1// Copyright 2005, Google Inc. 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are 6// met: 7// 8// * Redistributions of source code must retain the above copyright 9// notice, this list of conditions and the following disclaimer. 10// * Redistributions in binary form must reproduce the above 11// copyright notice, this list of conditions and the following disclaimer 12// in the documentation and/or other materials provided with the 13// distribution. 14// * Neither the name of Google Inc. nor the names of its 15// contributors may be used to endorse or promote products derived from 16// this software without specific prior written permission. 17// 18// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29// 30// Authors: wan@google.com (Zhanyong Wan) 31// 32// Low-level types and utilities for porting Google Test to various 33// platforms. They are subject to change without notice. DO NOT USE 34// THEM IN USER CODE. 35 36#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ 37#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ 38 39// The user can define the following macros in the build script to 40// control Google Test's behavior. If the user doesn't define a macro 41// in this list, Google Test will define it. 42// 43// GTEST_HAS_CLONE - Define it to 1/0 to indicate that clone(2) 44// is/isn't available. 45// GTEST_HAS_EXCEPTIONS - Define it to 1/0 to indicate that exceptions 46// are enabled. 47// GTEST_HAS_GLOBAL_STRING - Define it to 1/0 to indicate that ::string 48// is/isn't available (some systems define 49// ::string, which is different to std::string). 50// GTEST_HAS_GLOBAL_WSTRING - Define it to 1/0 to indicate that ::string 51// is/isn't available (some systems define 52// ::wstring, which is different to std::wstring). 53// GTEST_HAS_PTHREAD - Define it to 1/0 to indicate that <pthread.h> 54// is/isn't available. 55// GTEST_HAS_RTTI - Define it to 1/0 to indicate that RTTI is/isn't 56// enabled. 57// GTEST_HAS_STD_WSTRING - Define it to 1/0 to indicate that 58// std::wstring does/doesn't work (Google Test can 59// be used where std::wstring is unavailable). 60// GTEST_HAS_TR1_TUPLE - Define it to 1/0 to indicate tr1::tuple 61// is/isn't available. 62// GTEST_HAS_SEH - Define it to 1/0 to indicate whether the 63// compiler supports Microsoft's "Structured 64// Exception Handling". 65// GTEST_USE_OWN_TR1_TUPLE - Define it to 1/0 to indicate whether Google 66// Test's own tr1 tuple implementation should be 67// used. Unused when the user sets 68// GTEST_HAS_TR1_TUPLE to 0. 69// GTEST_LINKED_AS_SHARED_LIBRARY 70// - Define to 1 when compiling tests that use 71// Google Test as a shared library (known as 72// DLL on Windows). 73// GTEST_CREATE_SHARED_LIBRARY 74// - Define to 1 when compiling Google Test itself 75// as a shared library. 76 77// This header defines the following utilities: 78// 79// Macros indicating the current platform (defined to 1 if compiled on 80// the given platform; otherwise undefined): 81// GTEST_OS_AIX - IBM AIX 82// GTEST_OS_CYGWIN - Cygwin 83// GTEST_OS_LINUX - Linux 84// GTEST_OS_MAC - Mac OS X 85// GTEST_OS_SOLARIS - Sun Solaris 86// GTEST_OS_SYMBIAN - Symbian 87// GTEST_OS_WINDOWS - Windows (Desktop, MinGW, or Mobile) 88// GTEST_OS_WINDOWS_DESKTOP - Windows Desktop 89// GTEST_OS_WINDOWS_MINGW - MinGW 90// GTEST_OS_WINDOWS_MOBILE - Windows Mobile 91// GTEST_OS_ZOS - z/OS 92// 93// Among the platforms, Cygwin, Linux, Max OS X, and Windows have the 94// most stable support. Since core members of the Google Test project 95// don't have access to other platforms, support for them may be less 96// stable. If you notice any problems on your platform, please notify 97// googletestframework@googlegroups.com (patches for fixing them are 98// even more welcome!). 99// 100// Note that it is possible that none of the GTEST_OS_* macros are defined. 101// 102// Macros indicating available Google Test features (defined to 1 if 103// the corresponding feature is supported; otherwise undefined): 104// GTEST_HAS_COMBINE - the Combine() function (for value-parameterized 105// tests) 106// GTEST_HAS_DEATH_TEST - death tests 107// GTEST_HAS_PARAM_TEST - value-parameterized tests 108// GTEST_HAS_TYPED_TEST - typed tests 109// GTEST_HAS_TYPED_TEST_P - type-parameterized tests 110// GTEST_USES_POSIX_RE - enhanced POSIX regex is used. 111// GTEST_USES_SIMPLE_RE - our own simple regex is used; 112// the above two are mutually exclusive. 113// GTEST_CAN_COMPARE_NULL - accepts untyped NULL in EXPECT_EQ(). 114// 115// Macros for basic C++ coding: 116// GTEST_AMBIGUOUS_ELSE_BLOCKER_ - for disabling a gcc warning. 117// GTEST_ATTRIBUTE_UNUSED_ - declares that a class' instances or a 118// variable don't have to be used. 119// GTEST_DISALLOW_ASSIGN_ - disables operator=. 120// GTEST_DISALLOW_COPY_AND_ASSIGN_ - disables copy ctor and operator=. 121// GTEST_MUST_USE_RESULT_ - declares that a function's result must be used. 122// 123// Synchronization: 124// Mutex, MutexLock, ThreadLocal, GetThreadCount() 125// - synchronization primitives. 126// GTEST_IS_THREADSAFE - defined to 1 to indicate that the above 127// synchronization primitives have real implementations 128// and Google Test is thread-safe; or 0 otherwise. 129// 130// Template meta programming: 131// is_pointer - as in TR1; needed on Symbian and IBM XL C/C++ only. 132// 133// Smart pointers: 134// scoped_ptr - as in TR2. 135// 136// Regular expressions: 137// RE - a simple regular expression class using the POSIX 138// Extended Regular Expression syntax. Not available on 139// Windows. 140// 141// Logging: 142// GTEST_LOG_() - logs messages at the specified severity level. 143// LogToStderr() - directs all log messages to stderr. 144// FlushInfoLog() - flushes informational log messages. 145// 146// Stdout and stderr capturing: 147// CaptureStdout() - starts capturing stdout. 148// GetCapturedStdout() - stops capturing stdout and returns the captured 149// string. 150// CaptureStderr() - starts capturing stderr. 151// GetCapturedStderr() - stops capturing stderr and returns the captured 152// string. 153// 154// Integer types: 155// TypeWithSize - maps an integer to a int type. 156// Int32, UInt32, Int64, UInt64, TimeInMillis 157// - integers of known sizes. 158// BiggestInt - the biggest signed integer type. 159// 160// Command-line utilities: 161// GTEST_FLAG() - references a flag. 162// GTEST_DECLARE_*() - declares a flag. 163// GTEST_DEFINE_*() - defines a flag. 164// GetArgvs() - returns the command line as a vector of strings. 165// 166// Environment variable utilities: 167// GetEnv() - gets the value of an environment variable. 168// BoolFromGTestEnv() - parses a bool environment variable. 169// Int32FromGTestEnv() - parses an Int32 environment variable. 