTEST_HAS_POSIX_RE 418# if GTEST_OS_LINUX_ANDROID 419// On Android, <regex.h> is only available starting with Gingerbread. 420# define GTEST_HAS_POSIX_RE (__ANDROID_API__ >= 9) 421# else 422# define GTEST_HAS_POSIX_RE (!GTEST_OS_WINDOWS) 423# endif 424#endif 425 426#if GTEST_USES_PCRE 427// The appropriate headers have already been included. 428 429#elif GTEST_HAS_POSIX_RE 430 431// On some platforms, <regex.h> needs someone to define size_t, and 432// won't compile otherwise. We can #include it here as we already 433// included <stdlib.h>, which is guaranteed to define size_t through 434// <stddef.h>. 435# include <regex.h> // NOLINT 436 437# define GTEST_USES_POSIX_RE 1 438 439#elif GTEST_OS_WINDOWS 440 441// <regex.h> is not available on Windows. Use our own simple regex 442// implementation instead. 443# define GTEST_USES_SIMPLE_RE 1 444 445#else 446 447// <regex.h> may not be available on this platform. Use our own 448// simple regex implementation instead. 449# define GTEST_USES_SIMPLE_RE 1 450 451#endif // GTEST_USES_PCRE 452 453#ifndef GTEST_HAS_EXCEPTIONS 454// The user didn't tell us whether exceptions are enabled, so we need 455// to figure it out. 456# if defined(_MSC_VER) || defined(__BORLANDC__) 457// MSVC's and C++Builder's implementations of the STL use the _HAS_EXCEPTIONS 458// macro to enable exceptions, so we'll do the same. 459// Assumes that exceptions are enabled by default. 460# ifndef _HAS_EXCEPTIONS 461# define _HAS_EXCEPTIONS 1 462# endif // _HAS_EXCEPTIONS 463# define GTEST_HAS_EXCEPTIONS _HAS_EXCEPTIONS 464# elif defined(__clang__) 465// clang defines __EXCEPTIONS iff exceptions are enabled before clang 220714, 466// but iff cleanups are enabled after that. In Obj-C++ files, there can be 467// cleanups for ObjC exceptions which also need cleanups, even if C++ exceptions 468// are disabled. clang has __has_feature(cxx_exceptions) which checks for C++ 469// exceptions starting at clang r206352, but which checked for cleanups prior to 470// that. To reliably check for C++ exception availability with clang, check for 471// __EXCEPTIONS && __has_feature(cxx_exceptions). 472# define GTEST_HAS_EXCEPTIONS (__EXCEPTIONS && __has_feature(cxx_exceptions)) 473# elif defined(__GNUC__) && __EXCEPTIONS 474// gcc defines __EXCEPTIONS to 1 iff exceptions are enabled. 475# define GTEST_HAS_EXCEPTIONS 1 476# elif defined(__SUNPRO_CC) 477// Sun Pro CC supports exceptions. However, there is no compile-time way of 478// detecting whether they are enabled or not. Therefore, we assume that 479// they are enabled unless the user tells us otherwise. 480# define GTEST_HAS_EXCEPTIONS 1 481# elif defined(__IBMCPP__) && __EXCEPTIONS 482// xlC defines __EXCEPTIONS to 1 iff exceptions are enabled. 483# define GTEST_HAS_EXCEPTIONS 1 484# elif defined(__HP_aCC) 485// Exception handling is in effect by default in HP aCC compiler. It has to 486// be turned of by +noeh compiler option if desired. 487# define GTEST_HAS_EXCEPTIONS 1 488# else 489// For other compilers, we assume exceptions are disabled to be 490// conservative. 491# define GTEST_HAS_EXCEPTIONS 0 492# endif // defined(_MSC_VER) || defined(__BORLANDC__) 493#endif // GTEST_HAS_EXCEPTIONS 494 495#if !defined(GTEST_HAS_STD_STRING) 496// Even though we don't use this macro any longer, we keep it in case 497// some clients still depend on it. 498# define GTEST_HAS_STD_STRING 1 499#elif !GTEST_HAS_STD_STRING 500// The user told us that ::std::string isn't available. 501# error "Google Test cannot be used where ::std::string isn't available." 502#endif // !defined(GTEST_HAS_STD_STRING) 503 504#ifndef GTEST_HAS_GLOBAL_STRING 505// The user didn't tell us whether ::string is available, so we need 506// to figure it out. 507 508# define GTEST_HAS_GLOBAL_STRING 0 509 510#endif // GTEST_HAS_GLOBAL_STRING 511 512#ifndef GTEST_HAS_STD_WSTRING 513// The user didn't tell us whether ::std::wstring is available, so we need 514// to figure it out. 515// TODO(wan@google.com): uses autoconf to detect whether ::std::wstring 516// is available. 517 518// Cygwin 1.7 and below doesn't support ::std::wstring. 519// Solaris' libc++ doesn't support it either. Android has 520// no support for it at least as recent as Froyo (2.2). 521# define GTEST_HAS_STD_WSTRING \ 522 (!(GTEST_OS_LINUX_ANDROID || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS)) 523 524#endif // GTEST_HAS_STD_WSTRING 525 526#ifndef GTEST_HAS_GLOBAL_WSTRING 527// The user didn't tell us whether ::wstring is available, so we need 528// to figure it out. 529# define GTEST_HAS_GLOBAL_WSTRING \ 530 (GTEST_HAS_STD_WSTRING && GTEST_HAS_GLOBAL_STRING) 531#endif // GTEST_HAS_GLOBAL_WSTRING 532 533// Determines whether RTTI is available. 534#ifndef GTEST_HAS_RTTI 535// The user didn't tell us whether RTTI is enabled, so we need to 536// figure it out. 537 538# ifdef _MSC_VER 539 540# ifdef _CPPRTTI // MSVC defines this macro iff RTTI is enabled. 541# define GTEST_HAS_RTTI 1 542# else 543# define GTEST_HAS_RTTI 0 544# endif 545 546// Starting with version 4.3.2, gcc defines __GXX_RTTI iff RTTI is enabled. 547# elif defined(__GNUC__) && (GTEST_GCC_VER_ >= 40302) 548 549# ifdef __GXX_RTTI 550// When building against STLport with the Android NDK and with 551// -frtti -fno-exceptions, the build fails at link time with undefined 552// references to __cxa_bad_typeid. Note sure if STL or toolchain bug, 553// so disable RTTI when detected. 554# if GTEST_OS_LINUX_ANDROID && defined(_STLPORT_MAJOR) && \ 555 !defined(__EXCEPTIONS) 556# define GTEST_HAS_RTTI 0 557# else 558# define GTEST_HAS_RTTI 1 559# endif // GTEST_OS_LINUX_ANDROID && __STLPORT_MAJOR && !__EXCEPTIONS 560# else 561# define GTEST_HAS_RTTI 0 562# endif // __GXX_RTTI 563 564// Clang defines __GXX_RTTI starting with version 3.0, but its manual recommends 565// using has_feature instead. has_feature(cxx_rtti) is supported since 2.7, the 566// first version with C++ support. 567# elif defined(__clang__) 568 569# define GTEST_HAS_RTTI __has_feature(cxx_rtti) 570 571// Starting with version 9.0 IBM Visual Age defines __RTTI_ALL__ to 1 if 572// both the typeid and dynamic_cast features are present. 573# elif defined(__IBMCPP__) && (__IBMCPP__ >= 900) 574 575# ifdef __RTTI_ALL__ 576# define GTEST_HAS_RTTI 1 577# else 578# define GTEST_HAS_RTTI 0 579# endif 580 581# else 582 583// For all other compilers, we assume RTTI is enabled. 584# define GTEST_HAS_RTTI 1 585 586# endif // _MSC_VER 587 588#endif // GTEST_HAS_RTTI 589 590// It's this header's responsibility to #include <typeinfo> when RTTI 591// is enabled. 592#if GTEST_HAS_RTTI 593# include <typeinfo> 594#endif 595 596// Determines whether Google Test can use the pthreads library. 597#ifndef GTEST_HAS_PTHREAD 598// The user didn't tell us explicitly, so we make reasonable assumptions about 599// which platforms have pthreads support. 600// 601// To disable threading support in Google Test, add -DGTEST_HAS_PTHREAD=0 602// to your compiler flags. 603# define GTEST_HAS_PTHREAD (GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_HPUX \ 604 || GTEST_OS_QNX || GTEST_OS_FREEBSD || GTEST_OS_NACL) 605#endif // GTEST_HAS_PTHREAD 606 607#if GTEST_HAS_PTHREAD 608// gtest-port.h guarantees to #include <pthread.h> when GTEST_HAS_PTHREAD is 609// true. 610# include <pthread.h> // NOLINT 611 612// For timespec and nanosleep, used below. 613# include <time.h> // NOLINT 614#endif 615 616// Determines if hash_map/hash_set are available. 617// Only used for testing against those containers. 618#if !defined(GTEST_HAS_HASH_MAP_) 619# if _MSC_VER 620# define GTEST_HAS_HASH_MAP_ 1 // Indicates that hash_map is available. 621# define GTEST_HAS_HASH_SET_ 1 // Indicates that hash_set is available. 622# endif // _MSC_VER 623#endif // !defined(GTEST_HAS_HASH_MAP_) 624 625// Determines whether Google Test can use tr1/tuple. You can define 626// this macro to 0 to prevent Google Test from using tuple (any 627// feature depending on tuple with be disabled in this mode). 628#ifndef GTEST_HAS_TR1_TUPLE 629# if GTEST_OS_LINUX_ANDROID && defined(_STLPORT_MAJOR) 630// STLport, provided with the Android NDK, has neither <tr1/tuple> or <tuple>. 631# define GTEST_HAS_TR1_TUPLE 0 632# else 633// The user didn't tell us not to do it, so we assume it's OK. 634# define GTEST_HAS_TR1_TUPLE 1 635# endif 636#endif // GTEST_HAS_TR1_TUPLE 637 638// Determines whether Google Test's own tr1 tuple implementation 639// should be used. 640#ifndef GTEST_USE_OWN_TR1_TUPLE 641// The user didn't tell us, so we need to figure it out. 642 643// We use our own TR1 tuple if we aren't sure the user has an 644// implementation of it already. At this time, libstdc++ 4.0.0+ and 645// MSVC 2010 are the only mainstream standard libraries that come 646// with a TR1 tuple implementation. NVIDIA's CUDA NVCC compiler 647// pretends to be GCC by defining __GNUC__ and friends, but cannot 648// compile GCC's tuple implementation. MSVC 2008 (9.0) provides TR1 649// tuple in a 323 MB Feature Pack download, which we cannot assume the 650// user has. QNX's QCC compiler is a modified GCC but it doesn't 651// support TR1 tuple. libc++ only provides std::tuple, in C++11 mode, 652// and it can be used with some compilers that define __GNUC__. 653# if (defined(__GNUC__) && !defined(__CUDACC__) && (GTEST_GCC_VER_ >= 40000) \ 654 && !GTEST_OS_QNX && !defined(_LIBCPP_VERSION)) || _MSC_VER >= 1600 655# define GTEST_ENV_HAS_TR1_TUPLE_ 1 656# endif 657 658// C++11 specifies that <tuple> provides std::tuple. Use that if gtest is used 659// in C++11 mode and libstdc++ isn't very old (binaries targeting OS X 10.6 660// can build with clang but need to use gcc4.2's libstdc++). 