diff options
Diffstat (limited to 'utils/unittest/googletest/include/gtest/internal/gtest-port.h')
| -rw-r--r-- | utils/unittest/googletest/include/gtest/internal/gtest-port.h | 862 |
1 files changed, 862 insertions, 0 deletions
diff --git a/utils/unittest/googletest/include/gtest/internal/gtest-port.h b/utils/unittest/googletest/include/gtest/internal/gtest-port.h new file mode 100644 index 0000000000000..6a1593ef01784 --- /dev/null +++ b/utils/unittest/googletest/include/gtest/internal/gtest-port.h @@ -0,0 +1,862 @@ +// Copyright 2005, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +// Authors: wan@google.com (Zhanyong Wan) +// +// Low-level types and utilities for porting Google Test to various +// platforms. They are subject to change without notice. DO NOT USE +// THEM IN USER CODE. + +#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ +#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ + +// The user can define the following macros in the build script to +// control Google Test's behavior. If the user doesn't define a macro +// in this list, Google Test will define it. +// +// GTEST_HAS_CLONE - Define it to 1/0 to indicate that clone(2) +// is/isn't available. +// GTEST_HAS_GLOBAL_STRING - Define it to 1/0 to indicate that ::string +// is/isn't available (some systems define +// ::string, which is different to std::string). +// GTEST_HAS_GLOBAL_WSTRING - Define it to 1/0 to indicate that ::string +// is/isn't available (some systems define +// ::wstring, which is different to std::wstring). +// GTEST_HAS_PTHREAD - Define it to 1/0 to indicate that <pthread.h> +// is/isn't available. +// GTEST_HAS_RTTI - Define it to 1/0 to indicate that RTTI is/isn't +// enabled. +// GTEST_HAS_STD_STRING - Define it to 1/0 to indicate that +// std::string does/doesn't work (Google Test can +// be used where std::string is unavailable). +// GTEST_HAS_STD_WSTRING - Define it to 1/0 to indicate that +// std::wstring does/doesn't work (Google Test can +// be used where std::wstring is unavailable). +// GTEST_HAS_TR1_TUPLE 1 - Define it to 1/0 to indicate tr1::tuple +// is/isn't available. + +// This header defines the following utilities: +// +// Macros indicating the name of the Google C++ Testing Framework project: +// GTEST_NAME - a string literal of the project name. +// GTEST_FLAG_PREFIX - a string literal of the prefix all Google +// Test flag names share. +// GTEST_FLAG_PREFIX_UPPER - a string literal of the prefix all Google +// Test flag names share, in upper case. +// +// Macros indicating the current platform: +// GTEST_OS_CYGWIN - defined iff compiled on Cygwin. +// GTEST_OS_LINUX - defined iff compiled on Linux. +// GTEST_OS_MAC - defined iff compiled on Mac OS X. +// GTEST_OS_SOLARIS - defined iff compiled on Sun Solaris. +// GTEST_OS_SYMBIAN - defined iff compiled for Symbian. +// GTEST_OS_WINDOWS - defined iff compiled on Windows. +// GTEST_OS_ZOS - defined iff compiled on IBM z/OS. +// +// Among the platforms, Cygwin, Linux, Max OS X, and Windows have the +// most stable support. Since core members of the Google Test project +// don't have access to other platforms, support for them may be less +// stable. If you notice any problems on your platform, please notify +// googletestframework@googlegroups.com (patches for fixing them are +// even more welcome!). +// +// Note that it is possible that none of the GTEST_OS_ macros are defined. +// +// Macros indicating available Google Test features: +// GTEST_HAS_COMBINE - defined iff Combine construct is supported +// in value-parameterized tests. +// GTEST_HAS_DEATH_TEST - defined iff death tests are supported. +// GTEST_HAS_PARAM_TEST - defined iff value-parameterized tests are +// supported. +// GTEST_HAS_TYPED_TEST - defined iff typed tests are supported. +// GTEST_HAS_TYPED_TEST_P - defined iff type-parameterized tests are +// supported. +// +// Macros for basic C++ coding: +// GTEST_AMBIGUOUS_ELSE_BLOCKER_ - for disabling a gcc warning. +// GTEST_ATTRIBUTE_UNUSED_ - declares that a class' instances don't have to +// be used. +// GTEST_DISALLOW_COPY_AND_ASSIGN_ - disables copy ctor and operator=. +// GTEST_MUST_USE_RESULT_ - declares that a function's result must be used. +// +// Synchronization: +// Mutex, MutexLock, ThreadLocal, GetThreadCount() +// - synchronization primitives. +// GTEST_IS_THREADSAFE - defined to 1 to indicate that the above +// synchronization primitives have real implementations +// and Google Test is thread-safe; or 0 otherwise. +// +// Template meta programming: +// is_pointer - as in TR1; needed on Symbian and IBM XL C/C++ only. +// +// Smart pointers: +// scoped_ptr - as in TR2. +// +// Regular expressions: +// RE - a simple regular expression class using the POSIX +// Extended Regular Expression syntax. Not available on +// Windows. +// +// Logging: +// GTEST_LOG_() - logs messages at the specified severity level. +// LogToStderr() - directs all log messages to stderr. +// FlushInfoLog() - flushes informational log messages. +// +// Stderr capturing: +// CaptureStderr() - starts capturing stderr. +// GetCapturedStderr() - stops capturing stderr and returns the captured +// string. +// +// Integer types: +// TypeWithSize - maps an integer to a int type. +// Int32, UInt32, Int64, UInt64, TimeInMillis +// - integers of known sizes. +// BiggestInt - the biggest signed integer type. +// +// Command-line utilities: +// GTEST_FLAG() - references a flag. +// GTEST_DECLARE_*() - declares a flag. +// GTEST_DEFINE_*() - defines a flag. +// GetArgvs() - returns the command line as a vector of strings. +// +// Environment variable utilities: +// GetEnv() - gets the value of an environment variable. +// BoolFromGTestEnv() - parses a bool environment variable. +// Int32FromGTestEnv() - parses an Int32 environment variable. +// StringFromGTestEnv() - parses a string environment variable. + +#include <stdlib.h> +#include <stdio.h> +#include <iostream> // Used for GTEST_CHECK_ + +#define GTEST_NAME "Google Test" +#define GTEST_FLAG_PREFIX "gtest_" +#define GTEST_FLAG_PREFIX_UPPER "GTEST_" + +// Determines the version of gcc that is used to compile this. +#ifdef __GNUC__ +// 40302 means version 4.3.2. +#define GTEST_GCC_VER_ \ + (__GNUC__*10000 + __GNUC_MINOR__*100 + __GNUC_PATCHLEVEL__) +#endif // __GNUC__ + +// Determines the platform on which Google Test is compiled. +#ifdef __CYGWIN__ +#define GTEST_OS_CYGWIN +#elif __SYMBIAN32__ +#define GTEST_OS_SYMBIAN +#elif defined _MSC_VER +// TODO(kenton@google.com): GTEST_OS_WINDOWS is currently used to mean +// both "The OS is Windows" and "The compiler is MSVC". These +// meanings really should be separated in order to better support +// Windows compilers other than MSVC. +#define GTEST_OS_WINDOWS +#elif defined __APPLE__ +#define GTEST_OS_MAC +#elif defined __linux__ +#define GTEST_OS_LINUX +#elif defined __MVS__ +#define GTEST_OS_ZOS +#elif defined(__sun) && defined(__SVR4) +#define GTEST_OS_SOLARIS +#endif // _MSC_VER + +// Determines whether ::std::string and ::string are available. + +#ifndef GTEST_HAS_STD_STRING +// The user didn't tell us whether ::std::string is available, so we +// need to figure