diff --git a/internal/ceres/gmock/gmock.h b/internal/ceres/gmock/gmock.h
index e8dd7fc..681f9e2 100644
--- a/internal/ceres/gmock/gmock.h
+++ b/internal/ceres/gmock/gmock.h
@@ -219,8 +219,11 @@
 // Author: vadimb@google.com (Vadim Berman)
 //
 // Low-level types and utilities for porting Google Mock to various
-// platforms.  They are subject to change without notice.  DO NOT USE
-// THEM IN USER CODE.
+// platforms.  All macros ending with _ and symbols defined in an
+// internal namespace are subject to change without notice.  Code
+// outside Google Mock MUST NOT USE THEM DIRECTLY.  Macros that don't
+// end with _ are part of Google Mock's public API and can be used by
+// code outside Google Mock.
 
 #ifndef GMOCK_INCLUDE_GMOCK_INTERNAL_GMOCK_PORT_H_
 #define GMOCK_INCLUDE_GMOCK_INTERNAL_GMOCK_PORT_H_
@@ -229,8 +232,13 @@
 #include <stdlib.h>
 #include <iostream>
 
-// Most of the types needed for porting Google Mock are also required
-// for Google Test and are defined in gtest-port.h.
+// Most of the utilities needed for porting Google Mock are also
+// required for Google Test and are defined in gtest-port.h.
+//
+// Note to maintainers: to reduce code duplication, prefer adding
+// portability utilities to Google Test's gtest-port.h instead of
+// here, as Google Mock depends on Google Test.  Only add a utility
+// here if it's truly specific to Google Mock.
 #include "gtest/gtest.h"
 
 // To avoid conditional compilation everywhere, we make it
@@ -815,17 +823,30 @@
   typedef const T* type;
 };
 
-// Invalid<T>() returns an invalid value of type T.  This is useful
+// Disable MSVC warnings for infinite recursion, since in this case the
+// the recursion is unreachable.
+#ifdef _MSC_VER
+# pragma warning(push)
+# pragma warning(disable:4717)
+#endif
+
+// Invalid<T>() is usable as an expression of type T, but will terminate
+// the program with an assertion failure if actually run.  This is useful
 // when a value of type T is needed for compilation, but the statement
 // will not really be executed (or we don't care if the statement
 // crashes).
 template <typename T>
 inline T Invalid() {
-  return const_cast<typename remove_reference<T>::type&>(
-      *static_cast<volatile typename remove_reference<T>::type*>(NULL));
+  Assert(false, "", -1, "Internal error: attempt to return invalid value");
+  // This statement is unreachable, and would never terminate even if it
+  // could be reached. It is provided only to placate compiler warnings
+  // about missing return statements.
+  return Invalid<T>();
 }
-template <>
-inline void Invalid<void>() {}
+
+#ifdef _MSC_VER
+# pragma warning(pop)
+#endif
 
 // Given a raw type (i.e. having no top-level reference or const
 // modifier) RawContainer that's either an STL-style container or a
@@ -1068,18 +1089,27 @@
   // Sets the default value for type T; requires T to be
   // copy-constructable and have a public destructor.
   static void Set(T x) {
-    delete value_;
-    value_ = new T(x);
+    delete producer_;
+    producer_ = new FixedValueProducer(x);
+  }
+
+  // Provides a factory function to be called to generate the default value.
+  // This method can be used even if T is only move-constructible, but it is not
+  // limited to that case.
+  typedef T (*FactoryFunction)();
+  static void SetFactory(FactoryFunction factory) {
+    delete producer_;
+    producer_ = new FactoryValueProducer(factory);
   }
 
   // Unsets the default value for type T.
   static void Clear() {
-    delete value_;
-    value_ = NULL;
+    delete producer_;
+    producer_ = NULL;
   }
 
   // Returns true iff the user has set the default value for type T.
-  static bool IsSet() { return value_ != NULL; }
+  static bool IsSet() { return producer_ != NULL; }
 
   // Returns true if T has a default return value set by the user or there
   // exists a built-in default value.
@@ -1088,15 +1118,42 @@
   }
 
