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