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1 // Copyright 2005, Google Inc. |
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2 // All rights reserved. |
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3 // |
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4 // Redistribution and use in source and binary forms, with or without |
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5 // modification, are permitted provided that the following conditions are |
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6 // met: |
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7 // |
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8 // * Redistributions of source code must retain the above copyright |
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9 // notice, this list of conditions and the following disclaimer. |
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10 // * Redistributions in binary form must reproduce the above |
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11 // copyright notice, this list of conditions and the following disclaimer |
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12 // in the documentation and/or other materials provided with the |
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13 // distribution. |
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14 // * Neither the name of Google Inc. nor the names of its |
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15 // contributors may be used to endorse or promote products derived from |
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16 // this software without specific prior written permission. |
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17 // |
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18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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29 // |
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30 // Authors: wan@google.com (Zhanyong Wan) |
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31 // |
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32 // Low-level types and utilities for porting Google Test to various |
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33 // platforms. They are subject to change without notice. DO NOT USE |
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34 // THEM IN USER CODE. |
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35 // |
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36 // This file is fundamental to Google Test. All other Google Test source |
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37 // files are expected to #include this. Therefore, it cannot #include |
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38 // any other Google Test header. |
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39 |
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40 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ |
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41 #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ |
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42 |
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43 // The user can define the following macros in the build script to |
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44 // control Google Test's behavior. If the user doesn't define a macro |
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45 // in this list, Google Test will define it. |
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46 // |
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47 // GTEST_HAS_CLONE - Define it to 1/0 to indicate that clone(2) |
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48 // is/isn't available. |
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49 // GTEST_HAS_EXCEPTIONS - Define it to 1/0 to indicate that exceptions |
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50 // are enabled. |
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51 // GTEST_HAS_GLOBAL_STRING - Define it to 1/0 to indicate that ::string |
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52 // is/isn't available (some systems define |
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53 // ::string, which is different to std::string). |
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54 // GTEST_HAS_GLOBAL_WSTRING - Define it to 1/0 to indicate that ::string |
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55 // is/isn't available (some systems define |
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56 // ::wstring, which is different to std::wstring). |
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57 // GTEST_HAS_POSIX_RE - Define it to 1/0 to indicate that POSIX regular |
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58 // expressions are/aren't available. |
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59 // GTEST_HAS_PTHREAD - Define it to 1/0 to indicate that <pthread.h> |
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60 // is/isn't available. |
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61 // GTEST_HAS_RTTI - Define it to 1/0 to indicate that RTTI is/isn't |
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62 // enabled. |
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63 // GTEST_HAS_STD_WSTRING - Define it to 1/0 to indicate that |
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64 // std::wstring does/doesn't work (Google Test can |
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65 // be used where std::wstring is unavailable). |
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66 // GTEST_HAS_TR1_TUPLE - Define it to 1/0 to indicate tr1::tuple |
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67 // is/isn't available. |
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68 // GTEST_HAS_SEH - Define it to 1/0 to indicate whether the |
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69 // compiler supports Microsoft's "Structured |
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70 // Exception Handling". |
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71 // GTEST_HAS_STREAM_REDIRECTION |
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72 // - Define it to 1/0 to indicate whether the |
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73 // platform supports I/O stream redirection using |
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74 // dup() and dup2(). |
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75 // GTEST_USE_OWN_TR1_TUPLE - Define it to 1/0 to indicate whether Google |
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76 // Test's own tr1 tuple implementation should be |
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77 // used. Unused when the user sets |
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78 // GTEST_HAS_TR1_TUPLE to 0. |
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79 // GTEST_LANG_CXX11 - Define it to 1/0 to indicate that Google Test |
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80 // is building in C++11/C++98 mode. |
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81 // GTEST_LINKED_AS_SHARED_LIBRARY |
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82 // - Define to 1 when compiling tests that use |
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83 // Google Test as a shared library (known as |
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84 // DLL on Windows). |
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85 // GTEST_CREATE_SHARED_LIBRARY |
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86 // - Define to 1 when compiling Google Test itself |
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87 // as a shared library. |
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88 |
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89 // This header defines the following utilities: |
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90 // |
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91 // Macros indicating the current platform (defined to 1 if compiled on |
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92 // the given platform; otherwise undefined): |
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93 // GTEST_OS_AIX - IBM AIX |
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94 // GTEST_OS_CYGWIN - Cygwin |
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95 // GTEST_OS_HPUX - HP-UX |
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96 // GTEST_OS_LINUX - Linux |
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97 // GTEST_OS_LINUX_ANDROID - Google Android |
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98 // GTEST_OS_MAC - Mac OS X |
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99 // GTEST_OS_IOS - iOS |
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100 // GTEST_OS_IOS_SIMULATOR - iOS simulator |
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101 // GTEST_OS_NACL - Google Native Client (NaCl) |
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102 // GTEST_OS_OPENBSD - OpenBSD |
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103 // GTEST_OS_QNX - QNX |
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104 // GTEST_OS_SOLARIS - Sun Solaris |
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105 // GTEST_OS_SYMBIAN - Symbian |
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106 // GTEST_OS_WINDOWS - Windows (Desktop, MinGW, or Mobile) |
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107 // GTEST_OS_WINDOWS_DESKTOP - Windows Desktop |
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108 // GTEST_OS_WINDOWS_MINGW - MinGW |
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109 // GTEST_OS_WINDOWS_MOBILE - Windows Mobile |
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110 // GTEST_OS_ZOS - z/OS |
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111 // |
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112 // Among the platforms, Cygwin, Linux, Max OS X, and Windows have the |
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113 // most stable support. Since core members of the Google Test project |
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114 // don't have access to other platforms, support for them may be less |
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115 // stable. If you notice any problems on your platform, please notify |
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116 // googletestframework@googlegroups.com (patches for fixing them are |
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117 // even more welcome!). |
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118 // |
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119 // Note that it is possible that none of the GTEST_OS_* macros are defined. |
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120 // |
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121 // Macros indicating available Google Test features (defined to 1 if |
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122 // the corresponding feature is supported; otherwise undefined): |
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123 // GTEST_HAS_COMBINE - the Combine() function (for value-parameterized |
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124 // tests) |
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125 // GTEST_HAS_DEATH_TEST - death tests |
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126 // GTEST_HAS_PARAM_TEST - value-parameterized tests |
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127 // GTEST_HAS_TYPED_TEST - typed tests |
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128 // GTEST_HAS_TYPED_TEST_P - type-parameterized tests |
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129 // GTEST_USES_POSIX_RE - enhanced POSIX regex is used. Do not confuse with |
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130 // GTEST_HAS_POSIX_RE (see above) which users can |
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131 // define themselves. |
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132 // GTEST_USES_SIMPLE_RE - our own simple regex is used; |
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133 // the above two are mutually exclusive. |
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134 // GTEST_CAN_COMPARE_NULL - accepts untyped NULL in EXPECT_EQ(). |
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135 // |
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136 // Macros for basic C++ coding: |
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137 // GTEST_AMBIGUOUS_ELSE_BLOCKER_ - for disabling a gcc warning. |
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138 // GTEST_ATTRIBUTE_UNUSED_ - declares that a class' instances or a |
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139 // variable don't have to be used. |
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140 // GTEST_DISALLOW_ASSIGN_ - disables operator=. |
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141 // GTEST_DISALLOW_COPY_AND_ASSIGN_ - disables copy ctor and operator=. |