it out. + +#ifdef GTEST_OS_WINDOWS +// Assumes that exceptions are enabled by default. +#ifndef _HAS_EXCEPTIONS +#define _HAS_EXCEPTIONS 1 +#endif // _HAS_EXCEPTIONS +// GTEST_HAS_EXCEPTIONS is non-zero iff exceptions are enabled. It is +// always defined, while _HAS_EXCEPTIONS is defined only on Windows. +#define GTEST_HAS_EXCEPTIONS _HAS_EXCEPTIONS +// On Windows, we can use ::std::string if the compiler version is VS +// 2005 or above, or if exceptions are enabled. +#define GTEST_HAS_STD_STRING ((_MSC_VER >= 1400) || GTEST_HAS_EXCEPTIONS) +#else // We are on Linux or Mac OS. +#define GTEST_HAS_EXCEPTIONS 0 +#define GTEST_HAS_STD_STRING 1 +#endif // GTEST_OS_WINDOWS + +#endif // GTEST_HAS_STD_STRING + +#ifndef GTEST_HAS_GLOBAL_STRING +// The user didn't tell us whether ::string is available, so we need +// to figure it out. + +#define GTEST_HAS_GLOBAL_STRING 0 + +#endif // GTEST_HAS_GLOBAL_STRING + +#ifndef GTEST_HAS_STD_WSTRING +// The user didn't tell us whether ::std::wstring is available, so we need +// to figure it out. +// TODO(wan@google.com): uses autoconf to detect whether ::std::wstring +// is available. + +#if defined(GTEST_OS_CYGWIN) || defined(GTEST_OS_SOLARIS) +// At least some versions of cygwin don't support ::std::wstring. +// Solaris' libc++ doesn't support it either. +#define GTEST_HAS_STD_WSTRING 0 +#else +#define GTEST_HAS_STD_WSTRING GTEST_HAS_STD_STRING +#endif // defined(GTEST_OS_CYGWIN) || defined(GTEST_OS_SOLARIS) + +#endif // GTEST_HAS_STD_WSTRING + +#ifndef GTEST_HAS_GLOBAL_WSTRING +// The user didn't tell us whether ::wstring is available, so we need +// to figure it out. +#define GTEST_HAS_GLOBAL_WSTRING GTEST_HAS_GLOBAL_STRING +#endif // GTEST_HAS_GLOBAL_WSTRING + +#if GTEST_HAS_STD_STRING || GTEST_HAS_GLOBAL_STRING || \ + GTEST_HAS_STD_WSTRING || GTEST_HAS_GLOBAL_WSTRING +#include <string> // NOLINT +#endif // GTEST_HAS_STD_STRING || GTEST_HAS_GLOBAL_STRING || + // GTEST_HAS_STD_WSTRING || GTEST_HAS_GLOBAL_WSTRING + +#if GTEST_HAS_STD_STRING +#include <sstream> // NOLINT +#else +#include <strstream> // NOLINT +#endif // GTEST_HAS_STD_STRING + +// Determines whether RTTI is available. +#ifndef GTEST_HAS_RTTI +// The user didn't tell us whether RTTI is enabled, so we need to +// figure it out. + +#ifdef _MSC_VER + +#ifdef _CPPRTTI // MSVC defines this macro iff RTTI is enabled. +#define GTEST_HAS_RTTI 1 +#else +#define GTEST_HAS_RTTI 0 +#endif // _CPPRTTI + +#elif defined(__GNUC__) + +// Starting with version 4.3.2, gcc defines __GXX_RTTI iff RTTI is enabled. +#if GTEST_GCC_VER_ >= 40302 +#ifdef __GXX_RTTI +#define GTEST_HAS_RTTI 1 +#else +#define GTEST_HAS_RTTI 0 +#endif // __GXX_RTTI +#else +// For gcc versions smaller than 4.3.2, we assume RTTI is enabled. +#define GTEST_HAS_RTTI 1 +#endif // GTEST_GCC_VER >= 40302 + +#else + +// Unknown compiler - assume RTTI is enabled. +#define GTEST_HAS_RTTI 1 + +#endif // _MSC_VER + +#endif // GTEST_HAS_RTTI + +// Determines whether <pthread.h> is available. +#ifndef GTEST_HAS_PTHREAD +// The user didn't tell us, so we need to figure it out. + +#if defined(GTEST_OS_LINUX) || defined(GTEST_OS_MAC) +#define GTEST_HAS_PTHREAD 1 +#else +#define GTEST_HAS_PTHREAD 0 +#endif // GTEST_OS_LINUX || GTEST_OS_MAC + +#endif // GTEST_HAS_PTHREAD + +// Determines whether tr1/tuple is available. If you have tr1/tuple +// on your platform, define GTEST_HAS_TR1_TUPLE=1 for both the Google +// Test project and your tests. If you would like Google Test to detect +// tr1/tuple on your platform automatically, please open an issue +// ticket at