170// StringFromGTestEnv() - parses a string environment variable. 171 172#include <stddef.h> // For ptrdiff_t 173#include <stdlib.h> 174#include <stdio.h> 175#include <string.h> 176#ifndef _WIN32_WCE 177#include <sys/stat.h> 178#endif // !_WIN32_WCE 179 180#include <iostream> // NOLINT 181#include <sstream> // NOLINT 182#include <string> // NOLINT 183 184#define GTEST_DEV_EMAIL_ "googletestframework@@googlegroups.com" 185#define GTEST_FLAG_PREFIX_ "gtest_" 186#define GTEST_FLAG_PREFIX_DASH_ "gtest-" 187#define GTEST_FLAG_PREFIX_UPPER_ "GTEST_" 188#define GTEST_NAME_ "Google Test" 189#define GTEST_PROJECT_URL_ "http://code.google.com/p/googletest/" 190 191// Determines the version of gcc that is used to compile this. 192#ifdef __GNUC__ 193// 40302 means version 4.3.2. 194#define GTEST_GCC_VER_ \ 195 (__GNUC__*10000 + __GNUC_MINOR__*100 + __GNUC_PATCHLEVEL__) 196#endif // __GNUC__ 197 198// Determines the platform on which Google Test is compiled. 199#ifdef __CYGWIN__ 200#define GTEST_OS_CYGWIN 1 201#elif defined __SYMBIAN32__ 202#define GTEST_OS_SYMBIAN 1 203#elif defined _WIN32 204#define GTEST_OS_WINDOWS 1 205#ifdef _WIN32_WCE 206#define GTEST_OS_WINDOWS_MOBILE 1 207#elif defined(__MINGW__) || defined(__MINGW32__) 208#define GTEST_OS_WINDOWS_MINGW 1 209#else 210#define GTEST_OS_WINDOWS_DESKTOP 1 211#endif // _WIN32_WCE 212#elif defined __APPLE__ 213#define GTEST_OS_MAC 1 214#elif defined __linux__ 215#define GTEST_OS_LINUX 1 216#elif defined __MVS__ 217#define GTEST_OS_ZOS 1 218#elif defined(__sun) && defined(__SVR4) 219#define GTEST_OS_SOLARIS 1 220#elif defined(_AIX) 221#define GTEST_OS_AIX 1 222#endif // __CYGWIN__ 223 224#if GTEST_OS_CYGWIN || GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_SYMBIAN || \ 225 GTEST_OS_SOLARIS || GTEST_OS_AIX 226 227// On some platforms, <regex.h> needs someone to define size_t, and 228// won't compile otherwise. We can #include it here as we already 229// included <stdlib.h>, which is guaranteed to define size_t through 230// <stddef.h>. 231#include <regex.h> // NOLINT 232#include <strings.h> // NOLINT 233#include <sys/types.h> // NOLINT 234#include <time.h> // NOLINT 235#include <unistd.h> // NOLINT 236 237#define GTEST_USES_POSIX_RE 1 238 239#elif GTEST_OS_WINDOWS 240 241#if !GTEST_OS_WINDOWS_MOBILE 242#include <direct.h> // NOLINT 243#include <io.h> // NOLINT 244#endif 245 246// <regex.h> is not available on Windows. Use our own simple regex 247// implementation instead. 248#define GTEST_USES_SIMPLE_RE 1 249 250#else 251 252// <regex.h> may not be available on this platform. Use our own 253// simple regex implementation instead. 254#define GTEST_USES_SIMPLE_RE 1 255 256#endif // GTEST_OS_CYGWIN || GTEST_OS_LINUX || GTEST_OS_MAC || 257 // GTEST_OS_SYMBIAN || GTEST_OS_SOLARIS || GTEST_OS_AIX 258 259#ifndef GTEST_HAS_EXCEPTIONS 260// The user didn't tell us whether exceptions are enabled, so we need 261// to figure it out. 262#if defined(_MSC_VER) || defined(__BORLANDC__) 263// MSVC's and C++Builder's implementations of the STL use the _HAS_EXCEPTIONS 264// macro to enable exceptions, so we'll do the same. 265// Assumes that exceptions are enabled by default. 266#ifndef _HAS_EXCEPTIONS 267#define _HAS_EXCEPTIONS 1 268#endif // _HAS_EXCEPTIONS 269#define GTEST_HAS_EXCEPTIONS _HAS_EXCEPTIONS 270#elif defined(__GNUC__) && __EXCEPTIONS 271// gcc defines __EXCEPTIONS to 1 iff exceptions are enabled. 272#define GTEST_HAS_EXCEPTIONS 1 273#elif defined(__SUNPRO_CC) 274// Sun Pro CC supports exceptions. However, there is no compile-time way of 275// detecting whether they are enabled or not. Therefore, we assume that 276// they are enabled unless the user tells us otherwise. 277#define GTEST_HAS_EXCEPTIONS 1 278#elif defined(__IBMCPP__) && __EXCEPTIONS 279// xlC defines __EXCEPTIONS to 1 iff exceptions are enabled. 280#define GTEST_HAS_EXCEPTIONS 1 281#else 282// For other compilers, we assume exceptions are disabled to be 283// conservative. 284#define GTEST_HAS_EXCEPTIONS 0 285#endif // defined(_MSC_VER) || defined(__BORLANDC__) 286#endif // GTEST_HAS_EXCEPTIONS 287 288#if !defined(GTEST_HAS_STD_STRING) 289// Even though we don't use this macro any longer, we keep it in case 290// some clients still depend on it. 291#define GTEST_HAS_STD_STRING 1 292#elif !GTEST_HAS_STD_STRING 293// The user told us that ::std::string isn't available. 294#error "Google Test cannot be used where ::std::string isn't available." 295#endif // !defined(GTEST_HAS_STD_STRING) 296 297#ifndef GTEST_HAS_GLOBAL_STRING 298// The user didn't tell us whether ::string is available, so we need 299// to figure it out. 300 301#define GTEST_HAS_GLOBAL_STRING 0 302 303#endif // GTEST_HAS_GLOBAL_STRING 304 305#ifndef GTEST_HAS_STD_WSTRING 306// The user didn't tell us whether ::std::wstring is available, so we need 307// to figure it out. 308// TODO(wan@google.com): uses autoconf to detect whether ::std::wstring 309// is available. 310 311// Cygwin 1.5 and below doesn't support ::std::wstring. 312// Cygwin 1.7 might add wstring support; this should be updated when clear. 313// Solaris' libc++ doesn't support it either. 314#define GTEST_HAS_STD_WSTRING (!(GTEST_OS_CYGWIN || GTEST_OS_SOLARIS)) 315 316#endif // GTEST_HAS_STD_WSTRING 317 318#ifndef GTEST_HAS_GLOBAL_WSTRING 319// The user didn't tell us whether ::wstring is available, so we need 320// to figure it out. 321#define GTEST_HAS_GLOBAL_WSTRING \ 322 (GTEST_HAS_STD_WSTRING && GTEST_HAS_GLOBAL_STRING) 323#endif // GTEST_HAS_GLOBAL_WSTRING 324 325// Determines whether RTTI is available. 326#ifndef GTEST_HAS_RTTI 327// The user didn't tell us whether RTTI is enabled, so we need to 328// figure it out. 329 330#ifdef _MSC_VER 331 332#ifdef _CPPRTTI // MSVC defines this macro iff RTTI is enabled. 333#define GTEST_HAS_RTTI 1 334#else 335#define GTEST_HAS_RTTI 0 336#endif 337 338// Starting with version 4.3.2, gcc defines __GXX_RTTI iff RTTI is enabled. 339#elif defined(__GNUC__) && (GTEST_GCC_VER_ >= 40302) 340 341#ifdef __GXX_RTTI 342#define GTEST_HAS_RTTI 1 343#else 344#define GTEST_HAS_RTTI 0 345#endif // __GXX_RTTI 346 347// Starting with version 9.0 IBM Visual Age defines __RTTI_ALL__ to 1 if 348// both the typeid and dynamic_cast features are present. 349#elif defined(__IBMCPP__) && (__IBMCPP__ >= 900) 350 351#ifdef __RTTI_ALL__ 352#define GTEST_HAS_RTTI 1 353#else 354#define GTEST_HAS_RTTI 0 355#endif 356 357#else 358 359// For all other compilers, we assume RTTI is enabled. 360#define GTEST_HAS_RTTI 1 361 362#endif // _MSC_VER 363 364#endif // GTEST_HAS_RTTI 365 366// It's this header's responsibility to #include <typeinfo> when RTTI 367// is enabled. 368#if GTEST_HAS_RTTI 369#include <typeinfo> 370#endif 371 372// Determines whether Google Test can use the pthreads library. 