   // Returns the default value for type T if the user has set one;
-  // otherwise returns the built-in default value if there is one;
-  // otherwise aborts the process.
+  // otherwise returns the built-in default value. Requires that Exists()
+  // is true, which ensures that the return value is well-defined.
   static T Get() {
-    return value_ == NULL ?
-        internal::BuiltInDefaultValue<T>::Get() : *value_;
+    return producer_ == NULL ?
+        internal::BuiltInDefaultValue<T>::Get() : producer_->Produce();
   }
 
  private:
-  static const T* value_;
+  class ValueProducer {
+   public:
+    virtual ~ValueProducer() {}
+    virtual T Produce() = 0;
+  };
+
+  class FixedValueProducer : public ValueProducer {
+   public:
+    explicit FixedValueProducer(T value) : value_(value) {}
+    virtual T Produce() { return value_; }
+
+   private:
+    const T value_;
+    GTEST_DISALLOW_COPY_AND_ASSIGN_(FixedValueProducer);
+  };
+
+  class FactoryValueProducer : public ValueProducer {
+   public:
+    explicit FactoryValueProducer(FactoryFunction factory)
+        : factory_(factory) {}
+    virtual T Produce() { return factory_(); }
+
+   private:
+    const FactoryFunction factory_;
+    GTEST_DISALLOW_COPY_AND_ASSIGN_(FactoryValueProducer);
+  };
+
+  static ValueProducer* producer_;
 };
 
 // This partial specialization allows a user to set default values for
@@ -1146,7 +1203,7 @@
 
 // Points to the user-set default value for type T.
 template <typename T>
-const T* DefaultValue<T>::value_ = NULL;
+typename DefaultValue<T>::ValueProducer* DefaultValue<T>::producer_ = NULL;
 
 // Points to the user-set default value for type T&.
 template <typename T>
@@ -4704,8 +4761,8 @@
 #include <vector>
 
 
-#if GTEST_LANG_CXX11
-#include <initializer_list>  // NOLINT -- must be after gtest.h
+#if GTEST_HAS_STD_INITIALIZER_LIST_
+# include <initializer_list>  // NOLINT -- must be after gtest.h
 #endif
 
 namespace testing {
@@ -5141,7 +5198,7 @@
 template <typename T, typename M>
 class MatcherCastImpl {
  public:
-  static Matcher<T> Cast(M polymorphic_matcher_or_value) {
+  static Matcher<T> Cast(const M& polymorphic_matcher_or_value) {
     // M can be a polymorhic matcher, in which case we want to use
     // its conversion operator to create Matcher<T>.  Or it can be a value
     // that should be passed to the Matcher<T>'s constructor.
@@ -5162,14 +5219,14 @@
   }
 
  private:
-  static Matcher<T> CastImpl(M value, BooleanConstant<false>) {
+  static Matcher<T> CastImpl(const M& value, BooleanConstant<false>) {
     // M can't be implicitly converted to Matcher<T>, so M isn't a polymorphic
     // matcher.  It must be a value then.  Use direct initialization to create
     // a matcher.
     return Matcher<T>(ImplicitCast_<T>(value));
   }
 
-  static Matcher<T> CastImpl(M polymorphic_matcher_or_value,
+  static Matcher<T> CastImpl(const M& polymorphic_matcher_or_value,
                              BooleanConstant<true>) {
     // M is implicitly convertible to Matcher<T>, which means that either
     // M is a polymorhpic matcher or Matcher<T> has an implicit constructor
@@ -5234,7 +5291,7 @@
 // matcher m and returns a Matcher<T>.  It compiles only when T can be
 // statically converted to the argument type of m.
 template <typename T, typename M>
-inline Matcher<T> MatcherCast(M matcher) {
+inline Matcher<T> MatcherCast(const M& matcher) {
   return internal::MatcherCastImpl<T, M>::Cast(matcher);
 }
 
@@ -5251,7 +5308,7 @@
   // This overload handles polymorphic matchers and values only since
   // monomorphic matchers are handled by the next one.
   template <typename M>
-  static inline Matcher<T> Cast(M polymorphic_matcher_or_value) {
+  static inline Matcher<T> Cast(const M& polymorphic_matcher_or_value) {
     return internal::MatcherCastImpl<T, M>::Cast(polymorphic_matcher_or_value);
   }
 
@@ -8002,7 +8059,7 @@
   return ElementsAreArray(vec.begin(), vec.end());
 }
 
-#if GTEST_LANG_CXX11
+#if GTEST_HAS_STD_INITIALIZER_LIST_
 template <typename T>
 inline internal::ElementsAreArrayMatcher<T>
 ElementsAreArray(::std::initializer_list<T> xs) {
@@ -8044,7 +8101,7 @@
   return UnorderedElementsAreArray(vec.begin(), vec.end());
 }
 
