Subversion Repositories Kolibri OS

Rev

Go to most recent revision | Blame | Last modification | View Log | RSS feed

  1. // Copyright 2005, Google Inc.
  2. // All rights reserved.
  3. //
  4. // Redistribution and use in source and binary forms, with or without
  5. // modification, are permitted provided that the following conditions are
  6. // met:
  7. //
  8. //     * Redistributions of source code must retain the above copyright
  9. // notice, this list of conditions and the following disclaimer.
  10. //     * Redistributions in binary form must reproduce the above
  11. // copyright notice, this list of conditions and the following disclaimer
  12. // in the documentation and/or other materials provided with the
  13. // distribution.
  14. //     * Neither the name of Google Inc. nor the names of its
  15. // contributors may be used to endorse or promote products derived from
  16. // this software without specific prior written permission.
  17. //
  18. // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19. // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20. // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21. // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22. // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23. // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24. // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25. // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26. // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27. // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28. // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29. //
  30. // Authors: wan@google.com (Zhanyong Wan)
  31. //
  32. // Low-level types and utilities for porting Google Test to various
  33. // platforms.  They are subject to change without notice.  DO NOT USE
  34. // THEM IN USER CODE.
  35.  
  36. #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_
  37. #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_
  38.  
  39. // The user can define the following macros in the build script to
  40. // control Google Test's behavior.  If the user doesn't define a macro
  41. // in this list, Google Test will define it.
  42. //
  43. //   GTEST_HAS_CLONE          - Define it to 1/0 to indicate that clone(2)
  44. //                              is/isn't available.
  45. //   GTEST_HAS_EXCEPTIONS     - Define it to 1/0 to indicate that exceptions
  46. //                              are enabled.
  47. //   GTEST_HAS_GLOBAL_STRING  - Define it to 1/0 to indicate that ::string
  48. //                              is/isn't available (some systems define
  49. //                              ::string, which is different to std::string).
  50. //   GTEST_HAS_GLOBAL_WSTRING - Define it to 1/0 to indicate that ::string
  51. //                              is/isn't available (some systems define
  52. //                              ::wstring, which is different to std::wstring).
  53. //   GTEST_HAS_POSIX_RE       - Define it to 1/0 to indicate that POSIX regular
  54. //                              expressions are/aren't available.
  55. //   GTEST_HAS_PTHREAD        - Define it to 1/0 to indicate that <pthread.h>
  56. //                              is/isn't available.
  57. //   GTEST_HAS_RTTI           - Define it to 1/0 to indicate that RTTI is/isn't
  58. //                              enabled.
  59. //   GTEST_HAS_STD_WSTRING    - Define it to 1/0 to indicate that
  60. //                              std::wstring does/doesn't work (Google Test can
  61. //                              be used where std::wstring is unavailable).
  62. //   GTEST_HAS_TR1_TUPLE      - Define it to 1/0 to indicate tr1::tuple
  63. //                              is/isn't available.
  64. //   GTEST_HAS_SEH            - Define it to 1/0 to indicate whether the
  65. //                              compiler supports Microsoft's "Structured
  66. //                              Exception Handling".
  67. //   GTEST_HAS_STREAM_REDIRECTION
  68. //                            - Define it to 1/0 to indicate whether the
  69. //                              platform supports I/O stream redirection using
  70. //                              dup() and dup2().
  71. //   GTEST_USE_OWN_TR1_TUPLE  - Define it to 1/0 to indicate whether Google
  72. //                              Test's own tr1 tuple implementation should be
  73. //                              used.  Unused when the user sets
  74. //                              GTEST_HAS_TR1_TUPLE to 0.
  75. //   GTEST_LINKED_AS_SHARED_LIBRARY
  76. //                            - Define to 1 when compiling tests that use
  77. //                              Google Test as a shared library (known as
  78. //                              DLL on Windows).
  79. //   GTEST_CREATE_SHARED_LIBRARY
  80. //                            - Define to 1 when compiling Google Test itself
  81. //                              as a shared library.
  82.  
  83. // This header defines the following utilities:
  84. //
  85. // Macros indicating the current platform (defined to 1 if compiled on
  86. // the given platform; otherwise undefined):
  87. //   GTEST_OS_AIX      - IBM AIX
  88. //   GTEST_OS_CYGWIN   - Cygwin
  89. //   GTEST_OS_HPUX     - HP-UX
  90. //   GTEST_OS_LINUX    - Linux
  91. //     GTEST_OS_LINUX_ANDROID - Google Android
  92. //   GTEST_OS_MAC      - Mac OS X
  93. //   GTEST_OS_NACL     - Google Native Client (NaCl)
  94. //   GTEST_OS_SOLARIS  - Sun Solaris
  95. //   GTEST_OS_SYMBIAN  - Symbian
  96. //   GTEST_OS_WINDOWS  - Windows (Desktop, MinGW, or Mobile)
  97. //     GTEST_OS_WINDOWS_DESKTOP  - Windows Desktop
  98. //     GTEST_OS_WINDOWS_MINGW    - MinGW
  99. //     GTEST_OS_WINDOWS_MOBILE   - Windows Mobile
  100. //   GTEST_OS_ZOS      - z/OS
  101. //
  102. // Among the platforms, Cygwin, Linux, Max OS X, and Windows have the
  103. // most stable support.  Since core members of the Google Test project
  104. // don't have access to other platforms, support for them may be less
  105. // stable.  If you notice any problems on your platform, please notify
  106. // googletestframework@googlegroups.com (patches for fixing them are
  107. // even more welcome!).
  108. //
  109. // Note that it is possible that none of the GTEST_OS_* macros are defined.
  110. //
  111. // Macros indicating available Google Test features (defined to 1 if
  112. // the corresponding feature is supported; otherwise undefined):
  113. //   GTEST_HAS_COMBINE      - the Combine() function (for value-parameterized
  114. //                            tests)
  115. //   GTEST_HAS_DEATH_TEST   - death tests
  116. //   GTEST_HAS_PARAM_TEST   - value-parameterized tests
  117. //   GTEST_HAS_TYPED_TEST   - typed tests
  118. //   GTEST_HAS_TYPED_TEST_P - type-parameterized tests
  119. //   GTEST_USES_POSIX_RE    - enhanced POSIX regex is used. Do not confuse with
  120. //                            GTEST_HAS_POSIX_RE (see above) which users can
  121. //                            define themselves.
  122. //   GTEST_USES_SIMPLE_RE   - our own simple regex is used;
  123. //                            the above two are mutually exclusive.
  124. //   GTEST_CAN_COMPARE_NULL - accepts untyped NULL in EXPECT_EQ().
  125. //
  126. // Macros for basic C++ coding:
  127. //   GTEST_AMBIGUOUS_ELSE_BLOCKER_ - for disabling a gcc warning.
  128. //   GTEST_ATTRIBUTE_UNUSED_  - declares that a class' instances or a
  129. //                              variable don't have to be used.
  130. //   GTEST_DISALLOW_ASSIGN_   - disables operator=.
  131. //   GTEST_DISALLOW_COPY_AND_ASSIGN_ - disables copy ctor and operator=.
  132. //   GTEST_MUST_USE_RESULT_   - declares that a function's result must be used.
  133. //
  134. // Synchronization:
  135. //   Mutex, MutexLock, ThreadLocal, GetThreadCount()
  136. //                  - synchronization primitives.
  137. //   GTEST_IS_THREADSAFE - defined to 1 to indicate that the above
  138. //                         synchronization primitives have real implementations
  139. //                         and Google Test is thread-safe; or 0 otherwise.
  140. //
  141. // Template meta programming:
  142. //   is_pointer     - as in TR1; needed on Symbian and IBM XL C/C++ only.
  143. //   IteratorTraits - partial implementation of std::iterator_traits, which
  144. //                    is not available in libCstd when compiled with Sun C++.
  145. //
  146. // Smart pointers:
  147. //   scoped_ptr     - as in TR2.
  148. //
  149. // Regular expressions:
  150. //   RE             - a simple regular expression class using the POSIX
  151. //                    Extended Regular Expression syntax on UNIX-like
  152. //                    platforms, or a reduced regular exception syntax on
  153. //                    other platforms, including Windows.
  154. //
  155. // Logging:
  156. //   GTEST_LOG_()   - logs messages at the specified severity level.
  157. //   LogToStderr()  - directs all log messages to stderr.
  158. //   FlushInfoLog() - flushes informational log messages.
  159. //
  160. // Stdout and stderr capturing:
  161. //   CaptureStdout()     - starts capturing stdout.
  162. //   GetCapturedStdout() - stops capturing stdout and returns the captured
  163. //                         string.
  164. //   CaptureStderr()     - starts capturing stderr.
  165. //   GetCapturedStderr() - stops capturing stderr and returns the captured
  166. //                         string.
  167. //
  168. // Integer types:
  169. //   TypeWithSize   - maps an integer to a int type.
  170. //   Int32, UInt32, Int64, UInt64, TimeInMillis
  171. //                  - integers of known sizes.
  172. //   BiggestInt     - the biggest signed integer type.
  173. //
  174. // Command-line utilities:
  175. //   GTEST_FLAG()       - references a flag.
  176. //   GTEST_DECLARE_*()  - declares a flag.
  177. //   GTEST_DEFINE_*()   - defines a flag.
  178. //   GetArgvs()         - returns the command line as a vector of strings.
  179. //
  180. // Environment variable utilities:
  181. //   GetEnv()             - gets the value of an environment variable.
  182. //   BoolFromGTestEnv()   - parses a bool environment variable.
  183. //   Int32FromGTestEnv()  - parses an Int32 environment variable.
  184. //   StringFromGTestEnv() - parses a string environment variable.
  185.  
  186. #include <ctype.h>   // for isspace, etc
  187. #include <stddef.h>  // for ptrdiff_t
  188. #include <stdlib.h>
  189. #include <stdio.h>
  190. #include <string.h>
  191. #ifndef _WIN32_WCE
  192. # include <sys/types.h>
  193. # include <sys/stat.h>
  194. #endif  // !_WIN32_WCE
  195.  
  196. #include <iostream>  // NOLINT
  197. #include <sstream>  // NOLINT
  198. #include <string>  // NOLINT
  199.  