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142 // GTEST_MUST_USE_RESULT_ - declares that a function's result must be used. |
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143 // |
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144 // Synchronization: |
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145 // Mutex, MutexLock, ThreadLocal, GetThreadCount() |
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146 // - synchronization primitives. |
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147 // GTEST_IS_THREADSAFE - defined to 1 to indicate that the above |
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148 // synchronization primitives have real implementations |
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149 // and Google Test is thread-safe; or 0 otherwise. |
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150 // |
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151 // Template meta programming: |
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152 // is_pointer - as in TR1; needed on Symbian and IBM XL C/C++ only. |
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153 // IteratorTraits - partial implementation of std::iterator_traits, which |
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154 // is not available in libCstd when compiled with Sun C++. |
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155 // |
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156 // Smart pointers: |
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157 // scoped_ptr - as in TR2. |
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158 // |
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159 // Regular expressions: |
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160 // RE - a simple regular expression class using the POSIX |
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161 // Extended Regular Expression syntax on UNIX-like |
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162 // platforms, or a reduced regular exception syntax on |
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163 // other platforms, including Windows. |
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164 // |
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165 // Logging: |
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166 // GTEST_LOG_() - logs messages at the specified severity level. |
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167 // LogToStderr() - directs all log messages to stderr. |
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168 // FlushInfoLog() - flushes informational log messages. |
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169 // |
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170 // Stdout and stderr capturing: |
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171 // CaptureStdout() - starts capturing stdout. |
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172 // GetCapturedStdout() - stops capturing stdout and returns the captured |
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173 // string. |
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174 // CaptureStderr() - starts capturing stderr. |
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175 // GetCapturedStderr() - stops capturing stderr and returns the captured |
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176 // string. |
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177 // |
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178 // Integer types: |
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179 // TypeWithSize - maps an integer to a int type. |
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180 // Int32, UInt32, Int64, UInt64, TimeInMillis |
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181 // - integers of known sizes. |
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182 // BiggestInt - the biggest signed integer type. |
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183 // |
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184 // Command-line utilities: |
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185 // GTEST_FLAG() - references a flag. |
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186 // GTEST_DECLARE_*() - declares a flag. |
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187 // GTEST_DEFINE_*() - defines a flag. |
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188 // GetInjectableArgvs() - returns the command line as a vector of strings. |
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189 // |
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190 // Environment variable utilities: |
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191 // GetEnv() - gets the value of an environment variable. |
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192 // BoolFromGTestEnv() - parses a bool environment variable. |
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193 // Int32FromGTestEnv() - parses an Int32 environment variable. |
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194 // StringFromGTestEnv() - parses a string environment variable. |
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195 |
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196 #include <ctype.h> // for isspace, etc |
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197 #include <stddef.h> // for ptrdiff_t |
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198 #include <stdlib.h> |
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199 #include <stdio.h> |
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200 #include <string.h> |
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201 #ifndef _WIN32_WCE |
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202 # include <sys/types.h> |
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203 # include <sys/stat.h> |
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204 #endif // !_WIN32_WCE |
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205 |
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206 #if defined __APPLE__ |
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207 # include <AvailabilityMacros.h> |
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208 # include <TargetConditionals.h> |
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209 #endif |
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210 |
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211 #include <iostream> // NOLINT |
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212 #include <sstream> // NOLINT |
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213 #include <string> // NOLINT |
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214 |
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215 #define GTEST_DEV_EMAIL_ "googletestframework@@googlegroups.com" |
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216 #define GTEST_FLAG_PREFIX_ "gtest_" |
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217 #define GTEST_FLAG_PREFIX_DASH_ "gtest-" |
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218 #define GTEST_FLAG_PREFIX_UPPER_ "GTEST_" |
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219 #define GTEST_NAME_ "Google Test" |
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220 #define GTEST_PROJECT_URL_ "http://code.google.com/p/googletest/" |
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221 |
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222 // Determines the version of gcc that is used to compile this. |
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223 #ifdef __GNUC__ |
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224 // 40302 means version 4.3.2. |
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225 # define GTEST_GCC_VER_ \ |
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226 (__GNUC__*10000 + __GNUC_MINOR__*100 + __GNUC_PATCHLEVEL__) |
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227 #endif // __GNUC__ |
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228 |
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229 // Determines the platform on which Google Test is compiled. |
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230 #ifdef __CYGWIN__ |
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231 # define GTEST_OS_CYGWIN 1 |
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232 #elif defined __SYMBIAN32__ |
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233 # define GTEST_OS_SYMBIAN 1 |
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234 #elif defined _WIN32 |
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235 # define GTEST_OS_WINDOWS 1 |
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236 # ifdef _WIN32_WCE |
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237 # define GTEST_OS_WINDOWS_MOBILE 1 |
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238 # elif defined(__MINGW__) || defined(__MINGW32__) |
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239 # define GTEST_OS_WINDOWS_MINGW 1 |
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240 # else |
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241 # define GTEST_OS_WINDOWS_DESKTOP 1 |
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242 # endif // _WIN32_WCE |
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243 #elif defined __APPLE__ |
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244 # define GTEST_OS_MAC 1 |
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245 # if TARGET_OS_IPHONE |
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246 # define GTEST_OS_IOS 1 |
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247 # if TARGET_IPHONE_SIMULATOR |
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248 # define GTEST_OS_IOS_SIMULATOR 1 |
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249 # endif |
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250 # endif |
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251 #elif defined __linux__ |
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252 # define GTEST_OS_LINUX 1 |
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253 # if defined __ANDROID__ |
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254 # define GTEST_OS_LINUX_ANDROID 1 |
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255 # endif |
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256 #elif defined __MVS__ |
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257 # define GTEST_OS_ZOS 1 |
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258 #elif defined(__sun) && defined(__SVR4) |
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259 # define GTEST_OS_SOLARIS 1 |
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260 #elif defined(_AIX) |
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261 # define GTEST_OS_AIX 1 |
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262 #elif defined(__hpux) |
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263 # define GTEST_OS_HPUX 1 |
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264 #elif defined __native_client__ |
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265 # define GTEST_OS_NACL 1 |
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266 #elif defined __OpenBSD__ |
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267 # define GTEST_OS_OPENBSD 1 |
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268 #elif defined __QNX__ |
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269 # define GTEST_OS_QNX 1 |
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270 #endif // __CYGWIN__ |
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271 |
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272 #ifndef GTEST_LANG_CXX11 |
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273 // gcc and clang define __GXX_EXPERIMENTAL_CXX0X__ when |
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274 // -std={c,gnu}++{0x,11} is passed. The C++11 standard specifies a |
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275 // value for __cplusplus, and recent versions of clang, gcc, and |
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276 // probably other compilers set that too in C++11 mode. |
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277 # if __GXX_EXPERIMENTAL_CXX0X__ || __cplusplus >= 201103L |
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278 // Compiling in at least C++11 mode. |
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279 # define GTEST_LANG_CXX11 1 |
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280 # else |
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281 # define GTEST_LANG_CXX11 0 |
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282 # endif |
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283 #endif |
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284 |
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285 // Brings in definitions for functions used in the testing::internal::posix |
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286 // namespace (read, write, close, chdir, isatty, stat). We do not currently |