-#if GTEST_LANG_CXX11
+#if GTEST_HAS_STD_INITIALIZER_LIST_
 template <typename T>
 inline internal::UnorderedElementsAreArrayMatcher<T>
 UnorderedElementsAreArray(::std::initializer_list<T> xs) {
@@ -8771,7 +8828,7 @@
   // arguments.  This function can be safely called from multiple
   // threads concurrently.  The caller is responsible for deleting the
   // result.
-  const UntypedActionResultHolderBase* UntypedInvokeWith(
+  UntypedActionResultHolderBase* UntypedInvokeWith(
       const void* untyped_args)
           GTEST_LOCK_EXCLUDED_(g_gmock_mutex);
 
@@ -9849,6 +9906,58 @@
   GTEST_DISALLOW_ASSIGN_(MockSpec);
 };  // class MockSpec
 
+// Wrapper type for generically holding an ordinary value or lvalue reference.
+// If T is not a reference type, it must be copyable or movable.
+// ReferenceOrValueWrapper<T> is movable, and will also be copyable unless
+// T is a move-only value type (which means that it will always be copyable
+// if the current platform does not support move semantics).
+//
+// The primary template defines handling for values, but function header
+// comments describe the contract for the whole template (including
+// specializations).
+template <typename T>
+class ReferenceOrValueWrapper {
+ public:
+  // Constructs a wrapper from the given value/reference.
+  explicit ReferenceOrValueWrapper(T value)
+      : value_(GTEST_MOVE_(value)) {}
+
+  // Unwraps and returns the underlying value/reference, exactly as
+  // originally passed. The behavior of calling this more than once on
+  // the same object is unspecified.
+  T Unwrap() {
+    return GTEST_MOVE_(value_);
+  }
+
+  // Provides nondestructive access to the underlying value/reference.
+  // Always returns a const reference (more precisely,
+  // const RemoveReference<T>&). The behavior of calling this after
+  // calling Unwrap on the same object is unspecified.
+  const T& Peek() const {
+    return value_;
+  }
+
+ private:
+  T value_;
+};
+
+// Specialization for lvalue reference types. See primary template
+// for documentation.
+template <typename T>
+class ReferenceOrValueWrapper<T&> {
+ public:
+  // Workaround for debatable pass-by-reference lint warning (c-library-team
+  // policy precludes NOLINT in this context)
+  typedef T& reference;
+  explicit ReferenceOrValueWrapper(reference ref)
+      : value_ptr_(&ref) {}
+  T& Unwrap() { return *value_ptr_; }
+  const T& Peek() const { return *value_ptr_; }
+
+ private:
+  T* value_ptr_;
+};
+
 // MSVC warns about using 'this' in base member initializer list, so
 // we need to temporarily disable the warning.  We have to do it for
 // the entire class to suppress the warning, even though it's about
@@ -9880,23 +9989,16 @@
 template <typename T>
 class ActionResultHolder : public UntypedActionResultHolderBase {
  public:
-  explicit ActionResultHolder(T a_value) : value_(a_value) {}
-
-  // The compiler-generated copy constructor and assignment operator
-  // are exactly what we need, so we don't need to define them.
-
-  // Returns the held value and deletes this object.
-  T GetValueAndDelete() const {
-    T retval(value_);
-    delete this;
-    return retval;
+  // Returns the held value. Must not be called more than once.
+  T Unwrap() {
+    return result_.Unwrap();
   }
 
   // Prints the held value as an action's result to os.
   virtual void PrintAsActionResult(::std::ostream* os) const {
     *os << "\n          Returns: ";
     // T may be a reference type, so we don't use UniversalPrint().
-    UniversalPrinter<T>::Print(value_, os);
+    UniversalPrinter<T>::Print(result_.Peek(), os);
   }
 
   // Performs the given mock function's default action and returns the
@@ -9906,8 +10008,8 @@
       const FunctionMockerBase<F>* func_mocker,
       const typename Function<F>::ArgumentTuple& args,
       const string& call_description) {
-    return new ActionResultHolder(
-        func_mocker->PerformDefaultAction(args, call_description));
+    return new ActionResultHolder(Wrapper(
+        func_mocker->PerformDefaultAction(args, call_description)));
   }
 