  200. #define GTEST_DEV_EMAIL_ "googletestframework@@googlegroups.com"
  201. #define GTEST_FLAG_PREFIX_ "gtest_"
  202. #define GTEST_FLAG_PREFIX_DASH_ "gtest-"
  203. #define GTEST_FLAG_PREFIX_UPPER_ "GTEST_"
  204. #define GTEST_NAME_ "Google Test"
  205. #define GTEST_PROJECT_URL_ "http://code.google.com/p/googletest/"
  206.  
  207. // Determines the version of gcc that is used to compile this.
  208. #ifdef __GNUC__
  209. // 40302 means version 4.3.2.
  210. # define GTEST_GCC_VER_ \
  211.     (__GNUC__*10000 + __GNUC_MINOR__*100 + __GNUC_PATCHLEVEL__)
  212. #endif  // __GNUC__
  213.  
  214. // Determines the platform on which Google Test is compiled.
  215. #ifdef __CYGWIN__
  216. # define GTEST_OS_CYGWIN 1
  217. #elif defined __SYMBIAN32__
  218. # define GTEST_OS_SYMBIAN 1
  219. #elif defined _WIN32
  220. # define GTEST_OS_WINDOWS 1
  221. # ifdef _WIN32_WCE
  222. #  define GTEST_OS_WINDOWS_MOBILE 1
  223. # elif defined(__MINGW__) || defined(__MINGW32__)
  224. #  define GTEST_OS_WINDOWS_MINGW 1
  225. # else
  226. #  define GTEST_OS_WINDOWS_DESKTOP 1
  227. # endif  // _WIN32_WCE
  228. #elif defined __APPLE__
  229. # define GTEST_OS_MAC 1
  230. #elif defined __linux__
  231. # define GTEST_OS_LINUX 1
  232. # ifdef ANDROID
  233. #  define GTEST_OS_LINUX_ANDROID 1
  234. # endif  // ANDROID
  235. #elif defined __MVS__
  236. # define GTEST_OS_ZOS 1
  237. #elif defined(__sun) && defined(__SVR4)
  238. # define GTEST_OS_SOLARIS 1
  239. #elif defined(_AIX)
  240. # define GTEST_OS_AIX 1
  241. #elif defined(__hpux)
  242. # define GTEST_OS_HPUX 1
  243. #elif defined __native_client__
  244. # define GTEST_OS_NACL 1
  245. #endif  // __CYGWIN__
  246.  
  247. // Brings in definitions for functions used in the testing::internal::posix
  248. // namespace (read, write, close, chdir, isatty, stat). We do not currently
  249. // use them on Windows Mobile.
  250. #if !GTEST_OS_WINDOWS
  251. // This assumes that non-Windows OSes provide unistd.h. For OSes where this
  252. // is not the case, we need to include headers that provide the functions
  253. // mentioned above.
  254. # include <unistd.h>
  255. # if !GTEST_OS_NACL
  256. // TODO(vladl@google.com): Remove this condition when Native Client SDK adds
  257. // strings.h (tracked in
  258. // http://code.google.com/p/nativeclient/issues/detail?id=1175).
  259. #  include <strings.h>  // Native Client doesn't provide strings.h.
  260. # endif
  261. #elif !GTEST_OS_WINDOWS_MOBILE
  262. # include <direct.h>
  263. # include <io.h>
  264. #endif
  265.  
  266. // Defines this to true iff Google Test can use POSIX regular expressions.
  267. #ifndef GTEST_HAS_POSIX_RE
  268. # define GTEST_HAS_POSIX_RE (!GTEST_OS_WINDOWS)
  269. #endif
  270.  
  271. #if GTEST_HAS_POSIX_RE
  272.  
  273. // On some platforms, <regex.h> needs someone to define size_t, and
  274. // won't compile otherwise.  We can #include it here as we already
  275. // included <stdlib.h>, which is guaranteed to define size_t through
  276. // <stddef.h>.
  277. # include <regex.h>  // NOLINT
  278.  
  279. # define GTEST_USES_POSIX_RE 1
  280.  
  281. #elif GTEST_OS_WINDOWS
  282.  
  283. // <regex.h> is not available on Windows.  Use our own simple regex
  284. // implementation instead.
  285. # define GTEST_USES_SIMPLE_RE 1
  286.  
  287. #else
  288.  
  289. // <regex.h> may not be available on this platform.  Use our own
  290. // simple regex implementation instead.
  291. # define GTEST_USES_SIMPLE_RE 1
  292.  
  293. #endif  // GTEST_HAS_POSIX_RE
  294.  
  295. #ifndef GTEST_HAS_EXCEPTIONS
  296. // The user didn't tell us whether exceptions are enabled, so we need
  297. // to figure it out.
  298. # if defined(_MSC_VER) || defined(__BORLANDC__)
  299. // MSVC's and C++Builder's implementations of the STL use the _HAS_EXCEPTIONS
  300. // macro to enable exceptions, so we'll do the same.
  301. // Assumes that exceptions are enabled by default.
  302. #  ifndef _HAS_EXCEPTIONS
  303. #   define _HAS_EXCEPTIONS 1
  304. #  endif  // _HAS_EXCEPTIONS
  305. #  define GTEST_HAS_EXCEPTIONS _HAS_EXCEPTIONS
  306. # elif defined(__GNUC__) && __EXCEPTIONS
  307. // gcc defines __EXCEPTIONS to 1 iff exceptions are enabled.
  308. #  define GTEST_HAS_EXCEPTIONS 1
  309. # elif defined(__SUNPRO_CC)
  310. // Sun Pro CC supports exceptions.  However, there is no compile-time way of
  311. // detecting whether they are enabled or not.  Therefore, we assume that
  312. // they are enabled unless the user tells us otherwise.
  313. #  define GTEST_HAS_EXCEPTIONS 1
  314. # elif defined(__IBMCPP__) && __EXCEPTIONS
  315. // xlC defines __EXCEPTIONS to 1 iff exceptions are enabled.
  316. #  define GTEST_HAS_EXCEPTIONS 1
  317. # elif defined(__HP_aCC)
  318. // Exception handling is in effect by default in HP aCC compiler. It has to
  319. // be turned of by +noeh compiler option if desired.
  320. #  define GTEST_HAS_EXCEPTIONS 1
  321. # else
  322. // For other compilers, we assume exceptions are disabled to be
  323. // conservative.
  324. #  define GTEST_HAS_EXCEPTIONS 0
  325. # endif  // defined(_MSC_VER) || defined(__BORLANDC__)
  326. #endif  // GTEST_HAS_EXCEPTIONS
  327.  
  328. #if !defined(GTEST_HAS_STD_STRING)
  329. // Even though we don't use this macro any longer, we keep it in case
  330. // some clients still depend on it.
  331. # define GTEST_HAS_STD_STRING 1
  332. #elif !GTEST_HAS_STD_STRING
  333. // The user told us that ::std::string isn't available.
  334. # error "Google Test cannot be used where ::std::string isn't available."
  335. #endif  // !defined(GTEST_HAS_STD_STRING)
  336.  
  337. #ifndef GTEST_HAS_GLOBAL_STRING
  338. // The user didn't tell us whether ::string is available, so we need
  339. // to figure it out.
  340.  
  341. # define GTEST_HAS_GLOBAL_STRING 0
  342.  
  343. #endif  // GTEST_HAS_GLOBAL_STRING
  344.  
  345. #ifndef GTEST_HAS_STD_WSTRING
  346. // The user didn't tell us whether ::std::wstring is available, so we need
  347. // to figure it out.
  348. // TODO(wan@google.com): uses autoconf to detect whether ::std::wstring
  349. //   is available.
  350.  
  351. // Cygwin 1.7 and below doesn't support ::std::wstring.
  352. // Solaris' libc++ doesn't support it either.  Android has
  353. // no support for it at least as recent as Froyo (2.2).
  354. # define GTEST_HAS_STD_WSTRING \
  355.     (!(GTEST_OS_LINUX_ANDROID || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS))
  356.  
  357. #endif  // GTEST_HAS_STD_WSTRING
  358.  
  359. #ifndef GTEST_HAS_GLOBAL_WSTRING
  360. // The user didn't tell us whether ::wstring is available, so we need
  361. // to figure it out.
  362. # define GTEST_HAS_GLOBAL_WSTRING \
  363.     (GTEST_HAS_STD_WSTRING && GTEST_HAS_GLOBAL_STRING)
  364. #endif  // GTEST_HAS_GLOBAL_WSTRING
  365.  
  366. // Determines whether RTTI is available.
  367. #ifndef GTEST_HAS_RTTI
  368. // The user didn't tell us whether RTTI is enabled, so we need to
  369. // figure it out.
  370.  
  371. # ifdef _MSC_VER
  372.  
  373. #  ifdef _CPPRTTI  // MSVC defines this macro iff RTTI is enabled.
  374. #   define GTEST_HAS_RTTI 1
  375. #  else
  376. #   define GTEST_HAS_RTTI 0
  377. #  endif
  378.  
  379. // Starting with version 4.3.2, gcc defines __GXX_RTTI iff RTTI is enabled.
  380. # elif defined(__GNUC__) && (GTEST_GCC_VER_ >= 40302)
  381.  
  382. #  ifdef __GXX_RTTI
  383. #   define GTEST_HAS_RTTI 1
  384. #  else
  385. #   define GTEST_HAS_RTTI 0
  386. #  endif  // __GXX_RTTI
  387.  
  388. // Starting with version 9.0 IBM Visual Age defines __RTTI_ALL__ to 1 if
  389. // both the typeid and dynamic_cast features are present.
  390. # elif defined(__IBMCPP__) && (__IBMCPP__ >= 900)
  391.  
  392. #  ifdef __RTTI_ALL__
  393. #   define GTEST_HAS_RTTI 1
  394. #  else
  395. #   define GTEST_HAS_RTTI 0
  396. #  endif
  397.  
  398. # else
  399.  
  400. // For all other compilers, we assume RTTI is enabled.
  401. #  define GTEST_HAS_RTTI 1
  402.  
  403. # endif  // _MSC_VER
  404.  
  405. #endif  // GTEST_HAS_RTTI
  406.  
  407. // It's this header's responsibility to #include <typeinfo> when RTTI
  408. // is enabled.
  409. #if GTEST_HAS_RTTI
  410. # include <typeinfo>
  411. #endif
  412.  