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287 // use them on Windows Mobile. |
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288 #if !GTEST_OS_WINDOWS |
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289 // This assumes that non-Windows OSes provide unistd.h. For OSes where this |
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290 // is not the case, we need to include headers that provide the functions |
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291 // mentioned above. |
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292 # include <unistd.h> |
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293 # include <strings.h> |
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294 #elif !GTEST_OS_WINDOWS_MOBILE |
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295 # include <direct.h> |
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296 # include <io.h> |
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297 #endif |
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298 |
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299 #if GTEST_OS_LINUX_ANDROID |
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300 // Used to define __ANDROID_API__ matching the target NDK API level. |
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301 # include <android/api-level.h> // NOLINT |
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302 #endif |
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303 |
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304 // Defines this to true iff Google Test can use POSIX regular expressions. |
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305 #ifndef GTEST_HAS_POSIX_RE |
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306 # if GTEST_OS_LINUX_ANDROID |
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307 // On Android, <regex.h> is only available starting with Gingerbread. |
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308 # define GTEST_HAS_POSIX_RE (__ANDROID_API__ >= 9) |
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309 # else |
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310 # define GTEST_HAS_POSIX_RE (!GTEST_OS_WINDOWS) |
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311 # endif |
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312 #endif |
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313 |
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314 #if GTEST_HAS_POSIX_RE |
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315 |
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316 // On some platforms, <regex.h> needs someone to define size_t, and |
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317 // won't compile otherwise. We can #include it here as we already |
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318 // included <stdlib.h>, which is guaranteed to define size_t through |
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319 // <stddef.h>. |
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320 # include <regex.h> // NOLINT |
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321 |
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322 # define GTEST_USES_POSIX_RE 1 |
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323 |
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324 #elif GTEST_OS_WINDOWS |
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325 |
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326 // <regex.h> is not available on Windows. Use our own simple regex |
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327 // implementation instead. |
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328 # define GTEST_USES_SIMPLE_RE 1 |
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329 |
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330 #else |
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331 |
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332 // <regex.h> may not be available on this platform. Use our own |
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333 // simple regex implementation instead. |
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334 # define GTEST_USES_SIMPLE_RE 1 |
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335 |
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336 #endif // GTEST_HAS_POSIX_RE |
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337 |
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338 #ifndef GTEST_HAS_EXCEPTIONS |
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339 // The user didn't tell us whether exceptions are enabled, so we need |
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340 // to figure it out. |
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341 # if defined(_MSC_VER) || defined(__BORLANDC__) |
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342 // MSVC's and C++Builder's implementations of the STL use the _HAS_EXCEPTIONS |
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343 // macro to enable exceptions, so we'll do the same. |
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344 // Assumes that exceptions are enabled by default. |
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345 # ifndef _HAS_EXCEPTIONS |
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346 # define _HAS_EXCEPTIONS 1 |
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347 # endif // _HAS_EXCEPTIONS |
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348 # define GTEST_HAS_EXCEPTIONS _HAS_EXCEPTIONS |
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349 # elif defined(__GNUC__) && __EXCEPTIONS |
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350 // gcc defines __EXCEPTIONS to 1 iff exceptions are enabled. |
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351 # define GTEST_HAS_EXCEPTIONS 1 |
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352 # elif defined(__SUNPRO_CC) |
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353 // Sun Pro CC supports exceptions. However, there is no compile-time way of |
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354 // detecting whether they are enabled or not. Therefore, we assume that |
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355 // they are enabled unless the user tells us otherwise. |
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356 # define GTEST_HAS_EXCEPTIONS 1 |
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357 # elif defined(__IBMCPP__) && __EXCEPTIONS |
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358 // xlC defines __EXCEPTIONS to 1 iff exceptions are enabled. |
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359 # define GTEST_HAS_EXCEPTIONS 1 |
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360 # elif defined(__HP_aCC) |
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361 // Exception handling is in effect by default in HP aCC compiler. It has to |
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362 // be turned of by +noeh compiler option if desired. |
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363 # define GTEST_HAS_EXCEPTIONS 1 |
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364 # else |
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365 // For other compilers, we assume exceptions are disabled to be |
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366 // conservative. |
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367 # define GTEST_HAS_EXCEPTIONS 0 |
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368 # endif // defined(_MSC_VER) || defined(__BORLANDC__) |
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369 #endif // GTEST_HAS_EXCEPTIONS |
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370 |
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371 #if !defined(GTEST_HAS_STD_STRING) |
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372 // Even though we don't use this macro any longer, we keep it in case |
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373 // some clients still depend on it. |
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374 # define GTEST_HAS_STD_STRING 1 |
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375 #elif !GTEST_HAS_STD_STRING |
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376 // The user told us that ::std::string isn't available. |
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377 # error "Google Test cannot be used where ::std::string isn't available." |
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378 #endif // !defined(GTEST_HAS_STD_STRING) |
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379 |
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380 #ifndef GTEST_HAS_GLOBAL_STRING |
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381 // The user didn't tell us whether ::string is available, so we need |
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382 // to figure it out. |
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383 |
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384 # define GTEST_HAS_GLOBAL_STRING 0 |
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385 |
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386 #endif // GTEST_HAS_GLOBAL_STRING |
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387 |
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388 #ifndef GTEST_HAS_STD_WSTRING |
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389 // The user didn't tell us whether ::std::wstring is available, so we need |
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390 // to figure it out. |
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391 // TODO(wan@google.com): uses autoconf to detect whether ::std::wstring |
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392 // is available. |
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393 |
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394 // Cygwin 1.7 and below doesn't support ::std::wstring. |
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395 // Solaris' libc++ doesn't support it either. Android has |
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396 // no support for it at least as recent as Froyo (2.2). |
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397 # define GTEST_HAS_STD_WSTRING \ |
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398 (!(GTEST_OS_LINUX_ANDROID || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS)) |
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399 |
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400 #endif // GTEST_HAS_STD_WSTRING |
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401 |
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402 #ifndef GTEST_HAS_GLOBAL_WSTRING |
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403 // The user didn't tell us whether ::wstring is available, so we need |
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404 // to figure it out. |
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405 # define GTEST_HAS_GLOBAL_WSTRING \ |
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406 (GTEST_HAS_STD_WSTRING && GTEST_HAS_GLOBAL_STRING) |
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407 #endif // GTEST_HAS_GLOBAL_WSTRING |
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408 |
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409 // Determines whether RTTI is available. |
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410 #ifndef GTEST_HAS_RTTI |
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411 // The user didn't tell us whether RTTI is enabled, so we need to |
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412 // figure it out. |
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413 |
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414 # ifdef _MSC_VER |
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415 |
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416 # ifdef _CPPRTTI // MSVC defines this macro iff RTTI is enabled. |
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417 # define GTEST_HAS_RTTI 1 |
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418 # else |
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419 # define GTEST_HAS_RTTI 0 |
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420 # endif |
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421 |
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422 // Starting with version 4.3.2, gcc defines __GXX_RTTI iff RTTI is enabled. |
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423 # elif defined(__GNUC__) && (GTEST_GCC_VER_ >= 40302) |
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424 |
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425 # ifdef __GXX_RTTI |
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426 // When building against STLport with the Android NDK and with |
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427 // -frtti -fno-exceptions, the build fails at link time with undefined |
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428 // references to __cxa_bad_typeid. Note sure if STL or toolchain bug, |
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429 // so disable RTTI when detected. |
