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// Copyright 2005, Google Inc.
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// All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Authors: wan@google.com (Zhanyong Wan), eefacm@gmail.com (Sean Mcafee)
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// The Google C++ Testing Framework (Google Test)
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// This header file declares functions and macros used internally by
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// Google Test. They are subject to change without notice.
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#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_
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#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_
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#include <gtest/internal/gtest-port.h>
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#include <sys/types.h>
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#endif // GTEST_OS_LINUX
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#include <gtest/internal/gtest-string.h>
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#include <gtest/internal/gtest-filepath.h>
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#include <gtest/internal/gtest-type-util.h>
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#include "llvm/Support/raw_os_ostream.h"
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// Due to C++ preprocessor weirdness, we need double indirection to
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// concatenate two tokens when one of them is __LINE__. Writing
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// will result in the token foo__LINE__, instead of foo followed by
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// the current line number. For more details, see
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// http://www.parashift.com/c++-faq-lite/misc-technical-issues.html#faq-39.6
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#define GTEST_CONCAT_TOKEN_(foo, bar) GTEST_CONCAT_TOKEN_IMPL_(foo, bar)
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#define GTEST_CONCAT_TOKEN_IMPL_(foo, bar) foo ## bar
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// Google Test defines the testing::Message class to allow construction of
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// test messages via the << operator. The idea is that anything
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// streamable to std::ostream can be streamed to a testing::Message.
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// This allows a user to use his own types in Google Test assertions by
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// overloading the << operator.
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// util/gtl/stl_logging-inl.h overloads << for STL containers. These
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// overloads cannot be defined in the std namespace, as that will be
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// undefined behavior. Therefore, they are defined in the global
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// C++'s symbol lookup rule (i.e. Koenig lookup) says that these
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// overloads are visible in either the std namespace or the global
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// namespace, but not other namespaces, including the testing
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// namespace which Google Test's Message class is in.
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// To allow STL containers (and other types that has a << operator
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// defined in the global namespace) to be used in Google Test assertions,
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// testing::Message must access the custom << operator from the global
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// namespace. Hence this helper function.
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// Note: Jeffrey Yasskin suggested an alternative fix by "using
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// ::operator<<;" in the definition of Message's operator<<. That fix
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// doesn't require a helper function, but unfortunately doesn't
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// LLVM INTERNAL CHANGE: To allow operator<< to work with both
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// std::ostreams and LLVM's raw_ostreams, we define a special
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// std::ostream with an implicit conversion to raw_ostream& and stream
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// to that. This causes the compiler to prefer std::ostream overloads
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// but still find raw_ostream& overloads.
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class convertible_fwd_ostream : public std::ostream {
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convertible_fwd_ostream(std::ostream& os)
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: std::ostream(os.rdbuf()), os_(os), ros_(*this) {}
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operator raw_ostream&() { return ros_; }
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template <typename T>
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inline void GTestStreamToHelper(std::ostream* os, const T& val) {
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llvm::convertible_fwd_ostream cos(*os);
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// Forward declaration of classes.
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class Message; // Represents a failure message.
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class Test; // Represents a test.
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class TestCase; // A collection of related tests.
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class TestPartResult; // Result of a test part.
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class TestInfo; // Information about a test.
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class UnitTest; // A collection of test cases.
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class UnitTestEventListenerInterface; // Listens to Google Test events.
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class AssertionResult; // Result of an assertion.
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struct TraceInfo; // Information about a trace point.
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class ScopedTrace; // Implements scoped trace.
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class TestInfoImpl; // Opaque implementation of TestInfo
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class TestResult; // Result of a single Test.
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class UnitTestImpl; // Opaque implementation of UnitTest
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template <typename E> class List; // A generic list.
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template <typename E> class ListNode; // A node in a generic list.
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// How many times InitGoogleTest() has been called.
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extern int g_init_gtest_count;
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// The text used in failure messages to indicate the start of the
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extern const char kStackTraceMarker[];
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// A secret type that Google Test users don't know about. It has no
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// definition on purpose. Therefore it's impossible to create a
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// Secret object, which is what we want.
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// Two overloaded helpers for checking at compile time whether an
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// expression is a null pointer literal (i.e. NULL or any 0-valued
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// compile-time integral constant). Their return values have
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// different sizes, so we can use sizeof() to test which version is
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// picked by the compiler. These helpers have no implementations, as
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// we only need their signatures.