  413. // Determines whether Google Test can use the pthreads library.
  414. #ifndef GTEST_HAS_PTHREAD
  415. // The user didn't tell us explicitly, so we assume pthreads support is
  416. // available on Linux and Mac.
  417. //
  418. // To disable threading support in Google Test, add -DGTEST_HAS_PTHREAD=0
  419. // to your compiler flags.
  420. # define GTEST_HAS_PTHREAD (GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_HPUX)
  421. #endif  // GTEST_HAS_PTHREAD
  422.  
  423. #if GTEST_HAS_PTHREAD
  424. // gtest-port.h guarantees to #include <pthread.h> when GTEST_HAS_PTHREAD is
  425. // true.
  426. # include <pthread.h>  // NOLINT
  427.  
  428. // For timespec and nanosleep, used below.
  429. # include <time.h>  // NOLINT
  430. #endif
  431.  
  432. // Determines whether Google Test can use tr1/tuple.  You can define
  433. // this macro to 0 to prevent Google Test from using tuple (any
  434. // feature depending on tuple with be disabled in this mode).
  435. #ifndef GTEST_HAS_TR1_TUPLE
  436. // The user didn't tell us not to do it, so we assume it's OK.
  437. # define GTEST_HAS_TR1_TUPLE 1
  438. #endif  // GTEST_HAS_TR1_TUPLE
  439.  
  440. // Determines whether Google Test's own tr1 tuple implementation
  441. // should be used.
  442. #ifndef GTEST_USE_OWN_TR1_TUPLE
  443. // The user didn't tell us, so we need to figure it out.
  444.  
  445. // We use our own TR1 tuple if we aren't sure the user has an
  446. // implementation of it already.  At this time, GCC 4.0.0+ and MSVC
  447. // 2010 are the only mainstream compilers that come with a TR1 tuple
  448. // implementation.  NVIDIA's CUDA NVCC compiler pretends to be GCC by
  449. // defining __GNUC__ and friends, but cannot compile GCC's tuple
  450. // implementation.  MSVC 2008 (9.0) provides TR1 tuple in a 323 MB
  451. // Feature Pack download, which we cannot assume the user has.
  452. # if (defined(__GNUC__) && !defined(__CUDACC__) && (GTEST_GCC_VER_ >= 40000)) \
  453.     || _MSC_VER >= 1600
  454. #  define GTEST_USE_OWN_TR1_TUPLE 0
  455. # else
  456. #  define GTEST_USE_OWN_TR1_TUPLE 1
  457. # endif
  458.  
  459. #endif  // GTEST_USE_OWN_TR1_TUPLE
  460.  
  461. // To avoid conditional compilation everywhere, we make it
  462. // gtest-port.h's responsibility to #include the header implementing
  463. // tr1/tuple.
  464. #if GTEST_HAS_TR1_TUPLE
  465.  
  466. # if GTEST_USE_OWN_TR1_TUPLE
  467. #  include "gtest/internal/gtest-tuple.h"
  468. # elif GTEST_OS_SYMBIAN
  469.  
  470. // On Symbian, BOOST_HAS_TR1_TUPLE causes Boost's TR1 tuple library to
  471. // use STLport's tuple implementation, which unfortunately doesn't
  472. // work as the copy of STLport distributed with Symbian is incomplete.
  473. // By making sure BOOST_HAS_TR1_TUPLE is undefined, we force Boost to
  474. // use its own tuple implementation.
  475. #  ifdef BOOST_HAS_TR1_TUPLE
  476. #   undef BOOST_HAS_TR1_TUPLE
  477. #  endif  // BOOST_HAS_TR1_TUPLE
  478.  
  479. // This prevents <boost/tr1/detail/config.hpp>, which defines
  480. // BOOST_HAS_TR1_TUPLE, from being #included by Boost's <tuple>.
  481. #  define BOOST_TR1_DETAIL_CONFIG_HPP_INCLUDED
  482. #  include <tuple>
  483.  
  484. # elif defined(__GNUC__) && (GTEST_GCC_VER_ >= 40000)
  485. // GCC 4.0+ implements tr1/tuple in the <tr1/tuple> header.  This does
  486. // not conform to the TR1 spec, which requires the header to be <tuple>.
  487.  
  488. #  if !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302
  489. // Until version 4.3.2, gcc has a bug that causes <tr1/functional>,
  490. // which is #included by <tr1/tuple>, to not compile when RTTI is
  491. // disabled.  _TR1_FUNCTIONAL is the header guard for
  492. // <tr1/functional>.  Hence the following #define is a hack to prevent
  493. // <tr1/functional> from being included.
  494. #   define _TR1_FUNCTIONAL 1
  495. #   include <tr1/tuple>
  496. #   undef _TR1_FUNCTIONAL  // Allows the user to #include
  497.                         // <tr1/functional> if he chooses to.
  498. #  else
  499. #   include <tr1/tuple>  // NOLINT
  500. #  endif  // !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302
  501.  
  502. # else
  503. // If the compiler is not GCC 4.0+, we assume the user is using a
  504. // spec-conforming TR1 implementation.
  505. #  include <tuple>  // NOLINT
  506. # endif  // GTEST_USE_OWN_TR1_TUPLE
  507.  
  508. #endif  // GTEST_HAS_TR1_TUPLE
  509.  
  510. // Determines whether clone(2) is supported.
  511. // Usually it will only be available on Linux, excluding
  512. // Linux on the Itanium architecture.
  513. // Also see http://linux.die.net/man/2/clone.
  514. #ifndef GTEST_HAS_CLONE
  515. // The user didn't tell us, so we need to figure it out.
  516.  
  517. # if GTEST_OS_LINUX && !defined(__ia64__)
  518. #  define GTEST_HAS_CLONE 1
  519. # else
  520. #  define GTEST_HAS_CLONE 0
  521. # endif  // GTEST_OS_LINUX && !defined(__ia64__)
  522.  
  523. #endif  // GTEST_HAS_CLONE
  524.  
  525. // Determines whether to support stream redirection. This is used to test
  526. // output correctness and to implement death tests.
  527. #ifndef GTEST_HAS_STREAM_REDIRECTION
  528. // By default, we assume that stream redirection is supported on all
  529. // platforms except known mobile ones.
  530. # if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_SYMBIAN
  531. #  define GTEST_HAS_STREAM_REDIRECTION 0
  532. # else
  533. #  define GTEST_HAS_STREAM_REDIRECTION 1
  534. # endif  // !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_SYMBIAN
  535. #endif  // GTEST_HAS_STREAM_REDIRECTION
  536.  
  537. // Determines whether to support death tests.
  538. // Google Test does not support death tests for VC 7.1 and earlier as
  539. // abort() in a VC 7.1 application compiled as GUI in debug config
  540. // pops up a dialog window that cannot be suppressed programmatically.
  541. #if (GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS || \
  542.      (GTEST_OS_WINDOWS_DESKTOP && _MSC_VER >= 1400) || \
  543.      GTEST_OS_WINDOWS_MINGW || GTEST_OS_AIX || GTEST_OS_HPUX)
  544. # define GTEST_HAS_DEATH_TEST 1
  545. # include <vector>  // NOLINT
  546. #endif
  547.  
  548. // We don't support MSVC 7.1 with exceptions disabled now.  Therefore
  549. // all the compilers we care about are adequate for supporting
  550. // value-parameterized tests.
  551. #define GTEST_HAS_PARAM_TEST 1
  552.  
  553. // Determines whether to support type-driven tests.
  554.  
  555. // Typed tests need <typeinfo> and variadic macros, which GCC, VC++ 8.0,
  556. // Sun Pro CC, IBM Visual Age, and HP aCC support.
  557. #if defined(__GNUC__) || (_MSC_VER >= 1400) || defined(__SUNPRO_CC) || \
  558.     defined(__IBMCPP__) || defined(__HP_aCC)
  559. # define GTEST_HAS_TYPED_TEST 1
  560. # define GTEST_HAS_TYPED_TEST_P 1
  561. #endif
  562.  
  563. // Determines whether to support Combine(). This only makes sense when
  564. // value-parameterized tests are enabled.  The implementation doesn't
  565. // work on Sun Studio since it doesn't understand templated conversion
  566. // operators.
  567. #if GTEST_HAS_PARAM_TEST && GTEST_HAS_TR1_TUPLE && !defined(__SUNPRO_CC)
  568. # define GTEST_HAS_COMBINE 1
  569. #endif
  570.  
  571. // Determines whether the system compiler uses UTF-16 for encoding wide strings.
  572. #define GTEST_WIDE_STRING_USES_UTF16_ \
  573.     (GTEST_OS_WINDOWS || GTEST_OS_CYGWIN || GTEST_OS_SYMBIAN || GTEST_OS_AIX)
  574.  
  575. // Determines whether test results can be streamed to a socket.
  576. #if GTEST_OS_LINUX
  577. # define GTEST_CAN_STREAM_RESULTS_ 1
  578. #endif
  579.  
  580. // Defines some utility macros.
  581.  
  582. // The GNU compiler emits a warning if nested "if" statements are followed by
  583. // an "else" statement and braces are not used to explicitly disambiguate the
  584. // "else" binding.  This leads to problems with code like:
  585. //
  586. //   if (gate)
  587. //     ASSERT_*(condition) << "Some message";
  588. //
  589. // The "switch (0) case 0:" idiom is used to suppress this.
  590. #ifdef __INTEL_COMPILER
  591. # define GTEST_AMBIGUOUS_ELSE_BLOCKER_
  592. #else
  593. # define GTEST_AMBIGUOUS_ELSE_BLOCKER_ switch (0) case 0: default:  // NOLINT
  594. #endif
  595.  
  596. // Use this annotation at the end of a struct/class definition to
  597. // prevent the compiler from optimizing away instances that are never
  598. // used.  This is useful when all interesting logic happens inside the
  599. // c'tor and / or d'tor.  Example:
  600. //
  601. //   struct Foo {
  602. //     Foo() { ... }
  603. //   } GTEST_ATTRIBUTE_UNUSED_;
  604. //
  605. // Also use it after a variable or parameter declaration to tell the
  606. // compiler the variable/parameter does not have to be used.
  607. #if defined(__GNUC__) && !defined(COMPILER_ICC)
  608. # define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused))
  609. #else
  610. # define GTEST_ATTRIBUTE_UNUSED_
  611. #endif
  612.  