661# if GTEST_LANG_CXX11 && (!defined(__GLIBCXX__) || __GLIBCXX__ > 20110325) 662# define GTEST_ENV_HAS_STD_TUPLE_ 1 663# endif 664 665# if GTEST_ENV_HAS_TR1_TUPLE_ || GTEST_ENV_HAS_STD_TUPLE_ 666# define GTEST_USE_OWN_TR1_TUPLE 0 667# else 668# define GTEST_USE_OWN_TR1_TUPLE 1 669# endif 670 671#endif // GTEST_USE_OWN_TR1_TUPLE 672 673// To avoid conditional compilation everywhere, we make it 674// gtest-port.h's responsibility to #include the header implementing 675// tuple. 676#if GTEST_HAS_STD_TUPLE_ 677# include <tuple> // IWYU pragma: export 678# define GTEST_TUPLE_NAMESPACE_ ::std 679#endif // GTEST_HAS_STD_TUPLE_ 680 681// We include tr1::tuple even if std::tuple is available to define printers for 682// them. 683#if GTEST_HAS_TR1_TUPLE 684# ifndef GTEST_TUPLE_NAMESPACE_ 685# define GTEST_TUPLE_NAMESPACE_ ::std::tr1 686# endif // GTEST_TUPLE_NAMESPACE_ 687 688# if GTEST_USE_OWN_TR1_TUPLE 689# include "gtest/internal/gtest-tuple.h" // IWYU pragma: export // NOLINT 690# elif GTEST_ENV_HAS_STD_TUPLE_ 691# include <tuple> 692// C++11 puts its tuple into the ::std namespace rather than 693// ::std::tr1. gtest expects tuple to live in ::std::tr1, so put it there. 694// This causes undefined behavior, but supported compilers react in 695// the way we intend. 696namespace std { 697namespace tr1 { 698using ::std::get; 699using ::std::make_tuple; 700using ::std::tuple; 701using ::std::tuple_element; 702using ::std::tuple_size; 703} 704} 705 706# elif GTEST_OS_SYMBIAN 707 708// On Symbian, BOOST_HAS_TR1_TUPLE causes Boost's TR1 tuple library to 709// use STLport's tuple implementation, which unfortunately doesn't 710// work as the copy of STLport distributed with Symbian is incomplete. 711// By making sure BOOST_HAS_TR1_TUPLE is undefined, we force Boost to 712// use its own tuple implementation. 713# ifdef BOOST_HAS_TR1_TUPLE 714# undef BOOST_HAS_TR1_TUPLE 715# endif // BOOST_HAS_TR1_TUPLE 716 717// This prevents <boost/tr1/detail/config.hpp>, which defines 718// BOOST_HAS_TR1_TUPLE, from being #included by Boost's <tuple>. 719# define BOOST_TR1_DETAIL_CONFIG_HPP_INCLUDED 720# include <tuple> // IWYU pragma: export // NOLINT 721 722# elif defined(__GNUC__) && (GTEST_GCC_VER_ >= 40000) 723// GCC 4.0+ implements tr1/tuple in the <tr1/tuple> header. This does 724// not conform to the TR1 spec, which requires the header to be <tuple>. 725 726# if !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302 727// Until version 4.3.2, gcc has a bug that causes <tr1/functional>, 728// which is #included by <tr1/tuple>, to not compile when RTTI is 729// disabled. _TR1_FUNCTIONAL is the header guard for 730// <tr1/functional>. Hence the following #define is a hack to prevent 731// <tr1/functional> from being included. 732# define _TR1_FUNCTIONAL 1 733# include <tr1/tuple> 734# undef _TR1_FUNCTIONAL // Allows the user to #include 735 // <tr1/functional> if he chooses to. 736# else 737# include <tr1/tuple> // NOLINT 738# endif // !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302 739 740# else 741// If the compiler is not GCC 4.0+, we assume the user is using a 742// spec-conforming TR1 implementation. 743# include <tuple> // IWYU pragma: export // NOLINT 744# endif // GTEST_USE_OWN_TR1_TUPLE 745 746#endif // GTEST_HAS_TR1_TUPLE 747 748// Determines whether clone(2) is supported. 749// Usually it will only be available on Linux, excluding 750// Linux on the Itanium architecture. 751// Also see http://linux.die.net/man/2/clone. 752#ifndef GTEST_HAS_CLONE 753// The user didn't tell us, so we need to figure it out. 754 755# if GTEST_OS_LINUX && !defined(__ia64__) 756# if GTEST_OS_LINUX_ANDROID 757// On Android, clone() is only available on ARM starting with Gingerbread. 758# if defined(__arm__) && __ANDROID_API__ >= 9 759# define GTEST_HAS_CLONE 1 760# else 761# define GTEST_HAS_CLONE 0 762# endif 763# else 764# define GTEST_HAS_CLONE 1 765# endif 766# else 767# define GTEST_HAS_CLONE 0 768# endif // GTEST_OS_LINUX && !defined(__ia64__) 769 770#endif // GTEST_HAS_CLONE 771 772// Determines whether to support stream redirection. This is used to test 773// output correctness and to implement death tests. 774#ifndef GTEST_HAS_STREAM_REDIRECTION 775// By default, we assume that stream redirection is supported on all 776// platforms except known mobile ones. 777# if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_SYMBIAN || \ 778 GTEST_OS_WINDOWS_PHONE || GTEST_OS_WINDOWS_RT 779# define GTEST_HAS_STREAM_REDIRECTION 0 780# else 781# define GTEST_HAS_STREAM_REDIRECTION 1 782# endif // !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_SYMBIAN 783#endif // GTEST_HAS_STREAM_REDIRECTION 784 785// Determines whether to support death tests. 786// Google Test does not support death tests for VC 7.1 and earlier as 787// abort() in a VC 7.1 application compiled as GUI in debug config 788// pops up a dialog window that cannot be suppressed programmatically. 789#if (GTEST_OS_LINUX || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS || \ 790 (GTEST_OS_MAC && !GTEST_OS_IOS) || \ 791 (GTEST_OS_WINDOWS_DESKTOP && _MSC_VER >= 1400) || \ 792 GTEST_OS_WINDOWS_MINGW || GTEST_OS_AIX || GTEST_OS_HPUX || \ 793 GTEST_OS_OPENBSD || GTEST_OS_QNX || GTEST_OS_FREEBSD) 794# define GTEST_HAS_DEATH_TEST 1 795#endif 796 797// We don't support MSVC 7.1 with exceptions disabled now. Therefore 798// all the compilers we care about are adequate for supporting 799// value-parameterized tests. 800#define GTEST_HAS_PARAM_TEST 1 801 802// Determines whether to support type-driven tests. 803 804// Typed tests need <typeinfo> and variadic macros, which GCC, VC++ 8.0, 805// Sun Pro CC, IBM Visual Age, and HP aCC support. 806#if defined(__GNUC__) || (_MSC_VER >= 1400) || defined(__SUNPRO_CC) || \ 807 defined(__IBMCPP__) || defined(__HP_aCC) 808# define GTEST_HAS_TYPED_TEST 1 809# define GTEST_HAS_TYPED_TEST_P 1 810#endif 811 812// Determines whether to support Combine(). This only makes sense when 813// value-parameterized tests are enabled. The implementation doesn't 814// work on Sun Studio since it doesn't understand templated conversion 815// operators. 816#if GTEST_HAS_PARAM_TEST && GTEST_HAS_TR1_TUPLE && !defined(__SUNPRO_CC) 817# define GTEST_HAS_COMBINE 1 818#endif 819 820// Determines whether the system compiler uses UTF-16 for encoding wide strings. 821#define GTEST_WIDE_STRING_USES_UTF16_ \ 822 (GTEST_OS_WINDOWS || GTEST_OS_CYGWIN || GTEST_OS_SYMBIAN || GTEST_OS_AIX) 823 824// Determines whether test results can be streamed to a socket. 825#if GTEST_OS_LINUX 826# define GTEST_CAN_STREAM_RESULTS_ 1 827#endif 828 829// Defines some utility macros. 830 831// The GNU compiler emits a warning if nested "if" statements are followed by 832// an "else" statement and braces are not used to explicitly disambiguate the 833// "else" binding. This leads to problems with code like: 834// 835// if (gate) 836// ASSERT_*(condition) << "Some message"; 837// 838// The "switch (0) case 0:" idiom is used to suppress this. 839#ifdef __INTEL_COMPILER 840# define GTEST_AMBIGUOUS_ELSE_BLOCKER_ 841#else 842# define GTEST_AMBIGUOUS_ELSE_BLOCKER_ switch (0) case 0: default: // NOLINT 843#endif 844 845// Use this annotation at the end of a struct/class definition to 846// prevent the compiler from optimizing away instances that are never 847// used. This is useful when all interesting logic happens inside the 848// c'tor and / or d'tor. Example: 849// 850// struct Foo { 851// Foo() { ... } 852// } GTEST_ATTRIBUTE_UNUSED_; 853// 854// Also use it after a variable or parameter declaration to tell the 855// compiler the variable/parameter does not have to be used. 856#if defined(__GNUC__) && !defined(COMPILER_ICC) 857# define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused)) 858#elif defined(__clang__) 859# if __has_attribute(unused) 860# define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused)) 861# endif 862#endif 863#ifndef GTEST_ATTRIBUTE_UNUSED_ 864# define GTEST_ATTRIBUTE_UNUSED_ 865#endif 866 867// A macro to disallow operator= 868// This should be used in the private: declarations for a class. 869#define GTEST_DISALLOW_ASSIGN_(type)\ 870 void operator=(type const &) 871 872// A macro to disallow copy constructor and operator= 873// This should be used in the private: declarations for a class. 874#define GTEST_DISALLOW_COPY_AND_ASSIGN_(type)\ 875 type(type const &);\ 876 GTEST_DISALLOW_ASSIGN_(type) 877 878// Tell the compiler to warn about unused return values for functions declared 879// with this macro. The macro should be used on function declarations 880// following the argument list: 881// 882// Sprocket* AllocateSprocket() GTEST_MUST_USE_RESULT_; 883#if defined(__GNUC__) && (GTEST_GCC_VER_ >= 30400) && !defined(COMPILER_ICC) 884# define GTEST_MUST_USE_RESULT_ __attribute__ ((warn_unused_result)) 885#else 886# define GTEST_MUST_USE_RESULT_ 887#endif // __GNUC__ && (GTEST_GCC_VER_ >= 30400) && !COMPILER_ICC 888 889// MS C++ compiler emits warning when a conditional expression is compile time 890// constant. In some contexts this warning is false positive and needs to be 891// suppressed. Use the following two macros in such cases: 892// 893// GTEST_INTENTIONAL_CONST_COND_PUSH_() 894// while (true) { 895// GTEST_INTENTIONAL_CONST_COND_POP_() 896// } 897# define GTEST_INTENTIONAL_CONST_COND_PUSH_() \ 898 GTEST_DISABLE_MSC_WARNINGS_PUSH_(4127) 899# define GTEST_INTENTIONAL_CONST_COND_POP_() \ 900 GTEST_DISABLE_MSC_WARNINGS_POP_() 901 902// Determine whether the compiler supports Microsoft's Structured Exception 903// Handling. This is supported by several Windows compilers but generally 904// does not exist on any other system. 