373#ifndef GTEST_HAS_PTHREAD 374// The user didn't tell us explicitly, so we assume pthreads support is 375// available on Linux and Mac. 376// 377// To disable threading support in Google Test, add -DGTEST_HAS_PTHREAD=0 378// to your compiler flags. 379#define GTEST_HAS_PTHREAD (GTEST_OS_LINUX || GTEST_OS_MAC) 380#endif // GTEST_HAS_PTHREAD 381 382// Determines whether Google Test can use tr1/tuple. You can define 383// this macro to 0 to prevent Google Test from using tuple (any 384// feature depending on tuple with be disabled in this mode). 385#ifndef GTEST_HAS_TR1_TUPLE 386// The user didn't tell us not to do it, so we assume it's OK. 387#define GTEST_HAS_TR1_TUPLE 1 388#endif // GTEST_HAS_TR1_TUPLE 389 390// Determines whether Google Test's own tr1 tuple implementation 391// should be used. 392#ifndef GTEST_USE_OWN_TR1_TUPLE 393// The user didn't tell us, so we need to figure it out. 394 395// We use our own TR1 tuple if we aren't sure the user has an 396// implementation of it already. At this time, GCC 4.0.0+ and MSVC 397// 2010 are the only mainstream compilers that come with a TR1 tuple 398// implementation. NVIDIA's CUDA NVCC compiler pretends to be GCC by 399// defining __GNUC__ and friends, but cannot compile GCC's tuple 400// implementation. MSVC 2008 (9.0) provides TR1 tuple in a 323 MB 401// Feature Pack download, which we cannot assume the user has. 402#if (defined(__GNUC__) && !defined(__CUDACC__) && (GTEST_GCC_VER_ >= 40000)) \ 403 || _MSC_VER >= 1600 404#define GTEST_USE_OWN_TR1_TUPLE 0 405#else 406#define GTEST_USE_OWN_TR1_TUPLE 1 407#endif 408 409#endif // GTEST_USE_OWN_TR1_TUPLE 410 411// To avoid conditional compilation everywhere, we make it 412// gtest-port.h's responsibility to #include the header implementing 413// tr1/tuple. 414#if GTEST_HAS_TR1_TUPLE 415 416#if GTEST_USE_OWN_TR1_TUPLE 417#include <gtest/internal/gtest-tuple.h> 418#elif GTEST_OS_SYMBIAN 419 420// On Symbian, BOOST_HAS_TR1_TUPLE causes Boost's TR1 tuple library to 421// use STLport's tuple implementation, which unfortunately doesn't 422// work as the copy of STLport distributed with Symbian is incomplete. 423// By making sure BOOST_HAS_TR1_TUPLE is undefined, we force Boost to 424// use its own tuple implementation. 425#ifdef BOOST_HAS_TR1_TUPLE 426#undef BOOST_HAS_TR1_TUPLE 427#endif // BOOST_HAS_TR1_TUPLE 428 429// This prevents <boost/tr1/detail/config.hpp>, which defines 430// BOOST_HAS_TR1_TUPLE, from being #included by Boost's <tuple>. 431#define BOOST_TR1_DETAIL_CONFIG_HPP_INCLUDED 432#include <tuple> 433 434#elif defined(__GNUC__) && (GTEST_GCC_VER_ >= 40000) 435// GCC 4.0+ implements tr1/tuple in the <tr1/tuple> header. This does 436// not conform to the TR1 spec, which requires the header to be <tuple>. 437 438#if !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302 439// Until version 4.3.2, gcc has a bug that causes <tr1/functional>, 440// which is #included by <tr1/tuple>, to not compile when RTTI is 441// disabled. _TR1_FUNCTIONAL is the header guard for 442// <tr1/functional>. Hence the following #define is a hack to prevent 443// <tr1/functional> from being included. 444#define _TR1_FUNCTIONAL 1 445#include <tr1/tuple> 446#undef _TR1_FUNCTIONAL // Allows the user to #include 447 // <tr1/functional> if he chooses to. 448#else 449#include <tr1/tuple> // NOLINT 450#endif // !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302 451 452#else 453// If the compiler is not GCC 4.0+, we assume the user is using a 454// spec-conforming TR1 implementation. 455#include <tuple> // NOLINT 456#endif // GTEST_USE_OWN_TR1_TUPLE 457 458#endif // GTEST_HAS_TR1_TUPLE 459 460// Determines whether clone(2) is supported. 461// Usually it will only be available on Linux, excluding 462// Linux on the Itanium architecture. 463// Also see http://linux.die.net/man/2/clone. 464#ifndef GTEST_HAS_CLONE 465// The user didn't tell us, so we need to figure it out. 466 467#if GTEST_OS_LINUX && !defined(__ia64__) 468#define GTEST_HAS_CLONE 1 469#else 470#define GTEST_HAS_CLONE 0 471#endif // GTEST_OS_LINUX && !defined(__ia64__) 472 473#endif // GTEST_HAS_CLONE 474 475// Determines whether to support stream redirection. This is used to test 476// output correctness and to implement death tests. 477#if !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_SYMBIAN 478#define GTEST_HAS_STREAM_REDIRECTION_ 1 479#endif // !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_SYMBIAN 480 481// Determines whether to support death tests. 482// Google Test does not support death tests for VC 7.1 and earlier as 483// abort() in a VC 7.1 application compiled as GUI in debug config 484// pops up a dialog window that cannot be suppressed programmatically. 485#if (GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS || \ 486 (GTEST_OS_WINDOWS_DESKTOP && _MSC_VER >= 1400) || \ 487 GTEST_OS_WINDOWS_MINGW || GTEST_OS_AIX) 488#define GTEST_HAS_DEATH_TEST 1 489#include <vector> // NOLINT 490#endif 491 492// We don't support MSVC 7.1 with exceptions disabled now. Therefore 493// all the compilers we care about are adequate for supporting 494// value-parameterized tests. 495#define GTEST_HAS_PARAM_TEST 1 496 497// Determines whether to support type-driven tests. 498 499// Typed tests need <typeinfo> and variadic macros, which GCC, VC++ 8.0, 500// Sun Pro CC, and IBM Visual Age support. 501#if defined(__GNUC__) || (_MSC_VER >= 1400) || defined(__SUNPRO_CC) || \ 502 defined(__IBMCPP__) 503#define GTEST_HAS_TYPED_TEST 1 504#define GTEST_HAS_TYPED_TEST_P 1 505#endif 506 507// Determines whether to support Combine(). This only makes sense when 508// value-parameterized tests are enabled. The implementation doesn't 509// work on Sun Studio since it doesn't understand templated conversion 510// operators. 511#if GTEST_HAS_PARAM_TEST && GTEST_HAS_TR1_TUPLE && !defined(__SUNPRO_CC) 512#define GTEST_HAS_COMBINE 1 513#endif 514 515// Determines whether the system compiler uses UTF-16 for encoding wide strings. 516#define GTEST_WIDE_STRING_USES_UTF16_ \ 517 (GTEST_OS_WINDOWS || GTEST_OS_CYGWIN || GTEST_OS_SYMBIAN || GTEST_OS_AIX) 518 519// Defines some utility macros. 