http://code.google.com/p/googletest. +#ifndef GTEST_HAS_TR1_TUPLE +// The user didn't tell us, so we need to figure it out. + +// GCC provides <tr1/tuple> since 4.0.0. +#if defined(__GNUC__) && (GTEST_GCC_VER_ >= 40000) +#define GTEST_HAS_TR1_TUPLE 1 +#else +#define GTEST_HAS_TR1_TUPLE 0 +#endif // __GNUC__ +#endif // GTEST_HAS_TR1_TUPLE + +// To avoid conditional compilation everywhere, we make it +// gtest-port.h's responsibility to #include the header implementing +// tr1/tuple. +#if GTEST_HAS_TR1_TUPLE +#if defined(__GNUC__) +// GCC implements tr1/tuple in the <tr1/tuple> header. This does not +// conform to the TR1 spec, which requires the header to be <tuple>. +#include <tr1/tuple> +#else +// If the compiler is not GCC, we assume the user is using a +// spec-conforming TR1 implementation. +#include <tuple> +#endif // __GNUC__ +#endif // GTEST_HAS_TR1_TUPLE + +// Determines whether clone(2) is supported. +// Usually it will only be available on Linux, excluding +// Linux on the Itanium architecture. +// Also see http://linux.die.net/man/2/clone. +#ifndef GTEST_HAS_CLONE +// The user didn't tell us, so we need to figure it out. + +#if defined(GTEST_OS_LINUX) && !defined(__ia64__) +#define GTEST_HAS_CLONE 1 +#else +#define GTEST_HAS_CLONE 0 +#endif // defined(GTEST_OS_LINUX) && !defined(__ia64__) + +#endif // GTEST_HAS_CLONE + +// Determines whether to support death tests. +#if GTEST_HAS_STD_STRING && GTEST_HAS_CLONE +#define GTEST_HAS_DEATH_TEST +// On some platforms, <regex.h> needs someone to define size_t, and +// won't compile otherwise. We can #include it here as we already +// included <stdlib.h>, which is guaranteed to define size_t through +// <stddef.h>. +#include <regex.h> +#include <vector> +#include <fcntl.h> +#include <sys/mman.h> +#endif // GTEST_HAS_STD_STRING && GTEST_HAS_CLONE + +// Determines whether to support value-parameterized tests. + +#if defined(__GNUC__) || (_MSC_VER >= 1400) +// TODO(vladl@google.com): get the implementation rid of vector and list +// to compile on MSVC 7.1. +#define GTEST_HAS_PARAM_TEST +#endif // defined(__GNUC__) || (_MSC_VER >= 1400) + +// Determines whether to support type-driven tests. + +// Typed tests need <typeinfo> and variadic macros, which gcc and VC +// 8.0+ support. +#if defined(__GNUC__) || (_MSC_VER >= 1400) +#define GTEST_HAS_TYPED_TEST +#define GTEST_HAS_TYPED_TEST_P +#endif // defined(__GNUC__) || (_MSC_VER >= 1400) + +// Determines whether to support Combine(). This only makes sense when +// value-parameterized tests are enabled. +#if defined(GTEST_HAS_PARAM_TEST) && GTEST_HAS_TR1_TUPLE +#define GTEST_HAS_COMBINE +#endif // defined(GTEST_HAS_PARAM_TEST) && GTEST_HAS_TR1_TUPLE + +// Determines whether the system compiler uses UTF-16 for encoding wide strings. +#if defined(GTEST_OS_WINDOWS) || defined(GTEST_OS_CYGWIN) || \ + defined(GTEST_OS_SYMBIAN) +#define GTEST_WIDE_STRING_USES_UTF16_ 1 +#endif + +// Defines some utility macros. + +// The GNU compiler emits a warning if nested "if" statements are followed by +// an "else" statement and braces are not used to explicitly disambiguate the +// "else" binding. This leads to problems with code like: +// +// if (gate) +// ASSERT_*(condition) << "Some message"; +// +// The "switch (0) case 0:" idiom is used to suppress this. +#ifdef __INTEL_COMPILER +#define GTEST_AMBIGUOUS_ELSE_BLOCKER_ +#else +#define GTEST_AMBIGUOUS_ELSE_BLOCKER_ switch (0) case 0: // NOLINT +#endif + +// Use this annotation at the end of a struct / class definition to +// prevent the compiler from optimizing away instances that are never +// used. This is