905#ifndef GTEST_HAS_SEH 906// The user didn't tell us, so we need to figure it out. 907 908# if defined(_MSC_VER) || defined(__BORLANDC__) 909// These two compilers are known to support SEH. 910# define GTEST_HAS_SEH 1 911# else 912// Assume no SEH. 913# define GTEST_HAS_SEH 0 914# endif 915 916#define GTEST_IS_THREADSAFE \ 917 (GTEST_HAS_MUTEX_AND_THREAD_LOCAL_ \ 918 || (GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT) \ 919 || GTEST_HAS_PTHREAD) 920 921#endif // GTEST_HAS_SEH 922 923#ifdef _MSC_VER 924# if GTEST_LINKED_AS_SHARED_LIBRARY 925# define GTEST_API_ __declspec(dllimport) 926# elif GTEST_CREATE_SHARED_LIBRARY 927# define GTEST_API_ __declspec(dllexport) 928# endif 929#elif __GNUC__ >= 4 || defined(__clang__) 930# define GTEST_API_ __attribute__((visibility ("default"))) 931#endif // _MSC_VER 932 933#ifndef GTEST_API_ 934# define GTEST_API_ 935#endif 936 937#ifdef __GNUC__ 938// Ask the compiler to never inline a given function. 939# define GTEST_NO_INLINE_ __attribute__((noinline)) 940#else 941# define GTEST_NO_INLINE_ 942#endif 943 944// _LIBCPP_VERSION is defined by the libc++ library from the LLVM project. 945#if defined(__GLIBCXX__) || defined(_LIBCPP_VERSION) 946# define GTEST_HAS_CXXABI_H_ 1 947#else 948# define GTEST_HAS_CXXABI_H_ 0 949#endif 950 951// A function level attribute to disable checking for use of uninitialized 952// memory when built with MemorySanitizer. 953#if defined(__clang__) 954# if __has_feature(memory_sanitizer) 955# define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_ \ 956 __attribute__((no_sanitize_memory)) 957# else 958# define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_ 959# endif // __has_feature(memory_sanitizer) 960#else 961# define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_ 962#endif // __clang__ 963 964// A function level attribute to disable AddressSanitizer instrumentation. 965#if defined(__clang__) 966# if __has_feature(address_sanitizer) 967# define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_ \ 968 __attribute__((no_sanitize_address)) 969# else 970# define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_ 971# endif // __has_feature(address_sanitizer) 972#else 973# define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_ 974#endif // __clang__ 975 976// A function level attribute to disable ThreadSanitizer instrumentation. 977#if defined(__clang__) 978# if __has_feature(thread_sanitizer) 979# define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_ \ 980 __attribute__((no_sanitize_thread)) 981# else 982# define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_ 983# endif // __has_feature(thread_sanitizer) 984#else 985# define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_ 986#endif // __clang__ 987 988namespace testing { 989 990class Message; 991 992#if defined(GTEST_TUPLE_NAMESPACE_) 993// Import tuple and friends into the ::testing namespace. 994// It is part of our interface, having them in ::testing allows us to change 995// their types as needed. 996using GTEST_TUPLE_NAMESPACE_::get; 997using GTEST_TUPLE_NAMESPACE_::make_tuple; 998using GTEST_TUPLE_NAMESPACE_::tuple; 999using GTEST_TUPLE_NAMESPACE_::tuple_size; 1000using GTEST_TUPLE_NAMESPACE_::tuple_element; 1001#endif // defined(GTEST_TUPLE_NAMESPACE_) 1002 1003namespace internal { 1004 1005// A secret type that Google Test users don't know about. It has no 1006// definition on purpose. Therefore it's impossible to create a 1007// Secret object, which is what we want. 1008class Secret; 1009 1010// The GTEST_COMPILE_ASSERT_ macro can be used to verify that a compile time 1011// expression is true. For example, you could use it to verify the 1012// size of a static array: 1013// 1014// GTEST_COMPILE_ASSERT_(GTEST_ARRAY_SIZE_(names) == NUM_NAMES, 1015// names_incorrect_size); 1016// 1017// or to make sure a struct is smaller than a certain size: 1018// 1019// GTEST_COMPILE_ASSERT_(sizeof(foo) < 128, foo_too_large); 1020// 1021// The second argument to the macro is the name of the variable. If 1022// the expression is false, most compilers will issue a warning/error 1023// containing the name of the variable. 1024 1025#if GTEST_LANG_CXX11 1026# define GTEST_COMPILE_ASSERT_(expr, msg) static_assert(expr, #msg) 1027#else // !GTEST_LANG_CXX11 1028template <bool> 1029 struct CompileAssert { 1030}; 1031 1032# define GTEST_COMPILE_ASSERT_(expr, msg) \ 1033 typedef ::testing::internal::CompileAssert<(static_cast<bool>(expr))> \ 1034 msg[static_cast<bool>(expr) ? 1 : -1] GTEST_ATTRIBUTE_UNUSED_ 1035#endif // !GTEST_LANG_CXX11 1036 1037// Implementation details of GTEST_COMPILE_ASSERT_: 1038// 1039// (In C++11, we simply use static_assert instead of the following) 1040// 1041// - GTEST_COMPILE_ASSERT_ works by defining an array type that has -1 1042// elements (and thus is invalid) when the expression is false. 1043// 1044// - The simpler definition 1045// 1046// #define GTEST_COMPILE_ASSERT_(expr, msg) typedef char msg[(expr) ? 1 : -1] 1047// 1048// does not work, as gcc supports variable-length arrays whose sizes 1049// are determined at run-time (this is gcc's extension and not part 1050// of the C++ standard). As a result, gcc fails to reject the 1051// following code with the simple definition: 1052// 1053// int foo; 1054// GTEST_COMPILE_ASSERT_(foo, msg); // not supposed to compile as foo is 1055// // not a compile-time constant. 1056// 1057// - By using the type CompileAssert<(bool(expr))>, we ensures that 1058// expr is a compile-time constant. (Template arguments must be 1059// determined at compile-time.) 1060// 1061// - The outter parentheses in CompileAssert<(bool(expr))> are necessary 1062// to work around a bug in gcc 3.4.4 and 4.0.1. If we had written 1063// 1064// CompileAssert<bool(expr)> 1065// 1066// instead, these compilers will refuse to compile 1067// 1068// GTEST_COMPILE_ASSERT_(5 > 0, some_message); 1069// 1070// (They seem to think the ">" in "5 > 0" marks the end of the 1071// template argument list.) 1072// 1073// - The array size is (bool(expr) ? 1 : -1), instead of simply 1074// 1075// ((expr) ? 1 : -1). 1076// 1077// This is to avoid running into a bug in MS VC 7.1, which 1078// causes ((0.0) ? 1 : -1) to incorrectly evaluate to 1. 1079 1080// StaticAssertTypeEqHelper is used by StaticAssertTypeEq defined in gtest.h. 1081// 1082// This template is declared, but intentionally undefined. 1083template <typename T1, typename T2> 1084struct StaticAssertTypeEqHelper; 1085 1086template <typename T> 1087struct StaticAssertTypeEqHelper<T, T> { 1088 enum { value = true }; 1089}; 1090 1091// Evaluates to the number of elements in 'array'. 1092#define GTEST_ARRAY_SIZE_(array) (sizeof(array) / sizeof(array[0])) 1093 1094#if GTEST_HAS_GLOBAL_STRING 1095typedef ::string string; 1096#else 1097typedef ::std::string string; 1098#endif // GTEST_HAS_GLOBAL_STRING 1099 1100#if GTEST_HAS_GLOBAL_WSTRING 1101typedef ::wstring wstring; 1102#elif GTEST_HAS_STD_WSTRING 1103typedef ::std::wstring wstring; 1104#endif // GTEST_HAS_GLOBAL_WSTRING 1105 1106// A helper for suppressing warnings on constant condition. It just 1107// returns 'condition'. 1108GTEST_API_ bool IsTrue(bool condition); 1109 1110// Defines scoped_ptr. 1111 1112// This implementation of scoped_ptr is PARTIAL - it only contains 1113// enough stuff to satisfy Google Test's need. 1114template <typename T> 1115class scoped_ptr { 1116 public: 1117 typedef T element_type; 1118 1119 explicit scoped_ptr(T* p = NULL) : ptr_(p) {} 1120 ~scoped_ptr() { reset(); } 1121 1122 T& operator*() const { return *ptr_; } 1123 T* operator->() const { return ptr_; } 1124 T* get() const { return ptr_; } 1125 1126 T* release() { 1127 T* const ptr = ptr_; 1128 ptr_ = NULL; 1129 return ptr; 1130 } 1131 1132 void reset(T* p = NULL) { 1133 if (p != ptr_) { 1134 if (IsTrue(sizeof(T) > 0)) { // Makes sure T is a complete type. 1135 delete ptr_; 1136 } 1137 ptr_ = p; 1138 } 1139 } 1140 1141 friend void swap(scoped_ptr& a, scoped_ptr& b) { 1142 using std::swap; 1143 swap(a.ptr_, b.ptr_); 1144 } 1145 1146 private: 1147 T* ptr_; 1148 1149 GTEST_DISALLOW_COPY_AND_ASSIGN_(scoped_ptr); 1150}; 1151 1152// Defines RE. 1153 1154// A simple C++ wrapper for <regex.h>. It uses the POSIX Extended 1155// Regular Expression syntax. 1156class GTEST_API_ RE { 1157 public: 1158 // A copy constructor is required by the Standard to initialize object 1159 // references from r-values. 1160 RE(const RE& other) { Init(other.pattern()); } 1161 1162 // Constructs an RE from a string. 1163 RE(const ::std::string& regex) { Init(regex.c_str()); } // NOLINT 1164 1165#if GTEST_HAS_GLOBAL_STRING 1166 1167 RE(const ::string& regex) { Init(regex.c_str()); } // NOLINT 1168 1169#endif // GTEST_HAS_GLOBAL_STRING 1170 1171 RE(const char* regex) { Init(regex); } // NOLINT 1172 ~RE(); 1173 1174 // Returns the string representation of the regex. 1175 const char* pattern() const { return pattern_; } 1176 1177 // FullMatch(str, re) returns true iff regular expression re matches 1178 // the entire str. 1179 // PartialMatch(str, re) returns true iff regular expression re 1180 // matches a substring of str (including str itself). 1181 // 1182 // TODO(wan@google.com): make FullMatch() and PartialMatch() work 1183 // when str contains NUL characters. 1184 static bool FullMatch(const ::std::string& str, const RE& re) { 1185 return FullMatch(str.c_str(), re); 1186 } 1187 static bool PartialMatch(const ::std::string& str, const RE& re) { 1188 return PartialMatch(str.c_str(), re); 1189 } 1190 1191#if GTEST_HAS_GLOBAL_STRING 1192 1193 static bool FullMatch(const ::string& str, const RE& re) { 1194 return FullMatch(str.c_str(), re); 1195 } 1196 static bool PartialMatch(const ::string& str, const RE& re) { 1197 return PartialMatch(str.c_str(), re); 1198 } 1199 1200#endif // GTEST_HAS_GLOBAL_STRING 1201 1202 static bool FullMatch(const char* str, const RE& re); 1203 static bool PartialMatch(const char* str, const RE& re); 1204 1205 private: 1206 void Init(const char* regex); 1207 1208 // We use a const char* instead of an std::string, as Google Test used to be 1209 // used where std::string is not available. TODO(wan@google.com): change to 1210 // std::string. 