  613. // A macro to disallow operator=
  614. // This should be used in the private: declarations for a class.
  615. #define GTEST_DISALLOW_ASSIGN_(type)\
  616.   void operator=(type const &)
  617.  
  618. // A macro to disallow copy constructor and operator=
  619. // This should be used in the private: declarations for a class.
  620. #define GTEST_DISALLOW_COPY_AND_ASSIGN_(type)\
  621.   type(type const &);\
  622.   GTEST_DISALLOW_ASSIGN_(type)
  623.  
  624. // Tell the compiler to warn about unused return values for functions declared
  625. // with this macro.  The macro should be used on function declarations
  626. // following the argument list:
  627. //
  628. //   Sprocket* AllocateSprocket() GTEST_MUST_USE_RESULT_;
  629. #if defined(__GNUC__) && (GTEST_GCC_VER_ >= 30400) && !defined(COMPILER_ICC)
  630. # define GTEST_MUST_USE_RESULT_ __attribute__ ((warn_unused_result))
  631. #else
  632. # define GTEST_MUST_USE_RESULT_
  633. #endif  // __GNUC__ && (GTEST_GCC_VER_ >= 30400) && !COMPILER_ICC
  634.  
  635. // Determine whether the compiler supports Microsoft's Structured Exception
  636. // Handling.  This is supported by several Windows compilers but generally
  637. // does not exist on any other system.
  638. #ifndef GTEST_HAS_SEH
  639. // The user didn't tell us, so we need to figure it out.
  640.  
  641. # if defined(_MSC_VER) || defined(__BORLANDC__)
  642. // These two compilers are known to support SEH.
  643. #  define GTEST_HAS_SEH 1
  644. # else
  645. // Assume no SEH.
  646. #  define GTEST_HAS_SEH 0
  647. # endif
  648.  
  649. #endif  // GTEST_HAS_SEH
  650.  
  651. #ifdef _MSC_VER
  652.  
  653. # if GTEST_LINKED_AS_SHARED_LIBRARY
  654. #  define GTEST_API_ __declspec(dllimport)
  655. # elif GTEST_CREATE_SHARED_LIBRARY
  656. #  define GTEST_API_ __declspec(dllexport)
  657. # endif
  658.  
  659. #endif  // _MSC_VER
  660.  
  661. #ifndef GTEST_API_
  662. # define GTEST_API_
  663. #endif
  664.  
  665. #ifdef __GNUC__
  666. // Ask the compiler to never inline a given function.
  667. # define GTEST_NO_INLINE_ __attribute__((noinline))
  668. #else
  669. # define GTEST_NO_INLINE_
  670. #endif
  671.  
  672. namespace testing {
  673.  
  674. class Message;
  675.  
  676. namespace internal {
  677.  
  678. class String;
  679.  
  680. // The GTEST_COMPILE_ASSERT_ macro can be used to verify that a compile time
  681. // expression is true. For example, you could use it to verify the
  682. // size of a static array:
  683. //
  684. //   GTEST_COMPILE_ASSERT_(ARRAYSIZE(content_type_names) == CONTENT_NUM_TYPES,
  685. //                         content_type_names_incorrect_size);
  686. //
  687. // or to make sure a struct is smaller than a certain size:
  688. //
  689. //   GTEST_COMPILE_ASSERT_(sizeof(foo) < 128, foo_too_large);
  690. //
  691. // The second argument to the macro is the name of the variable. If
  692. // the expression is false, most compilers will issue a warning/error
  693. // containing the name of the variable.
  694.  
  695. template <bool>
  696. struct CompileAssert {
  697. };
  698.  
  699. #define GTEST_COMPILE_ASSERT_(expr, msg) \
  700.   typedef ::testing::internal::CompileAssert<(bool(expr))> \
  701.       msg[bool(expr) ? 1 : -1]
  702.  
  703. // Implementation details of GTEST_COMPILE_ASSERT_:
  704. //
  705. // - GTEST_COMPILE_ASSERT_ works by defining an array type that has -1
  706. //   elements (and thus is invalid) when the expression is false.
  707. //
  708. // - The simpler definition
  709. //
  710. //    #define GTEST_COMPILE_ASSERT_(expr, msg) typedef char msg[(expr) ? 1 : -1]
  711. //
  712. //   does not work, as gcc supports variable-length arrays whose sizes
  713. //   are determined at run-time (this is gcc's extension and not part
  714. //   of the C++ standard).  As a result, gcc fails to reject the
  715. //   following code with the simple definition:
  716. //
  717. //     int foo;
  718. //     GTEST_COMPILE_ASSERT_(foo, msg); // not supposed to compile as foo is
  719. //                                      // not a compile-time constant.
  720. //
  721. // - By using the type CompileAssert<(bool(expr))>, we ensures that
  722. //   expr is a compile-time constant.  (Template arguments must be
  723. //   determined at compile-time.)
  724. //
  725. // - The outter parentheses in CompileAssert<(bool(expr))> are necessary
  726. //   to work around a bug in gcc 3.4.4 and 4.0.1.  If we had written
  727. //
  728. //     CompileAssert<bool(expr)>
  729. //
  730. //   instead, these compilers will refuse to compile
  731. //
  732. //     GTEST_COMPILE_ASSERT_(5 > 0, some_message);
  733. //
  734. //   (They seem to think the ">" in "5 > 0" marks the end of the
  735. //   template argument list.)
  736. //
  737. // - The array size is (bool(expr) ? 1 : -1), instead of simply
  738. //
  739. //     ((expr) ? 1 : -1).
  740. //
  741. //   This is to avoid running into a bug in MS VC 7.1, which
  742. //   causes ((0.0) ? 1 : -1) to incorrectly evaluate to 1.
  743.  
  744. // StaticAssertTypeEqHelper is used by StaticAssertTypeEq defined in gtest.h.
  745. //
  746. // This template is declared, but intentionally undefined.
  747. template <typename T1, typename T2>
  748. struct StaticAssertTypeEqHelper;
  749.  
  750. template <typename T>
  751. struct StaticAssertTypeEqHelper<T, T> {};
  752.  
  753. #if GTEST_HAS_GLOBAL_STRING
  754. typedef ::string string;
  755. #else
  756. typedef ::std::string string;
  757. #endif  // GTEST_HAS_GLOBAL_STRING
  758.  
  759. #if GTEST_HAS_GLOBAL_WSTRING
  760. typedef ::wstring wstring;
  761. #elif GTEST_HAS_STD_WSTRING
  762. typedef ::std::wstring wstring;
  763. #endif  // GTEST_HAS_GLOBAL_WSTRING
  764.  
  765. // A helper for suppressing warnings on constant condition.  It just
  766. // returns 'condition'.
  767. GTEST_API_ bool IsTrue(bool condition);
  768.  
  769. // Defines scoped_ptr.
  770.  
  771. // This implementation of scoped_ptr is PARTIAL - it only contains
  772. // enough stuff to satisfy Google Test's need.
  773. template <typename T>
  774. class scoped_ptr {
  775.  public:
  776.   typedef T element_type;
  777.  
  778.   explicit scoped_ptr(T* p = NULL) : ptr_(p) {}
  779.   ~scoped_ptr() { reset(); }
  780.  
  781.   T& operator*() const { return *ptr_; }
  782.   T* operator->() const { return ptr_; }
  783.   T* get() const { return ptr_; }
  784.  
  785.   T* release() {
  786.     T* const ptr = ptr_;
  787.     ptr_ = NULL;
  788.     return ptr;
  789.   }
  790.  
  791.   void reset(T* p = NULL) {
  792.     if (p != ptr_) {
  793.       if (IsTrue(sizeof(T) > 0)) {  // Makes sure T is a complete type.
  794.         delete ptr_;
  795.       }
  796.       ptr_ = p;
  797.     }
  798.   }
  799.  private:
  800.   T* ptr_;
  801.  
  802.   GTEST_DISALLOW_COPY_AND_ASSIGN_(scoped_ptr);
  803. };
  804.  
  805. // Defines RE.
  806.  
  807. // A simple C++ wrapper for <regex.h>.  It uses the POSIX Extended
  808. // Regular Expression syntax.
  809. class GTEST_API_ RE {
  810.  public:
  811.   // A copy constructor is required by the Standard to initialize object
  812.   // references from r-values.
  813.   RE(const RE& other) { Init(other.pattern()); }
  814.  
  815.   // Constructs an RE from a string.
  816.   RE(const ::std::string& regex) { Init(regex.c_str()); }  // NOLINT
  817.  
  818. #if GTEST_HAS_GLOBAL_STRING
  819.  
  820.   RE(const ::string& regex) { Init(regex.c_str()); }  // NOLINT
  821.  
  822. #endif  // GTEST_HAS_GLOBAL_STRING
  823.  
  824.   RE(const char* regex) { Init(regex); }  // NOLINT
  825.   ~RE();
  826.  
  827.   // Returns the string representation of the regex.
  828.   const char* pattern() const { return pattern_; }
  829.  
  830.   // FullMatch(str, re) returns true iff regular expression re matches
  831.   // the entire str.
  832.   // PartialMatch(str, re) returns true iff regular expression re
  833.   // matches a substring of str (including str itself).
  834.   //
  835.   // TODO(wan@google.com): make FullMatch() and PartialMatch() work
  836.   // when str contains NUL characters.
  837.   static bool FullMatch(const ::std::string& str, const RE& re) {
  838.     return FullMatch(str.c_str(), re);
  839.   }
  840.   static bool PartialMatch(const ::std::string& str, const RE& re) {
  841.     return PartialMatch(str.c_str(), re);
  842.   }
  843.  
  844. #if GTEST_HAS_GLOBAL_STRING
  845.  
  846.   static bool FullMatch(const ::string& str, const RE& re) {
  847.     return FullMatch(str.c_str(), re);
  848.   }
  849.   static bool PartialMatch(const ::string& str, const RE& re) {
  850.     return PartialMatch(str.c_str(), re);
  851.   }
  852.  
  853. #endif  // GTEST_HAS_GLOBAL_STRING
  854.  
  855.   static bool FullMatch(const char* str, const RE& re);
  856.   static bool PartialMatch(const char* str, const RE& re);
  857.  
  858.  private:
  859.   void Init(const char* regex);
  860.  