520 521// The GNU compiler emits a warning if nested "if" statements are followed by 522// an "else" statement and braces are not used to explicitly disambiguate the 523// "else" binding. This leads to problems with code like: 524// 525// if (gate) 526// ASSERT_*(condition) << "Some message"; 527// 528// The "switch (0) case 0:" idiom is used to suppress this. 529#ifdef __INTEL_COMPILER 530#define GTEST_AMBIGUOUS_ELSE_BLOCKER_ 531#else 532#define GTEST_AMBIGUOUS_ELSE_BLOCKER_ switch (0) case 0: // NOLINT 533#endif 534 535// Use this annotation at the end of a struct/class definition to 536// prevent the compiler from optimizing away instances that are never 537// used. This is useful when all interesting logic happens inside the 538// c'tor and / or d'tor. Example: 539// 540// struct Foo { 541// Foo() { ... } 542// } GTEST_ATTRIBUTE_UNUSED_; 543// 544// Also use it after a variable or parameter declaration to tell the 545// compiler the variable/parameter does not have to be used. 546#if defined(__GNUC__) && !defined(COMPILER_ICC) 547#define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused)) 548#else 549#define GTEST_ATTRIBUTE_UNUSED_ 550#endif 551 552// A macro to disallow operator= 553// This should be used in the private: declarations for a class. 554#define GTEST_DISALLOW_ASSIGN_(type)\ 555 void operator=(type const &) 556 557// A macro to disallow copy constructor and operator= 558// This should be used in the private: declarations for a class. 559#define GTEST_DISALLOW_COPY_AND_ASSIGN_(type)\ 560 type(type const &);\ 561 GTEST_DISALLOW_ASSIGN_(type) 562 563// Tell the compiler to warn about unused return values for functions declared 564// with this macro. The macro should be used on function declarations 565// following the argument list: 566// 567// Sprocket* AllocateSprocket() GTEST_MUST_USE_RESULT_; 568#if defined(__GNUC__) && (GTEST_GCC_VER_ >= 30400) && !defined(COMPILER_ICC) 569#define GTEST_MUST_USE_RESULT_ __attribute__ ((warn_unused_result)) 570#else 571#define GTEST_MUST_USE_RESULT_ 572#endif // __GNUC__ && (GTEST_GCC_VER_ >= 30400) && !COMPILER_ICC 573 574// Determine whether the compiler supports Microsoft's Structured Exception 575// Handling. This is supported by several Windows compilers but generally 576// does not exist on any other system. 577#ifndef GTEST_HAS_SEH 578// The user didn't tell us, so we need to figure it out. 579 580#if defined(_MSC_VER) || defined(__BORLANDC__) 581// These two compilers are known to support SEH. 582#define GTEST_HAS_SEH 1 583#else 584// Assume no SEH. 585#define GTEST_HAS_SEH 0 586#endif 587 588#endif // GTEST_HAS_SEH 589 590#ifdef _MSC_VER 591 592#if GTEST_LINKED_AS_SHARED_LIBRARY 593#define GTEST_API_ __declspec(dllimport) 594#elif GTEST_CREATE_SHARED_LIBRARY 595#define GTEST_API_ __declspec(dllexport) 596#endif 597 598#endif // _MSC_VER 599 600#ifndef GTEST_API_ 601#define GTEST_API_ 602#endif 603 604namespace testing { 605 606class Message; 607 608namespace internal { 609 610class String; 611 612typedef ::std::stringstream StrStream; 613 614// A helper for suppressing warnings on constant condition. It just 615// returns 'condition'. 616GTEST_API_ bool IsTrue(bool condition); 617 618// Defines scoped_ptr. 619 620// This implementation of scoped_ptr is PARTIAL - it only contains 621// enough stuff to satisfy Google Test's need. 622template <typename T> 623class scoped_ptr { 624 public: 625 typedef T element_type; 626 627 explicit scoped_ptr(T* p = NULL) : ptr_(p) {} 628 ~scoped_ptr() { reset(); } 629 630 T& operator*() const { return *ptr_; } 631 T* operator->() const { return ptr_; } 632 T* get() const { return ptr_; } 633 634 T* release() { 635 T* const ptr = ptr_; 636 ptr_ = NULL; 637 return ptr; 638 } 639 640 void reset(T* p = NULL) { 641 if (p != ptr_) { 642 if (IsTrue(sizeof(T) > 0)) { // Makes sure T is a complete type. 643 delete ptr_; 644 } 645 ptr_ = p; 646 } 647 } 648 private: 649 T* ptr_; 650 651 GTEST_DISALLOW_COPY_AND_ASSIGN_(scoped_ptr); 652}; 653 654// Defines RE. 655 656// A simple C++ wrapper for <regex.h>. It uses the POSIX Extended 657// Regular Expression syntax. 658class GTEST_API_ RE { 659 public: 660 // A copy constructor is required by the Standard to initialize object 661 // references from r-values. 662 RE(const RE& other) { Init(other.pattern()); } 663 664 // Constructs an RE from a string. 665 RE(const ::std::string& regex) { Init(regex.c_str()); } // NOLINT 666 667#if GTEST_HAS_GLOBAL_STRING 668 RE(const ::string& regex) { Init(regex.c_str()); } // NOLINT 669#endif // GTEST_HAS_GLOBAL_STRING 670 671 RE(const char* regex) { Init(regex); } // NOLINT 672 ~RE(); 673 674 // Returns the string representation of the regex. 675 const char* pattern() const { return pattern_; } 676 677 // FullMatch(str, re) returns true iff regular expression re matches 678 // the entire str. 679 // PartialMatch(str, re) returns true iff regular expression re 680 // matches a substring of str (including str itself). 681 // 682 // TODO(wan@google.com): make FullMatch() and PartialMatch() work 683 // when str contains NUL characters. 684 static bool FullMatch(const ::std::string& str, const RE& re) { 685 return FullMatch(str.c_str(), re); 686 } 687 static bool PartialMatch(const ::std::string& str, const RE& re) { 688 return PartialMatch(str.c_str(), re); 689 } 690 691#if GTEST_HAS_GLOBAL_STRING 692 static bool FullMatch(const ::string& str, const RE& re) { 693 return FullMatch(str.c_str(), re); 694 } 695 static bool PartialMatch(const ::string& str, const RE& re) { 696 return PartialMatch(str.c_str(), re); 697 } 698#endif // GTEST_HAS_GLOBAL_STRING 699 700 static bool FullMatch(const char* str, const RE& re); 701 static bool PartialMatch(const char* str, const RE& re); 702 703 private: 704 void Init(const char* regex); 705 706 // We use a const char* instead of a string, as Google Test may be used 707 // where string is not available. We also do not use Google Test's own 708 // String type here, in order to simplify dependencies between the 709 // files. 710 const char* pattern_; 711 bool is_valid_; 712#if GTEST_USES_POSIX_RE 713 regex_t full_regex_; // For FullMatch(). 714 regex_t partial_regex_; // For PartialMatch(). 715#else // GTEST_USES_SIMPLE_RE 716 const char* full_pattern_; // For FullMatch(); 717#endif 718 719 GTEST_DISALLOW_ASSIGN_(RE); 720}; 721 722// Defines logging utilities: 723// GTEST_LOG_(severity) - logs messages at the specified severity level. The 724// message itself is streamed into the macro. 725// LogToStderr() - directs all log messages to stderr. 726// FlushInfoLog() - flushes informational log messages. 727 728enum GTestLogSeverity { 729 GTEST_INFO, 730 GTEST_WARNING, 731 GTEST_ERROR, 732 GTEST_FATAL 733}; 734 735// Formats log entry severity, provides a stream object for streaming the 736// log message, and terminates the message with a newline when going out of 737// scope. 738class GTEST_API_ GTestLog { 739 public: 740 GTestLog(GTestLogSeverity severity, const char* file, int line); 741 742 // Flushes the buffers and, if severity is GTEST_FATAL, aborts the program. 