1211 const char* pattern_; 1212 bool is_valid_; 1213 1214#if GTEST_USES_POSIX_RE 1215 1216 regex_t full_regex_; // For FullMatch(). 1217 regex_t partial_regex_; // For PartialMatch(). 1218 1219#else // GTEST_USES_SIMPLE_RE 1220 1221 const char* full_pattern_; // For FullMatch(); 1222 1223#endif 1224 1225 GTEST_DISALLOW_ASSIGN_(RE); 1226}; 1227 1228// Formats a source file path and a line number as they would appear 1229// in an error message from the compiler used to compile this code. 1230GTEST_API_ ::std::string FormatFileLocation(const char* file, int line); 1231 1232// Formats a file location for compiler-independent XML output. 1233// Although this function is not platform dependent, we put it next to 1234// FormatFileLocation in order to contrast the two functions. 1235GTEST_API_ ::std::string FormatCompilerIndependentFileLocation(const char* file, 1236 int line); 1237 1238// Defines logging utilities: 1239// GTEST_LOG_(severity) - logs messages at the specified severity level. The 1240// message itself is streamed into the macro. 1241// LogToStderr() - directs all log messages to stderr. 1242// FlushInfoLog() - flushes informational log messages. 1243 1244enum GTestLogSeverity { 1245 GTEST_INFO, 1246 GTEST_WARNING, 1247 GTEST_ERROR, 1248 GTEST_FATAL 1249}; 1250 1251// Formats log entry severity, provides a stream object for streaming the 1252// log message, and terminates the message with a newline when going out of 1253// scope. 1254class GTEST_API_ GTestLog { 1255 public: 1256 GTestLog(GTestLogSeverity severity, const char* file, int line); 1257 1258 // Flushes the buffers and, if severity is GTEST_FATAL, aborts the program. 1259 ~GTestLog(); 1260 1261 ::std::ostream& GetStream() { return ::std::cerr; } 1262 1263 private: 1264 const GTestLogSeverity severity_; 1265 1266 GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestLog); 1267}; 1268 1269#if !defined(GTEST_LOG_) 1270 1271# define GTEST_LOG_(severity) \ 1272 ::testing::internal::GTestLog(::testing::internal::GTEST_##severity, \ 1273 __FILE__, __LINE__).GetStream() 1274 1275inline void LogToStderr() {} 1276inline void FlushInfoLog() { fflush(NULL); } 1277 1278#endif // !defined(GTEST_LOG_) 1279 1280#if !defined(GTEST_CHECK_) 1281// INTERNAL IMPLEMENTATION - DO NOT USE. 1282// 1283// GTEST_CHECK_ is an all-mode assert. It aborts the program if the condition 1284// is not satisfied. 1285// Synopsys: 1286// GTEST_CHECK_(boolean_condition); 1287// or 1288// GTEST_CHECK_(boolean_condition) << "Additional message"; 1289// 1290// This checks the condition and if the condition is not satisfied 1291// it prints message about the condition violation, including the 1292// condition itself, plus additional message streamed into it, if any, 1293// and then it aborts the program. It aborts the program irrespective of 1294// whether it is built in the debug mode or not. 1295# define GTEST_CHECK_(condition) \ 1296 GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ 1297 if (::testing::internal::IsTrue(condition)) \ 1298 ; \ 1299 else \ 1300 GTEST_LOG_(FATAL) << "Condition " #condition " failed. " 1301#endif // !defined(GTEST_CHECK_) 1302 1303// An all-mode assert to verify that the given POSIX-style function 1304// call returns 0 (indicating success). Known limitation: this 1305// doesn't expand to a balanced 'if' statement, so enclose the macro 1306// in {} if you need to use it as the only statement in an 'if' 1307// branch. 1308#define GTEST_CHECK_POSIX_SUCCESS_(posix_call) \ 1309 if (const int gtest_error = (posix_call)) \ 1310 GTEST_LOG_(FATAL) << #posix_call << "failed with error " \ 1311 << gtest_error 1312 1313#if GTEST_HAS_STD_MOVE_ 1314using std::move; 1315#else // GTEST_HAS_STD_MOVE_ 1316template <typename T> 1317const T& move(const T& t) { 1318 return t; 1319} 1320#endif // GTEST_HAS_STD_MOVE_ 1321 1322// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE. 1323// 1324// Use ImplicitCast_ as a safe version of static_cast for upcasting in 1325// the type hierarchy (e.g. casting a Foo* to a SuperclassOfFoo* or a 1326// const Foo*). When you use ImplicitCast_, the compiler checks that 1327// the cast is safe. Such explicit ImplicitCast_s are necessary in 1328// surprisingly many situations where C++ demands an exact type match 1329// instead of an argument type convertable to a target type. 1330// 1331// The syntax for using ImplicitCast_ is the same as for static_cast: 1332// 1333// ImplicitCast_<ToType>(expr) 1334// 1335// ImplicitCast_ would have been part of the C++ standard library, 1336// but the proposal was submitted too late. It will probably make 1337// its way into the language in the future. 1338// 1339// This relatively ugly name is intentional. It prevents clashes with 1340// similar functions users may have (e.g., implicit_cast). The internal 1341// namespace alone is not enough because the function can be found by ADL. 1342template<typename To> 1343inline To ImplicitCast_(To x) { return x; } 1344 1345// When you upcast (that is, cast a pointer from type Foo to type 1346// SuperclassOfFoo), it's fine to use ImplicitCast_<>, since upcasts 1347// always succeed. When you downcast (that is, cast a pointer from 1348// type Foo to type SubclassOfFoo), static_cast<> isn't safe, because 1349// how do you know the pointer is really of type SubclassOfFoo? It 1350// could be a bare Foo, or of type DifferentSubclassOfFoo. Thus, 1351// when you downcast, you should use this macro. In debug mode, we 1352// use dynamic_cast<> to double-check the downcast is legal (we die 1353// if it's not). In normal mode, we do the efficient static_cast<> 1354// instead. Thus, it's important to test in debug mode to make sure 1355// the cast is legal! 1356// This is the only place in the code we should use dynamic_cast<>. 1357// In particular, you SHOULDN'T be using dynamic_cast<> in order to 1358// do RTTI (eg code like this: 1359// if (dynamic_cast<Subclass1>(foo)) HandleASubclass1Object(foo); 1360// if (dynamic_cast<Subclass2>(foo)) HandleASubclass2Object(foo); 1361// You should design the code some other way not to need this. 1362// 1363// This relatively ugly name is intentional. It prevents clashes with 1364// similar functions users may have (e.g., down_cast). The internal 1365// namespace alone is not enough because the function can be found by ADL. 1366template<typename To, typename From> // use like this: DownCast_<T*>(foo); 1367inline To DownCast_(From* f) { // so we only accept pointers 1368 // Ensures that To is a sub-type of From *. This test is here only 1369 // for compile-time type checking, and has no overhead in an 1370 // optimized build at run-time, as it will be optimized away 1371 // completely. 1372 GTEST_INTENTIONAL_CONST_COND_PUSH_() 1373 if (false) { 1374 GTEST_INTENTIONAL_CONST_COND_POP_() 1375 const To to = NULL; 1376 ::testing::internal::ImplicitCast_<From*>(to); 1377 } 1378 1379#if GTEST_HAS_RTTI 1380 // RTTI: debug mode only! 1381 GTEST_CHECK_(f == NULL || dynamic_cast<To>(f) != NULL); 1382#endif 1383 return static_cast<To>(f); 1384} 1385 1386// Downcasts the pointer of type Base to Derived. 1387// Derived must be a subclass of Base. The parameter MUST 1388// point to a class of type Derived, not any subclass of it. 1389// When RTTI is available, the function performs a runtime 1390// check to enforce this. 1391template <class Derived, class Base> 1392Derived* CheckedDowncastToActualType(Base* base) { 1393#if GTEST_HAS_RTTI 1394 GTEST_CHECK_(typeid(*base) == typeid(Derived)); 1395#endif 1396 1397#if GTEST_HAS_DOWNCAST_ 1398 return ::down_cast<Derived*>(base); 1399#elif GTEST_HAS_RTTI 1400 return dynamic_cast<Derived*>(base); // NOLINT 1401#else 1402 return static_cast<Derived*>(base); // Poor man's downcast. 1403#endif 1404} 1405 1406#if GTEST_HAS_STREAM_REDIRECTION 1407 1408// Defines the stderr capturer: 1409// CaptureStdout - starts capturing stdout. 1410// GetCapturedStdout - stops capturing stdout and returns the captured string. 1411// CaptureStderr - starts capturing stderr. 1412// GetCapturedStderr - stops capturing stderr and returns the captured string. 1413// 1414GTEST_API_ void CaptureStdout(); 1415GTEST_API_ std::string GetCapturedStdout(); 1416GTEST_API_ void CaptureStderr(); 1417GTEST_API_ std::string GetCapturedStderr(); 1418 1419#endif // GTEST_HAS_STREAM_REDIRECTION 1420 1421// Returns a path to temporary directory. 1422GTEST_API_ std::string TempDir(); 1423 1424// Returns the size (in bytes) of a file. 1425GTEST_API_ size_t GetFileSize(FILE* file); 1426 1427// Reads the entire content of a file as a string. 1428GTEST_API_ std::string ReadEntireFile(FILE* file); 1429 1430// All command line arguments. 1431GTEST_API_ const ::std::vector<testing::internal::string>& GetArgvs(); 1432 1433#if GTEST_HAS_DEATH_TEST 1434 1435const ::std::vector<testing::internal::string>& GetInjectableArgvs(); 1436void SetInjectableArgvs(const ::std::vector<testing::internal::string>* 1437 new_argvs); 1438 1439 1440#endif // GTEST_HAS_DEATH_TEST 1441 1442// Defines synchronization primitives. 1443#if GTEST_IS_THREADSAFE 1444# if GTEST_HAS_PTHREAD 1445// Sleeps for (roughly) n milliseconds. This function is only for testing 1446// Google Test's own constructs. Don't use it in user tests, either 1447// directly or indirectly. 1448inline void SleepMilliseconds(int n) { 1449 const timespec time = { 1450 0, // 0 seconds. 1451 n * 1000L * 1000L, // And n ms. 1452 }; 1453 nanosleep(&time, NULL); 1454} 1455# endif // GTEST_HAS_PTHREAD 1456 1457# if GTEST_HAS_NOTIFICATION_ 1458// Notification has already been imported into the namespace. 