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// Given IsNullLiteralHelper(x), the compiler will pick the first
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// version if x can be implicitly converted to Secret*, and pick the
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// second version otherwise. Since Secret is a secret and incomplete
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// type, the only expression a user can write that has type Secret* is
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// a null pointer literal. Therefore, we know that x is a null
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// pointer literal if and only if the first version is picked by the
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char IsNullLiteralHelper(Secret* p);
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char (&IsNullLiteralHelper(...))[2]; // NOLINT
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// A compile-time bool constant that is true if and only if x is a
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// null pointer literal (i.e. NULL or any 0-valued compile-time
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// integral constant).
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#ifdef GTEST_ELLIPSIS_NEEDS_COPY_
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// Passing non-POD classes through ellipsis (...) crashes the ARM
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// compiler. The Nokia Symbian and the IBM XL C/C++ compiler try to
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// instantiate a copy constructor for objects passed through ellipsis
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// (...), failing for uncopyable objects. Hence we define this to
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// false (and lose support for NULL detection).
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#define GTEST_IS_NULL_LITERAL_(x) false
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#define GTEST_IS_NULL_LITERAL_(x) \
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(sizeof(::testing::internal::IsNullLiteralHelper(x)) == 1)
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#endif // GTEST_ELLIPSIS_NEEDS_COPY_
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// Appends the user-supplied message to the Google-Test-generated message.
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String AppendUserMessage(const String& gtest_msg,
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const Message& user_msg);
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// A helper class for creating scoped traces in user programs.
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// The c'tor pushes the given source file location and message onto
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// a trace stack maintained by Google Test.
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ScopedTrace(const char* file, int line, const Message& message);
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// The d'tor pops the info pushed by the c'tor.
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// Note that the d'tor is not virtual in order to be efficient.
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// Don't inherit from ScopedTrace!
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GTEST_DISALLOW_COPY_AND_ASSIGN_(ScopedTrace);
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} GTEST_ATTRIBUTE_UNUSED_; // A ScopedTrace object does its job in its
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// c'tor and d'tor. Therefore it doesn't
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// need to be used otherwise.
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// Converts a streamable value to a String. A NULL pointer is
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// converted to "(null)". When the input value is a ::string,
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// ::std::string, ::wstring, or ::std::wstring object, each NUL
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// character in it is replaced with "\\0".
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// Declared here but defined in gtest.h, so that it has access
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// to the definition of the Message class, required by the ARM
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template <typename T>
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String StreamableToString(const T& streamable);
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// Formats a value to be used in a failure message.
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#ifdef GTEST_NEEDS_IS_POINTER_
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// These are needed as the Nokia Symbian and IBM XL C/C++ compilers
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// cannot decide between const T& and const T* in a function template.
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// These compilers _can_ decide between class template specializations
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// for T and T*, so a tr1::type_traits-like is_pointer works, and we
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// can overload on that.
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// This overload makes sure that all pointers (including
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// those to char or wchar_t) are printed as raw pointers.
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template <typename T>
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inline String FormatValueForFailureMessage(internal::true_type dummy,
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return StreamableToString(static_cast<const void*>(pointer));
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template <typename T>
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inline String FormatValueForFailureMessage(internal::false_type dummy,
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return StreamableToString(value);
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template <typename T>
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inline String FormatForFailureMessage(const T& value) {
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return FormatValueForFailureMessage(
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typename internal::is_pointer<T>::type(), value);
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// These are needed as the above solution using is_pointer has the
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// limitation that T cannot be a type without external linkage, when
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// compiled using MSVC.
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template <typename T>
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inline String FormatForFailureMessage(const T& value) {
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return StreamableToString(value);
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// This overload makes sure that all pointers (including
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// those to char or wchar_t) are printed as raw pointers.
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template <typename T>
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inline String FormatForFailureMessage(T* pointer) {
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return StreamableToString(static_cast<const void*>(pointer));
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#endif // GTEST_NEEDS_IS_POINTER_
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// These overloaded versions handle narrow and wide characters.
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String FormatForFailureMessage(char ch);
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String FormatForFailureMessage(wchar_t wchar);
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// When this operand is a const char* or char*, and the other operand
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// is a ::std::string or ::string, we print this operand as a C string
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// rather than a pointer. We do the same for wide strings.
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// This internal macro is used to avoid duplicated code.
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#define GTEST_FORMAT_IMPL_(operand2_type, operand1_printer)\
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inline String FormatForComparisonFailureMessage(\
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operand2_type::value_type* str, const operand2_type& /*operand2*/) {\
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return operand1_printer(str);\
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inline String FormatForComparisonFailureMessage(\
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const operand2_type::value_type* str, const operand2_type& /*operand2*/) {\
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return operand1_printer(str);\
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#if GTEST_HAS_STD_STRING
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GTEST_FORMAT_IMPL_(::std::string, String::ShowCStringQuoted)
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#endif // GTEST_HAS_STD_STRING
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#if GTEST_HAS_STD_WSTRING
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GTEST_FORMAT_IMPL_(::std::wstring, String::ShowWideCStringQuoted)
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#endif // GTEST_HAS_STD_WSTRING
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#if GTEST_HAS_GLOBAL_STRING
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GTEST_FORMAT_IMPL_(::string, String::ShowCStringQuoted)
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#endif // GTEST_HAS_GLOBAL_STRING
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#if GTEST_HAS_GLOBAL_WSTRING
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GTEST_FORMAT_IMPL_(::wstring, String::ShowWideCStringQuoted)
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#endif // GTEST_HAS_GLOBAL_WSTRING
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#undef GTEST_FORMAT_IMPL_
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// Constructs and returns the message for an equality assertion
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// (e.g. ASSERT_EQ, EXPECT_STREQ, etc) failure.
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// The first four parameters are the expressions used in the assertion
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// and their values, as strings. For example, for ASSERT_EQ(foo, bar)
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// where foo is 5 and bar is 6, we have:
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// expected_expression: "foo"
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// actual_expression: "bar"
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// expected_value: "5"
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// The ignoring_case parameter is true iff the assertion is a
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// *_STRCASEEQ*. When it's true, the string " (ignoring case)" will
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// be inserted into the message.
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AssertionResult EqFailure(const char* expected_expression,
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const char* actual_expression,
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const String& expected_value,
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const String& actual_value,
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// This template class represents an IEEE floating-point number
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// (either single-precision or double-precision, depending on the
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// template parameters).
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// The purpose of this class is to do more sophisticated number
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// comparison. (Due to round-off error, etc, it's very unlikely that
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// two floating-points will be equal exactly. Hence a naive
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// comparison by the == operation often doesn't work.)
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// Format of IEEE floating-point:
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// The most-significant bit being the leftmost, an IEEE
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// floating-point looks like
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// sign_bit exponent_bits fraction_bits
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// Here, sign_bit is a single bit that designates the sign of the
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// For float, there are 8 exponent bits and 23 fraction bits.
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// For double, there are 11 exponent bits and 52 fraction bits.
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// More details can be found at
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// http://en.wikipedia.org/wiki/IEEE_floating-point_standard.
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// Template parameter:
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// RawType: the raw floating-point type (either float or double)
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template <typename RawType>
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class FloatingPoint {
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// Defines the unsigned integer type that has the same size as the
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// floating point number.
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typedef typename TypeWithSize<sizeof(RawType)>::UInt Bits;
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// # of bits in a number.
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static const size_t kBitCount = 8*sizeof(RawType);
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// # of fraction bits in a number.
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static const size_t kFractionBitCount =
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std::numeric_limits<RawType>::digits - 1;
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// # of exponent bits in a number.
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static const size_t kExponentBitCount = kBitCount - 1 - kFractionBitCount;
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// The mask for the sign bit.
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static const Bits kSignBitMask = static_cast<Bits>(1) << (kBitCount - 1);
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// The mask for the fraction bits.
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static const Bits kFractionBitMask =
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~static_cast<Bits>(0) >> (kExponentBitCount + 1);
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// The mask for the exponent bits.
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static const Bits kExponentBitMask = ~(kSignBitMask | kFractionBitMask);
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// How many ULP's (Units in the Last Place) we want to tolerate when
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// comparing two numbers. The larger the value, the more error we
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// allow. A 0 value means that two numbers must be exactly the same
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// to be considered equal.
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// The maximum error of a single floating-point operation is 0.5
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// units in the last place. On Intel CPU's, all floating-point
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// calculations are done with 80-bit precision, while double has 64
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// bits. Therefore, 4 should be enough for ordinary use.
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// See the following article for more details on ULP:
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// http://www.cygnus-software.com/papers/comparingfloats/comparingfloats.htm.
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static const size_t kMaxUlps = 4;
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// Constructs a FloatingPoint from a raw floating-point number.
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// On an Intel CPU, passing a non-normalized NAN (Not a Number)
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// around may change its bits, although the new value is guaranteed
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// to be also a NAN. Therefore, don't expect this constructor to
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// preserve the bits in x when x is a NAN.
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explicit FloatingPoint(const RawType& x) : value_(x) {}
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// Reinterprets a bit pattern as a floating-point number.
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// This function is needed to test the AlmostEquals() method.
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static RawType ReinterpretBits(const Bits bits) {
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// Returns the floating-point number that represent positive infinity.
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static RawType Infinity() {
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return ReinterpretBits(kExponentBitMask);
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// Non-static methods
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// Returns the bits that represents this number.
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const Bits &bits() const { return bits_; }
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// Returns the exponent bits of this number.
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Bits exponent_bits() const { return kExponentBitMask & bits_; }
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// Returns the fraction bits of this number.
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Bits fraction_bits() const { return kFractionBitMask & bits_; }
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// Returns the sign bit of this number.
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Bits sign_bit() const { return kSignBitMask & bits_; }
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// Returns true iff this is NAN (not a number).
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bool is_nan() const {
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// It's a NAN if the exponent bits are all ones and the fraction
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// bits are not entirely zeros.
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return (exponent_bits() == kExponentBitMask) && (fraction_bits() != 0);
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// Returns true iff this number is at most kMaxUlps ULP's away from
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// rhs. In particular, this function:
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// - returns false if either number is (or both are) NAN.
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// - treats really large numbers as almost equal to infinity.
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// - thinks +0.0 and -0.0 are 0 DLP's apart.
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bool AlmostEquals(const FloatingPoint& rhs) const {
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// The IEEE standard says that any comparison operation involving
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// a NAN must return false.
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if (is_nan() || rhs.is_nan()) return false;
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return DistanceBetweenSignAndMagnitudeNumbers(bits_, rhs.bits_) <= kMaxUlps;
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// Converts an integer from the sign-and-magnitude representation to
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// the biased representation. More precisely, let N be 2 to the
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// power of (kBitCount - 1), an integer x is represented by the
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// unsigned number x + N.
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// -N + 1 (the most negative number representable using
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// sign-and-magnitude) is represented by 1;
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// 0 is represented by N; and
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// N - 1 (the biggest number representable using
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// sign-and-magnitude) is represented by 2N - 1.
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// Read http://en.wikipedia.org/wiki/Signed_number_representations
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// for more details on signed number representations.
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static Bits SignAndMagnitudeToBiased(const Bits &sam) {
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if (kSignBitMask & sam) {
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// sam represents a negative number.
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// sam represents a positive number.
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return kSignBitMask | sam;
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// Given two numbers in the sign-and-magnitude representation,
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// returns the distance between them as an unsigned number.
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static Bits DistanceBetweenSignAndMagnitudeNumbers(const Bits &sam1,
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const Bits biased1 = SignAndMagnitudeToBiased(sam1);
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const Bits biased2 = SignAndMagnitudeToBiased(sam2);
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return (biased1 >= biased2) ? (biased1 - biased2) : (biased2 - biased1);
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RawType value_; // The raw floating-point number.
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Bits bits_; // The bits that represent the number.
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// Typedefs the instances of the FloatingPoint template class that we
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typedef FloatingPoint<float> Float;
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typedef FloatingPoint<double> Double;
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// In order to catch the mistake of putting tests that use different
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// test fixture classes in the same test case, we need to assign
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// unique IDs to fixture classes and compare them. The TypeId type is
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// used to hold such IDs. The user should treat TypeId as an opaque
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// type: the only operation allowed on TypeId values is to compare
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// them for equality using the == operator.
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typedef const void* TypeId;
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template <typename T>
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// dummy_ must not have a const type. Otherwise an overly eager
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// compiler (e.g. MSVC 7.1 & 8.0) may try to merge
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// TypeIdHelper<T>::dummy_ for different Ts as an "optimization".
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template <typename T>
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bool TypeIdHelper<T>::dummy_ = false;
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// GetTypeId<T>() returns the ID of type T. Different values will be
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// returned for different types. Calling the function twice with the
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// same type argument is guaranteed to return the same ID.
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template <typename T>
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// The compiler is required to allocate a different
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// TypeIdHelper<T>::dummy_ variable for each T used to instantiate
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// the template. Therefore, the address of dummy_ is guaranteed to
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return &(TypeIdHelper<T>::dummy_);
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// Returns the type ID of ::testing::Test. Always call this instead
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// of GetTypeId< ::testing::Test>() to get the type ID of
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// ::testing::Test, as the latter may give the wrong result due to a
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// suspected linker bug when compiling Google Test as a Mac OS X
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TypeId GetTestTypeId();
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// Defines the abstract factory interface that creates instances
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class TestFactoryBase {
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virtual ~TestFactoryBase() {}
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// Creates a test instance to run. The instance is both created and destroyed
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// within TestInfoImpl::Run()
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virtual Test* CreateTest() = 0;
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GTEST_DISALLOW_COPY_AND_ASSIGN_(TestFactoryBase);
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// This class provides implementation of TeastFactoryBase interface.
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// It is used in TEST and TEST_F macros.
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template <class TestClass>
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class TestFactoryImpl : public TestFactoryBase {
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virtual Test* CreateTest() { return new TestClass; }
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#ifdef GTEST_OS_WINDOWS
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// Predicate-formatters for implementing the HRESULT checking macros
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// {ASSERT|EXPECT}_HRESULT_{SUCCEEDED|FAILED}
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// We pass a long instead of HRESULT to avoid causing an
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// include dependency for the HRESULT type.
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AssertionResult IsHRESULTSuccess(const char* expr, long hr); // NOLINT
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AssertionResult IsHRESULTFailure(const char* expr, long hr); // NOLINT
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#endif // GTEST_OS_WINDOWS
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// Formats a source file path and a line number as they would appear
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// in a compiler error message.
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inline String FormatFileLocation(const char* file, int line) {
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const char* const file_name = file == NULL ? "unknown file" : file;
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return String::Format("%s:", file_name);
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return String::Format("%s(%d):", file_name, line);
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return String::Format("%s:%d:", file_name, line);
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// Types of SetUpTestCase() and TearDownTestCase() functions.
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typedef void (*SetUpTestCaseFunc)();
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typedef void (*TearDownTestCaseFunc)();
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// Creates a new TestInfo object and registers it with Google Test;
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// returns the created object.
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// test_case_name: name of the test case
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// name: name of the test
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// test_case_comment: a comment on the test case that will be included in
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// comment: a comment on the test that will be included in the
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// fixture_class_id: ID of the test fixture class
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// set_up_tc: pointer to the function that sets up the test case
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// tear_down_tc: pointer to the function that tears down the test case
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// factory: pointer to the factory that creates a test object.
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// The newly created TestInfo instance will assume
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// ownership of the factory object.
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TestInfo* MakeAndRegisterTestInfo(
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const char* test_case_name, const char* name,
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const char* test_case_comment, const char* comment,
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TypeId fixture_class_id,
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SetUpTestCaseFunc set_up_tc,
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TearDownTestCaseFunc tear_down_tc,
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TestFactoryBase* factory);
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#if defined(GTEST_HAS_TYPED_TEST) || defined(GTEST_HAS_TYPED_TEST_P)
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// State of the definition of a type-parameterized test case.
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class TypedTestCasePState {
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TypedTestCasePState() : registered_(false) {}
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// Adds the given test name to defined_test_names_ and return true
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// if the test case hasn't been registered; otherwise aborts the
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bool AddTestName(const char* file, int line, const char* case_name,
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const char* test_name) {
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fprintf(stderr, "%s Test %s must be defined before "
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"REGISTER_TYPED_TEST_CASE_P(%s, ...).\n",
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FormatFileLocation(file, line).c_str(), test_name, case_name);
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defined_test_names_.insert(test_name);
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// Verifies that registered_tests match the test names in
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// defined_test_names_; returns registered_tests if successful, or
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// aborts the program otherwise.
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const char* VerifyRegisteredTestNames(
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const char* file, int line, const char* registered_tests);
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::std::set<const char*> defined_test_names_;
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// Skips to the first non-space char after the first comma in 'str';
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// returns NULL if no comma is found in 'str'.
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inline const char* SkipComma(const char* str) {
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const char* comma = strchr(str, ',');
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while (isspace(*(++comma))) {}
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// Returns the prefix of 'str' before the first comma in it; returns
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// the entire string if it contains no comma.
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inline String GetPrefixUntilComma(const char* str) {
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const char* comma = strchr(str, ',');
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return comma == NULL ? String(str) : String(str, comma - str);
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// TypeParameterizedTest<Fixture, TestSel, Types>::Register()
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// registers a list of type-parameterized tests with Google Test. The
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// return value is insignificant - we just need to return something
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// such that we can call this function in a namespace scope.
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// Implementation note: The GTEST_TEMPLATE_ macro declares a template
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// template parameter. It's defined in gtest-type-util.h.
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template <GTEST_TEMPLATE_ Fixture, class TestSel, typename Types>
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class TypeParameterizedTest {
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// 'index' is the index of the test in the type list 'Types'
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// specified in INSTANTIATE_TYPED_TEST_CASE_P(Prefix, TestCase,
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// Types). Valid values for 'index' are [0, N - 1] where N is the
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static bool Register(const char* prefix, const char* case_name,
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const char* test_names, int index) {
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typedef typename Types::Head Type;
691
typedef Fixture<Type> FixtureClass;
692
typedef typename GTEST_BIND_(TestSel, Type) TestClass;
694
// First, registers the first type-parameterized test in the type
696
MakeAndRegisterTestInfo(
697
String::Format("%s%s%s/%d", prefix, prefix[0] == '\0' ? "" : "/",
698
case_name, index).c_str(),
699
GetPrefixUntilComma(test_names).c_str(),
700
String::Format("TypeParam = %s", GetTypeName<Type>().c_str()).c_str(),
702
GetTypeId<FixtureClass>(),
703
TestClass::SetUpTestCase,
704
TestClass::TearDownTestCase,
705
new TestFactoryImpl<TestClass>);
707
// Next, recurses (at compile time) with the tail of the type list.
708
return TypeParameterizedTest<Fixture, TestSel, typename Types::Tail>
709
::Register(prefix, case_name, test_names, index + 1);
713
// The base case for the compile time recursion.
714
template <GTEST_TEMPLATE_ Fixture, class TestSel>
715
class TypeParameterizedTest<Fixture, TestSel, Types0> {
717
static bool Register(const char* /*prefix*/, const char* /*case_name*/,
718
const char* /*test_names*/, int /*index*/) {
723
// TypeParameterizedTestCase<Fixture, Tests, Types>::Register()
724
// registers *all combinations* of 'Tests' and 'Types' with Google
725
// Test. The return value is insignificant - we just need to return
726
// something such that we can call this function in a namespace scope.
727
template <GTEST_TEMPLATE_ Fixture, typename Tests, typename Types>
728
class TypeParameterizedTestCase {
730
static bool Register(const char* prefix, const char* case_name,
731
const char* test_names) {
732
typedef typename Tests::Head Head;
734
// First, register the first test in 'Test' for each type in 'Types'.
735
TypeParameterizedTest<Fixture, Head, Types>::Register(
736
prefix, case_name, test_names, 0);
738
// Next, recurses (at compile time) with the tail of the test list.
739
return TypeParameterizedTestCase<Fixture, typename Tests::Tail, Types>
740
::Register(prefix, case_name, SkipComma(test_names));
744
// The base case for the compile time recursion.
745
template <GTEST_TEMPLATE_ Fixture, typename Types>
746
class TypeParameterizedTestCase<Fixture, Templates0, Types> {
748
static bool Register(const char* prefix, const char* case_name,
749
const char* test_names) {
754
#endif // GTEST_HAS_TYPED_TEST || GTEST_HAS_TYPED_TEST_P
756
// Returns the current OS stack trace as a String.
758
// The maximum number of stack frames to be included is specified by
759
// the gtest_stack_trace_depth flag. The skip_count parameter
760
// specifies the number of top frames to be skipped, which doesn't
761
// count against the number of frames to be included.
763
// For example, if Foo() calls Bar(), which in turn calls
764
// GetCurrentOsStackTraceExceptTop(..., 1), Foo() will be included in
765
// the trace but Bar() and GetCurrentOsStackTraceExceptTop() won't.
766
String GetCurrentOsStackTraceExceptTop(UnitTest* unit_test, int skip_count);
768
// Returns the number of failed test parts in the given test result object.
769
int GetFailedPartCount(const TestResult* result);
771
} // namespace internal
772
} // namespace testing
774
#define GTEST_MESSAGE_(message, result_type) \
775
::testing::internal::AssertHelper(result_type, __FILE__, __LINE__, message) \
776
= ::testing::Message()
778
#define GTEST_FATAL_FAILURE_(message) \
779
return GTEST_MESSAGE_(message, ::testing::TPRT_FATAL_FAILURE)
781
#define GTEST_NONFATAL_FAILURE_(message) \
782
GTEST_MESSAGE_(message, ::testing::TPRT_NONFATAL_FAILURE)
784
#define GTEST_SUCCESS_(message) \
785
GTEST_MESSAGE_(message, ::testing::TPRT_SUCCESS)
787
#define GTEST_TEST_THROW_(statement, expected_exception, fail) \
788
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
789
if (const char* gtest_msg = "") { \
790
bool gtest_caught_expected = false; \
794
catch (expected_exception const&) { \
795
gtest_caught_expected = true; \
798
gtest_msg = "Expected: " #statement " throws an exception of type " \
799
#expected_exception ".\n Actual: it throws a different " \
801
goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \
803
if (!gtest_caught_expected) { \
804
gtest_msg = "Expected: " #statement " throws an exception of type " \
805
#expected_exception ".\n Actual: it throws nothing."; \
806
goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \
809
GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__): \
812
#define GTEST_TEST_NO_THROW_(statement, fail) \
813
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
814
if (const char* gtest_msg = "") { \
819
gtest_msg = "Expected: " #statement " doesn't throw an exception.\n" \
820
" Actual: it throws."; \
821
goto GTEST_CONCAT_TOKEN_(gtest_label_testnothrow_, __LINE__); \
824
GTEST_CONCAT_TOKEN_(gtest_label_testnothrow_, __LINE__): \
827
#define GTEST_TEST_ANY_THROW_(statement, fail) \
828
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
829
if (const char* gtest_msg = "") { \
830
bool gtest_caught_any = false; \
835
gtest_caught_any = true; \
837
if (!gtest_caught_any) { \
838
gtest_msg = "Expected: " #statement " throws an exception.\n" \
839
" Actual: it doesn't."; \
840
goto GTEST_CONCAT_TOKEN_(gtest_label_testanythrow_, __LINE__); \
843
GTEST_CONCAT_TOKEN_(gtest_label_testanythrow_, __LINE__): \
847
#define GTEST_TEST_BOOLEAN_(boolexpr, booltext, actual, expected, fail) \
848
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
852
fail("Value of: " booltext "\n Actual: " #actual "\nExpected: " #expected)
854
#define GTEST_TEST_NO_FATAL_FAILURE_(statement, fail) \
855
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
856
if (const char* gtest_msg = "") { \
857
::testing::internal::HasNewFatalFailureHelper gtest_fatal_failure_checker; \
859
if (gtest_fatal_failure_checker.has_new_fatal_failure()) { \
860
gtest_msg = "Expected: " #statement " doesn't generate new fatal " \
861
"failures in the current thread.\n" \
862
" Actual: it does."; \
863
goto GTEST_CONCAT_TOKEN_(gtest_label_testnofatal_, __LINE__); \
866
GTEST_CONCAT_TOKEN_(gtest_label_testnofatal_, __LINE__): \
869
// Expands to the name of the class that implements the given test.
870
#define GTEST_TEST_CLASS_NAME_(test_case_name, test_name) \
871
test_case_name##_##test_name##_Test
873
// Helper macro for defining tests.
874
#define GTEST_TEST_(test_case_name, test_name, parent_class, parent_id)\
875
class GTEST_TEST_CLASS_NAME_(test_case_name, test_name) : public parent_class {\
877
GTEST_TEST_CLASS_NAME_(test_case_name, test_name)() {}\
879
virtual void TestBody();\
880
static ::testing::TestInfo* const test_info_;\
881
GTEST_DISALLOW_COPY_AND_ASSIGN_(\
882
GTEST_TEST_CLASS_NAME_(test_case_name, test_name));\
885
::testing::TestInfo* const GTEST_TEST_CLASS_NAME_(test_case_name, test_name)\
887
::testing::internal::MakeAndRegisterTestInfo(\
888
#test_case_name, #test_name, "", "", \
890
parent_class::SetUpTestCase, \
891
parent_class::TearDownTestCase, \
892
new ::testing::internal::TestFactoryImpl<\
893
GTEST_TEST_CLASS_NAME_(test_case_name, test_name)>);\
894
void GTEST_TEST_CLASS_NAME_(test_case_name, test_name)::TestBody()
896
#endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_