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430 # if GTEST_OS_LINUX_ANDROID && defined(_STLPORT_MAJOR) && \ |
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431 !defined(__EXCEPTIONS) |
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432 # define GTEST_HAS_RTTI 0 |
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433 # else |
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434 # define GTEST_HAS_RTTI 1 |
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435 # endif // GTEST_OS_LINUX_ANDROID && __STLPORT_MAJOR && !__EXCEPTIONS |
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436 # else |
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437 # define GTEST_HAS_RTTI 0 |
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438 # endif // __GXX_RTTI |
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439 |
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440 // Clang defines __GXX_RTTI starting with version 3.0, but its manual recommends |
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441 // using has_feature instead. has_feature(cxx_rtti) is supported since 2.7, the |
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442 // first version with C++ support. |
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443 # elif defined(__clang__) |
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444 |
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445 # define GTEST_HAS_RTTI __has_feature(cxx_rtti) |
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446 |
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447 // Starting with version 9.0 IBM Visual Age defines __RTTI_ALL__ to 1 if |
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448 // both the typeid and dynamic_cast features are present. |
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449 # elif defined(__IBMCPP__) && (__IBMCPP__ >= 900) |
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450 |
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451 # ifdef __RTTI_ALL__ |
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452 # define GTEST_HAS_RTTI 1 |
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453 # else |
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454 # define GTEST_HAS_RTTI 0 |
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455 # endif |
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456 |
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457 # else |
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458 |
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459 // For all other compilers, we assume RTTI is enabled. |
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460 # define GTEST_HAS_RTTI 1 |
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461 |
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462 # endif // _MSC_VER |
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463 |
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464 #endif // GTEST_HAS_RTTI |
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465 |
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466 // It's this header's responsibility to #include <typeinfo> when RTTI |
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467 // is enabled. |
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468 #if GTEST_HAS_RTTI |
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469 # include <typeinfo> |
|
470 #endif |
|
471 |
|
472 // Determines whether Google Test can use the pthreads library. |
|
473 #ifndef GTEST_HAS_PTHREAD |
|
474 // The user didn't tell us explicitly, so we assume pthreads support is |
|
475 // available on Linux and Mac. |
|
476 // |
|
477 // To disable threading support in Google Test, add -DGTEST_HAS_PTHREAD=0 |
|
478 // to your compiler flags. |
|
479 # define GTEST_HAS_PTHREAD (GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_HPUX \ |
|
480 || GTEST_OS_QNX) |
|
481 #endif // GTEST_HAS_PTHREAD |
|
482 |
|
483 #if GTEST_HAS_PTHREAD |
|
484 // gtest-port.h guarantees to #include <pthread.h> when GTEST_HAS_PTHREAD is |
|
485 // true. |
|
486 # include <pthread.h> // NOLINT |
|
487 |
|
488 // For timespec and nanosleep, used below. |
|
489 # include <time.h> // NOLINT |
|
490 #endif |
|
491 |
|
492 // Determines whether Google Test can use tr1/tuple. You can define |
|
493 // this macro to 0 to prevent Google Test from using tuple (any |
|
494 // feature depending on tuple with be disabled in this mode). |
|
495 #ifndef GTEST_HAS_TR1_TUPLE |
|
496 # if GTEST_OS_LINUX_ANDROID && defined(_STLPORT_MAJOR) |
|
497 // STLport, provided with the Android NDK, has neither <tr1/tuple> or <tuple>. |
|
498 # define GTEST_HAS_TR1_TUPLE 0 |
|
499 # else |
|
500 // The user didn't tell us not to do it, so we assume it's OK. |
|
501 # define GTEST_HAS_TR1_TUPLE 1 |
|
502 # endif |
|
503 #endif // GTEST_HAS_TR1_TUPLE |
|
504 |
|
505 // Determines whether Google Test's own tr1 tuple implementation |
|
506 // should be used. |
|
507 #ifndef GTEST_USE_OWN_TR1_TUPLE |
|
508 // The user didn't tell us, so we need to figure it out. |
|
509 |
|
510 // We use our own TR1 tuple if we aren't sure the user has an |
|
511 // implementation of it already. At this time, libstdc++ 4.0.0+ and |
|
512 // MSVC 2010 are the only mainstream standard libraries that come |
|
513 // with a TR1 tuple implementation. NVIDIA's CUDA NVCC compiler |
|
514 // pretends to be GCC by defining __GNUC__ and friends, but cannot |
|
515 // compile GCC's tuple implementation. MSVC 2008 (9.0) provides TR1 |
|
516 // tuple in a 323 MB Feature Pack download, which we cannot assume the |
|
517 // user has. QNX's QCC compiler is a modified GCC but it doesn't |
|
518 // support TR1 tuple. libc++ only provides std::tuple, in C++11 mode, |
|
519 // and it can be used with some compilers that define __GNUC__. |
|
520 # if (defined(__GNUC__) && !defined(__CUDACC__) && (GTEST_GCC_VER_ >= 40000) \ |
|
521 && !GTEST_OS_QNX && !defined(_LIBCPP_VERSION)) || _MSC_VER >= 1600 |
|
522 # define GTEST_ENV_HAS_TR1_TUPLE_ 1 |
|
523 # endif |
|
524 |
|
525 // C++11 specifies that <tuple> provides std::tuple. Use that if gtest is used |
|
526 // in C++11 mode and libstdc++ isn't very old (binaries targeting OS X 10.6 |
|
527 // can build with clang but need to use gcc4.2's libstdc++). |
|
528 # if GTEST_LANG_CXX11 && (!defined(__GLIBCXX__) || __GLIBCXX__ > 20110325) |
|
529 # define GTEST_ENV_HAS_STD_TUPLE_ 1 |
|
530 # endif |
|
531 |
|
532 # if GTEST_ENV_HAS_TR1_TUPLE_ || GTEST_ENV_HAS_STD_TUPLE_ |
|
533 # define GTEST_USE_OWN_TR1_TUPLE 0 |
|
534 # else |
|
535 # define GTEST_USE_OWN_TR1_TUPLE 1 |
|
536 # endif |
|
537 |
|
538 #endif // GTEST_USE_OWN_TR1_TUPLE |
|
539 |
|
540 // To avoid conditional compilation everywhere, we make it |
|
541 // gtest-port.h's responsibility to #include the header implementing |
|
542 // tr1/tuple. |
|
543 #if GTEST_HAS_TR1_TUPLE |
|
544 |
|
545 # if GTEST_USE_OWN_TR1_TUPLE |
|
546 # include "gtest/internal/gtest-tuple.h" |
|
547 # elif GTEST_ENV_HAS_STD_TUPLE_ |
|
548 # include <tuple> |
|
549 // C++11 puts its tuple into the ::std namespace rather than |
|
550 // ::std::tr1. gtest expects tuple to live in ::std::tr1, so put it there. |
|
551 // This causes undefined behavior, but supported compilers react in |
|
552 // the way we intend. |
|
553 namespace std { |
|
554 namespace tr1 { |
|
555 using ::std::get; |
|
556 using ::std::make_tuple; |
|
557 using ::std::tuple; |
|
558 using ::std::tuple_element; |
|
559 using ::std::tuple_size; |
|
560 } |
|
561 } |
|
562 |
|
563 # elif GTEST_OS_SYMBIAN |
|
564 |
|
565 // On Symbian, BOOST_HAS_TR1_TUPLE causes Boost's TR1 tuple library to |
|
566 // use STLport's tuple implementation, which unfortunately doesn't |
|
567 // work as the copy of STLport distributed with Symbian is incomplete. |
|
568 // By making sure BOOST_HAS_TR1_TUPLE is undefined, we force Boost to |
|
569 // use its own tuple implementation. |
|
570 # ifdef BOOST_HAS_TR1_TUPLE |
|
571 # undef BOOST_HAS_TR1_TUPLE |
|
572 # endif // BOOST_HAS_TR1_TUPLE |
|
573 |
|
574 // This prevents <boost/tr1/detail/config.hpp>, which defines |
|
575 // BOOST_HAS_TR1_TUPLE, from being #included by Boost's <tuple>. |
|
576 # define BOOST_TR1_DETAIL_CONFIG_HPP_INCLUDED |
|
577 # include <tuple> |
|
578 |
|
579 # elif defined(__GNUC__) && (GTEST_GCC_VER_ >= 40000) |
|
580 // GCC 4.0+ implements tr1/tuple in the <tr1/tuple> header. This does |
|
581 // not conform to the TR1 spec, which requires the header to be <tuple>. |
|
582 |
|
583 # if !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302 |
|
584 // Until version 4.3.2, gcc has a bug that causes <tr1/functional>, |
|
585 // which is #included by <tr1/tuple>, to not compile when RTTI is |
|
586 // disabled. _TR1_FUNCTIONAL is the header guard for |
|
587 // <tr1/functional>. Hence the following #define is a hack to prevent |
|
588 // <tr1/functional> from being included. |
|
589 # define _TR1_FUNCTIONAL 1 |
|
590 # include <tr1/tuple> |
|
591 # undef _TR1_FUNCTIONAL // Allows the user to #include |
|
592 // <tr1/functional> if he chooses to. |
|
593 # else |
|
594 # include <tr1/tuple> // NOLINT |
|
595 # endif // !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302 |
|
596 |
|
597 # else |
|
598 // If the compiler is not GCC 4.0+, we assume the user is using a |
|
599 // spec-conforming TR1 implementation. |
|
600 # include <tuple> // NOLINT |
|
601 # endif // GTEST_USE_OWN_TR1_TUPLE |
|
602 |
|
603 #endif // GTEST_HAS_TR1_TUPLE |
|
604 |
|
605 // Determines whether clone(2) is supported. |
|
606 // Usually it will only be available on Linux, excluding |
|
607 // Linux on the Itanium architecture. |
|
608 // Also see http://linux.die.net/man/2/clone. |
|
609 #ifndef GTEST_HAS_CLONE |
|
610 // The user didn't tell us, so we need to figure it out. |
|
611 |
|
612 # if GTEST_OS_LINUX && !defined(__ia64__) |
|
613 # if GTEST_OS_LINUX_ANDROID |
|
614 // On Android, clone() is only available on ARM starting with Gingerbread. |
|
615 # if defined(__arm__) && __ANDROID_API__ >= 9 |
|
616 # define GTEST_HAS_CLONE 1 |
|
617 # else |
|
618 # define GTEST_HAS_CLONE 0 |
|
619 # endif |
|
620 # else |
|
621 # define GTEST_HAS_CLONE 1 |
|
622 # endif |
|
623 # else |
|
624 # define GTEST_HAS_CLONE 0 |
|
625 # endif // GTEST_OS_LINUX && !defined(__ia64__) |
|
626 |
|
627 #endif // GTEST_HAS_CLONE |
|
628 |
|
629 // Determines whether to support stream redirection. This is used to test |
|
630 // output correctness and to implement death tests. |
|
631 #ifndef GTEST_HAS_STREAM_REDIRECTION |
|
632 // By default, we assume that stream redirection is supported on all |
|
633 // platforms except known mobile ones. |
|
634 # if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_SYMBIAN |
|
635 # define GTEST_HAS_STREAM_REDIRECTION 0 |
|
636 # else |
|
637 # define GTEST_HAS_STREAM_REDIRECTION 1 |
|
638 # endif // !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_SYMBIAN |
|
639 #endif // GTEST_HAS_STREAM_REDIRECTION |
|
640 |
|
641 // Determines whether to support death tests. |
|
642 // Google Test does not support death tests for VC 7.1 and earlier as |
|
643 // abort() in a VC 7.1 application compiled as GUI in debug config |
|
644 // pops up a dialog window that cannot be suppressed programmatically. |
|
645 #if (GTEST_OS_LINUX || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS || \ |
|
646 (GTEST_OS_MAC && !GTEST_OS_IOS) || GTEST_OS_IOS_SIMULATOR || \ |
|
647 (GTEST_OS_WINDOWS_DESKTOP && _MSC_VER >= 1400) || \ |
|
648 GTEST_OS_WINDOWS_MINGW || GTEST_OS_AIX || GTEST_OS_HPUX || \ |
|
649 GTEST_OS_OPENBSD || GTEST_OS_QNX) |
|
650 # define GTEST_HAS_DEATH_TEST 1 |
|
651 # include <vector> // NOLINT |
|
652 #endif |
|
653 |
|
654 // We don't support MSVC 7.1 with exceptions disabled now. Therefore |
|
655 // all the compilers we care about are adequate for supporting |
|
656 // value-parameterized tests. |
|
657 #define GTEST_HAS_PARAM_TEST 1 |
|
658 |
|
659 // Determines whether to support type-driven tests. |
|
660 |
|
661 // Typed tests need <typeinfo> and variadic macros, which GCC, VC++ 8.0, |
|
662 // Sun Pro CC, IBM Visual Age, and HP aCC support. |
|
663 #if defined(__GNUC__) || (_MSC_VER >= 1400) || defined(__SUNPRO_CC) || \ |
|
664 defined(__IBMCPP__) || defined(__HP_aCC) |
|
665 # define GTEST_HAS_TYPED_TEST 1 |
|
666 # define GTEST_HAS_TYPED_TEST_P 1 |
|
667 #endif |
|
668 |
|
669 // Determines whether to support Combine(). This only makes sense when |
|
670 // value-parameterized tests are enabled. The implementation doesn't |
|
671 // work on Sun Studio since it doesn't understand templated conversion |
|
672 // operators. |
|
673 #if GTEST_HAS_PARAM_TEST && GTEST_HAS_TR1_TUPLE && !defined(__SUNPRO_CC) |
|
674 # define GTEST_HAS_COMBINE 1 |
|
675 #endif |
|
676 |
|
677 // Determines whether the system compiler uses UTF-16 for encoding wide strings. |
|
678 #define GTEST_WIDE_STRING_USES_UTF16_ \ |
|
679 (GTEST_OS_WINDOWS || GTEST_OS_CYGWIN || GTEST_OS_SYMBIAN || GTEST_OS_AIX) |
|
680 |
|
681 // Determines whether test results can be streamed to a socket. |
|
682 #if GTEST_OS_LINUX |
|
683 # define GTEST_CAN_STREAM_RESULTS_ 1 |