1459// Nothing to do here. 1460 1461# elif GTEST_HAS_PTHREAD 1462// Allows a controller thread to pause execution of newly created 1463// threads until notified. Instances of this class must be created 1464// and destroyed in the controller thread. 1465// 1466// This class is only for testing Google Test's own constructs. Do not 1467// use it in user tests, either directly or indirectly. 1468class Notification { 1469 public: 1470 Notification() : notified_(false) { 1471 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_init(&mutex_, NULL)); 1472 } 1473 ~Notification() { 1474 pthread_mutex_destroy(&mutex_); 1475 } 1476 1477 // Notifies all threads created with this notification to start. Must 1478 // be called from the controller thread. 1479 void Notify() { 1480 pthread_mutex_lock(&mutex_); 1481 notified_ = true; 1482 pthread_mutex_unlock(&mutex_); 1483 } 1484 1485 // Blocks until the controller thread notifies. Must be called from a test 1486 // thread. 1487 void WaitForNotification() { 1488 for (;;) { 1489 pthread_mutex_lock(&mutex_); 1490 const bool notified = notified_; 1491 pthread_mutex_unlock(&mutex_); 1492 if (notified) 1493 break; 1494 SleepMilliseconds(10); 1495 } 1496 } 1497 1498 private: 1499 pthread_mutex_t mutex_; 1500 bool notified_; 1501 1502 GTEST_DISALLOW_COPY_AND_ASSIGN_(Notification); 1503}; 1504 1505# elif GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT 1506 1507GTEST_API_ void SleepMilliseconds(int n); 1508 1509// Provides leak-safe Windows kernel handle ownership. 1510// Used in death tests and in threading support. 1511class GTEST_API_ AutoHandle { 1512 public: 1513 // Assume that Win32 HANDLE type is equivalent to void*. Doing so allows us to 1514 // avoid including <windows.h> in this header file. Including <windows.h> is 1515 // undesirable because it defines a lot of symbols and macros that tend to 1516 // conflict with client code. This assumption is verified by 1517 // WindowsTypesTest.HANDLEIsVoidStar. 1518 typedef void* Handle; 1519 AutoHandle(); 1520 explicit AutoHandle(Handle handle); 1521 1522 ~AutoHandle(); 1523 1524 Handle Get() const; 1525 void Reset(); 1526 void Reset(Handle handle); 1527 1528 private: 1529 // Returns true iff the handle is a valid handle object that can be closed. 1530 bool IsCloseable() const; 1531 1532 Handle handle_; 1533 1534 GTEST_DISALLOW_COPY_AND_ASSIGN_(AutoHandle); 1535}; 1536 1537// Allows a controller thread to pause execution of newly created 1538// threads until notified. Instances of this class must be created 1539// and destroyed in the controller thread. 1540// 1541// This class is only for testing Google Test's own constructs. Do not 1542// use it in user tests, either directly or indirectly. 1543class GTEST_API_ Notification { 1544 public: 1545 Notification(); 1546 void Notify(); 1547 void WaitForNotification(); 1548 1549 private: 1550 AutoHandle event_; 1551 1552 GTEST_DISALLOW_COPY_AND_ASSIGN_(Notification); 1553}; 1554# endif // GTEST_HAS_NOTIFICATION_ 1555 1556// On MinGW, we can have both GTEST_OS_WINDOWS and GTEST_HAS_PTHREAD 1557// defined, but we don't want to use MinGW's pthreads implementation, which 1558// has conformance problems with some versions of the POSIX standard. 1559# if GTEST_HAS_PTHREAD && !GTEST_OS_WINDOWS_MINGW 1560 1561// As a C-function, ThreadFuncWithCLinkage cannot be templated itself. 1562// Consequently, it cannot select a correct instantiation of ThreadWithParam 1563// in order to call its Run(). Introducing ThreadWithParamBase as a 1564// non-templated base class for ThreadWithParam allows us to bypass this 1565// problem. 1566class ThreadWithParamBase { 1567 public: 1568 virtual ~ThreadWithParamBase() {} 1569 virtual void Run() = 0; 1570}; 1571 1572// pthread_create() accepts a pointer to a function type with the C linkage. 1573// According to the Standard (7.5/1), function types with different linkages 1574// are different even if they are otherwise identical. Some compilers (for 1575// example, SunStudio) treat them as different types. Since class methods 1576// cannot be defined with C-linkage we need to define a free C-function to 1577// pass into pthread_create(). 1578extern "C" inline void* ThreadFuncWithCLinkage(void* thread) { 1579 static_cast<ThreadWithParamBase*>(thread)->Run(); 1580 return NULL; 1581} 1582 1583// Helper class for testing Google Test's multi-threading constructs. 1584// To use it, write: 1585// 1586// void ThreadFunc(int param) { /* Do things with param */ } 1587// Notification thread_can_start; 1588// ... 1589// // The thread_can_start parameter is optional; you can supply NULL. 1590// ThreadWithParam<int> thread(&ThreadFunc, 5, &thread_can_start); 1591// thread_can_start.Notify(); 1592// 1593// These classes are only for testing Google Test's own constructs. Do 1594// not use them in user tests, either directly or indirectly. 1595template <typename T> 1596class ThreadWithParam : public ThreadWithParamBase { 1597 public: 1598 typedef void UserThreadFunc(T); 1599 1600 ThreadWithParam(UserThreadFunc* func, T param, Notification* thread_can_start) 1601 : func_(func), 1602 param_(param), 1603 thread_can_start_(thread_can_start), 1604 finished_(false) { 1605 ThreadWithParamBase* const base = this; 1606 // The thread can be created only after all fields except thread_ 1607 // have been initialized. 1608 GTEST_CHECK_POSIX_SUCCESS_( 1609 pthread_create(&thread_, 0, &ThreadFuncWithCLinkage, base)); 1610 } 1611 ~ThreadWithParam() { Join(); } 1612 1613 void Join() { 1614 if (!finished_) { 1615 GTEST_CHECK_POSIX_SUCCESS_(pthread_join(thread_, 0)); 1616 finished_ = true; 1617 } 1618 } 1619 1620 virtual void Run() { 1621 if (thread_can_start_ != NULL) 1622 thread_can_start_->WaitForNotification(); 1623 func_(param_); 1624 } 1625 1626 private: 1627 UserThreadFunc* const func_; // User-supplied thread function. 1628 const T param_; // User-supplied parameter to the thread function. 1629 // When non-NULL, used to block execution until the controller thread 1630 // notifies. 1631 Notification* const thread_can_start_; 1632 bool finished_; // true iff we know that the thread function has finished. 1633 pthread_t thread_; // The native thread object. 1634 1635 GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadWithParam); 1636}; 1637# endif // !GTEST_OS_WINDOWS && GTEST_HAS_PTHREAD || 1638 // GTEST_HAS_MUTEX_AND_THREAD_LOCAL_ 1639 1640# if GTEST_HAS_MUTEX_AND_THREAD_LOCAL_ 1641// Mutex and ThreadLocal have already been imported into the namespace. 1642// Nothing to do here. 1643 1644# elif GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT 1645 1646// Mutex implements mutex on Windows platforms. It is used in conjunction 1647// with class MutexLock: 1648// 1649// Mutex mutex; 1650// ... 1651// MutexLock lock(&mutex); // Acquires the mutex and releases it at the 1652// // end of the current scope. 1653// 1654// A static Mutex *must* be defined or declared using one of the following 1655// macros: 1656// GTEST_DEFINE_STATIC_MUTEX_(g_some_mutex); 1657// GTEST_DECLARE_STATIC_MUTEX_(g_some_mutex); 1658// 1659// (A non-static Mutex is defined/declared in the usual way). 1660class GTEST_API_ Mutex { 1661 public: 1662 enum MutexType { kStatic = 0, kDynamic = 1 }; 1663 // We rely on kStaticMutex being 0 as it is to what the linker initializes 1664 // type_ in static mutexes. critical_section_ will be initialized lazily 1665 // in ThreadSafeLazyInit(). 1666 enum StaticConstructorSelector { kStaticMutex = 0 }; 1667 1668 // This constructor intentionally does nothing. It relies on type_ being 1669 // statically initialized to 0 (effectively setting it to kStatic) and on 1670 // ThreadSafeLazyInit() to lazily initialize the rest of the members. 1671 explicit Mutex(StaticConstructorSelector /*dummy*/) {} 1672 1673 Mutex(); 1674 ~Mutex(); 1675 1676 void Lock(); 1677 1678 void Unlock(); 1679 1680 // Does nothing if the current thread holds the mutex. Otherwise, crashes 1681 // with high probability. 1682 void AssertHeld(); 1683 1684 private: 1685 // Initializes owner_thread_id_ and critical_section_ in static mutexes. 1686 void ThreadSafeLazyInit(); 1687 1688 // Per http://blogs.msdn.com/b/oldnewthing/archive/2004/02/23/78395.aspx, 1689 // we assume that 0 is an invalid value for thread IDs. 1690 unsigned int owner_thread_id_; 1691 1692 // For static mutexes, we rely on these members being initialized to zeros 1693 // by the linker. 1694 MutexType type_; 1695 long critical_section_init_phase_; // NOLINT 1696 _RTL_CRITICAL_SECTION* critical_section_; 1697 1698 GTEST_DISALLOW_COPY_AND_ASSIGN_(Mutex); 1699}; 1700 1701# define GTEST_DECLARE_STATIC_MUTEX_(mutex) \ 1702 extern ::testing::internal::Mutex mutex 1703 1704# define GTEST_DEFINE_STATIC_MUTEX_(mutex) \ 1705 ::testing::internal::Mutex mutex(::testing::internal::Mutex::kStaticMutex) 1706 1707// We cannot name this class MutexLock because the ctor declaration would 1708// conflict with a macro named MutexLock, which is defined on some 1709// platforms. That macro is used as a defensive measure to prevent against 1710// inadvertent misuses of MutexLock like "MutexLock(&mu)" rather than 1711// "MutexLock l(&mu)". Hence the typedef trick below. 1712class GTestMutexLock { 1713 public: 1714 explicit GTestMutexLock(Mutex* mutex) 1715 : mutex_(mutex) { mutex_->Lock(); } 1716 1717 ~GTestMutexLock() { mutex_->Unlock(); } 1718 1719 private: 1720 Mutex* const mutex_; 1721 1722 GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestMutexLock); 1723}; 1724 1725typedef GTestMutexLock MutexLock; 1726 1727// Base class for ValueHolder<T>. Allows a caller to hold and delete a value 1728// without knowing its type. 1729class ThreadLocalValueHolderBase { 1730 public: 1731 virtual ~ThreadLocalValueHolderBase() {} 1732}; 1733 1734// Provides a way for a thread to send notifications to a ThreadLocal 1735// regardless of its parameter type. 1736class ThreadLocalBase { 1737 public: 1738 // Creates a new ValueHolder<T> object holding a default value passed to 1739 // this ThreadLocal<T>'s constructor and returns it. It is the caller's 1740 // responsibility not to call this when the ThreadLocal<T> instance already 1741 // has a value on the current thread. 