  861.   // We use a const char* instead of a string, as Google Test may be used
  862.   // where string is not available.  We also do not use Google Test's own
  863.   // String type here, in order to simplify dependencies between the
  864.   // files.
  865.   const char* pattern_;
  866.   bool is_valid_;
  867.  
  868. #if GTEST_USES_POSIX_RE
  869.  
  870.   regex_t full_regex_;     // For FullMatch().
  871.   regex_t partial_regex_;  // For PartialMatch().
  872.  
  873. #else  // GTEST_USES_SIMPLE_RE
  874.  
  875.   const char* full_pattern_;  // For FullMatch();
  876.  
  877. #endif
  878.  
  879.   GTEST_DISALLOW_ASSIGN_(RE);
  880. };
  881.  
  882. // Formats a source file path and a line number as they would appear
  883. // in an error message from the compiler used to compile this code.
  884. GTEST_API_ ::std::string FormatFileLocation(const char* file, int line);
  885.  
  886. // Formats a file location for compiler-independent XML output.
  887. // Although this function is not platform dependent, we put it next to
  888. // FormatFileLocation in order to contrast the two functions.
  889. GTEST_API_ ::std::string FormatCompilerIndependentFileLocation(const char* file,
  890.                                                                int line);
  891.  
  892. // Defines logging utilities:
  893. //   GTEST_LOG_(severity) - logs messages at the specified severity level. The
  894. //                          message itself is streamed into the macro.
  895. //   LogToStderr()  - directs all log messages to stderr.
  896. //   FlushInfoLog() - flushes informational log messages.
  897.  
  898. enum GTestLogSeverity {
  899.   GTEST_INFO,
  900.   GTEST_WARNING,
  901.   GTEST_ERROR,
  902.   GTEST_FATAL
  903. };
  904.  
  905. // Formats log entry severity, provides a stream object for streaming the
  906. // log message, and terminates the message with a newline when going out of
  907. // scope.
  908. class GTEST_API_ GTestLog {
  909.  public:
  910.   GTestLog(GTestLogSeverity severity, const char* file, int line);
  911.  
  912.   // Flushes the buffers and, if severity is GTEST_FATAL, aborts the program.
  913.   ~GTestLog();
  914.  
  915.   ::std::ostream& GetStream() { return ::std::cerr; }
  916.  
  917.  private:
  918.   const GTestLogSeverity severity_;
  919.  
  920.   GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestLog);
  921. };
  922.  
  923. #define GTEST_LOG_(severity) \
  924.     ::testing::internal::GTestLog(::testing::internal::GTEST_##severity, \
  925.                                   __FILE__, __LINE__).GetStream()
  926.  
  927. inline void LogToStderr() {}
  928. inline void FlushInfoLog() { fflush(NULL); }
  929.  
  930. // INTERNAL IMPLEMENTATION - DO NOT USE.
  931. //
  932. // GTEST_CHECK_ is an all-mode assert. It aborts the program if the condition
  933. // is not satisfied.
  934. //  Synopsys:
  935. //    GTEST_CHECK_(boolean_condition);
  936. //     or
  937. //    GTEST_CHECK_(boolean_condition) << "Additional message";
  938. //
  939. //    This checks the condition and if the condition is not satisfied
  940. //    it prints message about the condition violation, including the
  941. //    condition itself, plus additional message streamed into it, if any,
  942. //    and then it aborts the program. It aborts the program irrespective of
  943. //    whether it is built in the debug mode or not.
  944. #define GTEST_CHECK_(condition) \
  945.     GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
  946.     if (::testing::internal::IsTrue(condition)) \
  947.       ; \
  948.     else \
  949.       GTEST_LOG_(FATAL) << "Condition " #condition " failed. "
  950.  
  951. // An all-mode assert to verify that the given POSIX-style function
  952. // call returns 0 (indicating success).  Known limitation: this
  953. // doesn't expand to a balanced 'if' statement, so enclose the macro
  954. // in {} if you need to use it as the only statement in an 'if'
  955. // branch.
  956. #define GTEST_CHECK_POSIX_SUCCESS_(posix_call) \
  957.   if (const int gtest_error = (posix_call)) \
  958.     GTEST_LOG_(FATAL) << #posix_call << "failed with error " \
  959.                       << gtest_error
  960.  
  961. // INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
  962. //
  963. // Use ImplicitCast_ as a safe version of static_cast for upcasting in
  964. // the type hierarchy (e.g. casting a Foo* to a SuperclassOfFoo* or a
  965. // const Foo*).  When you use ImplicitCast_, the compiler checks that
  966. // the cast is safe.  Such explicit ImplicitCast_s are necessary in
  967. // surprisingly many situations where C++ demands an exact type match
  968. // instead of an argument type convertable to a target type.
  969. //
  970. // The syntax for using ImplicitCast_ is the same as for static_cast:
  971. //
  972. //   ImplicitCast_<ToType>(expr)
  973. //
  974. // ImplicitCast_ would have been part of the C++ standard library,
  975. // but the proposal was submitted too late.  It will probably make
  976. // its way into the language in the future.
  977. //
  978. // This relatively ugly name is intentional. It prevents clashes with
  979. // similar functions users may have (e.g., implicit_cast). The internal
  980. // namespace alone is not enough because the function can be found by ADL.
  981. template<typename To>
  982. inline To ImplicitCast_(To x) { return x; }
  983.  
  984. // When you upcast (that is, cast a pointer from type Foo to type
  985. // SuperclassOfFoo), it's fine to use ImplicitCast_<>, since upcasts
  986. // always succeed.  When you downcast (that is, cast a pointer from
  987. // type Foo to type SubclassOfFoo), static_cast<> isn't safe, because
  988. // how do you know the pointer is really of type SubclassOfFoo?  It
  989. // could be a bare Foo, or of type DifferentSubclassOfFoo.  Thus,
  990. // when you downcast, you should use this macro.  In debug mode, we
  991. // use dynamic_cast<> to double-check the downcast is legal (we die
  992. // if it's not).  In normal mode, we do the efficient static_cast<>
  993. // instead.  Thus, it's important to test in debug mode to make sure
  994. // the cast is legal!
  995. //    This is the only place in the code we should use dynamic_cast<>.
  996. // In particular, you SHOULDN'T be using dynamic_cast<> in order to
  997. // do RTTI (eg code like this:
  998. //    if (dynamic_cast<Subclass1>(foo)) HandleASubclass1Object(foo);
  999. //    if (dynamic_cast<Subclass2>(foo)) HandleASubclass2Object(foo);
  1000. // You should design the code some other way not to need this.
  1001. //
  1002. // This relatively ugly name is intentional. It prevents clashes with
  1003. // similar functions users may have (e.g., down_cast). The internal
  1004. // namespace alone is not enough because the function can be found by ADL.
  1005. template<typename To, typename From>  // use like this: DownCast_<T*>(foo);
  1006. inline To DownCast_(From* f) {  // so we only accept pointers
  1007.   // Ensures that To is a sub-type of From *.  This test is here only
  1008.   // for compile-time type checking, and has no overhead in an
  1009.   // optimized build at run-time, as it will be optimized away
  1010.   // completely.
  1011.   if (false) {
  1012.     const To to = NULL;
  1013.     ::testing::internal::ImplicitCast_<From*>(to);
  1014.   }
  1015.  
  1016. #if GTEST_HAS_RTTI
  1017.   // RTTI: debug mode only!
  1018.   GTEST_CHECK_(f == NULL || dynamic_cast<To>(f) != NULL);
  1019. #endif
  1020.   return static_cast<To>(f);
  1021. }
  1022.  
  1023. // Downcasts the pointer of type Base to Derived.
  1024. // Derived must be a subclass of Base. The parameter MUST
  1025. // point to a class of type Derived, not any subclass of it.
  1026. // When RTTI is available, the function performs a runtime
  1027. // check to enforce this.
  1028. template <class Derived, class Base>
  1029. Derived* CheckedDowncastToActualType(Base* base) {
  1030. #if GTEST_HAS_RTTI
  1031.   GTEST_CHECK_(typeid(*base) == typeid(Derived));
  1032.   return dynamic_cast<Derived*>(base);  // NOLINT
  1033. #else
  1034.   return static_cast<Derived*>(base);  // Poor man's downcast.
  1035. #endif
  1036. }
  1037.  
  1038. #if GTEST_HAS_STREAM_REDIRECTION
  1039.  
  1040. // Defines the stderr capturer:
  1041. //   CaptureStdout     - starts capturing stdout.
  1042. //   GetCapturedStdout - stops capturing stdout and returns the captured string.
  1043. //   CaptureStderr     - starts capturing stderr.
  1044. //   GetCapturedStderr - stops capturing stderr and returns the captured string.
  1045. //
  1046. GTEST_API_ void CaptureStdout();
  1047. GTEST_API_ String GetCapturedStdout();
  1048. GTEST_API_ void CaptureStderr();
  1049. GTEST_API_ String GetCapturedStderr();
  1050.  
  1051. #endif  // GTEST_HAS_STREAM_REDIRECTION
  1052.  
  1053.  
  1054. #if GTEST_HAS_DEATH_TEST
  1055.  
  1056. // A copy of all command line arguments.  Set by InitGoogleTest().
  1057. extern ::std::vector<String> g_argvs;
  1058.  
  1059. // GTEST_HAS_DEATH_TEST implies we have ::std::string.
  1060. const ::std::vector<String>& GetArgvs();
  1061.  
  1062. #endif  // GTEST_HAS_DEATH_TEST
  1063.  
  1064. // Defines synchronization primitives.
  1065.  
  1066. #if GTEST_HAS_PTHREAD
  1067.  
  1068. // Sleeps for (roughly) n milli-seconds.  This function is only for
  1069. // testing Google Test's own constructs.  Don't use it in user tests,
  1070. // either directly or indirectly.
  1071. inline void SleepMilliseconds(int n) {
  1072.   const timespec time = {
  1073.     0,                  // 0 seconds.
  1074.     n * 1000L * 1000L,  // And n ms.
  1075.   };
  1076.   nanosleep(&time, NULL);
  1077. }
  1078.  
  1079. // Allows a controller thread to pause execution of newly created
  1080. // threads until notified.  Instances of this class must be created
  1081. // and destroyed in the controller thread.