743 ~GTestLog(); 744 745 ::std::ostream& GetStream() { return ::std::cerr; } 746 747 private: 748 const GTestLogSeverity severity_; 749 750 GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestLog); 751}; 752 753#define GTEST_LOG_(severity) \ 754 ::testing::internal::GTestLog(::testing::internal::GTEST_##severity, \ 755 __FILE__, __LINE__).GetStream() 756 757inline void LogToStderr() {} 758inline void FlushInfoLog() { fflush(NULL); } 759 760// INTERNAL IMPLEMENTATION - DO NOT USE. 761// 762// GTEST_CHECK_ is an all-mode assert. It aborts the program if the condition 763// is not satisfied. 764// Synopsys: 765// GTEST_CHECK_(boolean_condition); 766// or 767// GTEST_CHECK_(boolean_condition) << "Additional message"; 768// 769// This checks the condition and if the condition is not satisfied 770// it prints message about the condition violation, including the 771// condition itself, plus additional message streamed into it, if any, 772// and then it aborts the program. It aborts the program irrespective of 773// whether it is built in the debug mode or not. 774#define GTEST_CHECK_(condition) \ 775 GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ 776 if (::testing::internal::IsTrue(condition)) \ 777 ; \ 778 else \ 779 GTEST_LOG_(FATAL) << "Condition " #condition " failed. " 780 781// An all-mode assert to verify that the given POSIX-style function 782// call returns 0 (indicating success). Known limitation: this 783// doesn't expand to a balanced 'if' statement, so enclose the macro 784// in {} if you need to use it as the only statement in an 'if' 785// branch. 786#define GTEST_CHECK_POSIX_SUCCESS_(posix_call) \ 787 if (const int gtest_error = (posix_call)) \ 788 GTEST_LOG_(FATAL) << #posix_call << "failed with error " \ 789 << gtest_error 790 791// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE. 792// 793// Downcasts the pointer of type Base to Derived. 794// Derived must be a subclass of Base. The parameter MUST 795// point to a class of type Derived, not any subclass of it. 796// When RTTI is available, the function performs a runtime 797// check to enforce this. 798template <class Derived, class Base> 799Derived* CheckedDowncastToActualType(Base* base) { 800#if GTEST_HAS_RTTI 801 GTEST_CHECK_(typeid(*base) == typeid(Derived)); 802 return dynamic_cast<Derived*>(base); // NOLINT 803#else 804 return static_cast<Derived*>(base); // Poor man's downcast. 805#endif 806} 807 808#if GTEST_HAS_STREAM_REDIRECTION_ 809 810// Defines the stderr capturer: 811// CaptureStdout - starts capturing stdout. 812// GetCapturedStdout - stops capturing stdout and returns the captured string. 813// CaptureStderr - starts capturing stderr. 814// GetCapturedStderr - stops capturing stderr and returns the captured string. 815// 816GTEST_API_ void CaptureStdout(); 817GTEST_API_ String GetCapturedStdout(); 818GTEST_API_ void CaptureStderr(); 819GTEST_API_ String GetCapturedStderr(); 820 821#endif // GTEST_HAS_STREAM_REDIRECTION_ 822 823 824#if GTEST_HAS_DEATH_TEST 825 826// A copy of all command line arguments. Set by InitGoogleTest(). 827extern ::std::vector<String> g_argvs; 828 829// GTEST_HAS_DEATH_TEST implies we have ::std::string. 830const ::std::vector<String>& GetArgvs(); 831 832#endif // GTEST_HAS_DEATH_TEST 833 834// Defines synchronization primitives. 835 836#if GTEST_HAS_PTHREAD 837 838// Sleeps for (roughly) n milli-seconds. This function is only for 839// testing Google Test's own constructs. Don't use it in user tests, 840// either directly or indirectly. 841inline void SleepMilliseconds(int n) { 842 const timespec time = { 843 0, // 0 seconds. 844 n * 1000L * 1000L, // And n ms. 845 }; 846 nanosleep(&time, NULL); 847} 848 849// Allows a controller thread to pause execution of newly created 850// threads until notified. Instances of this class must be created 851// and destroyed in the controller thread. 852// 853// This class is only for testing Google Test's own constructs. Do not 854// use it in user tests, either directly or indirectly. 855class Notification { 856 public: 857 Notification() : notified_(false) {} 858 859 // Notifies all threads created with this notification to start. Must 860 // be called from the controller thread. 861 void Notify() { notified_ = true; } 862 863 // Blocks until the controller thread notifies. Must be called from a test 864 // thread. 865 void WaitForNotification() { 866 while(!notified_) { 867 SleepMilliseconds(10); 868 } 869 } 870 871 private: 872 volatile bool notified_; 873 874 GTEST_DISALLOW_COPY_AND_ASSIGN_(Notification); 875}; 876 877// As a C-function, ThreadFuncWithCLinkage cannot be templated itself. 878// Consequently, it cannot select a correct instantiation of ThreadWithParam 879// in order to call its Run(). Introducing ThreadWithParamBase as a 880// non-templated base class for ThreadWithParam allows us to bypass this 881// problem. 882class ThreadWithParamBase { 883 public: 884 virtual ~ThreadWithParamBase() {} 885 virtual void Run() = 0; 886}; 887 888// pthread_create() accepts a pointer to a function type with the C linkage. 889// According to the Standard (7.5/1), function types with different linkages 890// are different even if they are otherwise identical. Some compilers (for 891// example, SunStudio) treat them as different types. Since class methods 892// cannot be defined with C-linkage we need to define a free C-function to 893// pass into pthread_create(). 894extern "C" inline void* ThreadFuncWithCLinkage(void* thread) { 895 static_cast<ThreadWithParamBase*>(thread)->Run(); 896 return NULL; 897} 898 899// Helper class for testing Google Test's multi-threading constructs. 900// To use it, write: 901// 902// void ThreadFunc(int param) { /* Do things with param */ } 903// Notification thread_can_start; 904// ... 905// // The thread_can_start parameter is optional; you can supply NULL. 906// ThreadWithParam<int> thread(&ThreadFunc, 5, &thread_can_start); 907// thread_can_start.Notify(); 908// 909// These classes are only for testing Google Test's own constructs. Do 910// not use them in user tests, either directly or indirectly. 911template <typename T> 912class ThreadWithParam : public ThreadWithParamBase { 913 public: 914 typedef void (*UserThreadFunc)(T); 915 916 ThreadWithParam( 917 UserThreadFunc func, T param, Notification* thread_can_start) 918 : func_(func), 919 param_(param), 920 thread_can_start_(thread_can_start), 921 finished_(false) { 922 ThreadWithParamBase* const base = this; 923 // The thread can be created only after all fields except thread_ 924 // have been initialized. 925 GTEST_CHECK_POSIX_SUCCESS_( 926 pthread_create(&thread_, 0, &ThreadFuncWithCLinkage, base)); 927 } 928 ~ThreadWithParam() { Join(); } 929 930 void Join() { 931 if (!finished_) { 932 GTEST_CHECK_POSIX_SUCCESS_(pthread_join(thread_, 0)); 933 finished_ = true; 934 } 935 } 936 937 virtual void Run() { 938 if (thread_can_start_ != NULL) 939 thread_can_start_->WaitForNotification(); 940 func_(param_); 941 } 942 943 private: 944 const UserThreadFunc func_; // User-supplied thread function. 