|
684 #endif |
|
685 |
|
686 // Defines some utility macros. |
|
687 |
|
688 // The GNU compiler emits a warning if nested "if" statements are followed by |
|
689 // an "else" statement and braces are not used to explicitly disambiguate the |
|
690 // "else" binding. This leads to problems with code like: |
|
691 // |
|
692 // if (gate) |
|
693 // ASSERT_*(condition) << "Some message"; |
|
694 // |
|
695 // The "switch (0) case 0:" idiom is used to suppress this. |
|
696 #ifdef __INTEL_COMPILER |
|
697 # define GTEST_AMBIGUOUS_ELSE_BLOCKER_ |
|
698 #else |
|
699 # define GTEST_AMBIGUOUS_ELSE_BLOCKER_ switch (0) case 0: default: // NOLINT |
|
700 #endif |
|
701 |
|
702 // Use this annotation at the end of a struct/class definition to |
|
703 // prevent the compiler from optimizing away instances that are never |
|
704 // used. This is useful when all interesting logic happens inside the |
|
705 // c'tor and / or d'tor. Example: |
|
706 // |
|
707 // struct Foo { |
|
708 // Foo() { ... } |
|
709 // } GTEST_ATTRIBUTE_UNUSED_; |
|
710 // |
|
711 // Also use it after a variable or parameter declaration to tell the |
|
712 // compiler the variable/parameter does not have to be used. |
|
713 #if defined(__GNUC__) && !defined(COMPILER_ICC) |
|
714 # define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused)) |
|
715 #else |
|
716 # define GTEST_ATTRIBUTE_UNUSED_ |
|
717 #endif |
|
718 |
|
719 // A macro to disallow operator= |
|
720 // This should be used in the private: declarations for a class. |
|
721 #define GTEST_DISALLOW_ASSIGN_(type)\ |
|
722 void operator=(type const &) |
|
723 |
|
724 // A macro to disallow copy constructor and operator= |
|
725 // This should be used in the private: declarations for a class. |
|
726 #define GTEST_DISALLOW_COPY_AND_ASSIGN_(type)\ |
|
727 type(type const &);\ |
|
728 GTEST_DISALLOW_ASSIGN_(type) |
|
729 |
|
730 // Tell the compiler to warn about unused return values for functions declared |
|
731 // with this macro. The macro should be used on function declarations |
|
732 // following the argument list: |
|
733 // |
|
734 // Sprocket* AllocateSprocket() GTEST_MUST_USE_RESULT_; |
|
735 #if defined(__GNUC__) && (GTEST_GCC_VER_ >= 30400) && !defined(COMPILER_ICC) |
|
736 # define GTEST_MUST_USE_RESULT_ __attribute__ ((warn_unused_result)) |
|
737 #else |
|
738 # define GTEST_MUST_USE_RESULT_ |
|
739 #endif // __GNUC__ && (GTEST_GCC_VER_ >= 30400) && !COMPILER_ICC |
|
740 |
|
741 // Determine whether the compiler supports Microsoft's Structured Exception |
|
742 // Handling. This is supported by several Windows compilers but generally |
|
743 // does not exist on any other system. |
|
744 #ifndef GTEST_HAS_SEH |
|
745 // The user didn't tell us, so we need to figure it out. |
|
746 |
|
747 # if defined(_MSC_VER) || defined(__BORLANDC__) |
|
748 // These two compilers are known to support SEH. |
|
749 # define GTEST_HAS_SEH 1 |
|
750 # else |
|
751 // Assume no SEH. |
|
752 # define GTEST_HAS_SEH 0 |
|
753 # endif |
|
754 |
|
755 #endif // GTEST_HAS_SEH |
|
756 |
|
757 #ifdef _MSC_VER |
|
758 |
|
759 # if GTEST_LINKED_AS_SHARED_LIBRARY |
|
760 # define GTEST_API_ __declspec(dllimport) |
|
761 # elif GTEST_CREATE_SHARED_LIBRARY |
|
762 # define GTEST_API_ __declspec(dllexport) |
|
763 # endif |
|
764 |
|
765 #endif // _MSC_VER |
|
766 |
|
767 #ifndef GTEST_API_ |
|
768 # define GTEST_API_ |
|
769 #endif |
|
770 |
|
771 #ifdef __GNUC__ |
|
772 // Ask the compiler to never inline a given function. |
|
773 # define GTEST_NO_INLINE_ __attribute__((noinline)) |
|
774 #else |
|
775 # define GTEST_NO_INLINE_ |
|
776 #endif |
|
777 |
|
778 // _LIBCPP_VERSION is defined by the libc++ library from the LLVM project. |
|
779 #if defined(__GLIBCXX__) || defined(_LIBCPP_VERSION) |
|
780 # define GTEST_HAS_CXXABI_H_ 1 |
|
781 #else |
|
782 # define GTEST_HAS_CXXABI_H_ 0 |
|
783 #endif |
|
784 |
|
785 namespace testing { |
|
786 |
|
787 class Message; |
|
788 |
|
789 namespace internal { |
|
790 |
|
791 // A secret type that Google Test users don't know about. It has no |
|
792 // definition on purpose. Therefore it's impossible to create a |
|
793 // Secret object, which is what we want. |
|
794 class Secret; |
|
795 |
|
796 // The GTEST_COMPILE_ASSERT_ macro can be used to verify that a compile time |
|
797 // expression is true. For example, you could use it to verify the |
|
798 // size of a static array: |
|
799 // |
|
800 // GTEST_COMPILE_ASSERT_(ARRAYSIZE(content_type_names) == CONTENT_NUM_TYPES, |
|
801 // content_type_names_incorrect_size); |
|
802 // |
|
803 // or to make sure a struct is smaller than a certain size: |
|
804 // |
|
805 // GTEST_COMPILE_ASSERT_(sizeof(foo) < 128, foo_too_large); |
|
806 // |
|
807 // The second argument to the macro is the name of the variable. If |
|
808 // the expression is false, most compilers will issue a warning/error |
|
809 // containing the name of the variable. |
|
810 |
|
811 template <bool> |
|
812 struct CompileAssert { |
|
813 }; |
|
814 |
|
815 #define GTEST_COMPILE_ASSERT_(expr, msg) \ |
|
816 typedef ::testing::internal::CompileAssert<(static_cast<bool>(expr))> \ |
|
817 msg[static_cast<bool>(expr) ? 1 : -1] GTEST_ATTRIBUTE_UNUSED_ |
|
818 |
|
819 // Implementation details of GTEST_COMPILE_ASSERT_: |
|
820 // |
|
821 // - GTEST_COMPILE_ASSERT_ works by defining an array type that has -1 |
|
822 // elements (and thus is invalid) when the expression is false. |
|
823 // |
|
824 // - The simpler definition |
|
825 // |
|
826 // #define GTEST_COMPILE_ASSERT_(expr, msg) typedef char msg[(expr) ? 1 : -1] |
|
827 // |
|
828 // does not work, as gcc supports variable-length arrays whose sizes |
|
829 // are determined at run-time (this is gcc's extension and not part |
|
830 // of the C++ standard). As a result, gcc fails to reject the |
|
831 // following code with the simple definition: |
|
832 // |
|
833 // int foo; |
|
834 // GTEST_COMPILE_ASSERT_(foo, msg); // not supposed to compile as foo is |
|
835 // // not a compile-time constant. |
|
836 // |
|
837 // - By using the type CompileAssert<(bool(expr))>, we ensures that |
|
838 // expr is a compile-time constant. (Template arguments must be |
|
839 // determined at compile-time.) |
|
840 // |
|
841 // - The outter parentheses in CompileAssert<(bool(expr))> are necessary |
|
842 // to work around a bug in gcc 3.4.4 and 4.0.1. If we had written |
|
843 // |
|
844 // CompileAssert<bool(expr)> |
|
845 // |
|
846 // instead, these compilers will refuse to compile |
|
847 // |
|
848 // GTEST_COMPILE_ASSERT_(5 > 0, some_message); |
|
849 // |
|
850 // (They seem to think the ">" in "5 > 0" marks the end of the |
|
851 // template argument list.) |
|
852 // |
|
853 // - The array size is (bool(expr) ? 1 : -1), instead of simply |
|
854 // |
|
855 // ((expr) ? 1 : -1). |
|
856 // |
|
857 // This is to avoid running into a bug in MS VC 7.1, which |
|
858 // causes ((0.0) ? 1 : -1) to incorrectly evaluate to 1. |
|
859 |
|
860 // StaticAssertTypeEqHelper is used by StaticAssertTypeEq defined in gtest.h. |
|
861 // |
|
862 // This template is declared, but intentionally undefined. |
|
863 template <typename T1, typename T2> |
|
864 struct StaticAssertTypeEqHelper; |
|
865 |
|
866 template <typename T> |
|
867 struct StaticAssertTypeEqHelper<T, T> {}; |
|
868 |
|
869 #if GTEST_HAS_GLOBAL_STRING |
|
870 typedef ::string string; |
|
871 #else |
|
872 typedef ::std::string string; |
|
873 #endif // GTEST_HAS_GLOBAL_STRING |
|
874 |
|
875 #if GTEST_HAS_GLOBAL_WSTRING |
|
876 typedef ::wstring wstring; |
|
877 #elif GTEST_HAS_STD_WSTRING |
|
878 typedef ::std::wstring wstring; |
|
879 #endif // GTEST_HAS_GLOBAL_WSTRING |
|
880 |
|
881 // A helper for suppressing warnings on constant condition. It just |
|
882 // returns 'condition'. |
|
883 GTEST_API_ bool IsTrue(bool condition); |
|
884 |
|
885 // Defines scoped_ptr. |
|
886 |
|
887 // This implementation of scoped_ptr is PARTIAL - it only contains |
|
888 // enough stuff to satisfy Google Test's need. |
|
889 template <typename T> |
|
890 class scoped_ptr { |
|
891 public: |
|
892 typedef T element_type; |
|
893 |
|
894 explicit scoped_ptr(T* p = NULL) : ptr_(p) {} |
|
895 ~scoped_ptr() { reset(); } |
|
896 |
|
897 T& operator*() const { return *ptr_; } |
|
898 T* operator->() const { return ptr_; } |
|
899 T* get() const { return ptr_; } |
|
900 |
|
901 T* release() { |
|
902 T* const ptr = ptr_; |
|
903 ptr_ = NULL; |
|
904 return ptr; |
|
905 } |
|
906 |
|
907 void reset(T* p = NULL) { |
|
908 if (p != ptr_) { |
|
909 if (IsTrue(sizeof(T) > 0)) { // Makes sure T is a complete type. |
|
910 delete ptr_; |
|
911 } |
|
912 ptr_ = p; |
|
913 } |
|
914 } |
|
915 |
|
916 private: |
|
917 T* ptr_; |
|
918 |
|
919 GTEST_DISALLOW_COPY_AND_ASSIGN_(scoped_ptr); |
|
920 }; |
|
921 |
|
922 // Defines RE. |
|
923 |
|
924 // A simple C++ wrapper for <regex.h>. It uses the POSIX Extended |
|
925 // Regular Expression syntax. |
|
926 class GTEST_API_ RE { |
|
927 public: |
|
928 // A copy constructor is required by the Standard to initialize object |
|
929 // references from r-values. |
|
930 RE(const RE& other) { Init(other.pattern()); } |
|
931 |
|
932 // Constructs an RE from a string. |
|
933 RE(const ::std::string& regex) { Init(regex.c_str()); } // NOLINT |
|
934 |
|
935 #if GTEST_HAS_GLOBAL_STRING |
|
936 |
|
937 RE(const ::string& regex) { Init(regex.c_str()); } // NOLINT |
|
938 |
|
939 #endif // GTEST_HAS_GLOBAL_STRING |
|
940 |
|
941 RE(const char* regex) { Init(regex); } // NOLINT |
|
942 ~RE(); |
|
943 |
|
944 // Returns the string representation of the regex. |
|
945 const char* pattern() const { return pattern_; } |
|
946 |
|
947 // FullMatch(str, re) returns true iff regular expression re matches |
|
948 // the entire str. |
|
949 // PartialMatch(str, re) returns true iff regular expression re |
|
950 // matches a substring of str (including str itself). |
|
951 // |
|
952 // TODO(wan@google.com): make FullMatch() and PartialMatch() work |
|
953 // when str contains NUL characters. |
|
954 static bool FullMatch(const ::std::string& str, const RE& re) { |
|
955 return FullMatch(str.c_str(), re); |
|
956 } |
|
957 static bool PartialMatch(const ::std::string& str, const RE& re) { |
|
958 return PartialMatch(str.c_str(), re); |
|
959 } |
|
960 |
|
961 #if GTEST_HAS_GLOBAL_STRING |
|
962 |
|
963 static bool FullMatch(const ::string& str, const RE& re) { |
|
964 return FullMatch(str.c_str(), re); |
|
965 } |
|
966 static bool PartialMatch(const ::string& str, const RE& re) { |
|
967 return PartialMatch(str.c_str(), re); |
|
968 } |
|
969 |
|
970 #endif // GTEST_HAS_GLOBAL_STRING |
|
971 |
|
972 static bool FullMatch(const char* str, const RE& re); |
|
973 static bool PartialMatch(const char* str, const RE& re); |
|
974 |
|
975 private: |
|
976 void Init(const char* regex); |
|
977 |
|
978 // We use a const char* instead of an std::string, as Google Test used to be |
|
979 // used where std::string is not available. TODO(wan@google.com): change to |
|
980 // std::string. |
|
981 const char* pattern_; |
|
982 bool is_valid_; |
|
983 |
|
984 #if GTEST_USES_POSIX_RE |
|
985 |
|
986 regex_t full_regex_; // For FullMatch(). |
|
987 regex_t partial_regex_; // For PartialMatch(). |
|
988 |
|
989 #else // GTEST_USES_SIMPLE_RE |
|
990 |
|
991 const char* full_pattern_; // For FullMatch(); |
|
992 |
|
993 #endif |
|
994 |
|
995 GTEST_DISALLOW_ASSIGN_(RE); |
|
996 }; |
|
997 |
|
998 // Formats a source file path and a line number as they would appear |
|
999 // in an error message from the compiler used to compile this code. |
|
1000 GTEST_API_ ::std::string FormatFileLocation(const char* file, int line); |
|
1001 |
|
1002 // Formats a file location for compiler-independent XML output. |
|
1003 // Although this function is not platform dependent, we put it next to |
|
1004 // FormatFileLocation in order to contrast the two functions. |
|
1005 GTEST_API_ ::std::string FormatCompilerIndependentFileLocation(const char* file, |
|
1006 int line); |
|
1007 |
|
1008 // Defines logging utilities: |
|
1009 // GTEST_LOG_(severity) - logs messages at the specified severity level. The |
|
1010 // message itself is streamed into the macro. |
|
1011 // LogToStderr() - directs all log messages to stderr. |
|
1012 // FlushInfoLog() - flushes informational log messages. |
|
1013 |
|
1014 enum GTestLogSeverity { |
|
1015 GTEST_INFO, |
|
1016 GTEST_WARNING, |
|
1017 GTEST_ERROR, |
|
1018 GTEST_FATAL |
|
1019 }; |
|
1020 |
|
1021 // Formats log entry severity, provides a stream object for streaming the |
|
1022 // log message, and terminates the message with a newline when going out of |
|
1023 // scope. |
|
1024 class GTEST_API_ GTestLog { |
|
1025 public: |
|
1026 GTestLog(GTestLogSeverity severity, const char* file, int line); |
|
1027 |
|
1028 // Flushes the buffers and, if severity is GTEST_FATAL, aborts the program. |
|
1029 ~GTestLog(); |
|
1030 |
|
1031 ::std::ostream& GetStream() { return ::std::cerr; } |
|
1032 |
|
1033 private: |
|
1034 const GTestLogSeverity severity_; |
|
1035 |
|
1036 GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestLog); |
|
1037 }; |
|
1038 |
|
1039 #define GTEST_LOG_(severity) \ |
|