  1082. //
  1083. // This class is only for testing Google Test's own constructs. Do not
  1084. // use it in user tests, either directly or indirectly.
  1085. class Notification {
  1086.  public:
  1087.   Notification() : notified_(false) {}
  1088.  
  1089.   // Notifies all threads created with this notification to start. Must
  1090.   // be called from the controller thread.
  1091.   void Notify() { notified_ = true; }
  1092.  
  1093.   // Blocks until the controller thread notifies. Must be called from a test
  1094.   // thread.
  1095.   void WaitForNotification() {
  1096.     while(!notified_) {
  1097.       SleepMilliseconds(10);
  1098.     }
  1099.   }
  1100.  
  1101.  private:
  1102.   volatile bool notified_;
  1103.  
  1104.   GTEST_DISALLOW_COPY_AND_ASSIGN_(Notification);
  1105. };
  1106.  
  1107. // As a C-function, ThreadFuncWithCLinkage cannot be templated itself.
  1108. // Consequently, it cannot select a correct instantiation of ThreadWithParam
  1109. // in order to call its Run(). Introducing ThreadWithParamBase as a
  1110. // non-templated base class for ThreadWithParam allows us to bypass this
  1111. // problem.
  1112. class ThreadWithParamBase {
  1113.  public:
  1114.   virtual ~ThreadWithParamBase() {}
  1115.   virtual void Run() = 0;
  1116. };
  1117.  
  1118. // pthread_create() accepts a pointer to a function type with the C linkage.
  1119. // According to the Standard (7.5/1), function types with different linkages
  1120. // are different even if they are otherwise identical.  Some compilers (for
  1121. // example, SunStudio) treat them as different types.  Since class methods
  1122. // cannot be defined with C-linkage we need to define a free C-function to
  1123. // pass into pthread_create().
  1124. extern "C" inline void* ThreadFuncWithCLinkage(void* thread) {
  1125.   static_cast<ThreadWithParamBase*>(thread)->Run();
  1126.   return NULL;
  1127. }
  1128.  
  1129. // Helper class for testing Google Test's multi-threading constructs.
  1130. // To use it, write:
  1131. //
  1132. //   void ThreadFunc(int param) { /* Do things with param */ }
  1133. //   Notification thread_can_start;
  1134. //   ...
  1135. //   // The thread_can_start parameter is optional; you can supply NULL.
  1136. //   ThreadWithParam<int> thread(&ThreadFunc, 5, &thread_can_start);
  1137. //   thread_can_start.Notify();
  1138. //
  1139. // These classes are only for testing Google Test's own constructs. Do
  1140. // not use them in user tests, either directly or indirectly.
  1141. template <typename T>
  1142. class ThreadWithParam : public ThreadWithParamBase {
  1143.  public:
  1144.   typedef void (*UserThreadFunc)(T);
  1145.  
  1146.   ThreadWithParam(
  1147.       UserThreadFunc func, T param, Notification* thread_can_start)
  1148.       : func_(func),
  1149.         param_(param),
  1150.         thread_can_start_(thread_can_start),
  1151.         finished_(false) {
  1152.     ThreadWithParamBase* const base = this;
  1153.     // The thread can be created only after all fields except thread_
  1154.     // have been initialized.
  1155.     GTEST_CHECK_POSIX_SUCCESS_(
  1156.         pthread_create(&thread_, 0, &ThreadFuncWithCLinkage, base));
  1157.   }
  1158.   ~ThreadWithParam() { Join(); }
  1159.  
  1160.   void Join() {
  1161.     if (!finished_) {
  1162.       GTEST_CHECK_POSIX_SUCCESS_(pthread_join(thread_, 0));
  1163.       finished_ = true;
  1164.     }
  1165.   }
  1166.  
  1167.   virtual void Run() {
  1168.     if (thread_can_start_ != NULL)
  1169.       thread_can_start_->WaitForNotification();
  1170.     func_(param_);
  1171.   }
  1172.  
  1173.  private:
  1174.   const UserThreadFunc func_;  // User-supplied thread function.
  1175.   const T param_;  // User-supplied parameter to the thread function.
  1176.   // When non-NULL, used to block execution until the controller thread
  1177.   // notifies.
  1178.   Notification* const thread_can_start_;
  1179.   bool finished_;  // true iff we know that the thread function has finished.
  1180.   pthread_t thread_;  // The native thread object.
  1181.  
  1182.   GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadWithParam);
  1183. };
  1184.  
  1185. // MutexBase and Mutex implement mutex on pthreads-based platforms. They
  1186. // are used in conjunction with class MutexLock:
  1187. //
  1188. //   Mutex mutex;
  1189. //   ...
  1190. //   MutexLock lock(&mutex);  // Acquires the mutex and releases it at the end
  1191. //                            // of the current scope.
  1192. //
  1193. // MutexBase implements behavior for both statically and dynamically
  1194. // allocated mutexes.  Do not use MutexBase directly.  Instead, write
  1195. // the following to define a static mutex:
  1196. //
  1197. //   GTEST_DEFINE_STATIC_MUTEX_(g_some_mutex);
  1198. //
  1199. // You can forward declare a static mutex like this:
  1200. //
  1201. //   GTEST_DECLARE_STATIC_MUTEX_(g_some_mutex);
  1202. //
  1203. // To create a dynamic mutex, just define an object of type Mutex.
  1204. class MutexBase {
  1205.  public:
  1206.   // Acquires this mutex.
  1207.   void Lock() {
  1208.     GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_lock(&mutex_));
  1209.     owner_ = pthread_self();
  1210.   }
  1211.  
  1212.   // Releases this mutex.
  1213.   void Unlock() {
  1214.     // We don't protect writing to owner_ here, as it's the caller's
  1215.     // responsibility to ensure that the current thread holds the
  1216.     // mutex when this is called.
  1217.     owner_ = 0;
  1218.     GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_unlock(&mutex_));
  1219.   }
  1220.  
  1221.   // Does nothing if the current thread holds the mutex. Otherwise, crashes
  1222.   // with high probability.
  1223.   void AssertHeld() const {
  1224.     GTEST_CHECK_(owner_ == pthread_self())
  1225.         << "The current thread is not holding the mutex @" << this;
  1226.   }
  1227.  
  1228.   // A static mutex may be used before main() is entered.  It may even
  1229.   // be used before the dynamic initialization stage.  Therefore we
  1230.   // must be able to initialize a static mutex object at link time.
  1231.   // This means MutexBase has to be a POD and its member variables
  1232.   // have to be public.
  1233.  public:
  1234.   pthread_mutex_t mutex_;  // The underlying pthread mutex.
  1235.   pthread_t owner_;  // The thread holding the mutex; 0 means no one holds it.
  1236. };
  1237.  
  1238. // Forward-declares a static mutex.
  1239. # define GTEST_DECLARE_STATIC_MUTEX_(mutex) \
  1240.     extern ::testing::internal::MutexBase mutex
  1241.  
  1242. // Defines and statically (i.e. at link time) initializes a static mutex.
  1243. # define GTEST_DEFINE_STATIC_MUTEX_(mutex) \
  1244.     ::testing::internal::MutexBase mutex = { PTHREAD_MUTEX_INITIALIZER, 0 }
  1245.  
  1246. // The Mutex class can only be used for mutexes created at runtime. It
  1247. // shares its API with MutexBase otherwise.
  1248. class Mutex : public MutexBase {
  1249.  public:
  1250.   Mutex() {
  1251.     GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_init(&mutex_, NULL));
  1252.     owner_ = 0;
  1253.   }
  1254.   ~Mutex() {
  1255.     GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_destroy(&mutex_));
  1256.   }
  1257.  
  1258.  private:
  1259.   GTEST_DISALLOW_COPY_AND_ASSIGN_(Mutex);
  1260. };
  1261.  
  1262. // We cannot name this class MutexLock as the ctor declaration would
  1263. // conflict with a macro named MutexLock, which is defined on some
  1264. // platforms.  Hence the typedef trick below.
  1265. class GTestMutexLock {
  1266.  public:
  1267.   explicit GTestMutexLock(MutexBase* mutex)
  1268.       : mutex_(mutex) { mutex_->Lock(); }
  1269.  
  1270.   ~GTestMutexLock() { mutex_->Unlock(); }
  1271.  
  1272.  private:
  1273.   MutexBase* const mutex_;
  1274.  
  1275.   GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestMutexLock);
  1276. };
  1277.  
  1278. typedef GTestMutexLock MutexLock;
  1279.  
  1280. // Helpers for ThreadLocal.
  1281.  
  1282. // pthread_key_create() requires DeleteThreadLocalValue() to have
  1283. // C-linkage.  Therefore it cannot be templatized to access
  1284. // ThreadLocal<T>.  Hence the need for class
  1285. // ThreadLocalValueHolderBase.
  1286. class ThreadLocalValueHolderBase {
  1287.  public:
  1288.   virtual ~ThreadLocalValueHolderBase() {}
  1289. };
  1290.  
  1291. // Called by pthread to delete thread-local data stored by
  1292. // pthread_setspecific().
  1293. extern "C" inline void DeleteThreadLocalValue(void* value_holder) {
  1294.   delete static_cast<ThreadLocalValueHolderBase*>(value_holder);
  1295. }
  1296.  
  1297. // Implements thread-local storage on pthreads-based systems.
  1298. //
  1299. //   // Thread 1
  1300. //   ThreadLocal<int> tl(100);  // 100 is the default value for each thread.
  1301. //
  1302. //   // Thread 2
  1303. //   tl.set(150);  // Changes the value for thread 2 only.
  1304. //   EXPECT_EQ(150, tl.get());
  1305. //
  1306. //   // Thread 1
  1307. //   EXPECT_EQ(100, tl.get());  // In thread 1, tl has the original value.
  1308. //   tl.set(200);
  1309. //   EXPECT_EQ(200, tl.get());
  1310. //
  1311. // The template type argument T must have a public copy constructor.
  1312. // In addition, the default ThreadLocal constructor requires T to have
  1313. // a public default constructor.
  1314. //
  1315. // An object managed for a thread by a ThreadLocal instance is deleted
  1316. // when the thread exits.  Or, if the ThreadLocal instance dies in
  1317. // that thread, when the ThreadLocal dies.  It's the user's
  1318. // responsibility to ensure that all other threads using a ThreadLocal
  1319. // have exited when it dies, or the per-thread objects for those
  1320. // threads will not be deleted.