   // Performs the given action and returns the result in a new-ed
@@ -9916,42 +10018,52 @@
   static ActionResultHolder*
   PerformAction(const Action<F>& action,
                 const typename Function<F>::ArgumentTuple& args) {
-    return new ActionResultHolder(action.Perform(args));
+    return new ActionResultHolder(Wrapper(action.Perform(args)));
   }
 
  private:
-  T value_;
+  typedef ReferenceOrValueWrapper<T> Wrapper;
 
-  // T could be a reference type, so = isn't supported.
-  GTEST_DISALLOW_ASSIGN_(ActionResultHolder);
+  explicit ActionResultHolder(Wrapper result)
+      : result_(GTEST_MOVE_(result)) {}
+
+  Wrapper result_;
+
+  GTEST_DISALLOW_COPY_AND_ASSIGN_(ActionResultHolder);
 };
 
 // Specialization for T = void.
 template <>
 class ActionResultHolder<void> : public UntypedActionResultHolderBase {
  public:
-  void GetValueAndDelete() const { delete this; }
+  void Unwrap() { }
 
   virtual void PrintAsActionResult(::std::ostream* /* os */) const {}
 
-  // Performs the given mock function's default action and returns NULL;
+  // Performs the given mock function's default action and returns ownership
+  // of an empty ActionResultHolder*.
   template <typename F>
   static ActionResultHolder* PerformDefaultAction(
       const FunctionMockerBase<F>* func_mocker,
       const typename Function<F>::ArgumentTuple& args,
       const string& call_description) {
     func_mocker->PerformDefaultAction(args, call_description);
-    return NULL;
+    return new ActionResultHolder;
   }
 
-  // Performs the given action and returns NULL.
+  // Performs the given action and returns ownership of an empty
+  // ActionResultHolder*.
   template <typename F>
   static ActionResultHolder* PerformAction(
       const Action<F>& action,
       const typename Function<F>::ArgumentTuple& args) {
     action.Perform(args);
-    return NULL;
+    return new ActionResultHolder;
   }
+
+ private:
+  ActionResultHolder() {}
+  GTEST_DISALLOW_COPY_AND_ASSIGN_(ActionResultHolder);
 };
 
 // The base of the function mocker class for the given function type.
@@ -10086,8 +10198,9 @@
   // threads concurrently.
   Result InvokeWith(const ArgumentTuple& args)
         GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
-    return static_cast<const ResultHolder*>(
-        this->UntypedInvokeWith(&args))->GetValueAndDelete();
+    scoped_ptr<ResultHolder> holder(
+        DownCast_<ResultHolder*>(this->UntypedInvokeWith(&args)));
+    return holder->Unwrap();
   }
 
   // Adds and returns a default action spec for this mock function.
@@ -13968,6 +14081,20 @@
   GTEST_DISALLOW_ASSIGN_(InvokeMethodAction);
 };
 
+// An internal replacement for std::copy which mimics its behavior. This is
+// necessary because Visual Studio deprecates ::std::copy, issuing warning 4996.
+// However Visual Studio 2010 and later do not honor #pragmas which disable that
+// warning.
+template<typename InputIterator, typename OutputIterator>
+inline OutputIterator CopyElements(InputIterator first,
+                                   InputIterator last,
+                                   OutputIterator output) {
+  for (; first != last; ++first, ++output) {
+    *output = *first;
+  }
+  return output;
+}
+
 }  // namespace internal
 
 // Various overloads for Invoke().
@@ -14066,15 +14193,11 @@
 ACTION_TEMPLATE(SetArrayArgument,
                 HAS_1_TEMPLATE_PARAMS(int, k),
                 AND_2_VALUE_PARAMS(first, last)) {
-  // Microsoft compiler deprecates ::std::copy, so we want to suppress warning
-  // 4996 (Function call with parameters that may be unsafe) there.
+  // Visual Studio deprecates ::std::copy, so we use our own copy in that case.
 #ifdef _MSC_VER
-# pragma warning(push)          // Saves the current warning state.
-# pragma warning(disable:4996)  // Temporarily disables warning 4996.
-#endif
+  internal::CopyElements(first, last, ::std::tr1::get<k>(args));
+#else
   ::std::copy(first, last, ::std::tr1::get<k>(args));
-#ifdef _MSC_VER
-# pragma warning(pop)           // Restores the warning state.
 #endif
 }
 