1742 virtual ThreadLocalValueHolderBase* NewValueForCurrentThread() const = 0; 1743 1744 protected: 1745 ThreadLocalBase() {} 1746 virtual ~ThreadLocalBase() {} 1747 1748 private: 1749 GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocalBase); 1750}; 1751 1752// Maps a thread to a set of ThreadLocals that have values instantiated on that 1753// thread and notifies them when the thread exits. A ThreadLocal instance is 1754// expected to persist until all threads it has values on have terminated. 1755class GTEST_API_ ThreadLocalRegistry { 1756 public: 1757 // Registers thread_local_instance as having value on the current thread. 1758 // Returns a value that can be used to identify the thread from other threads. 1759 static ThreadLocalValueHolderBase* GetValueOnCurrentThread( 1760 const ThreadLocalBase* thread_local_instance); 1761 1762 // Invoked when a ThreadLocal instance is destroyed. 1763 static void OnThreadLocalDestroyed( 1764 const ThreadLocalBase* thread_local_instance); 1765}; 1766 1767class GTEST_API_ ThreadWithParamBase { 1768 public: 1769 void Join(); 1770 1771 protected: 1772 class Runnable { 1773 public: 1774 virtual ~Runnable() {} 1775 virtual void Run() = 0; 1776 }; 1777 1778 ThreadWithParamBase(Runnable *runnable, Notification* thread_can_start); 1779 virtual ~ThreadWithParamBase(); 1780 1781 private: 1782 AutoHandle thread_; 1783}; 1784 1785// Helper class for testing Google Test's multi-threading constructs. 1786template <typename T> 1787class ThreadWithParam : public ThreadWithParamBase { 1788 public: 1789 typedef void UserThreadFunc(T); 1790 1791 ThreadWithParam(UserThreadFunc* func, T param, Notification* thread_can_start) 1792 : ThreadWithParamBase(new RunnableImpl(func, param), thread_can_start) { 1793 } 1794 virtual ~ThreadWithParam() {} 1795 1796 private: 1797 class RunnableImpl : public Runnable { 1798 public: 1799 RunnableImpl(UserThreadFunc* func, T param) 1800 : func_(func), 1801 param_(param) { 1802 } 1803 virtual ~RunnableImpl() {} 1804 virtual void Run() { 1805 func_(param_); 1806 } 1807 1808 private: 1809 UserThreadFunc* const func_; 1810 const T param_; 1811 1812 GTEST_DISALLOW_COPY_AND_ASSIGN_(RunnableImpl); 1813 }; 1814 1815 GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadWithParam); 1816}; 1817 1818// Implements thread-local storage on Windows systems. 1819// 1820// // Thread 1 1821// ThreadLocal<int> tl(100); // 100 is the default value for each thread. 1822// 1823// // Thread 2 1824// tl.set(150); // Changes the value for thread 2 only. 1825// EXPECT_EQ(150, tl.get()); 1826// 1827// // Thread 1 1828// EXPECT_EQ(100, tl.get()); // In thread 1, tl has the original value. 1829// tl.set(200); 1830// EXPECT_EQ(200, tl.get()); 1831// 1832// The template type argument T must have a public copy constructor. 1833// In addition, the default ThreadLocal constructor requires T to have 1834// a public default constructor. 1835// 1836// The users of a TheadLocal instance have to make sure that all but one 1837// threads (including the main one) using that instance have exited before 1838// destroying it. Otherwise, the per-thread objects managed for them by the 1839// ThreadLocal instance are not guaranteed to be destroyed on all platforms. 1840// 1841// Google Test only uses global ThreadLocal objects. That means they 1842// will die after main() has returned. Therefore, no per-thread 1843// object managed by Google Test will be leaked as long as all threads 1844// using Google Test have exited when main() returns. 1845template <typename T> 1846class ThreadLocal : public ThreadLocalBase { 1847 public: 1848 ThreadLocal() : default_factory_(new DefaultValueHolderFactory()) {} 1849 explicit ThreadLocal(const T& value) 1850 : default_factory_(new InstanceValueHolderFactory(value)) {} 1851 1852 ~ThreadLocal() { ThreadLocalRegistry::OnThreadLocalDestroyed(this); } 1853 1854 T* pointer() { return GetOrCreateValue(); } 1855 const T* pointer() const { return GetOrCreateValue(); } 1856 const T& get() const { return *pointer(); } 1857 void set(const T& value) { *pointer() = value; } 1858 1859 private: 1860 // Holds a value of T. Can be deleted via its base class without the caller 1861 // knowing the type of T. 1862 class ValueHolder : public ThreadLocalValueHolderBase { 1863 public: 1864 ValueHolder() : value_() {} 1865 explicit ValueHolder(const T& value) : value_(value) {} 1866 1867 T* pointer() { return &value_; } 1868 1869 private: 1870 T value_; 1871 GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolder); 1872 }; 1873 1874 1875 T* GetOrCreateValue() const { 1876 return static_cast<ValueHolder*>( 1877 ThreadLocalRegistry::GetValueOnCurrentThread(this))->pointer(); 1878 } 1879 1880 virtual ThreadLocalValueHolderBase* NewValueForCurrentThread() const { 1881 return default_factory_->MakeNewHolder(); 1882 } 1883 1884 class ValueHolderFactory { 1885 public: 1886 ValueHolderFactory() {} 1887 virtual ~ValueHolderFactory() {} 1888 virtual ValueHolder* MakeNewHolder() const = 0; 1889 1890 private: 1891 GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolderFactory); 1892 }; 1893 1894 class DefaultValueHolderFactory : public ValueHolderFactory { 1895 public: 1896 DefaultValueHolderFactory() {} 1897 virtual ValueHolder* MakeNewHolder() const { return new ValueHolder(); } 1898 1899 private: 1900 GTEST_DISALLOW_COPY_AND_ASSIGN_(DefaultValueHolderFactory); 1901 }; 1902 1903 class InstanceValueHolderFactory : public ValueHolderFactory { 1904 public: 1905 explicit InstanceValueHolderFactory(const T& value) : value_(value) {} 1906 virtual ValueHolder* MakeNewHolder() const { 1907 return new ValueHolder(value_); 1908 } 1909 1910 private: 1911 const T value_; // The value for each thread. 1912 1913 GTEST_DISALLOW_COPY_AND_ASSIGN_(InstanceValueHolderFactory); 1914 }; 1915 1916 scoped_ptr<ValueHolderFactory> default_factory_; 1917 1918 GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocal); 1919}; 1920 1921# elif GTEST_HAS_PTHREAD 1922 1923// MutexBase and Mutex implement mutex on pthreads-based platforms. 1924class MutexBase { 1925 public: 1926 // Acquires this mutex. 1927 void Lock() { 1928 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_lock(&mutex_)); 1929 owner_ = pthread_self(); 1930 has_owner_ = true; 1931 } 1932 1933 // Releases this mutex. 1934 void Unlock() { 1935 // Since the lock is being released the owner_ field should no longer be 1936 // considered valid. We don't protect writing to has_owner_ here, as it's 1937 // the caller's responsibility to ensure that the current thread holds the 1938 // mutex when this is called. 1939 has_owner_ = false; 1940 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_unlock(&mutex_)); 1941 } 1942 1943 // Does nothing if the current thread holds the mutex. Otherwise, crashes 1944 // with high probability. 1945 void AssertHeld() const { 1946 GTEST_CHECK_(has_owner_ && pthread_equal(owner_, pthread_self())) 1947 << "The current thread is not holding the mutex @" << this; 1948 } 1949 1950 // A static mutex may be used before main() is entered. It may even 1951 // be used before the dynamic initialization stage. Therefore we 1952 // must be able to initialize a static mutex object at link time. 1953 // This means MutexBase has to be a POD and its member variables 1954 // have to be public. 1955 public: 1956 pthread_mutex_t mutex_; // The underlying pthread mutex. 1957 // has_owner_ indicates whether the owner_ field below contains a valid thread 1958 // ID and is therefore safe to inspect (e.g., to use in pthread_equal()). All 1959 // accesses to the owner_ field should be protected by a check of this field. 1960 // An alternative might be to memset() owner_ to all zeros, but there's no 1961 // guarantee that a zero'd pthread_t is necessarily invalid or even different 1962 // from pthread_self(). 1963 bool has_owner_; 1964 pthread_t owner_; // The thread holding the mutex. 1965}; 1966 1967// Forward-declares a static mutex. 1968# define GTEST_DECLARE_STATIC_MUTEX_(mutex) \ 1969 extern ::testing::internal::MutexBase mutex 1970 1971// Defines and statically (i.e. at link time) initializes a static mutex. 1972# define GTEST_DEFINE_STATIC_MUTEX_(mutex) \ 1973 ::testing::internal::MutexBase mutex = { PTHREAD_MUTEX_INITIALIZER, false, pthread_t() } 1974 1975// The Mutex class can only be used for mutexes created at runtime. It 1976// shares its API with MutexBase otherwise. 1977class Mutex : public MutexBase { 1978 public: 1979 Mutex() { 1980 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_init(&mutex_, NULL)); 1981 has_owner_ = false; 1982 } 1983 ~Mutex() { 1984 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_destroy(&mutex_)); 1985 } 1986 1987 private: 1988 GTEST_DISALLOW_COPY_AND_ASSIGN_(Mutex); 1989}; 1990 1991// We cannot name this class MutexLock because the ctor declaration would 1992// conflict with a macro named MutexLock, which is defined on some 1993// platforms. That macro is used as a defensive measure to prevent against 1994// inadvertent misuses of MutexLock like "MutexLock(&mu)" rather than 1995// "MutexLock l(&mu)". Hence the typedef trick below. 1996class GTestMutexLock { 1997 public: 1998 explicit GTestMutexLock(MutexBase* mutex) 1999 : mutex_(mutex) { mutex_->Lock(); } 2000 2001 ~GTestMutexLock() { mutex_->Unlock(); } 2002 2003 private: 2004 MutexBase* const mutex_; 2005 2006 GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestMutexLock); 2007}; 2008 2009typedef GTestMutexLock MutexLock; 2010 2011// Helpers for ThreadLocal. 