  1321. //
  1322. // Google Test only uses global ThreadLocal objects.  That means they
  1323. // will die after main() has returned.  Therefore, no per-thread
  1324. // object managed by Google Test will be leaked as long as all threads
  1325. // using Google Test have exited when main() returns.
  1326. template <typename T>
  1327. class ThreadLocal {
  1328.  public:
  1329.   ThreadLocal() : key_(CreateKey()),
  1330.                   default_() {}
  1331.   explicit ThreadLocal(const T& value) : key_(CreateKey()),
  1332.                                          default_(value) {}
  1333.  
  1334.   ~ThreadLocal() {
  1335.     // Destroys the managed object for the current thread, if any.
  1336.     DeleteThreadLocalValue(pthread_getspecific(key_));
  1337.  
  1338.     // Releases resources associated with the key.  This will *not*
  1339.     // delete managed objects for other threads.
  1340.     GTEST_CHECK_POSIX_SUCCESS_(pthread_key_delete(key_));
  1341.   }
  1342.  
  1343.   T* pointer() { return GetOrCreateValue(); }
  1344.   const T* pointer() const { return GetOrCreateValue(); }
  1345.   const T& get() const { return *pointer(); }
  1346.   void set(const T& value) { *pointer() = value; }
  1347.  
  1348.  private:
  1349.   // Holds a value of type T.
  1350.   class ValueHolder : public ThreadLocalValueHolderBase {
  1351.    public:
  1352.     explicit ValueHolder(const T& value) : value_(value) {}
  1353.  
  1354.     T* pointer() { return &value_; }
  1355.  
  1356.    private:
  1357.     T value_;
  1358.     GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolder);
  1359.   };
  1360.  
  1361.   static pthread_key_t CreateKey() {
  1362.     pthread_key_t key;
  1363.     // When a thread exits, DeleteThreadLocalValue() will be called on
  1364.     // the object managed for that thread.
  1365.     GTEST_CHECK_POSIX_SUCCESS_(
  1366.         pthread_key_create(&key, &DeleteThreadLocalValue));
  1367.     return key;
  1368.   }
  1369.  
  1370.   T* GetOrCreateValue() const {
  1371.     ThreadLocalValueHolderBase* const holder =
  1372.         static_cast<ThreadLocalValueHolderBase*>(pthread_getspecific(key_));
  1373.     if (holder != NULL) {
  1374.       return CheckedDowncastToActualType<ValueHolder>(holder)->pointer();
  1375.     }
  1376.  
  1377.     ValueHolder* const new_holder = new ValueHolder(default_);
  1378.     ThreadLocalValueHolderBase* const holder_base = new_holder;
  1379.     GTEST_CHECK_POSIX_SUCCESS_(pthread_setspecific(key_, holder_base));
  1380.     return new_holder->pointer();
  1381.   }
  1382.  
  1383.   // A key pthreads uses for looking up per-thread values.
  1384.   const pthread_key_t key_;
  1385.   const T default_;  // The default value for each thread.
  1386.  
  1387.   GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocal);
  1388. };
  1389.  
  1390. # define GTEST_IS_THREADSAFE 1
  1391.  
  1392. #else  // GTEST_HAS_PTHREAD
  1393.  
  1394. // A dummy implementation of synchronization primitives (mutex, lock,
  1395. // and thread-local variable).  Necessary for compiling Google Test where
  1396. // mutex is not supported - using Google Test in multiple threads is not
  1397. // supported on such platforms.
  1398.  
  1399. class Mutex {
  1400.  public:
  1401.   Mutex() {}
  1402.   void AssertHeld() const {}
  1403. };
  1404.  
  1405. # define GTEST_DECLARE_STATIC_MUTEX_(mutex) \
  1406.   extern ::testing::internal::Mutex mutex
  1407.  
  1408. # define GTEST_DEFINE_STATIC_MUTEX_(mutex) ::testing::internal::Mutex mutex
  1409.  
  1410. class GTestMutexLock {
  1411.  public:
  1412.   explicit GTestMutexLock(Mutex*) {}  // NOLINT
  1413. };
  1414.  
  1415. typedef GTestMutexLock MutexLock;
  1416.  
  1417. template <typename T>
  1418. class ThreadLocal {
  1419.  public:
  1420.   ThreadLocal() : value_() {}
  1421.   explicit ThreadLocal(const T& value) : value_(value) {}
  1422.   T* pointer() { return &value_; }
  1423.   const T* pointer() const { return &value_; }
  1424.   const T& get() const { return value_; }
  1425.   void set(const T& value) { value_ = value; }
  1426.  private:
  1427.   T value_;
  1428. };
  1429.  
  1430. // The above synchronization primitives have dummy implementations.
  1431. // Therefore Google Test is not thread-safe.
  1432. # define GTEST_IS_THREADSAFE 0
  1433.  
  1434. #endif  // GTEST_HAS_PTHREAD
  1435.  
  1436. // Returns the number of threads running in the process, or 0 to indicate that
  1437. // we cannot detect it.
  1438. GTEST_API_ size_t GetThreadCount();
  1439.  
  1440. // Passing non-POD classes through ellipsis (...) crashes the ARM
  1441. // compiler and generates a warning in Sun Studio.  The Nokia Symbian
  1442. // and the IBM XL C/C++ compiler try to instantiate a copy constructor
  1443. // for objects passed through ellipsis (...), failing for uncopyable
  1444. // objects.  We define this to ensure that only POD is passed through
  1445. // ellipsis on these systems.
  1446. #if defined(__SYMBIAN32__) || defined(__IBMCPP__) || defined(__SUNPRO_CC)
  1447. // We lose support for NULL detection where the compiler doesn't like
  1448. // passing non-POD classes through ellipsis (...).
  1449. # define GTEST_ELLIPSIS_NEEDS_POD_ 1
  1450. #else
  1451. # define GTEST_CAN_COMPARE_NULL 1
  1452. #endif
  1453.  
  1454. // The Nokia Symbian and IBM XL C/C++ compilers cannot decide between
  1455. // const T& and const T* in a function template.  These compilers
  1456. // _can_ decide between class template specializations for T and T*,
  1457. // so a tr1::type_traits-like is_pointer works.
  1458. #if defined(__SYMBIAN32__) || defined(__IBMCPP__)
  1459. # define GTEST_NEEDS_IS_POINTER_ 1
  1460. #endif
  1461.  
  1462. template <bool bool_value>
  1463. struct bool_constant {
  1464.   typedef bool_constant<bool_value> type;
  1465.   static const bool value = bool_value;
  1466. };
  1467. template <bool bool_value> const bool bool_constant<bool_value>::value;
  1468.  
  1469. typedef bool_constant<false> false_type;
  1470. typedef bool_constant<true> true_type;
  1471.  
  1472. template <typename T>
  1473. struct is_pointer : public false_type {};
  1474.  
  1475. template <typename T>
  1476. struct is_pointer<T*> : public true_type {};
  1477.  
  1478. template <typename Iterator>
  1479. struct IteratorTraits {
  1480.   typedef typename Iterator::value_type value_type;
  1481. };
  1482.  
  1483. template <typename T>
  1484. struct IteratorTraits<T*> {
  1485.   typedef T value_type;
  1486. };
  1487.  
  1488. template <typename T>
  1489. struct IteratorTraits<const T*> {
  1490.   typedef T value_type;
  1491. };
  1492.  
  1493. #if GTEST_OS_WINDOWS
  1494. # define GTEST_PATH_SEP_ "\\"
  1495. # define GTEST_HAS_ALT_PATH_SEP_ 1
  1496. // The biggest signed integer type the compiler supports.
  1497. typedef __int64 BiggestInt;
  1498. #else
  1499. # define GTEST_PATH_SEP_ "/"
  1500. # define GTEST_HAS_ALT_PATH_SEP_ 0
  1501. typedef long long BiggestInt;  // NOLINT
  1502. #endif  // GTEST_OS_WINDOWS
  1503.  
  1504. // Utilities for char.
  1505.  
  1506. // isspace(int ch) and friends accept an unsigned char or EOF.  char
  1507. // may be signed, depending on the compiler (or compiler flags).
  1508. // Therefore we need to cast a char to unsigned char before calling
  1509. // isspace(), etc.
  1510.  
  1511. inline bool IsAlpha(char ch) {
  1512.   return isalpha(static_cast<unsigned char>(ch)) != 0;
  1513. }
  1514. inline bool IsAlNum(char ch) {
  1515.   return isalnum(static_cast<unsigned char>(ch)) != 0;
  1516. }
  1517. inline bool IsDigit(char ch) {
  1518.   return isdigit(static_cast<unsigned char>(ch)) != 0;
  1519. }
  1520. inline bool IsLower(char ch) {
  1521.   return islower(static_cast<unsigned char>(ch)) != 0;
  1522. }
  1523. inline bool IsSpace(char ch) {
  1524.   return isspace(static_cast<unsigned char>(ch)) != 0;
  1525. }
  1526. inline bool IsUpper(char ch) {
  1527.   return isupper(static_cast<unsigned char>(ch)) != 0;
  1528. }
  1529. inline bool IsXDigit(char ch) {
  1530.   return isxdigit(static_cast<unsigned char>(ch)) != 0;
  1531. }
  1532.  
  1533. inline char ToLower(char ch) {
  1534.   return static_cast<char>(tolower(static_cast<unsigned char>(ch)));
  1535. }
  1536. inline char ToUpper(char ch) {
  1537.   return static_cast<char>(toupper(static_cast<unsigned char>(ch)));
  1538. }
  1539.  
  1540. // The testing::internal::posix namespace holds wrappers for common
  1541. // POSIX functions.  These wrappers hide the differences between
  1542. // Windows/MSVC and POSIX systems.  Since some compilers define these
  1543. // standard functions as macros, the wrapper cannot have the same name
  1544. // as the wrapped function.
  1545.  
  1546. namespace posix {
  1547.  
  1548. // Functions with a different name on Windows.
  1549.  
  1550. #if GTEST_OS_WINDOWS
  1551.  
  1552. typedef struct _stat StatStruct;
  1553.  
