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