2012 2013// pthread_key_create() requires DeleteThreadLocalValue() to have 2014// C-linkage. Therefore it cannot be templatized to access 2015// ThreadLocal<T>. Hence the need for class 2016// ThreadLocalValueHolderBase. 2017class ThreadLocalValueHolderBase { 2018 public: 2019 virtual ~ThreadLocalValueHolderBase() {} 2020}; 2021 2022// Called by pthread to delete thread-local data stored by 2023// pthread_setspecific(). 2024extern "C" inline void DeleteThreadLocalValue(void* value_holder) { 2025 delete static_cast<ThreadLocalValueHolderBase*>(value_holder); 2026} 2027 2028// Implements thread-local storage on pthreads-based systems. 2029template <typename T> 2030class ThreadLocal { 2031 public: 2032 ThreadLocal() 2033 : key_(CreateKey()), default_factory_(new DefaultValueHolderFactory()) {} 2034 explicit ThreadLocal(const T& value) 2035 : key_(CreateKey()), 2036 default_factory_(new InstanceValueHolderFactory(value)) {} 2037 2038 ~ThreadLocal() { 2039 // Destroys the managed object for the current thread, if any. 2040 DeleteThreadLocalValue(pthread_getspecific(key_)); 2041 2042 // Releases resources associated with the key. This will *not* 2043 // delete managed objects for other threads. 2044 GTEST_CHECK_POSIX_SUCCESS_(pthread_key_delete(key_)); 2045 } 2046 2047 T* pointer() { return GetOrCreateValue(); } 2048 const T* pointer() const { return GetOrCreateValue(); } 2049 const T& get() const { return *pointer(); } 2050 void set(const T& value) { *pointer() = value; } 2051 2052 private: 2053 // Holds a value of type T. 2054 class ValueHolder : public ThreadLocalValueHolderBase { 2055 public: 2056 ValueHolder() : value_() {} 2057 explicit ValueHolder(const T& value) : value_(value) {} 2058 2059 T* pointer() { return &value_; } 2060 2061 private: 2062 T value_; 2063 GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolder); 2064 }; 2065 2066 static pthread_key_t CreateKey() { 2067 pthread_key_t key; 2068 // When a thread exits, DeleteThreadLocalValue() will be called on 2069 // the object managed for that thread. 2070 GTEST_CHECK_POSIX_SUCCESS_( 2071 pthread_key_create(&key, &DeleteThreadLocalValue)); 2072 return key; 2073 } 2074 2075 T* GetOrCreateValue() const { 2076 ThreadLocalValueHolderBase* const holder = 2077 static_cast<ThreadLocalValueHolderBase*>(pthread_getspecific(key_)); 2078 if (holder != NULL) { 2079 return CheckedDowncastToActualType<ValueHolder>(holder)->pointer(); 2080 } 2081 2082 ValueHolder* const new_holder = default_factory_->MakeNewHolder(); 2083 ThreadLocalValueHolderBase* const holder_base = new_holder; 2084 GTEST_CHECK_POSIX_SUCCESS_(pthread_setspecific(key_, holder_base)); 2085 return new_holder->pointer(); 2086 } 2087 2088 class ValueHolderFactory { 2089 public: 2090 ValueHolderFactory() {} 2091 virtual ~ValueHolderFactory() {} 2092 virtual ValueHolder* MakeNewHolder() const = 0; 2093 2094 private: 2095 GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolderFactory); 2096 }; 2097 2098 class DefaultValueHolderFactory : public ValueHolderFactory { 2099 public: 2100 DefaultValueHolderFactory() {} 2101 virtual ValueHolder* MakeNewHolder() const { return new ValueHolder(); } 2102 2103 private: 2104 GTEST_DISALLOW_COPY_AND_ASSIGN_(DefaultValueHolderFactory); 2105 }; 2106 2107 class InstanceValueHolderFactory : public ValueHolderFactory { 2108 public: 2109 explicit InstanceValueHolderFactory(const T& value) : value_(value) {} 2110 virtual ValueHolder* MakeNewHolder() const { 2111 return new ValueHolder(value_); 2112 } 2113 2114 private: 2115 const T value_; // The value for each thread. 2116 2117 GTEST_DISALLOW_COPY_AND_ASSIGN_(InstanceValueHolderFactory); 2118 }; 2119 2120 // A key pthreads uses for looking up per-thread values. 2121 const pthread_key_t key_; 2122 scoped_ptr<ValueHolderFactory> default_factory_; 2123 2124 GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocal); 2125}; 2126 2127# endif // GTEST_HAS_MUTEX_AND_THREAD_LOCAL_ 2128 2129#else // GTEST_IS_THREADSAFE 2130 2131// A dummy implementation of synchronization primitives (mutex, lock, 2132// and thread-local variable). Necessary for compiling Google Test where 2133// mutex is not supported - using Google Test in multiple threads is not 2134// supported on such platforms. 2135 2136class Mutex { 2137 public: 2138 Mutex() {} 2139 void Lock() {} 2140 void Unlock() {} 2141 void AssertHeld() const {} 2142}; 2143 2144# define GTEST_DECLARE_STATIC_MUTEX_(mutex) \ 2145 extern ::testing::internal::Mutex mutex 2146 2147# define GTEST_DEFINE_STATIC_MUTEX_(mutex) ::testing::internal::Mutex mutex 2148 2149// We cannot name this class MutexLock because the ctor declaration would 2150// conflict with a macro named MutexLock, which is defined on some 2151// platforms. That macro is used as a defensive measure to prevent against 2152// inadvertent misuses of MutexLock like "MutexLock(&mu)" rather than 2153// "MutexLock l(&mu)". Hence the typedef trick below. 2154class GTestMutexLock { 2155 public: 2156 explicit GTestMutexLock(Mutex*) {} // NOLINT 2157}; 2158 2159typedef GTestMutexLock MutexLock; 2160 2161template <typename T> 2162class ThreadLocal { 2163 public: 2164 ThreadLocal() : value_() {} 2165 explicit ThreadLocal(const T& value) : value_(value) {} 2166 T* pointer() { return &value_; } 2167 const T* pointer() const { return &value_; } 2168 const T& get() const { return value_; } 2169 void set(const T& value) { value_ = value; } 2170 private: 2171 T value_; 2172}; 2173 2174#endif // GTEST_IS_THREADSAFE 2175 2176// Returns the number of threads running in the process, or 0 to indicate that 2177// we cannot detect it. 2178GTEST_API_ size_t GetThreadCount(); 2179 2180// Passing non-POD classes through ellipsis (...) crashes the ARM 2181// compiler and generates a warning in Sun Studio. The Nokia Symbian 2182// and the IBM XL C/C++ compiler try to instantiate a copy constructor 2183// for objects passed through ellipsis (...), failing for uncopyable 2184// objects. We define this to ensure that only POD is passed through 2185// ellipsis on these systems. 2186#if defined(__SYMBIAN32__) || defined(__IBMCPP__) || defined(__SUNPRO_CC) 2187// We lose support for NULL detection where the compiler doesn't like 2188// passing non-POD classes through ellipsis (...). 2189# define GTEST_ELLIPSIS_NEEDS_POD_ 1 2190#else 2191# define GTEST_CAN_COMPARE_NULL 1 2192#endif 2193 2194// The Nokia Symbian and IBM XL C/C++ compilers cannot decide between 2195// const T& and const T* in a function template. These compilers 2196// _can_ decide between class template specializations for T and T*, 2197// so a tr1::type_traits-like is_pointer works. 2198#if defined(__SYMBIAN32__) || defined(__IBMCPP__) 2199# define GTEST_NEEDS_IS_POINTER_ 1 2200#endif 2201 2202template <bool bool_value> 2203struct bool_constant { 2204 typedef bool_constant<bool_value> type; 2205 static const bool value = bool_value; 2206}; 2207template <bool bool_value> const bool bool_constant<bool_value>::value; 2208 2209typedef bool_constant<false> false_type; 2210typedef bool_constant<true> true_type; 2211 2212template <typename T> 2213struct is_pointer : public false_type {}; 2214 2215template <typename T> 2216struct is_pointer<T*> : public true_type {}; 2217 2218template <typename Iterator> 2219struct IteratorTraits { 2220 typedef typename Iterator::value_type value_type; 2221}; 2222 2223template <typename T> 2224struct IteratorTraits<T*> { 2225 typedef T value_type; 2226}; 2227 2228template <typename T> 2229struct IteratorTraits<const T*> { 2230 typedef T value_type; 2231}; 2232 2233#if GTEST_OS_WINDOWS 2234# define GTEST_PATH_SEP_ "\\" 2235# define GTEST_HAS_ALT_PATH_SEP_ 1 2236// The biggest signed integer type the compiler supports. 2237typedef __int64 BiggestInt; 2238#else 2239# define GTEST_PATH_SEP_ "/" 2240# define GTEST_HAS_ALT_PATH_SEP_ 0 2241typedef long long BiggestInt; // NOLINT 2242#endif // GTEST_OS_WINDOWS 2243 2244// Utilities for char. 2245 2246// isspace(int ch) and friends accept an unsigned char or EOF. char 2247// may be signed, depending on the compiler (or compiler flags). 2248// Therefore we need to cast a char to unsigned char before calling 2249// isspace(), etc. 2250 2251inline bool IsAlpha(char ch) { 2252 return isalpha(static_cast<unsigned char>(ch)) != 0; 2253} 2254inline bool IsAlNum(char ch) { 2255 return isalnum(static_cast<unsigned char>(ch)) != 0; 2256} 2257inline bool IsDigit(char ch) { 2258 return isdigit(static_cast<unsigned char>(ch)) != 0; 2259} 2260inline bool IsLower(char ch) { 2261 return islower(static_cast<unsigned char>(ch)) != 0; 2262} 2263inline bool IsSpace(char ch) { 2264 return isspace(static_cast<unsigned char>(ch)) != 0; 2265} 2266inline bool IsUpper(char ch) { 2267 return isupper(static_cast<unsigned char>(ch)) != 0; 2268} 2269inline bool IsXDigit(char ch) { 2270 return isxdigit(static_cast<unsigned char>(ch)) != 0; 2271} 2272inline bool IsXDigit(wchar_t ch) { 2273 const unsigned char low_byte = static_cast<unsigned char>(ch); 2274 return ch == low_byte && isxdigit(low_byte) != 0; 2275} 2276 2277inline char ToLower(char ch) { 2278 return static_cast<char>(tolower(static_cast<unsigned char>(ch))); 2279} 2280inline char ToUpper(char ch) { 2281 return static_cast<char>(toupper(static_cast<unsigned char>(ch))); 2282} 2283 2284inline std::string StripTrailingSpaces(std::string str) { 2285 std::string::iterator it = str.end(); 2286 while (it != str.begin() && IsSpace(*--it)) 2287 it = str.erase(it); 2288 return str; 2289} 2290 2291// The testing::internal::posix namespace holds wrappers for common 2292// POSIX functions. These wrappers hide the differences between 2293// Windows/MSVC and POSIX systems. Since some compilers define these 2294// standard functions as macros, the wrapper cannot have the same name 2295// as the wrapped function. 2296 2297namespace posix { 2298 2299// Functions with a different name on Windows. 2300 2301#if GTEST_OS_WINDOWS 2302 2303typedef struct _stat StatStruct; 2304 2305# ifdef __BORLANDC__ 2306inline int IsATTY(int fd) { return isatty(fd); } 2307inline int StrCaseCmp(const char* s1, const char* s2) { 2308 return stricmp(s1, s2); 2309} 2310inline char* StrDup(const char* src) { return strdup(src); } 2311# else // !__BORLANDC__ 2312# if GTEST_OS_WINDOWS_MOBILE 2313inline int IsATTY(int /* fd */) { return 0; } 2314# else 2315inline int IsATTY(int fd) { return _isatty(fd); } 2316# endif // GTEST_OS_WINDOWS_MOBILE 2317inline int StrCaseCmp(const char* s1, const char* s2) { 2318 return _stricmp(s1, s2); 2319} 2320inline char* StrDup(const char* src) { return _strdup(src); } 2321# endif // __BORLANDC__ 2322 2323# if GTEST_OS_WINDOWS_MOBILE 2324inline int FileNo(FILE* file) { return reinterpret_cast<int>(_fileno(file)); } 2325// Stat(), RmDir(), and IsDir() are not needed on Windows CE at this 2326// time and thus not defined there. 2327# else 2328inline int FileNo(FILE* file) { return _fileno(file); } 2329inline int Stat(const char* path, StatStruct* buf) { return _stat(path, buf); } 2330inline int RmDir(const char* dir) { return _rmdir(dir); } 2331inline bool IsDir(const StatStruct& st) { 2332 return (_S_IFDIR & st.st_mode) != 0; 2333} 2334# endif // GTEST_OS_WINDOWS_MOBILE 2335 2336#else 2337 2338typedef struct stat StatStruct; 2339 2340inline int FileNo(FILE* file) { return fileno(file); } 2341inline int IsATTY(int fd) { return isatty(fd); } 2342inline int Stat(const char* path, StatStruct* buf) { return stat(path, buf); } 2343inline int StrCaseCmp(const char* s1, const char* s2) { 2344 return strcasecmp(s1, s2); 2345} 2346inline char* StrDup(const char* src) { return strdup(src); } 2347inline int RmDir(const char* dir) { return rmdir(dir); } 2348inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); } 2349 2350#endif // GTEST_OS_WINDOWS 2351 2352// Functions deprecated by MSVC 8.0. 2353 2354GTEST_DISABLE_MSC_WARNINGS_PUSH_(4996 /* deprecated function */) 2355 2356inline const char* StrNCpy(char* dest, const char* src, size_t n) { 2357 return strncpy(dest, src, n); 2358} 2359 2360// ChDir(), FReopen(), FDOpen(), Read(), Write(), Close(), and 2361// StrError() aren't needed on Windows CE at this time and thus not 2362// defined there. 2363 2364#if !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT 2365inline int ChDir(const char* dir) { return chdir(dir); } 2366#endif 2367inline FILE* FOpen(const char* path, const char* mode) { 2368 return fopen(path, mode); 2369} 2370#if !GTEST_OS_WINDOWS_MOBILE 2371inline FILE *FReopen(const char* path, const char* mode, FILE* stream) { 2372 return freopen(path, mode, stream); 2373} 2374inline FILE* FDOpen(int fd, const char* mode) { return fdopen(fd, mode); } 2375#endif 2376inline int FClose(FILE* fp) { return fclose(fp); } 2377#if !GTEST_OS_WINDOWS_MOBILE 2378inline int Read(int fd, void* buf, unsigned int count) { 2379 return static_cast<int>(read(fd, buf, count)); 2380} 2381inline int Write(int fd, const void* buf, unsigned int count) { 2382 return static_cast<int>(write(fd, buf, count)); 2383} 2384inline int Close(int fd) { return close(fd); } 2385inline const char* StrError(int errnum) { return strerror(errnum); } 2386#endif 2387inline const char* GetEnv(const char* name) { 2388#if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE | GTEST_OS_WINDOWS_RT 2389 // We are on Windows CE, which has no environment variables. 2390 static_cast<void>(name); // To prevent 'unused argument' warning. 2391 return NULL; 2392#elif defined(__BORLANDC__) || defined(__SunOS_5_8) || defined(__SunOS_5_9) 2393 // Environment variables which we programmatically clear will be set to the 2394 // empty string rather than unset (NULL). Handle that case. 2395 const char* const env = getenv(name); 2396 return (env != NULL && env[0] != '\0') ? env : NULL; 2397#else 2398 return getenv(name); 2399#endif 2400} 2401 2402GTEST_DISABLE_MSC_WARNINGS_POP_() 2403 2404#if GTEST_OS_WINDOWS_MOBILE 2405// Windows CE has no C library. The abort() function is used in 2406// several places in Google Test. This implementation provides a reasonable 2407// imitation of standard behaviour. 2408void Abort(); 2409#else 2410inline void Abort() { abort(); } 2411#endif // GTEST_OS_WINDOWS_MOBILE 2412 2413} // namespace posix 2414 2415// MSVC "deprecates" snprintf and issues warnings wherever it is used. In 2416// order to avoid these warnings, we need to use _snprintf or _snprintf_s on 2417// MSVC-based platforms. We map the GTEST_SNPRINTF_ macro to the appropriate 2418// function in order to achieve that. We use macro definition here because 2419// snprintf is a variadic function. 2420#if _MSC_VER >= 1400 && !GTEST_OS_WINDOWS_MOBILE 2421// MSVC 2005 and above support variadic macros. 2422# define GTEST_SNPRINTF_(buffer, size, format, ...) \ 2423 _snprintf_s(buffer, size, size, format, __VA_ARGS__) 2424#elif defined(_MSC_VER) 2425// Windows CE does not define _snprintf_s and MSVC prior to 2005 doesn't 2426// complain about _snprintf. 2427# define GTEST_SNPRINTF_ _snprintf 2428#else 2429# define GTEST_SNPRINTF_ snprintf 2430#endif 2431 2432// The maximum number a BiggestInt can represent. This definition 2433// works no matter BiggestInt is represented in one's complement or 2434// two's complement. 2435// 2436// We cannot rely on numeric_limits in STL, as __int64 and long long 2437// are not part of standard C++ and numeric_limits doesn't need to be 2438// defined for them. 2439const BiggestInt kMaxBiggestInt = 2440 ~(static_cast<BiggestInt>(1) << (8*sizeof(BiggestInt) - 1)); 2441 2442// This template class serves as a compile-time function from size to 2443// type. It maps a size in bytes to a primitive type with that 2444// size. e.g. 2445// 2446// TypeWithSize<4>::UInt 2447// 2448// is typedef-ed to be unsigned int (unsigned integer made up of 4 2449// bytes). 2450// 2451// Such functionality should belong to STL, but I cannot find it 2452// there. 2453// 2454// Google Test uses this class in the implementation of floating-point 2455// comparison. 2456// 2457// For now it only handles UInt (unsigned int) as that's all Google Test 2458// needs. Other types can be easily added in the future if need 2459// arises. 2460template <size_t size> 2461class TypeWithSize { 2462 public: 2463 // This prevents the user from using TypeWithSize<N> with incorrect 2464 // values of N. 2465 typedef void UInt; 2466}; 2467 2468// The specialization for size 4. 2469template <> 2470class TypeWithSize<4> { 2471 public: 2472 // unsigned int has size 4 in both gcc and MSVC. 2473 // 2474 // As base/basictypes.h doesn't compile on Windows, we cannot use 2475 // uint32, uint64, and etc here. 2476 typedef int Int; 2477 typedef unsigned int UInt; 2478}; 2479 2480// The specialization for size 8. 2481template <> 2482class TypeWithSize<8> { 2483 public: 2484#if GTEST_OS_WINDOWS 2485 typedef __int64 Int; 2486 typedef unsigned __int64 UInt; 2487#else 2488 typedef long long Int; // NOLINT 2489 typedef unsigned long long UInt; // NOLINT 2490#endif // GTEST_OS_WINDOWS 2491}; 2492 2493// Integer types of known sizes. 2494typedef TypeWithSize<4>::Int Int32; 2495typedef TypeWithSize<4>::UInt UInt32; 2496typedef TypeWithSize<8>::Int Int64; 2497typedef TypeWithSize<8>::UInt UInt64; 2498typedef TypeWithSize<8>::Int TimeInMillis; // Represents time in milliseconds. 2499 2500// Utilities for command line flags and environment variables. 2501 2502// Macro for referencing flags. 2503#if !defined(GTEST_FLAG) 2504# define GTEST_FLAG(name) FLAGS_gtest_##name 2505#endif // !defined(GTEST_FLAG) 2506 2507#if !defined(GTEST_USE_OWN_FLAGFILE_FLAG_) 2508# define GTEST_USE_OWN_FLAGFILE_FLAG_ 1 2509#endif // !defined(GTEST_USE_OWN_FLAGFILE_FLAG_) 2510 2511#if !defined(GTEST_DECLARE_bool_) 2512# define GTEST_FLAG_SAVER_ ::testing::internal::GTestFlagSaver 2513 2514// Macros for declaring flags. 2515# define GTEST_DECLARE_bool_(name) GTEST_API_ extern bool GTEST_FLAG(name) 2516# define GTEST_DECLARE_int32_(name) \ 2517 GTEST_API_ extern ::testing::internal::Int32 GTEST_FLAG(name) 2518#define GTEST_DECLARE_string_(name) \ 2519 GTEST_API_ extern ::std::string GTEST_FLAG(name) 2520 2521// Macros for defining flags. 2522#define GTEST_DEFINE_bool_(name, default_val, doc) \ 2523 GTEST_API_ bool GTEST_FLAG(name) = (default_val) 2524#define GTEST_DEFINE_int32_(name, default_val, doc) \ 2525 GTEST_API_ ::testing::internal::Int32 GTEST_FLAG(name) = (default_val) 2526#define GTEST_DEFINE_string_(name, default_val, doc) \ 2527 GTEST_API_ ::std::string GTEST_FLAG(name) = (default_val) 2528 2529#endif // !defined(GTEST_DECLARE_bool_) 2530 2531// Thread annotations 2532#if !defined(GTEST_EXCLUSIVE_LOCK_REQUIRED_) 2533# define GTEST_EXCLUSIVE_LOCK_REQUIRED_(locks) 2534# define GTEST_LOCK_EXCLUDED_(locks) 2535#endif // !defined(GTEST_EXCLUSIVE_LOCK_REQUIRED_) 2536 2537// Parses 'str' for a 32-bit signed integer. If successful, writes the result 2538// to *value and returns true; otherwise leaves *value unchanged and returns 2539// false. 2540// TODO(chandlerc): Find a better way to refactor flag and environment parsing 2541// out of both gtest-port.cc and gtest.cc to avoid exporting this utility 2542// function. 2543bool ParseInt32(const Message& src_text, const char* str, Int32* value); 2544 2545// Parses a bool/Int32/string from the environment variable 2546// corresponding to the given Google Test flag. 2547bool BoolFromGTestEnv(const char* flag, bool default_val); 2548GTEST_API_ Int32 Int32FromGTestEnv(const char* flag, Int32 default_val); 2549std::string StringFromGTestEnv(const char* flag, const char* default_val); 2550 2551} // namespace internal 2552} // namespace testing 2553 2554#endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ 2555