1040 ::testing::internal::GTestLog(::testing::internal::GTEST_##severity, \ |
|
1041 __FILE__, __LINE__).GetStream() |
|
1042 |
|
1043 inline void LogToStderr() {} |
|
1044 inline void FlushInfoLog() { fflush(NULL); } |
|
1045 |
|
1046 // INTERNAL IMPLEMENTATION - DO NOT USE. |
|
1047 // |
|
1048 // GTEST_CHECK_ is an all-mode assert. It aborts the program if the condition |
|
1049 // is not satisfied. |
|
1050 // Synopsys: |
|
1051 // GTEST_CHECK_(boolean_condition); |
|
1052 // or |
|
1053 // GTEST_CHECK_(boolean_condition) << "Additional message"; |
|
1054 // |
|
1055 // This checks the condition and if the condition is not satisfied |
|
1056 // it prints message about the condition violation, including the |
|
1057 // condition itself, plus additional message streamed into it, if any, |
|
1058 // and then it aborts the program. It aborts the program irrespective of |
|
1059 // whether it is built in the debug mode or not. |
|
1060 #define GTEST_CHECK_(condition) \ |
|
1061 GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ |
|
1062 if (::testing::internal::IsTrue(condition)) \ |
|
1063 ; \ |
|
1064 else \ |
|
1065 GTEST_LOG_(FATAL) << "Condition " #condition " failed. " |
|
1066 |
|
1067 // An all-mode assert to verify that the given POSIX-style function |
|
1068 // call returns 0 (indicating success). Known limitation: this |
|
1069 // doesn't expand to a balanced 'if' statement, so enclose the macro |
|
1070 // in {} if you need to use it as the only statement in an 'if' |
|
1071 // branch. |
|
1072 #define GTEST_CHECK_POSIX_SUCCESS_(posix_call) \ |
|
1073 if (const int gtest_error = (posix_call)) \ |
|
1074 GTEST_LOG_(FATAL) << #posix_call << "failed with error " \ |
|
1075 << gtest_error |
|
1076 |
|
1077 // INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE. |
|
1078 // |
|
1079 // Use ImplicitCast_ as a safe version of static_cast for upcasting in |
|
1080 // the type hierarchy (e.g. casting a Foo* to a SuperclassOfFoo* or a |
|
1081 // const Foo*). When you use ImplicitCast_, the compiler checks that |
|
1082 // the cast is safe. Such explicit ImplicitCast_s are necessary in |
|
1083 // surprisingly many situations where C++ demands an exact type match |
|
1084 // instead of an argument type convertable to a target type. |
|
1085 // |
|
1086 // The syntax for using ImplicitCast_ is the same as for static_cast: |
|
1087 // |
|
1088 // ImplicitCast_<ToType>(expr) |
|
1089 // |
|
1090 // ImplicitCast_ would have been part of the C++ standard library, |
|
1091 // but the proposal was submitted too late. It will probably make |
|
1092 // its way into the language in the future. |
|
1093 // |
|
1094 // This relatively ugly name is intentional. It prevents clashes with |
|
1095 // similar functions users may have (e.g., implicit_cast). The internal |
|
1096 // namespace alone is not enough because the function can be found by ADL. |
|
1097 template<typename To> |
|
1098 inline To ImplicitCast_(To x) { return x; } |
|
1099 |
|
1100 // When you upcast (that is, cast a pointer from type Foo to type |
|
1101 // SuperclassOfFoo), it's fine to use ImplicitCast_<>, since upcasts |
|
1102 // always succeed. When you downcast (that is, cast a pointer from |
|
1103 // type Foo to type SubclassOfFoo), static_cast<> isn't safe, because |
|
1104 // how do you know the pointer is really of type SubclassOfFoo? It |
|
1105 // could be a bare Foo, or of type DifferentSubclassOfFoo. Thus, |
|
1106 // when you downcast, you should use this macro. In debug mode, we |
|
1107 // use dynamic_cast<> to double-check the downcast is legal (we die |
|
1108 // if it's not). In normal mode, we do the efficient static_cast<> |
|
1109 // instead. Thus, it's important to test in debug mode to make sure |
|
1110 // the cast is legal! |
|
1111 // This is the only place in the code we should use dynamic_cast<>. |
|
1112 // In particular, you SHOULDN'T be using dynamic_cast<> in order to |
|
1113 // do RTTI (eg code like this: |
|
1114 // if (dynamic_cast<Subclass1>(foo)) HandleASubclass1Object(foo); |
|
1115 // if (dynamic_cast<Subclass2>(foo)) HandleASubclass2Object(foo); |
|
1116 // You should design the code some other way not to need this. |
|
1117 // |
|
1118 // This relatively ugly name is intentional. It prevents clashes with |
|
1119 // similar functions users may have (e.g., down_cast). The internal |
|
1120 // namespace alone is not enough because the function can be found by ADL. |
|
1121 template<typename To, typename From> // use like this: DownCast_<T*>(foo); |
|
1122 inline To DownCast_(From* f) { // so we only accept pointers |
|
1123 // Ensures that To is a sub-type of From *. This test is here only |
|
1124 // for compile-time type checking, and has no overhead in an |
|
1125 // optimized build at run-time, as it will be optimized away |
|
1126 // completely. |
|
1127 if (false) { |
|
1128 const To to = NULL; |
|
1129 ::testing::internal::ImplicitCast_<From*>(to); |
|
1130 } |
|
1131 |
|
1132 #if GTEST_HAS_RTTI |
|
1133 // RTTI: debug mode only! |
|
1134 GTEST_CHECK_(f == NULL || dynamic_cast<To>(f) != NULL); |
|
1135 #endif |
|
1136 return static_cast<To>(f); |
|
1137 } |
|
1138 |
|
1139 // Downcasts the pointer of type Base to Derived. |
|
1140 // Derived must be a subclass of Base. The parameter MUST |
|
1141 // point to a class of type Derived, not any subclass of it. |
|
1142 // When RTTI is available, the function performs a runtime |
|
1143 // check to enforce this. |
|
1144 template <class Derived, class Base> |
|
1145 Derived* CheckedDowncastToActualType(Base* base) { |
|
1146 #if GTEST_HAS_RTTI |
|
1147 GTEST_CHECK_(typeid(*base) == typeid(Derived)); |
|
1148 return dynamic_cast<Derived*>(base); // NOLINT |
|
1149 #else |
|
1150 return static_cast<Derived*>(base); // Poor man's downcast. |
|
1151 #endif |
|
1152 } |
|
1153 |
|
1154 #if GTEST_HAS_STREAM_REDIRECTION |
|
1155 |
|
1156 // Defines the stderr capturer: |
|
1157 // CaptureStdout - starts capturing stdout. |
|
1158 // GetCapturedStdout - stops capturing stdout and returns the captured string. |
|
1159 // CaptureStderr - starts capturing stderr. |
|
1160 // GetCapturedStderr - stops capturing stderr and returns the captured string. |
|
1161 // |
|
1162 GTEST_API_ void CaptureStdout(); |
|
1163 GTEST_API_ std::string GetCapturedStdout(); |
|
1164 GTEST_API_ void CaptureStderr(); |
|
1165 GTEST_API_ std::string GetCapturedStderr(); |
|
1166 |
|
1167 #endif // GTEST_HAS_STREAM_REDIRECTION |
|
1168 |
|
1169 |
|
1170 #if GTEST_HAS_DEATH_TEST |
|
1171 |
|
1172 const ::std::vector<testing::internal::string>& GetInjectableArgvs(); |
|
1173 void SetInjectableArgvs(const ::std::vector<testing::internal::string>* |
|
1174 new_argvs); |
|
1175 |
|
1176 // A copy of all command line arguments. Set by InitGoogleTest(). |
|
1177 extern ::std::vector<testing::internal::string> g_argvs; |
|
1178 |
|
1179 #endif // GTEST_HAS_DEATH_TEST |
|
1180 |
|
1181 // Defines synchronization primitives. |
|
1182 |
|
1183 #if GTEST_HAS_PTHREAD |
|
1184 |
|
1185 // Sleeps for (roughly) n milli-seconds. This function is only for |
|
1186 // testing Google Test's own constructs. Don't use it in user tests, |
|
1187 // either directly or indirectly. |
|
1188 inline void SleepMilliseconds(int n) { |
|
1189 const timespec time = { |
|
1190 0, // 0 seconds. |
|
1191 n * 1000L * 1000L, // And n ms. |
|
1192 }; |
|
1193 nanosleep(&time, NULL); |
|
1194 } |
|
1195 |
|
1196 // Allows a controller thread to pause execution of newly created |
|
1197 // threads until notified. Instances of this class must be created |
|
1198 // and destroyed in the controller thread. |
|
1199 // |
|
1200 // This class is only for testing Google Test's own constructs. Do not |
|
1201 // use it in user tests, either directly or indirectly. |
|
1202 class Notification { |
|
1203 public: |
|
1204 Notification() : notified_(false) { |
|
1205 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_init(&mutex_, NULL)); |
|
1206 } |
|
1207 ~Notification() { |
|
1208 pthread_mutex_destroy(&mutex_); |
|
1209 } |
|
1210 |
|
1211 // Notifies all threads created with this notification to start. Must |
|
1212 // be called from the controller thread. |
|
1213 void Notify() { |
|
1214 pthread_mutex_lock(&mutex_); |
|
1215 notified_ = true; |
|
1216 pthread_mutex_unlock(&mutex_); |
|
1217 } |
|
1218 |
|
1219 // Blocks until the controller thread notifies. Must be called from a test |
|
1220 // thread. |
|
1221 void WaitForNotification() { |
|
1222 for (;;) { |
|
1223 pthread_mutex_lock(&mutex_); |
|
1224 const bool notified = notified_; |
|
1225 pthread_mutex_unlock(&mutex_); |
|
1226 if (notified) |
|
1227 break; |
|
1228 SleepMilliseconds(10); |
|
1229 } |
|
1230 } |
|
1231 |
|
1232 private: |
|
1233 pthread_mutex_t mutex_; |
|
1234 bool notified_; |
|
1235 |
|
1236 GTEST_DISALLOW_COPY_AND_ASSIGN_(Notification); |
|
1237 }; |
|
1238 |
|
1239 // As a C-function, ThreadFuncWithCLinkage cannot be templated itself. |
|
1240 // Consequently, it cannot select a correct instantiation of ThreadWithParam |
|
1241 // in order to call its Run(). Introducing ThreadWithParamBase as a |
|
1242 // non-templated base class for ThreadWithParam allows us to bypass this |
|
1243 // problem. |
|
1244 class ThreadWithParamBase { |
|
1245 public: |
|
1246 virtual ~ThreadWithParamBase() {} |
|
1247 virtual void Run() = 0; |
|
1248 }; |
|
1249 |
|
1250 // pthread_create() accepts a pointer to a function type with the C linkage. |
|
1251 // According to the Standard (7.5/1), function types with different linkages |
|
1252 // are different even if they are otherwise identical. Some compilers (for |
|
1253 // example, SunStudio) treat them as different types. Since class methods |
|
1254 // cannot be defined with C-linkage we need to define a free C-function to |
|
1255 // pass into pthread_create(). |
|
1256 extern "C" inline void* ThreadFuncWithCLinkage(void* thread) { |
|
1257 static_cast<ThreadWithParamBase*>(thread)->Run(); |
|
1258 return NULL; |
|
1259 } |
|
1260 |
|
1261 // Helper class for testing Google Test's multi-threading constructs. |
|
1262 // To use it, write: |
|
1263 // |
|
1264 // void ThreadFunc(int param) { /* Do things with param */ } |
|
1265 // Notification thread_can_start; |
|
1266 // ... |
|
1267 // // The thread_can_start parameter is optional; you can supply NULL. |
|
1268 // ThreadWithParam<int> thread(&ThreadFunc, 5, &thread_can_start); |
|
1269 // thread_can_start.Notify(); |
|
1270 // |
|
1271 // These classes are only for testing Google Test's own constructs. Do |
|
1272 // not use them in user tests, either directly or indirectly. |
|
1273 template <typename T> |
|
1274 class ThreadWithParam : public ThreadWithParamBase { |
|
1275 public: |
|
1276 typedef void (*UserThreadFunc)(T); |
|
1277 |
|
1278 ThreadWithParam( |
|
1279 UserThreadFunc func, T param, Notification* thread_can_start) |
|
1280 : func_(func), |
|
1281 param_(param), |
|
1282 thread_can_start_(thread_can_start), |
|
1283 finished_(false) { |
|
1284 ThreadWithParamBase* const base = this; |
|
1285 // The thread can be created only after all fields except thread_ |
|
1286 // have been initialized. |
|
1287 GTEST_CHECK_POSIX_SUCCESS_( |
|
1288 pthread_create(&thread_, 0, &ThreadFuncWithCLinkage, base)); |
|
1289 } |
|
1290 ~ThreadWithParam() { Join(); } |
|
1291 |
|
1292 void Join() { |
|
1293 if (!finished_) { |
|
1294 GTEST_CHECK_POSIX_SUCCESS_(pthread_join(thread_, 0)); |
|
1295 finished_ = true; |
|
1296 } |
|
1297 } |
|
1298 |
|
1299 virtual void Run() { |
|
1300 if (thread_can_start_ != NULL) |
|
1301 thread_can_start_->WaitForNotification(); |
|
1302 func_(param_); |
|
1303 } |
|
1304 |
|
1305 private: |
|
1306 const UserThreadFunc func_; // User-supplied thread function. |
|
1307 const T param_; // User-supplied parameter to the thread function. |
|
1308 // When non-NULL, used to block execution until the controller thread |
|
1309 // notifies. |
|
1310 Notification* const thread_can_start_; |
|
1311 bool finished_; // true iff we know that the thread function has finished. |
|
1312 pthread_t thread_; // The native thread object. |
|
1313 |
|
1314 GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadWithParam); |
|
1315 }; |
|
1316 |
|
1317 // MutexBase and Mutex implement mutex on pthreads-based platforms. They |
|
1318 // are used in conjunction with class MutexLock: |
|
1319 // |
|
1320 // Mutex mutex; |
|
1321 // ... |
|
1322 // MutexLock lock(&mutex); // Acquires the mutex and releases it at the end |
|
1323 // // of the current scope. |
|
1324 // |
|
1325 // MutexBase implements behavior for both statically and dynamically |
|
1326 // allocated mutexes. Do not use MutexBase directly. Instead, write |
|
1327 // the following to define a static mutex: |
|
1328 // |
|
1329 // GTEST_DEFINE_STATIC_MUTEX_(g_some_mutex); |
|
1330 // |
|
1331 // You can forward declare a static mutex like this: |
|
1332 // |
|
1333 // GTEST_DECLARE_STATIC_MUTEX_(g_some_mutex); |
|
1334 // |
|
1335 // To create a dynamic mutex, just define an object of type Mutex. |
|
1336 class MutexBase { |
|
1337 public: |
|
1338 // Acquires this mutex. |
|
1339 void Lock() { |
|
1340 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_lock(&mutex_)); |