useful when all interesting logic happens inside the +// c'tor and / or d'tor. Example: +// +// struct Foo { +// Foo() { ... } +// } GTEST_ATTRIBUTE_UNUSED_; +#if defined(__GNUC__) && !defined(COMPILER_ICC) +#define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused)) +#else +#define GTEST_ATTRIBUTE_UNUSED_ +#endif + +// A macro to disallow the evil copy constructor and operator= functions +// This should be used in the private: declarations for a class. +#define GTEST_DISALLOW_COPY_AND_ASSIGN_(type)\ + type(const type &);\ + void operator=(const type &) + +// Tell the compiler to warn about unused return values for functions declared +// with this macro. The macro should be used on function declarations +// following the argument list: +// +// Sprocket* AllocateSprocket() GTEST_MUST_USE_RESULT_; +#if defined(__GNUC__) && (GTEST_GCC_VER_ >= 30400) && !defined(COMPILER_ICC) +#define GTEST_MUST_USE_RESULT_ __attribute__ ((warn_unused_result)) +#else +#define GTEST_MUST_USE_RESULT_ +#endif // __GNUC__ && (GTEST_GCC_VER_ >= 30400) && !COMPILER_ICC + +namespace testing { + +class Message; + +namespace internal { + +class String; + +// std::strstream is deprecated. However, we have to use it on +// Windows as std::stringstream won't compile on Windows when +// exceptions are disabled. We use std::stringstream on other +// platforms to avoid compiler warnings there. +#if GTEST_HAS_STD_STRING +typedef ::std::stringstream StrStream; +#else +typedef ::std::strstream StrStream; +#endif // GTEST_HAS_STD_STRING + +// Defines scoped_ptr. + +// This implementation of scoped_ptr is PARTIAL - it only contains +// enough stuff to satisfy Google Test's need. +template <typename T> +class scoped_ptr { + public: + explicit scoped_ptr(T* p = NULL) : ptr_(p) {} + ~scoped_ptr() { reset(); } + + T& operator*() const { return *ptr_; } + T* operator->() const { return ptr_; } + T* get() const { return ptr_; } + + T* release() { + T* const ptr = ptr_; + ptr_ = NULL; + return ptr; + } + + void reset(T* p = NULL) { + if (p != ptr_) { + if (sizeof(T) > 0) { // Makes sure T is a complete type. + delete ptr_; + } + ptr_ = p; + } + } + private: + T* ptr_; + + GTEST_DISALLOW_COPY_AND_ASSIGN_(scoped_ptr); +}; + +#ifdef GTEST_HAS_DEATH_TEST + +// Defines RE. + +// A simple C++ wrapper for <regex.h>. It uses the POSIX Enxtended +// Regular Expression syntax. +class RE { + public: + // Constructs an RE from a string. +#if GTEST_HAS_STD_STRING + RE(const ::std::string& regex) { Init(regex.c_str()); } // NOLINT +#endif // GTEST_HAS_STD_STRING + +#if GTEST_HAS_GLOBAL_STRING + RE(const ::string& regex) { Init(regex.c_str()); } // NOLINT +#endif // GTEST_HAS_GLOBAL_STRING + + RE(const char* regex) { Init(regex); } // NOLINT + ~RE(); + + // Returns the string representation of the regex. + const char* pattern() const { return pattern_; } + + // FullMatch(str, re) returns true iff regular expression re matches + // the entire str. + // PartialMatch(str, re) returns true iff regular expression re + // matches a substring of str (including str itself). + // + // TODO(wan@google.com): make FullMatch() and PartialMatch() work + // when str contains NUL characters. +#if GTEST_HAS_STD_STRING + static bool FullMatch(const ::std::string& str, const RE& re) { + return FullMatch(str.c_str(), re); + } + static bool PartialMatch(const ::std::string& str, const RE& re) { + return PartialMatch(str.c_str(), re); + } +#endif // GTEST_HAS_STD_STRING + +#if GTEST_HAS_GLOBAL_STRING + static bool FullMatch(const ::string& str, const RE& re) { + return FullMatch(str.c_str(), re); + } + static