945 const T param_; // User-supplied parameter to the thread function. 946 // When non-NULL, used to block execution until the controller thread 947 // notifies. 948 Notification* const thread_can_start_; 949 bool finished_; // true iff we know that the thread function has finished. 950 pthread_t thread_; // The native thread object. 951 952 GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadWithParam); 953}; 954 955// gtest-port.h guarantees to #include <pthread.h> when GTEST_HAS_PTHREAD is 956// true. 957#include <pthread.h> 958 959// MutexBase and Mutex implement mutex on pthreads-based platforms. They 960// are used in conjunction with class MutexLock: 961// 962// Mutex mutex; 963// ... 964// MutexLock lock(&mutex); // Acquires the mutex and releases it at the end 965// // of the current scope. 966// 967// MutexBase implements behavior for both statically and dynamically 968// allocated mutexes. Do not use MutexBase directly. Instead, write 969// the following to define a static mutex: 970// 971// GTEST_DEFINE_STATIC_MUTEX_(g_some_mutex); 972// 973// You can forward declare a static mutex like this: 974// 975// GTEST_DECLARE_STATIC_MUTEX_(g_some_mutex); 976// 977// To create a dynamic mutex, just define an object of type Mutex. 978class MutexBase { 979 public: 980 // Acquires this mutex. 981 void Lock() { 982 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_lock(&mutex_)); 983 owner_ = pthread_self(); 984 } 985 986 // Releases this mutex. 987 void Unlock() { 988 // We don't protect writing to owner_ here, as it's the caller's 989 // responsibility to ensure that the current thread holds the 990 // mutex when this is called. 991 owner_ = 0; 992 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_unlock(&mutex_)); 993 } 994 995 // Does nothing if the current thread holds the mutex. Otherwise, crashes 996 // with high probability. 997 void AssertHeld() const { 998 GTEST_CHECK_(owner_ == pthread_self()) 999 << "The current thread is not holding the mutex @" << this; 1000 } 1001 1002 // A static mutex may be used before main() is entered. It may even 1003 // be used before the dynamic initialization stage. Therefore we 1004 // must be able to initialize a static mutex object at link time. 1005 // This means MutexBase has to be a POD and its member variables 1006 // have to be public. 1007 public: 1008 pthread_mutex_t mutex_; // The underlying pthread mutex. 1009 pthread_t owner_; // The thread holding the mutex; 0 means no one holds it. 1010}; 1011 1012// Forward-declares a static mutex. 1013#define GTEST_DECLARE_STATIC_MUTEX_(mutex) \ 1014 extern ::testing::internal::MutexBase mutex 1015 1016// Defines and statically (i.e. at link time) initializes a static mutex. 1017#define GTEST_DEFINE_STATIC_MUTEX_(mutex) \ 1018 ::testing::internal::MutexBase mutex = { PTHREAD_MUTEX_INITIALIZER, 0 } 1019 1020// The Mutex class can only be used for mutexes created at runtime. It 1021// shares its API with MutexBase otherwise. 1022class Mutex : public MutexBase { 1023 public: 1024 Mutex() { 1025 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_init(&mutex_, NULL)); 1026 owner_ = 0; 1027 } 1028 ~Mutex() { 1029 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_destroy(&mutex_)); 1030 } 1031 1032 private: 1033 GTEST_DISALLOW_COPY_AND_ASSIGN_(Mutex); 1034}; 1035 1036// We cannot name this class MutexLock as the ctor declaration would 1037// conflict with a macro named MutexLock, which is defined on some 1038// platforms. Hence the typedef trick below. 1039class GTestMutexLock { 1040 public: 1041 explicit GTestMutexLock(MutexBase* mutex) 1042 : mutex_(mutex) { mutex_->Lock(); } 1043 1044 ~GTestMutexLock() { mutex_->Unlock(); } 1045 1046 private: 1047 MutexBase* const mutex_; 1048 1049 GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestMutexLock); 1050}; 1051 1052typedef GTestMutexLock MutexLock; 1053 1054// Helpers for ThreadLocal. 1055 1056// pthread_key_create() requires DeleteThreadLocalValue() to have 1057// C-linkage. Therefore it cannot be templatized to access 1058// ThreadLocal<T>. Hence the need for class 1059// ThreadLocalValueHolderBase. 1060class ThreadLocalValueHolderBase { 1061 public: 1062 virtual ~ThreadLocalValueHolderBase() {} 1063}; 1064 1065// Called by pthread to delete thread-local data stored by 1066// pthread_setspecific(). 1067extern "C" inline void DeleteThreadLocalValue(void* value_holder) { 1068 delete static_cast<ThreadLocalValueHolderBase*>(value_holder); 1069} 1070 1071// Implements thread-local storage on pthreads-based systems. 1072// 1073// // Thread 1 1074// ThreadLocal<int> tl(100); // 100 is the default value for each thread. 1075// 1076// // Thread 2 1077// tl.set(150); // Changes the value for thread 2 only. 1078// EXPECT_EQ(150, tl.get()); 1079// 1080// // Thread 1 1081// EXPECT_EQ(100, tl.get()); // In thread 1, tl has the original value. 1082// tl.set(200); 1083// EXPECT_EQ(200, tl.get()); 1084// 1085// The template type argument T must have a public copy constructor. 1086// In addition, the default ThreadLocal constructor requires T to have 1087// a public default constructor. 1088// 1089// An object managed for a thread by a ThreadLocal instance is deleted 1090// when the thread exits. Or, if the ThreadLocal instance dies in 1091// that thread, when the ThreadLocal dies. It's the user's 1092// responsibility to ensure that all other threads using a ThreadLocal 1093// have exited when it dies, or the per-thread objects for those 1094// threads will not be deleted. 1095// 1096// Google Test only uses global ThreadLocal objects. That means they 1097// will die after main() has returned. Therefore, no per-thread 1098// object managed by Google Test will be leaked as long as all threads 1099// using Google Test have exited when main() returns. 1100template <typename T> 1101class ThreadLocal { 1102 public: 1103 ThreadLocal() : key_(CreateKey()), 1104 default_() {} 1105 explicit ThreadLocal(const T& value) : key_(CreateKey()), 1106 default_(value) {} 1107 1108 ~ThreadLocal() { 1109 // Destroys the managed object for the current thread, if any. 1110 DeleteThreadLocalValue(pthread_getspecific(key_)); 1111 1112 // Releases resources associated with the key. This will *not* 1113 // delete managed objects for other threads. 