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