  1554. # ifdef __BORLANDC__
  1555. inline int IsATTY(int fd) { return isatty(fd); }
  1556. inline int StrCaseCmp(const char* s1, const char* s2) {
  1557.   return stricmp(s1, s2);
  1558. }
  1559. inline char* StrDup(const char* src) { return strdup(src); }
  1560. # else  // !__BORLANDC__
  1561. #  if GTEST_OS_WINDOWS_MOBILE
  1562. inline int IsATTY(int /* fd */) { return 0; }
  1563. #  else
  1564. inline int IsATTY(int fd) { return _isatty(fd); }
  1565. #  endif  // GTEST_OS_WINDOWS_MOBILE
  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. # endif  // __BORLANDC__
  1571.  
  1572. # if GTEST_OS_WINDOWS_MOBILE
  1573. inline int FileNo(FILE* file) { return reinterpret_cast<int>(_fileno(file)); }
  1574. // Stat(), RmDir(), and IsDir() are not needed on Windows CE at this
  1575. // time and thus not defined there.
  1576. # else
  1577. inline int FileNo(FILE* file) { return _fileno(file); }
  1578. inline int Stat(const char* path, StatStruct* buf) { return _stat(path, buf); }
  1579. inline int RmDir(const char* dir) { return _rmdir(dir); }
  1580. inline bool IsDir(const StatStruct& st) {
  1581.   return (_S_IFDIR & st.st_mode) != 0;
  1582. }
  1583. # endif  // GTEST_OS_WINDOWS_MOBILE
  1584.  
  1585. #else
  1586.  
  1587. typedef struct stat StatStruct;
  1588.  
  1589. inline int FileNo(FILE* file) { return fileno(file); }
  1590. inline int IsATTY(int fd) { return isatty(fd); }
  1591. inline int Stat(const char* path, StatStruct* buf) { return stat(path, buf); }
  1592. inline int StrCaseCmp(const char* s1, const char* s2) {
  1593.   return strcasecmp(s1, s2);
  1594. }
  1595. inline char* StrDup(const char* src) { return strdup(src); }
  1596. inline int RmDir(const char* dir) { return rmdir(dir); }
  1597. inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); }
  1598.  
  1599. #endif  // GTEST_OS_WINDOWS
  1600.  
  1601. // Functions deprecated by MSVC 8.0.
  1602.  
  1603. #ifdef _MSC_VER
  1604. // Temporarily disable warning 4996 (deprecated function).
  1605. # pragma warning(push)
  1606. # pragma warning(disable:4996)
  1607. #endif
  1608.  
  1609. inline const char* StrNCpy(char* dest, const char* src, size_t n) {
  1610.   return strncpy(dest, src, n);
  1611. }
  1612.  
  1613. // ChDir(), FReopen(), FDOpen(), Read(), Write(), Close(), and
  1614. // StrError() aren't needed on Windows CE at this time and thus not
  1615. // defined there.
  1616.  
  1617. #if !GTEST_OS_WINDOWS_MOBILE
  1618. inline int ChDir(const char* dir) { return chdir(dir); }
  1619. #endif
  1620. inline FILE* FOpen(const char* path, const char* mode) {
  1621.   return fopen(path, mode);
  1622. }
  1623. #if !GTEST_OS_WINDOWS_MOBILE
  1624. inline FILE *FReopen(const char* path, const char* mode, FILE* stream) {
  1625.   return freopen(path, mode, stream);
  1626. }
  1627. inline FILE* FDOpen(int fd, const char* mode) { return fdopen(fd, mode); }
  1628. #endif
  1629. inline int FClose(FILE* fp) { return fclose(fp); }
  1630. #if !GTEST_OS_WINDOWS_MOBILE
  1631. inline int Read(int fd, void* buf, unsigned int count) {
  1632.   return static_cast<int>(read(fd, buf, count));
  1633. }
  1634. inline int Write(int fd, const void* buf, unsigned int count) {
  1635.   return static_cast<int>(write(fd, buf, count));
  1636. }
  1637. inline int Close(int fd) { return close(fd); }
  1638. inline const char* StrError(int errnum) { return strerror(errnum); }
  1639. #endif
  1640. inline const char* GetEnv(const char* name) {
  1641. #if GTEST_OS_WINDOWS_MOBILE
  1642.   // We are on Windows CE, which has no environment variables.
  1643.   return NULL;
  1644. #elif defined(__BORLANDC__) || defined(__SunOS_5_8) || defined(__SunOS_5_9)
  1645.   // Environment variables which we programmatically clear will be set to the
  1646.   // empty string rather than unset (NULL).  Handle that case.
  1647.   const char* const env = getenv(name);
  1648.   return (env != NULL && env[0] != '\0') ? env : NULL;
  1649. #else
  1650.   return getenv(name);
  1651. #endif
  1652. }
  1653.  
  1654. #ifdef _MSC_VER
  1655. # pragma warning(pop)  // Restores the warning state.
  1656. #endif
  1657.  
  1658. #if GTEST_OS_WINDOWS_MOBILE
  1659. // Windows CE has no C library. The abort() function is used in
  1660. // several places in Google Test. This implementation provides a reasonable
  1661. // imitation of standard behaviour.
  1662. void Abort();
  1663. #else
  1664. inline void Abort() { abort(); }
  1665. #endif  // GTEST_OS_WINDOWS_MOBILE
  1666.  
  1667. }  // namespace posix
  1668.  
  1669. // The maximum number a BiggestInt can represent.  This definition
  1670. // works no matter BiggestInt is represented in one's complement or
  1671. // two's complement.
  1672. //
  1673. // We cannot rely on numeric_limits in STL, as __int64 and long long
  1674. // are not part of standard C++ and numeric_limits doesn't need to be
  1675. // defined for them.
  1676. const BiggestInt kMaxBiggestInt =
  1677.     ~(static_cast<BiggestInt>(1) << (8*sizeof(BiggestInt) - 1));
  1678.  
  1679. // This template class serves as a compile-time function from size to
  1680. // type.  It maps a size in bytes to a primitive type with that
  1681. // size. e.g.
  1682. //
  1683. //   TypeWithSize<4>::UInt
  1684. //
  1685. // is typedef-ed to be unsigned int (unsigned integer made up of 4
  1686. // bytes).
  1687. //
  1688. // Such functionality should belong to STL, but I cannot find it
  1689. // there.
  1690. //
  1691. // Google Test uses this class in the implementation of floating-point
  1692. // comparison.
  1693. //
  1694. // For now it only handles UInt (unsigned int) as that's all Google Test
  1695. // needs.  Other types can be easily added in the future if need
  1696. // arises.
  1697. template <size_t size>
  1698. class TypeWithSize {
  1699.  public:
  1700.   // This prevents the user from using TypeWithSize<N> with incorrect
  1701.   // values of N.
  1702.   typedef void UInt;
  1703. };
  1704.  
  1705. // The specialization for size 4.
  1706. template <>
  1707. class TypeWithSize<4> {
  1708.  public:
  1709.   // unsigned int has size 4 in both gcc and MSVC.
  1710.   //
  1711.   // As base/basictypes.h doesn't compile on Windows, we cannot use
  1712.   // uint32, uint64, and etc here.
  1713.   typedef int Int;
  1714.   typedef unsigned int UInt;
  1715. };
  1716.  
  1717. // The specialization for size 8.
  1718. template <>
  1719. class TypeWithSize<8> {
  1720.  public:
  1721.  
  1722. #if GTEST_OS_WINDOWS
  1723.   typedef __int64 Int;
  1724.   typedef unsigned __int64 UInt;
  1725. #else
  1726.   typedef long long Int;  // NOLINT
  1727.   typedef unsigned long long UInt;  // NOLINT
  1728. #endif  // GTEST_OS_WINDOWS
  1729. };
  1730.  
  1731. // Integer types of known sizes.
  1732. typedef TypeWithSize<4>::Int Int32;
  1733. typedef TypeWithSize<4>::UInt UInt32;
  1734. typedef TypeWithSize<8>::Int Int64;
  1735. typedef TypeWithSize<8>::UInt UInt64;
  1736. typedef TypeWithSize<8>::Int TimeInMillis;  // Represents time in milliseconds.
  1737.  
  1738. // Utilities for command line flags and environment variables.
  1739.  
  1740. // Macro for referencing flags.
  1741. #define GTEST_FLAG(name) FLAGS_gtest_##name
  1742.  
  1743. // Macros for declaring flags.
  1744. #define GTEST_DECLARE_bool_(name) GTEST_API_ extern bool GTEST_FLAG(name)
  1745. #define GTEST_DECLARE_int32_(name) \
  1746.     GTEST_API_ extern ::testing::internal::Int32 GTEST_FLAG(name)
  1747. #define GTEST_DECLARE_string_(name) \
  1748.     GTEST_API_ extern ::testing::internal::String GTEST_FLAG(name)
  1749.  
  1750. // Macros for defining flags.
  1751. #define GTEST_DEFINE_bool_(name, default_val, doc) \
  1752.     GTEST_API_ bool GTEST_FLAG(name) = (default_val)
  1753. #define GTEST_DEFINE_int32_(name, default_val, doc) \
  1754.     GTEST_API_ ::testing::internal::Int32 GTEST_FLAG(name) = (default_val)
  1755. #define GTEST_DEFINE_string_(name, default_val, doc) \
  1756.     GTEST_API_ ::testing::internal::String GTEST_FLAG(name) = (default_val)
  1757.  
  1758. // Parses 'str' for a 32-bit signed integer.  If successful, writes the result
  1759. // to *value and returns true; otherwise leaves *value unchanged and returns
  1760. // false.
  1761. // TODO(chandlerc): Find a better way to refactor flag and environment parsing
  1762. // out of both gtest-port.cc and gtest.cc to avoid exporting this utility
  1763. // function.
  1764. bool ParseInt32(const Message& src_text, const char* str, Int32* value);
  1765.  
  1766. // Parses a bool/Int32/string from the environment variable
  1767. // corresponding to the given Google Test flag.
  1768. bool BoolFromGTestEnv(const char* flag, bool default_val);
  1769. GTEST_API_ Int32 Int32FromGTestEnv(const char* flag, Int32 default_val);
  1770. const char* StringFromGTestEnv(const char* flag, const char* default_val);
  1771.  
  1772. }  // namespace internal
  1773. }  // namespace testing
  1774.  
  1775. #endif  // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_
  1776.