1114 GTEST_CHECK_POSIX_SUCCESS_(pthread_key_delete(key_)); 1115 } 1116 1117 T* pointer() { return GetOrCreateValue(); } 1118 const T* pointer() const { return GetOrCreateValue(); } 1119 const T& get() const { return *pointer(); } 1120 void set(const T& value) { *pointer() = value; } 1121 1122 private: 1123 // Holds a value of type T. 1124 class ValueHolder : public ThreadLocalValueHolderBase { 1125 public: 1126 explicit ValueHolder(const T& value) : value_(value) {} 1127 1128 T* pointer() { return &value_; } 1129 1130 private: 1131 T value_; 1132 GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolder); 1133 }; 1134 1135 static pthread_key_t CreateKey() { 1136 pthread_key_t key; 1137 // When a thread exits, DeleteThreadLocalValue() will be called on 1138 // the object managed for that thread. 1139 GTEST_CHECK_POSIX_SUCCESS_( 1140 pthread_key_create(&key, &DeleteThreadLocalValue)); 1141 return key; 1142 } 1143 1144 T* GetOrCreateValue() const { 1145 ThreadLocalValueHolderBase* const holder = 1146 static_cast<ThreadLocalValueHolderBase*>(pthread_getspecific(key_)); 1147 if (holder != NULL) { 1148 return CheckedDowncastToActualType<ValueHolder>(holder)->pointer(); 1149 } 1150 1151 ValueHolder* const new_holder = new ValueHolder(default_); 1152 ThreadLocalValueHolderBase* const holder_base = new_holder; 1153 GTEST_CHECK_POSIX_SUCCESS_(pthread_setspecific(key_, holder_base)); 1154 return new_holder->pointer(); 1155 } 1156 1157 // A key pthreads uses for looking up per-thread values. 1158 const pthread_key_t key_; 1159 const T default_; // The default value for each thread. 1160 1161 GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocal); 1162}; 1163 1164#define GTEST_IS_THREADSAFE 1 1165 1166#else // GTEST_HAS_PTHREAD 1167 1168// A dummy implementation of synchronization primitives (mutex, lock, 1169// and thread-local variable). Necessary for compiling Google Test where 1170// mutex is not supported - using Google Test in multiple threads is not 1171// supported on such platforms. 1172 1173class Mutex { 1174 public: 1175 Mutex() {} 1176 void AssertHeld() const {} 1177}; 1178 1179#define GTEST_DECLARE_STATIC_MUTEX_(mutex) \ 1180 extern ::testing::internal::Mutex mutex 1181 1182#define GTEST_DEFINE_STATIC_MUTEX_(mutex) ::testing::internal::Mutex mutex 1183 1184class GTestMutexLock { 1185 public: 1186 explicit GTestMutexLock(Mutex*) {} // NOLINT 1187}; 1188 1189typedef GTestMutexLock MutexLock; 1190 1191template <typename T> 1192class ThreadLocal { 1193 public: 1194 ThreadLocal() : value_() {} 1195 explicit ThreadLocal(const T& value) : value_(value) {} 1196 T* pointer() { return &value_; } 1197 const T* pointer() const { return &value_; } 1198 const T& get() const { return value_; } 1199 void set(const T& value) { value_ = value; } 1200 private: 1201 T value_; 1202}; 1203 1204// The above synchronization primitives have dummy implementations. 1205// Therefore Google Test is not thread-safe. 1206#define GTEST_IS_THREADSAFE 0 1207 1208#endif // GTEST_HAS_PTHREAD 1209 1210// Returns the number of threads running in the process, or 0 to indicate that 1211// we cannot detect it. 1212GTEST_API_ size_t GetThreadCount(); 1213 1214// Passing non-POD classes through ellipsis (...) crashes the ARM 1215// compiler and generates a warning in Sun Studio. The Nokia Symbian 1216// and the IBM XL C/C++ compiler try to instantiate a copy constructor 1217// for objects passed through ellipsis (...), failing for uncopyable 1218// objects. We define this to ensure that only POD is passed through 1219// ellipsis on these systems. 1220#if defined(__SYMBIAN32__) || defined(__IBMCPP__) || defined(__SUNPRO_CC) 1221// We lose support for NULL detection where the compiler doesn't like 1222// passing non-POD classes through ellipsis (...). 1223#define GTEST_ELLIPSIS_NEEDS_POD_ 1 1224#else 1225#define GTEST_CAN_COMPARE_NULL 1 1226#endif 1227 1228// The Nokia Symbian and IBM XL C/C++ compilers cannot decide between 1229// const T& and const T* in a function template. These compilers 1230// _can_ decide between class template specializations for T and T*, 1231// so a tr1::type_traits-like is_pointer works. 1232#if defined(__SYMBIAN32__) || defined(__IBMCPP__) 1233#define GTEST_NEEDS_IS_POINTER_ 1 1234#endif 1235 1236template <bool bool_value> 1237struct bool_constant { 1238 typedef bool_constant<bool_value> type; 1239 static const bool value = bool_value; 1240}; 1241template <bool bool_value> const bool bool_constant<bool_value>::value; 1242 1243typedef bool_constant<false> false_type; 1244typedef bool_constant<true> true_type; 1245 1246template <typename T> 1247struct is_pointer : public false_type {}; 1248 1249template <typename T> 1250struct is_pointer<T*> : public true_type {}; 1251 1252#if GTEST_OS_WINDOWS 1253#define GTEST_PATH_SEP_ "\\" 1254#define GTEST_HAS_ALT_PATH_SEP_ 1 1255// The biggest signed integer type the compiler supports. 1256typedef __int64 BiggestInt; 1257#else 1258#define GTEST_PATH_SEP_ "/" 1259#define GTEST_HAS_ALT_PATH_SEP_ 0 1260typedef long long BiggestInt; // NOLINT 1261#endif // GTEST_OS_WINDOWS 1262 1263// The testing::internal::posix namespace holds wrappers for common 1264// POSIX functions. These wrappers hide the differences between 1265// Windows/MSVC and POSIX systems. Since some compilers define these 1266// standard functions as macros, the wrapper cannot have the same name 1267// as the wrapped function. 1268 1269namespace posix { 1270 1271// Functions with a different name on Windows. 1272 1273#if GTEST_OS_WINDOWS 1274 1275typedef struct _stat StatStruct; 1276 1277#ifdef __BORLANDC__ 1278inline int IsATTY(int fd) { return isatty(fd); } 1279inline int StrCaseCmp(const char* s1, const char* s2) { 1280 return stricmp(s1, s2); 1281} 1282inline char* StrDup(const char* src) { return strdup(src); } 1283#else // !__BORLANDC__ 1284#if GTEST_OS_WINDOWS_MOBILE 1285inline int IsATTY(int /* fd */) { return 0; } 1286#else 1287inline int IsATTY(int fd) { return _isatty(fd); } 1288#endif // GTEST_OS_WINDOWS_MOBILE 1289inline int StrCaseCmp(const char* s1, const char* s2) { 1290 return _stricmp(s1, s2); 1291} 1292inline char* StrDup(const char* src) { return _strdup(src); } 1293#endif // __BORLANDC__ 1294 1295#if GTEST_OS_WINDOWS_MOBILE 1296inline int FileNo(FILE* file) { return reinterpret_cast<int>(_fileno(file)); } 1297// Stat(), RmDir(), and IsDir() are not needed on Windows CE at this 1298// time and thus not defined there. 1299#else 1300inline int FileNo(FILE* file) { return _fileno(file); } 1301inline int Stat(const char* path, StatStruct* buf) { return _stat(path, buf); } 1302inline int RmDir(const char* dir) { return _rmdir(dir); } 1303inline bool IsDir(const StatStruct& st) { 1304 return (_S_IFDIR & st.st_mode) != 0; 1305} 1306#endif // GTEST_OS_WINDOWS_MOBILE 1307 1308#else 1309 1310typedef struct stat StatStruct; 1311 1312inline int FileNo(FILE* file) { return fileno(file); } 1313inline int IsATTY(int fd) { return isatty(fd); } 1314inline int Stat(const char* path, StatStruct* buf) { return stat(path, buf); } 1315inline int StrCaseCmp(const char* s1, const char* s2) { 1316 return strcasecmp(s1, s2); 1317} 1318inline char* StrDup(const char* src) { return strdup(src); } 1319inline int RmDir(const char* dir) { return rmdir(dir); } 1320inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); } 1321 1322#endif // GTEST_OS_WINDOWS 1323 1324// Functions deprecated by MSVC 8.0. 