bool PartialMatch(const ::string& str, const RE& re) { + return PartialMatch(str.c_str(), re); + } +#endif // GTEST_HAS_GLOBAL_STRING + + static bool FullMatch(const char* str, const RE& re); + static bool PartialMatch(const char* str, const RE& re); + + private: + void Init(const char* regex); + + // We use a const char* instead of a string, as Google Test may be used + // where string is not available. We also do not use Google Test's own + // String type here, in order to simplify dependencies between the + // files. + const char* pattern_; + regex_t full_regex_; // For FullMatch(). + regex_t partial_regex_; // For PartialMatch(). + bool is_valid_; +}; + +#endif // GTEST_HAS_DEATH_TEST + +// Defines logging utilities: +// GTEST_LOG_() - logs messages at the specified severity level. +// LogToStderr() - directs all log messages to stderr. +// FlushInfoLog() - flushes informational log messages. + +enum GTestLogSeverity { + GTEST_INFO, + GTEST_WARNING, + GTEST_ERROR, + GTEST_FATAL +}; + +void GTestLog(GTestLogSeverity severity, const char* file, + int line, const char* msg); + +#define GTEST_LOG_(severity, msg)\ + ::testing::internal::GTestLog(\ + ::testing::internal::GTEST_##severity, __FILE__, __LINE__, \ + (::testing::Message() << (msg)).GetString().c_str()) + +inline void LogToStderr() {} +inline void FlushInfoLog() { fflush(NULL); } + +// Defines the stderr capturer: +// CaptureStderr - starts capturing stderr. +// GetCapturedStderr - stops capturing stderr and returns the captured string. + +#ifdef GTEST_HAS_DEATH_TEST + +// A copy of all command line arguments. Set by InitGoogleTest(). +extern ::std::vector<String> g_argvs; + +void CaptureStderr(); +// GTEST_HAS_DEATH_TEST implies we have ::std::string. +::std::string GetCapturedStderr(); +const ::std::vector<String>& GetArgvs(); + +#endif // GTEST_HAS_DEATH_TEST + +// Defines synchronization primitives. + +// A dummy implementation of synchronization primitives (mutex, lock, +// and thread-local variable). Necessary for compiling Google Test where +// mutex is not supported - using Google Test in multiple threads is not +// supported on such platforms. + +class Mutex { + public: + Mutex() {} + explicit Mutex(int /*unused*/) {} + void AssertHeld() const {} + enum { NO_CONSTRUCTOR_NEEDED_FOR_STATIC_MUTEX = 0 }; +}; + +// We cannot call it MutexLock directly as the ctor declaration would +// conflict with a macro named MutexLock, which is defined on some +// platforms. Hence the typedef trick below. +class GTestMutexLock { + public: + explicit GTestMutexLock(Mutex*) {} // NOLINT +}; + +typedef GTestMutexLock MutexLock; + +template <typename T> +class ThreadLocal { + public: + ThreadLocal() : value_() {} + explicit ThreadLocal(const T& value) : value_(value) {} + T* pointer() { return &value_; } + const T* pointer() const { return &value_; } + const T& get() const { return value_; } + void set(const T& value) { value_ = value; } + private: + T value_; +}; + +// There's no portable way to detect the number of threads, so we just +// return 0 to indicate that we cannot detect it. +inline size_t GetThreadCount() { return 0; } + +// The above synchronization primitives have dummy implementations. +// Therefore Google Test is not thread-safe. +#define GTEST_IS_THREADSAFE 0 + +#if defined(__SYMBIAN32__) || defined(__IBMCPP__) + +// Passing non-POD classes through ellipsis (...) crashes the ARM +// compiler. The Nokia Symbian and the IBM XL C/C++ compiler try to +// instantiate a copy constructor for objects passed through ellipsis +// (...), failing for uncopyable objects. We define this to indicate +// the fact. +#define GTEST_ELLIPSIS_NEEDS_COPY_ 1 + +// The Nokia Symbian and IBM XL C/C++ compilers cannot decide between +// const T& and const T* in a function template. These compilers +// _can_ decide between class template specializations for T and T*, +// so a tr1::type_traits-like is_pointer works. +#define GTEST_NEEDS_IS_POINTER_ 1 + +#endif // defined(__SYMBIAN32__) || defined(__IBMCPP__) + +template <bool bool_value> +struct bool_constant { + typedef bool_constant<bool_value> type; + static const bool value = bool_value; +}; +template <bool bool_value> const bool bool_constant<bool_value>::value; + +typedef bool_constant<false> false_type; +typedef bool_constant<true> true_type; + +template <typename T> +struct is_pointer : public false_type {}; + +template <typename T> +struct is_pointer<T*> : public true_type {}; + +// Defines BiggestInt as the biggest signed integer type the compiler +// supports. + +#ifdef GTEST_OS_WINDOWS +typedef __int64 BiggestInt; +#else +typedef long long BiggestInt; // NOLINT +#endif // GTEST_OS_WINDOWS + +// The maximum number a BiggestInt can represent. This definition +// works no matter BiggestInt is represented in one's complement or +// two's complement. +// +// We cannot rely on numeric_limits in STL, as __int64 and long long +// are not part of standard C++ and numeric_limits doesn't need to be +// defined for them. +const BiggestInt kMaxBiggestInt = + ~(static_cast<BiggestInt>(1) << (8*sizeof(BiggestInt) - 1)); + +// This template class serves as a compile-time function from size to +// type. It maps a size in bytes to a primitive type with that +// size. e.g. +// +// TypeWithSize<4>::UInt +// +// is typedef-ed to be unsigned int (unsigned integer made up of 4 +// bytes). +// +// Such functionality should belong to STL, but I cannot find it +// there. +// +// Google Test uses this class in the implementation of floating-point +// comparison. +// +// For now it only handles UInt (unsigned int) as that's all Google Test +// needs. Other types can be easily added in the future if need +// arises. +template <size_t size> +class TypeWithSize { + public: + // This prevents the user from using TypeWithSize<N> with incorrect + // values of N. + typedef void UInt; +}; + +// The specialization for size 4. +template <> +class TypeWithSize<4> { + public: + // unsigned int has size 4 in both gcc and MSVC. + // + // As base/basictypes.h doesn't compile on Windows, we cannot use + // uint32, uint64, and etc here. + typedef int Int; + typedef unsigned int UInt; +}; + +// The specialization for size 8. +template <> +class TypeWithSize<8> { + public: +#ifdef GTEST_OS_WINDOWS + typedef __int64 Int; + typedef unsigned __int64 UInt; +#else + typedef long long Int; // NOLINT + typedef unsigned long long UInt; // NOLINT +#endif // GTEST_OS_WINDOWS +}; + +// Integer types of known sizes. +typedef TypeWithSize<4>::Int Int32; +typedef TypeWithSize<4>::UInt UInt32; +typedef TypeWithSize<8>::Int Int64; +typedef TypeWithSize<8>::UInt UInt64; +typedef TypeWithSize<8>::Int TimeInMillis; // Represents time in milliseconds. + +// Utilities for command line flags and environment variables. + +// A wrapper for getenv() that works on Linux, Windows, and Mac OS. +inline const char* GetEnv(const char* name) { +#ifdef _WIN32_WCE // We are on Windows CE. + // CE has no environment variables. + return NULL; +#elif defined(GTEST_OS_WINDOWS) // We are on Windows proper. + // MSVC 8 deprecates getenv(), so we want to suppress warning 4996 + // (deprecated function) there. +#pragma warning(push) // Saves the current warning state. +#pragma warning(disable:4996) // Temporarily disables warning 4996. + return getenv(name); +#pragma warning(pop) // Restores the warning state. +#else // We are on Linux or Mac OS. + return getenv(name); +#endif +} + +#ifdef _WIN32_WCE +// Windows CE has no C library. The abort() function is used in +// several places in Google Test. This implementation provides a reasonable +// imitation of standard behaviour. +void abort(); +#else +inline void abort() { ::abort(); } +#endif // _WIN32_WCE + +// INTERNAL IMPLEMENTATION - DO NOT USE. +// +// GTEST_CHECK_ is an all-mode assert. It aborts the program if the condition +// is not satisfied. +// Synopsys: +// GTEST_CHECK_(boolean_condition); +// or +// GTEST_CHECK_(boolean_condition) << "Additional message"; +// +// This checks the condition and if the condition is not satisfied +// it prints message about the condition violation, including the +// condition itself, plus additional message streamed into it, if any, +// and then it aborts the program. It aborts the program irrespective of +// whether it is built in the debug mode or not. +class GTestCheckProvider { + public: + GTestCheckProvider(const char* condition, const char* file, int line) { + FormatFileLocation(file, line); + ::std::cerr << " ERROR: Condition " << condition << " failed. "; + } + ~GTestCheckProvider() { + ::std::cerr << ::std::endl; + abort(); + } + void FormatFileLocation(const char* file, int line) { + if (file == NULL) + file = "unknown file"; + if (line < 0) { + ::std::cerr << file << ":"; + } else { +#if _MSC_VER + ::std::cerr << file << "(" << line << "):"; +#else + ::std::cerr << file << ":" << line << ":"; +#endif + } + } + ::std::ostream& GetStream() { return ::std::cerr; } +}; +#define GTEST_CHECK_(condition) \ + GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ + if (condition) \ + ; \ + else \ + ::testing::internal::GTestCheckProvider(\ + #condition, __FILE__, __LINE__).GetStream() + +// Macro for referencing flags. +#define GTEST_FLAG(name) FLAGS_gtest_##name + +// Macros for declaring flags. +#define GTEST_DECLARE_bool_(name) extern bool GTEST_FLAG(name) +#define GTEST_DECLARE_int32_(name) \ + extern ::testing::internal::Int32 GTEST_FLAG(name) +#define GTEST_DECLARE_string_(name) \ + extern ::testing::internal::String GTEST_FLAG(name) + +// Macros for defining flags. +#define GTEST_DEFINE_bool_(name, default_val, doc) \ + bool GTEST_FLAG(name) = (default_val) +#define GTEST_DEFINE_int32_(name, default_val, doc) \ + ::testing::internal::Int32 GTEST_FLAG(name) = (default_val) +#define GTEST_DEFINE_string_(name, default_val, doc) \ + ::testing::internal::String GTEST_FLAG(name) = (default_val) + +// Parses 'str' for a 32-bit signed integer. If successful, writes the result +// to *value and returns true; otherwise leaves *value unchanged and returns +// false. +// TODO(chandlerc): Find a better way to refactor flag and environment parsing +// out of both gtest-port.cc and gtest.cc to avoid exporting this utility +// function. +bool ParseInt32(const Message& src_text, const char* str, Int32* value); + +// Parses a bool/Int32/string from the environment variable +// corresponding to the given Google Test flag. +bool BoolFromGTestEnv(const char* flag, bool default_val); +Int32 Int32FromGTestEnv(const char* flag, Int32 default_val); +const char* StringFromGTestEnv(const char* flag, const char* default_val); + +} // namespace internal +} // namespace testing + +#endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ |