Update bundled gtest to latest version (1.3.0) and include it as a

nested autoconf package rather than as raw source.  This way we can
trivially update it again in the future.

Actually, this change doesn't even include gtest in protobuf's SVN.
Instead, we auto-download it when autogen.sh is invoked.  Note that
it will be included in release distributions, though.

TODO:
* Add a configure option to use the system's installed gtest rather
  than the bundled copy.  Apparently the gtest maintainers are working
  on some general-purpose autoconf macros which will do this
  automagically.
* Update MSVC project files.

1 files changed, 0 insertions, 569 deletions

diff --git a/src/gtest/internal/gtest-internal.h b/src/gtest/internal/gtest-internal.h
deleted file mode 100644
index 883981f6..00000000
--- a/src/gtest/internal/gtest-internal.h
+++ /dev/null
@@ -1,569 +0,0 @@
-// 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), eefacm@gmail.com (Sean Mcafee)
-//
-// The Google C++ Testing Framework (Google Test)
-//
-// This header file declares functions and macros used internally by
-// Google Test.  They are subject to change without notice.
-
-#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_
-#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_
-
-#if defined(__APPLE__) && !defined(GTEST_NOT_MAC_FRAMEWORK_MODE)
-// When using Google Test on the Mac as a framework, all the includes will be
-// in the framework headers folder along with gtest.h.
-// Define GTEST_NOT_MAC_FRAMEWORK_MODE if you are building Google Test on
-// the Mac and are not using it as a framework.
-// More info on frameworks available here:
-// http://developer.apple.com/documentation/MacOSX/Conceptual/BPFrameworks/
-// Concepts/WhatAreFrameworks.html.
-#include "gtest-port.h"  // NOLINT
-#else
-#include <gtest/internal/gtest-port.h>
-#endif  // defined(__APPLE__) && !defined(GTEST_NOT_MAC_FRAMEWORK_MODE)
-
-#ifdef GTEST_OS_LINUX
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-#endif  // GTEST_OS_LINUX
-
-#include <iomanip>  // NOLINT
-#include <limits>   // NOLINT
-
-#if defined(__APPLE__) && !defined(GTEST_NOT_MAC_FRAMEWORK_MODE)
-// When using Google Test on the Mac as a framework, all the includes will be
-// in the framework headers folder along with gtest.h.
-// Define GTEST_NOT_MAC_FRAMEWORK_MODE if you are building Google Test on
-// the Mac and are not using it as a framework.
-// More info on frameworks available here:
-// http://developer.apple.com/documentation/MacOSX/Conceptual/BPFrameworks/
-// Concepts/WhatAreFrameworks.html.
-#include "gtest-string.h"  // NOLINT
-#include "gtest-filepath.h"  // NOLINT
-#else
-#include <gtest/internal/gtest-string.h>
-#include <gtest/internal/gtest-filepath.h>
-#endif  // defined(__APPLE__) && !defined(GTEST_NOT_MAC_FRAMEWORK_MODE)
-
-// Due to C++ preprocessor weirdness, we need double indirection to
-// concatenate two tokens when one of them is __LINE__.  Writing
-//
-//   foo ## __LINE__
-//
-// will result in the token foo__LINE__, instead of foo followed by
-// the current line number.  For more details, see
-// http://www.parashift.com/c++-faq-lite/misc-technical-issues.html#faq-39.6
-#define GTEST_CONCAT_TOKEN(foo, bar) GTEST_CONCAT_TOKEN_IMPL(foo, bar)
-#define GTEST_CONCAT_TOKEN_IMPL(foo, bar) foo ## bar
-
-// Google Test defines the testing::Message class to allow construction of
-// test messages via the << operator.  The idea is that anything
-// streamable to std::ostream can be streamed to a testing::Message.
-// This allows a user to use his own types in Google Test assertions by
-// overloading the << operator.
-//
-// util/gtl/stl_logging-inl.h overloads << for STL containers.  These
-// overloads cannot be defined in the std namespace, as that will be
-// undefined behavior.  Therefore, they are defined in the global
-// namespace instead.
-//
-// C++'s symbol lookup rule (i.e. Koenig lookup) says that these
-// overloads are visible in either the std namespace or the global
-// namespace, but not other namespaces, including the testing
-// namespace which Google Test's Message class is in.
-//
-// To allow STL containers (and other types that has a << operator
-// defined in the global namespace) to be used in Google Test assertions,
-// testing::Message must access the custom << operator from the global
-// namespace.  Hence this helper function.
-//
-// Note: Jeffrey Yasskin suggested an alternative fix by "using
-// ::operator<<;" in the definition of Message's operator<<.  That fix
-// doesn't require a helper function, but unfortunately doesn't
-// compile with MSVC.
-template <typename T>
-inline void GTestStreamToHelper(std::ostream* os, const T& val) {
-  *os << val;
-}
-
-namespace testing {
-
-// Forward declaration of classes.
-
-class Message;                         // Represents a failure message.
-class TestCase;                        // A collection of related tests.
-class TestPartResult;                  // Result of a test part.
-class TestInfo;                        // Information about a test.
-class UnitTest;                        // A collection of test cases.
-class UnitTestEventListenerInterface;  // Listens to Google Test events.
-class AssertionResult;                 // Result of an assertion.
-
-namespace internal {
-
-struct TraceInfo;                      // Information about a trace point.
-class ScopedTrace;                     // Implements scoped trace.
-class TestInfoImpl;                    // Opaque implementation of TestInfo
-class TestResult;                      // Result of a single Test.
-class UnitTestImpl;                    // Opaque implementation of UnitTest
-
-template <typename E> class List;      // A generic list.
-template <typename E> class ListNode;  // A node in a generic list.
-
-// A secret type that Google Test users don't know about.  It has no
-// definition on purpose.  Therefore it's impossible to create a
-// Secret object, which is what we want.
-class Secret;
-
-// Two overloaded helpers for checking at compile time whether an
-// expression is a null pointer literal (i.e. NULL or any 0-valued
-// compile-time integral constant).  Their return values have
-// different sizes, so we can use sizeof() to test which version is
-// picked by the compiler.  These helpers have no implementations, as
-// we only need their signatures.
-//
-// Given IsNullLiteralHelper(x), the compiler will pick the first
-// version if x can be implicitly converted to Secret*, and pick the
-// second version otherwise.  Since Secret is a secret and incomplete
-// type, the only expression a user can write that has type Secret* is
-// a null pointer literal.  Therefore, we know that x is a null
-// pointer literal if and only if the first version is picked by the
-// compiler.
-char IsNullLiteralHelper(Secret* p);
-char (&IsNullLiteralHelper(...))[2];  // NOLINT
-
-// A compile-time bool constant that is true if and only if x is a
-// null pointer literal (i.e. NULL or any 0-valued compile-time
-// integral constant).
-#ifdef __SYMBIAN32__  // Symbian
-// Passing non-POD classes through ellipsis (...) crashes the ARM compiler.
-// The Nokia Symbian compiler tries to instantiate a copy constructor for
-// objects passed through ellipsis (...), failing for uncopyable objects.
-// Hence we define this to false (and lose support for NULL detection).
-#define GTEST_IS_NULL_LITERAL(x) false
-#else  // ! __SYMBIAN32__
-#define GTEST_IS_NULL_LITERAL(x) \
-    (sizeof(::testing::internal::IsNullLiteralHelper(x)) == 1)
-#endif  // __SYMBIAN32__
-
-// Appends the user-supplied message to the Google-Test-generated message.
-String AppendUserMessage(const String& gtest_msg,
-                         const Message& user_msg);
-
-// A helper class for creating scoped traces in user programs.
-class ScopedTrace {
- public:
-  // The c'tor pushes the given source file location and message onto
-  // a trace stack maintained by Google Test.
-  ScopedTrace(const char* file, int line, const Message& message);
-
-  // The d'tor pops the info pushed by the c'tor.
-  //
-  // Note that the d'tor is not virtual in order to be efficient.
-  // Don't inherit from ScopedTrace!
-  ~ScopedTrace();
-
- private:
-  GTEST_DISALLOW_COPY_AND_ASSIGN(ScopedTrace);
-} GTEST_ATTRIBUTE_UNUSED;  // A ScopedTrace object does its job in its
-                           // c'tor and d'tor.  Therefore it doesn't
-                           // need to be used otherwise.
-
-// Converts a streamable value to a String.  A NULL pointer is
-// converted to "(null)".  When the input value is a ::string,
-// ::std::string, ::wstring, or ::std::wstring object, each NUL
-// character in it is replaced with "\\0".
-// Declared here but defined in gtest.h, so that it has access
-// to the definition of the Message class, required by the ARM
-// compiler.
-template <typename T>
-String StreamableToString(const T& streamable);
-
-// Formats a value to be used in a failure message.
-
-#if defined (__SYMBIAN32__) || (defined (__DECCXX) && defined(__osf__))
-
-// These are needed as the Nokia Symbian Compiler and HP C++ on Tru64
-// cannot decide between const T& and const T* in a function template.
-// These compliers _can_ decide between class template specializations
-// for T and T*, so a tr1::type_traits-like is_pointer works, and we
-// can overload on that.
-
-// This overload makes sure that all pointers (including
-// those to char or wchar_t) are printed as raw pointers.
-template <typename T>
-inline String FormatValueForFailureMessage(internal::true_type dummy,
-                                           T* pointer) {
-  return StreamableToString(static_cast<const void*>(pointer));
-}
-
-template <typename T>
-inline String FormatValueForFailureMessage(internal::false_type dummy,
-                                           const T& value) {
-  return StreamableToString(value);
-}
-
-template <typename T>
-inline String FormatForFailureMessage(const T& value) {
-  return FormatValueForFailureMessage(
-      typename internal::is_pointer<T>::type(), value);
-}
-
-#else
-
-template <typename T>
-inline String FormatForFailureMessage(const T& value) {
-  return StreamableToString(value);
-}
-
-// This overload makes sure that all pointers (including
-// those to char or wchar_t) are printed as raw pointers.
-template <typename T>
-inline String FormatForFailureMessage(T* pointer) {
-  return StreamableToString(static_cast<const void*>(pointer));
-}
-
-#endif  // __SYMBIAN32__
-
-// These overloaded versions handle narrow and wide characters.
-String FormatForFailureMessage(char ch);
-
-// When this operand is a const char* or char*, and the other operand
-// is a ::std::string or ::string, we print this operand as a C string
-// rather than a pointer.  We do the same for wide strings.
-
-// This internal macro is used to avoid duplicated code.
-#define GTEST_FORMAT_IMPL(operand2_type, operand1_printer)\
-inline String FormatForComparisonFailureMessage(\
-    operand2_type::value_type* str, const operand2_type& operand2) {\
-  return operand1_printer(str);\
-}\
-inline String FormatForComparisonFailureMessage(\
-    const operand2_type::value_type* str, const operand2_type& operand2) {\
-  return operand1_printer(str);\
-}
-
-#if GTEST_HAS_STD_STRING
-GTEST_FORMAT_IMPL(::std::string, String::ShowCStringQuoted)
-#endif  // GTEST_HAS_STD_STRING
-#if GTEST_HAS_STD_WSTRING
-GTEST_FORMAT_IMPL(::std::wstring, String::ShowWideCStringQuoted)
-#endif  // GTEST_HAS_STD_WSTRING
-
-#if GTEST_HAS_GLOBAL_STRING
-GTEST_FORMAT_IMPL(::string, String::ShowCStringQuoted)
-#endif  // GTEST_HAS_GLOBAL_STRING
-#if GTEST_HAS_GLOBAL_WSTRING
-GTEST_FORMAT_IMPL(::wstring, String::ShowWideCStringQuoted)
-#endif  // GTEST_HAS_GLOBAL_WSTRING
-
-#undef GTEST_FORMAT_IMPL
-
-// Constructs and returns the message for an equality assertion
-// (e.g. ASSERT_EQ, EXPECT_STREQ, etc) failure.
-//
-// The first four parameters are the expressions used in the assertion
-// and their values, as strings.  For example, for ASSERT_EQ(foo, bar)
-// where foo is 5 and bar is 6, we have:
-//
-//   expected_expression: "foo"
-//   actual_expression:   "bar"
-//   expected_value:      "5"
-//   actual_value:        "6"
-//
-// The ignoring_case parameter is true iff the assertion is a
-// *_STRCASEEQ*.  When it's true, the string " (ignoring case)" will
-// be inserted into the message.
-AssertionResult EqFailure(const char* expected_expression,
-                          const char* actual_expression,
-                          const String& expected_value,
-                          const String& actual_value,
-                          bool ignoring_case);
-
-
-// This template class represents an IEEE floating-point number
-// (either single-precision or double-precision, depending on the
-// template parameters).
-//
-// The purpose of this class is to do more sophisticated number
-// comparison.  (Due to round-off error, etc, it's very unlikely that
-// two floating-points will be equal exactly.  Hence a naive
-// comparison by the == operation often doesn't work.)
-//
-// Format of IEEE floating-point:
-//
-//   The most-significant bit being the leftmost, an IEEE
-//   floating-point looks like
-//
-//     sign_bit exponent_bits fraction_bits
-//
-//   Here, sign_bit is a single bit that designates the sign of the
-//   number.
-//
-//   For float, there are 8 exponent bits and 23 fraction bits.
-//
-//   For double, there are 11 exponent bits and 52 fraction bits.
-//
-//   More details can be found at
-//   http://en.wikipedia.org/wiki/IEEE_floating-point_standard.
-//
-// Template parameter:
-//
-//   RawType: the raw floating-point type (either float or double)
-template <typename RawType>
-class FloatingPoint {
- public:
-  // Defines the unsigned integer type that has the same size as the
-  // floating point number.
-  typedef typename TypeWithSize<sizeof(RawType)>::UInt Bits;
-
-  // Constants.
-
-  // # of bits in a number.
-  static const size_t kBitCount = 8*sizeof(RawType);
-
-  // # of fraction bits in a number.
-  static const size_t kFractionBitCount =
-    std::numeric_limits<RawType>::digits - 1;
-
-  // # of exponent bits in a number.
-  static const size_t kExponentBitCount = kBitCount - 1 - kFractionBitCount;
-
-  // The mask for the sign bit.
-  static const Bits kSignBitMask = static_cast<Bits>(1) << (kBitCount - 1);
-
-  // The mask for the fraction bits.
-  static const Bits kFractionBitMask =
-    ~static_cast<Bits>(0) >> (kExponentBitCount + 1);
-
-  // The mask for the exponent bits.
-  static const Bits kExponentBitMask = ~(kSignBitMask | kFractionBitMask);
-
-  // How many ULP's (Units in the Last Place) we want to tolerate when
-  // comparing two numbers.  The larger the value, the more error we
-  // allow.  A 0 value means that two numbers must be exactly the same
-  // to be considered equal.
-  //
-  // The maximum error of a single floating-point operation is 0.5
-  // units in the last place.  On Intel CPU's, all floating-point
-  // calculations are done with 80-bit precision, while double has 64
-  // bits.  Therefore, 4 should be enough for ordinary use.
-  //
-  // See the following article for more details on ULP:
-  // http://www.cygnus-software.com/papers/comparingfloats/comparingfloats.htm.
-  static const size_t kMaxUlps = 4;
-
-  // Constructs a FloatingPoint from a raw floating-point number.
-  //
-  // On an Intel CPU, passing a non-normalized NAN (Not a Number)
-  // around may change its bits, although the new value is guaranteed
-  // to be also a NAN.  Therefore, don't expect this constructor to
-  // preserve the bits in x when x is a NAN.
-  explicit FloatingPoint(const RawType& x) : value_(x) {}
-
-  // Static methods
-
-  // Reinterprets a bit pattern as a floating-point number.
-  //
-  // This function is needed to test the AlmostEquals() method.
-  static RawType ReinterpretBits(const Bits bits) {
-    FloatingPoint fp(0);
-    fp.bits_ = bits;
-    return fp.value_;
-  }
-
-  // Returns the floating-point number that represent positive infinity.
-  static RawType Infinity() {
-    return ReinterpretBits(kExponentBitMask);
-  }
-
-  // Non-static methods
-
-  // Returns the bits that represents this number.
-  const Bits &bits() const { return bits_; }
-
-  // Returns the exponent bits of this number.
-  Bits exponent_bits() const { return kExponentBitMask & bits_; }
-
-  // Returns the fraction bits of this number.
-  Bits fraction_bits() const { return kFractionBitMask & bits_; }
-
-  // Returns the sign bit of this number.
-  Bits sign_bit() const { return kSignBitMask & bits_; }
-
-  // Returns true iff this is NAN (not a number).
-  bool is_nan() const {
-    // It's a NAN if the exponent bits are all ones and the fraction
-    // bits are not entirely zeros.
-    return (exponent_bits() == kExponentBitMask) && (fraction_bits() != 0);
-  }
-
-  // Returns true iff this number is at most kMaxUlps ULP's away from
-  // rhs.  In particular, this function:
-  //
-  //   - returns false if either number is (or both are) NAN.
-  //   - treats really large numbers as almost equal to infinity.
-  //   - thinks +0.0 and -0.0 are 0 DLP's apart.
-  bool AlmostEquals(const FloatingPoint& rhs) const {
-    // The IEEE standard says that any comparison operation involving
-    // a NAN must return false.
-    if (is_nan() || rhs.is_nan()) return false;
-
-    return DistanceBetweenSignAndMagnitudeNumbers(bits_, rhs.bits_) <= kMaxUlps;
-  }
-
- private:
-  // Converts an integer from the sign-and-magnitude representation to
-  // the biased representation.  More precisely, let N be 2 to the
-  // power of (kBitCount - 1), an integer x is represented by the
-  // unsigned number x + N.
-  //
-  // For instance,
-  //
-  //   -N + 1 (the most negative number representable using
-  //          sign-and-magnitude) is represented by 1;
-  //   0      is represented by N; and
-  //   N - 1  (the biggest number representable using
-  //          sign-and-magnitude) is represented by 2N - 1.
-  //
-  // Read http://en.wikipedia.org/wiki/Signed_number_representations
-  // for more details on signed number representations.
-  static Bits SignAndMagnitudeToBiased(const Bits &sam) {
-    if (kSignBitMask & sam) {
-      // sam represents a negative number.
-      return ~sam + 1;
-    } else {
-      // sam represents a positive number.
-      return kSignBitMask | sam;
-    }
-  }
-
-  // Given two numbers in the sign-and-magnitude representation,
-  // returns the distance between them as an unsigned number.
-  static Bits DistanceBetweenSignAndMagnitudeNumbers(const Bits &sam1,
-                                                     const Bits &sam2) {
-    const Bits biased1 = SignAndMagnitudeToBiased(sam1);
-    const Bits biased2 = SignAndMagnitudeToBiased(sam2);
-    return (biased1 >= biased2) ? (biased1 - biased2) : (biased2 - biased1);
-  }
-
-  union {
-    RawType value_;  // The raw floating-point number.
-    Bits bits_;      // The bits that represent the number.
-  };
-};
-
-// Typedefs the instances of the FloatingPoint template class that we
-// care to use.
-typedef FloatingPoint<float> Float;
-typedef FloatingPoint<double> Double;
-
-// In order to catch the mistake of putting tests that use different
-// test fixture classes in the same test case, we need to assign
-// unique IDs to fixture classes and compare them.  The TypeId type is
-// used to hold such IDs.  The user should treat TypeId as an opaque
-// type: the only operation allowed on TypeId values is to compare
-// them for equality using the == operator.
-typedef void* TypeId;
-
-// GetTypeId<T>() returns the ID of type T.  Different values will be
-// returned for different types.  Calling the function twice with the
-// same type argument is guaranteed to return the same ID.
-template <typename T>
-inline TypeId GetTypeId() {
-  static bool dummy = false;
-  // The compiler is required to create an instance of the static
-  // variable dummy for each T used to instantiate the template.
-  // Therefore, the address of dummy is guaranteed to be unique.
-  return &dummy;
-}
-
-#ifdef GTEST_OS_WINDOWS
-
-// Predicate-formatters for implementing the HRESULT checking macros
-// {ASSERT|EXPECT}_HRESULT_{SUCCEEDED|FAILED}
-// We pass a long instead of HRESULT to avoid causing an
-// include dependency for the HRESULT type.
-AssertionResult IsHRESULTSuccess(const char* expr, long hr);  // NOLINT
-AssertionResult IsHRESULTFailure(const char* expr, long hr);  // NOLINT
-
-#endif  // GTEST_OS_WINDOWS
-
-}  // namespace internal
-}  // namespace testing
-
-#define GTEST_MESSAGE(message, result_type) \
-  ::testing::internal::AssertHelper(result_type, __FILE__, __LINE__, message) \
-    = ::testing::Message()
-
-#define GTEST_FATAL_FAILURE(message) \
-  return GTEST_MESSAGE(message, ::testing::TPRT_FATAL_FAILURE)
-
-#define GTEST_NONFATAL_FAILURE(message) \
-  GTEST_MESSAGE(message, ::testing::TPRT_NONFATAL_FAILURE)
-
-#define GTEST_SUCCESS(message) \
-  GTEST_MESSAGE(message, ::testing::TPRT_SUCCESS)
-
-#define GTEST_TEST_BOOLEAN(boolexpr, booltext, actual, expected, fail) \
-  GTEST_AMBIGUOUS_ELSE_BLOCKER \
-  if (boolexpr) \
-    ; \
-  else \
-    fail("Value of: " booltext "\n  Actual: " #actual "\nExpected: " #expected)
-
-// Helper macro for defining tests.
-#define GTEST_TEST(test_case_name, test_name, parent_class)\
-class test_case_name##_##test_name##_Test : public parent_class {\
- public:\
-  test_case_name##_##test_name##_Test() {}\
-  static ::testing::Test* NewTest() {\
-    return new test_case_name##_##test_name##_Test;\
-  }\
- private:\
-  virtual void TestBody();\
-  static ::testing::TestInfo* const test_info_;\
-  GTEST_DISALLOW_COPY_AND_ASSIGN(test_case_name##_##test_name##_Test);\
-};\
-\
-::testing::TestInfo* const test_case_name##_##test_name##_Test::test_info_ =\
-  ::testing::TestInfo::MakeAndRegisterInstance(\
-    #test_case_name, \
-    #test_name, \
-    ::testing::internal::GetTypeId< parent_class >(), \
-    parent_class::SetUpTestCase, \
-    parent_class::TearDownTestCase, \
-    test_case_name##_##test_name##_Test::NewTest);\
-void test_case_name##_##test_name##_Test::TestBody()
-
-
-#endif  // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_INTERNAL_H_