|
1341 owner_ = pthread_self(); |
|
1342 has_owner_ = true; |
|
1343 } |
|
1344 |
|
1345 // Releases this mutex. |
|
1346 void Unlock() { |
|
1347 // Since the lock is being released the owner_ field should no longer be |
|
1348 // considered valid. We don't protect writing to has_owner_ here, as it's |
|
1349 // the caller's responsibility to ensure that the current thread holds the |
|
1350 // mutex when this is called. |
|
1351 has_owner_ = false; |
|
1352 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_unlock(&mutex_)); |
|
1353 } |
|
1354 |
|
1355 // Does nothing if the current thread holds the mutex. Otherwise, crashes |
|
1356 // with high probability. |
|
1357 void AssertHeld() const { |
|
1358 GTEST_CHECK_(has_owner_ && pthread_equal(owner_, pthread_self())) |
|
1359 << "The current thread is not holding the mutex @" << this; |
|
1360 } |
|
1361 |
|
1362 // A static mutex may be used before main() is entered. It may even |
|
1363 // be used before the dynamic initialization stage. Therefore we |
|
1364 // must be able to initialize a static mutex object at link time. |
|
1365 // This means MutexBase has to be a POD and its member variables |
|
1366 // have to be public. |
|
1367 public: |
|
1368 pthread_mutex_t mutex_; // The underlying pthread mutex. |
|
1369 // has_owner_ indicates whether the owner_ field below contains a valid thread |
|
1370 // ID and is therefore safe to inspect (e.g., to use in pthread_equal()). All |
|
1371 // accesses to the owner_ field should be protected by a check of this field. |
|
1372 // An alternative might be to memset() owner_ to all zeros, but there's no |
|
1373 // guarantee that a zero'd pthread_t is necessarily invalid or even different |
|
1374 // from pthread_self(). |
|
1375 bool has_owner_; |
|
1376 pthread_t owner_; // The thread holding the mutex. |
|
1377 }; |
|
1378 |
|
1379 // Forward-declares a static mutex. |
|
1380 # define GTEST_DECLARE_STATIC_MUTEX_(mutex) \ |
|
1381 extern ::testing::internal::MutexBase mutex |
|
1382 |
|
1383 // Defines and statically (i.e. at link time) initializes a static mutex. |
|
1384 // The initialization list here does not explicitly initialize each field, |
|
1385 // instead relying on default initialization for the unspecified fields. In |
|
1386 // particular, the owner_ field (a pthread_t) is not explicitly initialized. |
|
1387 // This allows initialization to work whether pthread_t is a scalar or struct. |
|
1388 // The flag -Wmissing-field-initializers must not be specified for this to work. |
|
1389 # define GTEST_DEFINE_STATIC_MUTEX_(mutex) \ |
|
1390 ::testing::internal::MutexBase mutex = { PTHREAD_MUTEX_INITIALIZER, false } |
|
1391 |
|
1392 // The Mutex class can only be used for mutexes created at runtime. It |
|
1393 // shares its API with MutexBase otherwise. |
|
1394 class Mutex : public MutexBase { |
|
1395 public: |
|
1396 Mutex() { |
|
1397 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_init(&mutex_, NULL)); |
|
1398 has_owner_ = false; |
|
1399 } |
|
1400 ~Mutex() { |
|
1401 GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_destroy(&mutex_)); |
|
1402 } |
|
1403 |
|
1404 private: |
|
1405 GTEST_DISALLOW_COPY_AND_ASSIGN_(Mutex); |
|
1406 }; |
|
1407 |
|
1408 // We cannot name this class MutexLock as the ctor declaration would |
|
1409 // conflict with a macro named MutexLock, which is defined on some |
|
1410 // platforms. Hence the typedef trick below. |
|
1411 class GTestMutexLock { |
|
1412 public: |
|
1413 explicit GTestMutexLock(MutexBase* mutex) |
|
1414 : mutex_(mutex) { mutex_->Lock(); } |
|
1415 |
|
1416 ~GTestMutexLock() { mutex_->Unlock(); } |
|
1417 |
|
1418 private: |
|
1419 MutexBase* const mutex_; |
|
1420 |
|
1421 GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestMutexLock); |
|
1422 }; |
|
1423 |
|
1424 typedef GTestMutexLock MutexLock; |
|
1425 |
|
1426 // Helpers for ThreadLocal. |
|
1427 |
|
1428 // pthread_key_create() requires DeleteThreadLocalValue() to have |
|
1429 // C-linkage. Therefore it cannot be templatized to access |
|
1430 // ThreadLocal<T>. Hence the need for class |
|
1431 // ThreadLocalValueHolderBase. |
|
1432 class ThreadLocalValueHolderBase { |
|
1433 public: |
|
1434 virtual ~ThreadLocalValueHolderBase() {} |
|
1435 }; |
|
1436 |
|
1437 // Called by pthread to delete thread-local data stored by |
|
1438 // pthread_setspecific(). |
|
1439 extern "C" inline void DeleteThreadLocalValue(void* value_holder) { |
|
1440 delete static_cast<ThreadLocalValueHolderBase*>(value_holder); |
|
1441 } |
|
1442 |
|
1443 // Implements thread-local storage on pthreads-based systems. |
|
1444 // |
|
1445 // // Thread 1 |
|
1446 // ThreadLocal<int> tl(100); // 100 is the default value for each thread. |
|
1447 // |
|
1448 // // Thread 2 |
|
1449 // tl.set(150); // Changes the value for thread 2 only. |
|
1450 // EXPECT_EQ(150, tl.get()); |
|
1451 // |
|
1452 // // Thread 1 |
|
1453 // EXPECT_EQ(100, tl.get()); // In thread 1, tl has the original value. |
|
1454 // tl.set(200); |
|
1455 // EXPECT_EQ(200, tl.get()); |
|
1456 // |
|
1457 // The template type argument T must have a public copy constructor. |
|
1458 // In addition, the default ThreadLocal constructor requires T to have |
|
1459 // a public default constructor. |
|
1460 // |
|
1461 // An object managed for a thread by a ThreadLocal instance is deleted |
|
1462 // when the thread exits. Or, if the ThreadLocal instance dies in |
|
1463 // that thread, when the ThreadLocal dies. It's the user's |
|
1464 // responsibility to ensure that all other threads using a ThreadLocal |
|
1465 // have exited when it dies, or the per-thread objects for those |
|
1466 // threads will not be deleted. |
|
1467 // |
|
1468 // Google Test only uses global ThreadLocal objects. That means they |
|
1469 // will die after main() has returned. Therefore, no per-thread |
|
1470 // object managed by Google Test will be leaked as long as all threads |
|
1471 // using Google Test have exited when main() returns. |
|
1472 template <typename T> |
|
1473 class ThreadLocal { |
|
1474 public: |
|
1475 ThreadLocal() : key_(CreateKey()), |
|
1476 default_() {} |
|
1477 explicit ThreadLocal(const T& value) : key_(CreateKey()), |
|
1478 default_(value) {} |
|
1479 |
|
1480 ~ThreadLocal() { |
|
1481 // Destroys the managed object for the current thread, if any. |
|
1482 DeleteThreadLocalValue(pthread_getspecific(key_)); |
|
1483 |
|
1484 // Releases resources associated with the key. This will *not* |
|
1485 // delete managed objects for other threads. |
|
1486 GTEST_CHECK_POSIX_SUCCESS_(pthread_key_delete(key_)); |
|
1487 } |
|
1488 |
|
1489 T* pointer() { return GetOrCreateValue(); } |
|
1490 const T* pointer() const { return GetOrCreateValue(); } |
|
1491 const T& get() const { return *pointer(); } |
|
1492 void set(const T& value) { *pointer() = value; } |
|
1493 |
|
1494 private: |
|
1495 // Holds a value of type T. |
|
1496 class ValueHolder : public ThreadLocalValueHolderBase { |
|
1497 public: |
|
1498 explicit ValueHolder(const T& value) : value_(value) {} |
|
1499 |
|
1500 T* pointer() { return &value_; } |
|
1501 |
|
1502 private: |
|
1503 T value_; |
|
1504 GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolder); |
|
1505 }; |
|
1506 |
|
1507 static pthread_key_t CreateKey() { |
|
1508 pthread_key_t key; |
|
1509 // When a thread exits, DeleteThreadLocalValue() will be called on |
|
1510 // the object managed for that thread. |
|
1511 GTEST_CHECK_POSIX_SUCCESS_( |
|
1512 pthread_key_create(&key, &DeleteThreadLocalValue)); |
|
1513 return key; |
|
1514 } |
|
1515 |
|
1516 T* GetOrCreateValue() const { |
|
1517 ThreadLocalValueHolderBase* const holder = |
|
1518 static_cast<ThreadLocalValueHolderBase*>(pthread_getspecific(key_)); |
|
1519 if (holder != NULL) { |
|
1520 return CheckedDowncastToActualType<ValueHolder>(holder)->pointer(); |
|
1521 } |
|
1522 |
|
1523 ValueHolder* const new_holder = new ValueHolder(default_); |
|
1524 ThreadLocalValueHolderBase* const holder_base = new_holder; |
|
1525 GTEST_CHECK_POSIX_SUCCESS_(pthread_setspecific(key_, holder_base)); |
|
1526 return new_holder->pointer(); |
|
1527 } |
|
1528 |
|
1529 // A key pthreads uses for looking up per-thread values. |
|
1530 const pthread_key_t key_; |
|
1531 const T default_; // The default value for each thread. |
|
1532 |
|
1533 GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocal); |
|
1534 }; |
|
1535 |
|
1536 # define GTEST_IS_THREADSAFE 1 |
|
1537 |
|
1538 #else // GTEST_HAS_PTHREAD |
|
1539 |
|
1540 // A dummy implementation of synchronization primitives (mutex, lock, |
|
1541 // and thread-local variable). Necessary for compiling Google Test where |
|
1542 // mutex is not supported - using Google Test in multiple threads is not |
|
1543 // supported on such platforms. |
|
1544 |
|
1545 class Mutex { |
|
1546 public: |
|
1547 Mutex() {} |
|
1548 void Lock() {} |
|
1549 void Unlock() {} |
|
1550 void AssertHeld() const {} |
|
1551 }; |
|
1552 |
|
1553 # define GTEST_DECLARE_STATIC_MUTEX_(mutex) \ |
|
1554 extern ::testing::internal::Mutex mutex |
|
1555 |
|
1556 # define GTEST_DEFINE_STATIC_MUTEX_(mutex) ::testing::internal::Mutex mutex |
|
1557 |
|
1558 class GTestMutexLock { |
|
1559 public: |
|
1560 explicit GTestMutexLock(Mutex*) {} // NOLINT |
|
1561 }; |
|
1562 |
|
1563 typedef GTestMutexLock MutexLock; |
|
1564 |
|
1565 template <typename T> |
|
1566 class ThreadLocal { |
|
1567 public: |
|
1568 ThreadLocal() : value_() {} |
|
1569 explicit ThreadLocal(const T& value) : value_(value) {} |
|
1570 T* pointer() { return &value_; } |
|
1571 const T* pointer() const { return &value_; } |
|
1572 const T& get() const { return value_; } |
|
1573 void set(const T& value) { value_ = value; } |
|
1574 private: |
|
1575 T value_; |
|
1576 }; |
|
1577 |
|
1578 // The above synchronization primitives have dummy implementations. |
|
1579 // Therefore Google Test is not thread-safe. |
|
1580 # define GTEST_IS_THREADSAFE 0 |
|
1581 |
|
1582 #endif // GTEST_HAS_PTHREAD |
|
1583 |
|
1584 // Returns the number of threads running in the process, or 0 to indicate that |
|
1585 // we cannot detect it. |
|
1586 GTEST_API_ size_t GetThreadCount(); |
|
1587 |
|
1588 // Passing non-POD classes through ellipsis (...) crashes the ARM |
|
1589 // compiler and generates a warning in Sun Studio. The Nokia Symbian |
|
1590 // and the IBM XL C/C++ compiler try to instantiate a copy constructor |
|
1591 // for objects passed through ellipsis (...), failing for uncopyable |
|
1592 // objects. We define this to ensure that only POD is passed through |
|
1593 // ellipsis on these systems. |
|
1594 #if defined(__SYMBIAN32__) || defined(__IBMCPP__) || defined(__SUNPRO_CC) |
|
1595 // We lose support for NULL detection where the compiler doesn't like |
|
1596 // passing non-POD classes through ellipsis (...). |
|
1597 # define GTEST_ELLIPSIS_NEEDS_POD_ 1 |
|
1598 #else |
|
1599 # define GTEST_CAN_COMPARE_NULL 1 |
|
1600 #endif |
|
1601 |
|
1602 // The Nokia Symbian and IBM XL C/C++ compilers cannot decide between |
|
1603 // const T& and const T* in a function template. These compilers |
|
1604 // _can_ decide between class template specializations for T and T*, |
|
1605 // so a tr1::type_traits-like is_pointer works. |
|
1606 #if defined(__SYMBIAN32__) || defined(__IBMCPP__) |
|
1607 # define GTEST_NEEDS_IS_POINTER_ 1 |
|
1608 #endif |
|
1609 |
|
1610 template <bool bool_value> |
|
1611 struct bool_constant { |
|
1612 typedef bool_constant<bool_value> type; |
|
1613 static const bool value = bool_value; |
|
1614 }; |
|
1615 template <bool bool_value> const bool bool_constant<bool_value>::value; |
|
1616 |
|
1617 typedef bool_constant<false> false_type; |
|
1618 typedef bool_constant<true> true_type; |
|
1619 |
|
1620 template <typename T> |
|
1621 struct is_pointer : public false_type {}; |
|
1622 |
|
1623 template <typename T> |
|
1624 struct is_pointer<T*> : public true_type {}; |
|
1625 |
|
1626 template <typename Iterator> |
|
1627 struct IteratorTraits { |
|
1628 typedef typename Iterator::value_type value_type; |
|
1629 }; |
|
1630 |
|
1631 template <typename T> |
|
1632 struct IteratorTraits<T*> { |
|
1633 typedef T value_type; |
|
1634 }; |
|
1635 |
|
1636 template <typename T> |
|
1637 struct IteratorTraits<const T*> { |
|
1638 typedef T value_type; |
|
1639 }; |
|
1640 |
|
1641 #if GTEST_OS_WINDOWS |
|
1642 # define GTEST_PATH_SEP_ "\\" |
|
1643 # define GTEST_HAS_ALT_PATH_SEP_ 1 |
|
1644 // The biggest signed integer type the compiler supports. |
|
1645 typedef __int64 BiggestInt; |
|
1646 #else |
|
1647 # define GTEST_PATH_SEP_ "/" |
|
1648 # define GTEST_HAS_ALT_PATH_SEP_ 0 |
|
1649 typedef long long BiggestInt; // NOLINT |
|
1650 #endif // GTEST_OS_WINDOWS |
|
1651 |
|
1652 // Utilities for char. |
|
1653 |
|
1654 // isspace(int ch) and friends accept an unsigned char or EOF. char |
|
1655 // may be signed, depending on the compiler (or compiler flags). |
|
1656 // Therefore we need to cast a char to unsigned char before calling |
|
1657 // isspace(), etc. |
|
1658 |
|
1659 inline bool IsAlpha(char ch) { |
|
1660 return isalpha(static_cast<unsigned char>(ch)) != 0; |
|
1661 } |
|
1662 inline bool IsAlNum(char ch) { |
|
1663 return isalnum(static_cast<unsigned char>(ch)) != 0; |
|
1664 } |
|
1665 inline bool IsDigit(char ch) { |
|
1666 return isdigit(static_cast<unsigned char>(ch)) != 0; |
|
1667 } |
|
1668 inline bool IsLower(char ch) { |
|
1669 return islower(static_cast<unsigned char>(ch)) != 0; |
|
1670 } |
|
1671 inline bool IsSpace(char ch) { |
|
1672 return isspace(static_cast<unsigned char>(ch)) != 0; |
|
1673 } |
|
1674 inline bool IsUpper(char ch) { |
|
1675 return isupper(static_cast<unsigned char>(ch)) != 0; |
|
1676 } |
|
1677 inline bool IsXDigit(char ch) { |
|
1678 return isxdigit(static_cast<unsigned char>(ch)) != 0; |
|
1679 } |
|
1680 inline bool IsXDigit(wchar_t ch) { |
|
1681 const unsigned char low_byte = static_cast<unsigned char>(ch); |
|
1682 return ch == low_byte && isxdigit(low_byte) != 0; |
|
1683 } |
|
1684 |
|
1685 inline char ToLower(char ch) { |
|
1686 return static_cast<char>(tolower(static_cast<unsigned char>(ch))); |
|
1687 } |
|
1688 inline char ToUpper(char ch) { |
|
1689 return static_cast<char>(toupper(static_cast<unsigned char>(ch))); |
|
1690 } |
|
1691 |
|
1692 // The testing::internal::posix namespace holds wrappers for common |
|
1693 // POSIX functions. These wrappers hide the differences between |
|
1694 // Windows/MSVC and POSIX systems. Since some compilers define these |
|
1695 // standard functions as macros, the wrapper cannot have the same name |
|
1696 // as the wrapped function. |
|
1697 |
|
1698 namespace posix { |
|
1699 |
|
1700 // Functions with a different name on Windows. |
|
1701 |
|
1702 #if GTEST_OS_WINDOWS |
|
1703 |
|
1704 typedef struct _stat StatStruct; |
|
1705 |
|
1706 # ifdef __BORLANDC__ |
|
1707 inline int IsATTY(int fd) { return isatty(fd); } |
|
1708 inline int StrCaseCmp(const char* s1, const char* s2) { |
|
1709 return stricmp(s1, s2); |
|
1710 } |
|
1711 inline char* StrDup(const char* src) { return strdup(src); } |
|
1712 # else // !__BORLANDC__ |
|
1713 # if GTEST_OS_WINDOWS_MOBILE |
|
1714 inline int IsATTY(int /* fd */) { return 0; } |
|
1715 # else |
|
1716 inline int IsATTY(int fd) { return _isatty(fd); } |
|
1717 # endif // GTEST_OS_WINDOWS_MOBILE |
|
1718 inline int StrCaseCmp(const char* s1, const char* s2) { |
|
1719 return _stricmp(s1, s2); |
|
1720 } |
|
1721 inline char* StrDup(const char* src) { return _strdup(src); } |
|
1722 # endif // __BORLANDC__ |
|
1723 |
|
1724 # if GTEST_OS_WINDOWS_MOBILE |
|
1725 inline int FileNo(FILE* file) { return reinterpret_cast<int>(_fileno(file)); } |
|
1726 // Stat(), RmDir(), and IsDir() are not needed on Windows CE at this |
|
1727 // time and thus not defined there. |
|
1728 # else |
|
1729 inline int FileNo(FILE* file) { return _fileno(file); } |
|
1730 inline int Stat(const char* path, StatStruct* buf) { return _stat(path, buf); } |
|
1731 inline int RmDir(const char* dir) { return _rmdir(dir); } |
|
1732 inline bool IsDir(const StatStruct& st) { |
|
1733 return (_S_IFDIR & st.st_mode) != 0; |
|
1734 } |
|
1735 # endif // GTEST_OS_WINDOWS_MOBILE |
|
1736 |
|
1737 #else |
|
1738 |
|
1739 typedef struct stat StatStruct; |
|
1740 |
|
1741 inline int FileNo(FILE* file) { return fileno(file); } |
|
1742 inline int IsATTY(int fd) { return isatty(fd); } |
|
1743 inline int Stat(const char* path, StatStruct* buf) { return stat(path, buf); } |
|
1744 inline int StrCaseCmp(const char* s1, const char* s2) { |
|
1745 return strcasecmp(s1, s2); |
|
1746 } |
|
1747 inline char* StrDup(const char* src) { return strdup(src); } |
|
1748 inline int RmDir(const char* dir) { return rmdir(dir); } |
|
1749 inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); } |
|
1750 |
|
1751 #endif // GTEST_OS_WINDOWS |
|
1752 |
|
1753 // Functions deprecated by MSVC 8.0. |
|
1754 |
|
1755 #ifdef _MSC_VER |
|
1756 // Temporarily disable warning 4996 (deprecated function). |
|
1757 # pragma warning(push) |
|
1758 # pragma warning(disable:4996) |
|
1759 #endif |
|
1760 |
|
1761 inline const char* StrNCpy(char* dest, const char* src, size_t n) { |
|
1762 return strncpy(dest, src, n); |
|
1763 } |
|
1764 |
|
1765 // ChDir(), FReopen(), FDOpen(), Read(), Write(), Close(), and |
|
1766 // StrError() aren't needed on Windows CE at this time and thus not |
|
1767 // defined there. |
|
1768 |
|
1769 #if !GTEST_OS_WINDOWS_MOBILE |
|
1770 inline int ChDir(const char* dir) { return chdir(dir); } |
|
1771 #endif |
|
1772 inline FILE* FOpen(const char* path, const char* mode) { |
|
1773 return fopen(path, mode); |
|
1774 } |
|
1775 #if !GTEST_OS_WINDOWS_MOBILE |
|
1776 inline FILE *FReopen(const char* path, const char* mode, FILE* stream) { |
|
1777 return freopen(path, mode, stream); |
|
1778 } |
|
1779 inline FILE* FDOpen(int fd, const char* mode) { return fdopen(fd, mode); } |
|
1780 #endif |
|
1781 inline int FClose(FILE* fp) { return fclose(fp); } |
|
1782 #if !GTEST_OS_WINDOWS_MOBILE |
|
1783 inline int Read(int fd, void* buf, unsigned int count) { |
|
1784 return static_cast<int>(read(fd, buf, count)); |
|
1785 } |
|
1786 inline int Write(int fd, const void* buf, unsigned int count) { |
|
1787 return static_cast<int>(write(fd, buf, count)); |
|
1788 } |
|
1789 inline int Close(int fd) { return close(fd); } |
|
1790 inline const char* StrError(int errnum) { return strerror(errnum); } |
|
1791 #endif |
|
1792 inline const char* GetEnv(const char* name) { |
|
1793 #if GTEST_OS_WINDOWS_MOBILE |
|
1794 // We are on Windows CE, which has no environment variables. |
|
1795 return NULL; |
|
1796 #elif defined(__BORLANDC__) || defined(__SunOS_5_8) || defined(__SunOS_5_9) |
|
1797 // Environment variables which we programmatically clear will be set to the |
|
1798 // empty string rather than unset (NULL). Handle that case. |
|
1799 const char* const env = getenv(name); |
|
1800 return (env != NULL && env[0] != '\0') ? env : NULL; |
|
1801 #else |
|
1802 return getenv(name); |
|
1803 #endif |
|
1804 } |
|
1805 |
|
1806 #ifdef _MSC_VER |
|
1807 # pragma warning(pop) // Restores the warning state. |
|
1808 #endif |
|
1809 |
|
1810 #if GTEST_OS_WINDOWS_MOBILE |
|
1811 // Windows CE has no C library. The abort() function is used in |
|
1812 // several places in Google Test. This implementation provides a reasonable |
|
1813 // imitation of standard behaviour. |
|
1814 void Abort(); |
|
1815 #else |
|
1816 inline void Abort() { abort(); } |
|
1817 #endif // GTEST_OS_WINDOWS_MOBILE |
|
1818 |
|
1819 } // namespace posix |
|
1820 |
|
1821 // MSVC "deprecates" snprintf and issues warnings wherever it is used. In |
|
1822 // order to avoid these warnings, we need to use _snprintf or _snprintf_s on |
|
1823 // MSVC-based platforms. We map the GTEST_SNPRINTF_ macro to the appropriate |
|
1824 // function in order to achieve that. We use macro definition here because |
|
1825 // snprintf is a variadic function. |
|
1826 #if _MSC_VER >= 1400 && !GTEST_OS_WINDOWS_MOBILE |
|
1827 // MSVC 2005 and above support variadic macros. |
|
1828 # define GTEST_SNPRINTF_(buffer, size, format, ...) \ |
|
1829 _snprintf_s(buffer, size, size, format, __VA_ARGS__) |
|
1830 #elif defined(_MSC_VER) |
|
1831 // Windows CE does not define _snprintf_s and MSVC prior to 2005 doesn't |
|
1832 // complain about _snprintf. |
|
1833 # define GTEST_SNPRINTF_ _snprintf |
|
1834 #else |
|
1835 # define GTEST_SNPRINTF_ snprintf |
|
1836 #endif |
|
1837 |
|
1838 // The maximum number a BiggestInt can represent. This definition |
|
1839 // works no matter BiggestInt is represented in one's complement or |
|
1840 // two's complement. |
|
1841 // |
|
1842 // We cannot rely on numeric_limits in STL, as __int64 and long long |
|
1843 // are not part of standard C++ and numeric_limits doesn't need to be |
|
1844 // defined for them. |
|
1845 const BiggestInt kMaxBiggestInt = |
|
1846 ~(static_cast<BiggestInt>(1) << (8*sizeof(BiggestInt) - 1)); |
|
1847 |
|
1848 // This template class serves as a compile-time function from size to |
|
1849 // type. It maps a size in bytes to a primitive type with that |
|
1850 // size. e.g. |
|
1851 // |
|
1852 // TypeWithSize<4>::UInt |
|
1853 // |
|
1854 // is typedef-ed to be unsigned int (unsigned integer made up of 4 |
|
1855 // bytes). |
|
1856 // |
|
1857 // Such functionality should belong to STL, but I cannot find it |
|
1858 // there. |
|
1859 // |
|
1860 // Google Test uses this class in the implementation of floating-point |
|
1861 // comparison. |
|
1862 // |
|
1863 // For now it only handles UInt (unsigned int) as that's all Google Test |
|
1864 // needs. Other types can be easily added in the future if need |
|
1865 // arises. |
|
1866 template <size_t size> |
|
1867 class TypeWithSize { |
|
1868 public: |
|
1869 // This prevents the user from using TypeWithSize<N> with incorrect |
|
1870 // values of N. |
|
1871 typedef void UInt; |
|
1872 }; |
|
1873 |
|
1874 // The specialization for size 4. |
|
1875 template <> |
|
1876 class TypeWithSize<4> { |
|
1877 public: |
|
1878 // unsigned int has size 4 in both gcc and MSVC. |
|
1879 // |
|
1880 // As base/basictypes.h doesn't compile on Windows, we cannot use |
|
1881 // uint32, uint64, and etc here. |
|
1882 typedef int Int; |
|
1883 typedef unsigned int UInt; |
|
1884 }; |
|
1885 |
|
1886 // The specialization for size 8. |
|
1887 template <> |
|
1888 class TypeWithSize<8> { |
|
1889 public: |
|
1890 #if GTEST_OS_WINDOWS |
|
1891 typedef __int64 Int; |
|
1892 typedef unsigned __int64 UInt; |
|
1893 #else |
|
1894 typedef long long Int; // NOLINT |
|
1895 typedef unsigned long long UInt; // NOLINT |
|
1896 #endif // GTEST_OS_WINDOWS |
|
1897 }; |
|
1898 |
|
1899 // Integer types of known sizes. |
|
1900 typedef TypeWithSize<4>::Int Int32; |
|
1901 typedef TypeWithSize<4>::UInt UInt32; |
|
1902 typedef TypeWithSize<8>::Int Int64; |
|
1903 typedef TypeWithSize<8>::UInt UInt64; |
|
1904 typedef TypeWithSize<8>::Int TimeInMillis; // Represents time in milliseconds. |
|
1905 |
|
1906 // Utilities for command line flags and environment variables. |
|
1907 |
|
1908 // Macro for referencing flags. |
|
1909 #define GTEST_FLAG(name) FLAGS_gtest_##name |
|
1910 |
|
1911 // Macros for declaring flags. |
|
1912 #define GTEST_DECLARE_bool_(name) GTEST_API_ extern bool GTEST_FLAG(name) |
|
1913 #define GTEST_DECLARE_int32_(name) \ |
|
1914 GTEST_API_ extern ::testing::internal::Int32 GTEST_FLAG(name) |
|
1915 #define GTEST_DECLARE_string_(name) \ |
|
1916 GTEST_API_ extern ::std::string GTEST_FLAG(name) |
|
1917 |
|
1918 // Macros for defining flags. |
|
1919 #define GTEST_DEFINE_bool_(name, default_val, doc) \ |
|
1920 GTEST_API_ bool GTEST_FLAG(name) = (default_val) |
|
1921 #define GTEST_DEFINE_int32_(name, default_val, doc) \ |
|
1922 GTEST_API_ ::testing::internal::Int32 GTEST_FLAG(name) = (default_val) |
|
1923 #define GTEST_DEFINE_string_(name, default_val, doc) \ |
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1924 GTEST_API_ ::std::string GTEST_FLAG(name) = (default_val) |
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1925 |
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1926 // Thread annotations |
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1927 #define GTEST_EXCLUSIVE_LOCK_REQUIRED_(locks) |
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1928 #define GTEST_LOCK_EXCLUDED_(locks) |
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1929 |
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1930 // Parses 'str' for a 32-bit signed integer. If successful, writes the result |
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1931 // to *value and returns true; otherwise leaves *value unchanged and returns |
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1932 // false. |
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1933 // TODO(chandlerc): Find a better way to refactor flag and environment parsing |
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1934 // out of both gtest-port.cc and gtest.cc to avoid exporting this utility |
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1935 // function. |
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1936 bool ParseInt32(const Message& src_text, const char* str, Int32* value); |
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1937 |
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1938 // Parses a bool/Int32/string from the environment variable |
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1939 // corresponding to the given Google Test flag. |
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1940 bool BoolFromGTestEnv(const char* flag, bool default_val); |
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1941 GTEST_API_ Int32 Int32FromGTestEnv(const char* flag, Int32 default_val); |
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1942 const char* StringFromGTestEnv(const char* flag, const char* default_val); |
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1943 |
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1944 } // namespace internal |
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1945 } // namespace testing |
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1946 |
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1947 #endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ |