llvm-6502/utils/unittest/googletest/include/gtest/internal/gtest-port.h
Misha Brukman 7ae6ff442a Import of Google Test 1.2.1, with the non-essential bits removed.
Added a README.LLVM file to indicate which files and directories
were removed from the original source tarball.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61526 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-31 17:34:06 +00:00

863 lines
29 KiB
C++

// 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_