1325 1326#ifdef _MSC_VER 1327// Temporarily disable warning 4996 (deprecated function). 1328#pragma warning(push) 1329#pragma warning(disable:4996) 1330#endif 1331 1332inline const char* StrNCpy(char* dest, const char* src, size_t n) { 1333 return strncpy(dest, src, n); 1334} 1335 1336// ChDir(), FReopen(), FDOpen(), Read(), Write(), Close(), and 1337// StrError() aren't needed on Windows CE at this time and thus not 1338// defined there. 1339 1340#if !GTEST_OS_WINDOWS_MOBILE 1341inline int ChDir(const char* dir) { return chdir(dir); } 1342#endif 1343inline FILE* FOpen(const char* path, const char* mode) { 1344 return fopen(path, mode); 1345} 1346#if !GTEST_OS_WINDOWS_MOBILE 1347inline FILE *FReopen(const char* path, const char* mode, FILE* stream) { 1348 return freopen(path, mode, stream); 1349} 1350inline FILE* FDOpen(int fd, const char* mode) { return fdopen(fd, mode); } 1351#endif 1352inline int FClose(FILE* fp) { return fclose(fp); } 1353#if !GTEST_OS_WINDOWS_MOBILE 1354inline int Read(int fd, void* buf, unsigned int count) { 1355 return static_cast<int>(read(fd, buf, count)); 1356} 1357inline int Write(int fd, const void* buf, unsigned int count) { 1358 return static_cast<int>(write(fd, buf, count)); 1359} 1360inline int Close(int fd) { return close(fd); } 1361inline const char* StrError(int errnum) { return strerror(errnum); } 1362#endif 1363inline const char* GetEnv(const char* name) { 1364#if GTEST_OS_WINDOWS_MOBILE 1365 // We are on Windows CE, which has no environment variables. 1366 return NULL; 1367#elif defined(__BORLANDC__) || defined(__SunOS_5_8) || defined(__SunOS_5_9) 1368 // Environment variables which we programmatically clear will be set to the 1369 // empty string rather than unset (NULL). Handle that case. 1370 const char* const env = getenv(name); 1371 return (env != NULL && env[0] != '\0') ? env : NULL; 1372#else 1373 return getenv(name); 1374#endif 1375} 1376 1377#ifdef _MSC_VER 1378#pragma warning(pop) // Restores the warning state. 1379#endif 1380 1381#if GTEST_OS_WINDOWS_MOBILE 1382// Windows CE has no C library. The abort() function is used in 1383// several places in Google Test. This implementation provides a reasonable 1384// imitation of standard behaviour. 1385void Abort(); 1386#else 1387inline void Abort() { abort(); } 1388#endif // GTEST_OS_WINDOWS_MOBILE 1389 1390} // namespace posix 1391 1392// The maximum number a BiggestInt can represent. This definition 1393// works no matter BiggestInt is represented in one's complement or 1394// two's complement. 1395// 1396// We cannot rely on numeric_limits in STL, as __int64 and long long 1397// are not part of standard C++ and numeric_limits doesn't need to be 1398// defined for them. 1399const BiggestInt kMaxBiggestInt = 1400 ~(static_cast<BiggestInt>(1) << (8*sizeof(BiggestInt) - 1)); 1401 1402// This template class serves as a compile-time function from size to 1403// type. It maps a size in bytes to a primitive type with that 1404// size. e.g. 1405// 1406// TypeWithSize<4>::UInt 1407// 1408// is typedef-ed to be unsigned int (unsigned integer made up of 4 1409// bytes). 1410// 1411// Such functionality should belong to STL, but I cannot find it 1412// there. 1413// 1414// Google Test uses this class in the implementation of floating-point 1415// comparison. 1416// 1417// For now it only handles UInt (unsigned int) as that's all Google Test 1418// needs. Other types can be easily added in the future if need 1419// arises. 1420template <size_t size> 1421class TypeWithSize { 1422 public: 1423 // This prevents the user from using TypeWithSize<N> with incorrect 1424 // values of N. 1425 typedef void UInt; 1426}; 1427 1428// The specialization for size 4. 1429template <> 1430class TypeWithSize<4> { 1431 public: 1432 // unsigned int has size 4 in both gcc and MSVC. 1433 // 1434 // As base/basictypes.h doesn't compile on Windows, we cannot use 1435 // uint32, uint64, and etc here. 1436 typedef int Int; 1437 typedef unsigned int UInt; 1438}; 1439 1440// The specialization for size 8. 1441template <> 1442class TypeWithSize<8> { 1443 public: 1444#if GTEST_OS_WINDOWS 1445 typedef __int64 Int; 1446 typedef unsigned __int64 UInt; 1447#else 1448 typedef long long Int; // NOLINT 1449 typedef unsigned long long UInt; // NOLINT 1450#endif // GTEST_OS_WINDOWS 1451}; 1452 1453// Integer types of known sizes. 1454typedef TypeWithSize<4>::Int Int32; 1455typedef TypeWithSize<4>::UInt UInt32; 1456typedef TypeWithSize<8>::Int Int64; 1457typedef TypeWithSize<8>::UInt UInt64; 1458typedef TypeWithSize<8>::Int TimeInMillis; // Represents time in milliseconds. 1459 1460// Utilities for command line flags and environment variables. 1461 1462// Macro for referencing flags. 1463#define GTEST_FLAG(name) FLAGS_gtest_##name 1464 1465// Macros for declaring flags. 1466#define GTEST_DECLARE_bool_(name) GTEST_API_ extern bool GTEST_FLAG(name) 1467#define GTEST_DECLARE_int32_(name) \ 1468 GTEST_API_ extern ::testing::internal::Int32 GTEST_FLAG(name) 1469#define GTEST_DECLARE_string_(name) \ 1470 GTEST_API_ extern ::testing::internal::String GTEST_FLAG(name) 1471 1472// Macros for defining flags. 1473#define GTEST_DEFINE_bool_(name, default_val, doc) \ 1474 GTEST_API_ bool GTEST_FLAG(name) = (default_val) 1475#define GTEST_DEFINE_int32_(name, default_val, doc) \ 1476 GTEST_API_ ::testing::internal::Int32 GTEST_FLAG(name) = (default_val) 1477#define GTEST_DEFINE_string_(name, default_val, doc) \ 1478 GTEST_API_ ::testing::internal::String GTEST_FLAG(name) = (default_val) 1479 1480// Parses 'str' for a 32-bit signed integer. If successful, writes the result 1481// to *value and returns true; otherwise leaves *value unchanged and returns 1482// false. 1483// TODO(chandlerc): Find a better way to refactor flag and environment parsing 1484// out of both gtest-port.cc and gtest.cc to avoid exporting this utility 1485// function. 1486bool ParseInt32(const Message& src_text, const char* str, Int32* value); 1487 1488// Parses a bool/Int32/string from the environment variable 1489// corresponding to the given Google Test flag. 1490bool BoolFromGTestEnv(const char* flag, bool default_val); 1491GTEST_API_ Int32 Int32FromGTestEnv(const char* flag, Int32 default_val); 1492const char* StringFromGTestEnv(const char* flag, const char* default_val); 1493 1494} // namespace internal 1495} // namespace testing 1496 1497#endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ 1498