diff --git a/internal/ceres/gmock_gtest_all.cc b/internal/ceres/gmock_gtest_all.cc
index cd56295..5b7ee84 100644
--- a/internal/ceres/gmock_gtest_all.cc
+++ b/internal/ceres/gmock_gtest_all.cc
@@ -4364,7 +4364,7 @@
   int num_disabled = unit_test.reportable_disabled_test_count();
   if (num_disabled && !GTEST_FLAG(also_run_disabled_tests)) {
     if (!num_failures) {
-      printf("\n");  // Add a spacer if no LINEAR_SOLVER_FAILURE banner is displayed.
+      printf("\n");  // Add a spacer if no FAILURE banner is displayed.
     }
     ColoredPrintf(COLOR_YELLOW,
                   "  YOU HAVE %d DISABLED %s\n\n",
@@ -7904,7 +7904,6 @@
 // of them.
 const char kPathSeparator = '\\';
 const char kAlternatePathSeparator = '/';
-const char kPathSeparatorString[] = "\\";
 const char kAlternatePathSeparatorString[] = "/";
 # if GTEST_OS_WINDOWS_MOBILE
 // Windows CE doesn't have a current directory. You should not use
@@ -9068,6 +9067,8 @@
 using ::std::ostream;
 
 // Prints a segment of bytes in the given object.
+GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_
+GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
 void PrintByteSegmentInObjectTo(const unsigned char* obj_bytes, size_t start,
                                 size_t count, ostream* os) {
   char text[5] = "";
@@ -9264,6 +9265,8 @@
 // The array starts at begin, the length is len, it may include '\0' characters
 // and may not be NUL-terminated.
 template <typename CharType>
+GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_
+GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
 static void PrintCharsAsStringTo(
     const CharType* begin, size_t len, ostream* os) {
   const char* const kQuoteBegin = sizeof(CharType) == 1 ? "\"" : "L\"";
@@ -9285,6 +9288,8 @@
 // Prints a (const) char/wchar_t array of 'len' elements, starting at address
 // 'begin'.  CharType must be either char or wchar_t.
 template <typename CharType>
+GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_
+GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
 static void UniversalPrintCharArray(
     const CharType* begin, size_t len, ostream* os) {
   // The code
@@ -10699,7 +10704,14 @@
       Log(kInfo, msg, 3);
       break;
     case kWarn:
-      Log(kWarning, msg, 3);
+      Log(kWarning,
+          msg +
+          "\nNOTE: You can safely ignore the above warning unless this "
+          "call should not happen.  Do not suppress it by blindly adding "
+          "an EXPECT_CALL() if you don't mean to enforce the call.  "
+          "See http://code.google.com/p/googlemock/wiki/CookBook#"
+          "Knowing_When_to_Expect for details.",
+          3);
       break;
     default:  // FAIL
       Expect(false, NULL, -1, msg);
@@ -10774,7 +10786,7 @@
 // Calculates the result of invoking this mock function with the given
 // arguments, prints it, and returns it.  The caller is responsible
 // for deleting the result.
-const UntypedActionResultHolderBase*
+UntypedActionResultHolderBase*
 UntypedFunctionMockerBase::UntypedInvokeWith(const void* const untyped_args)
     GTEST_LOCK_EXCLUDED_(g_gmock_mutex) {
   if (untyped_expectations_.size() == 0) {
@@ -10812,7 +10824,7 @@
     this->UntypedDescribeUninterestingCall(untyped_args, &ss);
 
     // Calculates the function result.
-    const UntypedActionResultHolderBase* const result =
+    UntypedActionResultHolderBase* const result =
         this->UntypedPerformDefaultAction(untyped_args, ss.str());
 
     // Prints the function result.
@@ -10859,7 +10871,7 @@
     untyped_expectation->DescribeLocationTo(&loc);
   }
 
-  const UntypedActionResultHolderBase* const result =
+  UntypedActionResultHolderBase* const result =
       untyped_action == NULL ?
       this->UntypedPerformDefaultAction(untyped_args, ss.str()) :
       this->UntypedPerformAction(untyped_action, untyped_args);
diff --git a/internal/ceres/gtest/gtest.h b/internal/ceres/gtest/gtest.h
index 4f3804f..56e10fa 100644
--- a/internal/ceres/gtest/gtest.h
+++ b/internal/ceres/gtest/gtest.h
@@ -126,8 +126,11 @@
 // 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.
+// platforms.  All macros ending with _ and symbols defined in an
+// internal namespace are subject to change without notice.  Code
+// outside Google Test MUST NOT USE THEM DIRECTLY.  Macros that don't
+// end with _ are part of Google Test's public API and can be used by
+// code outside Google Test.
 //
 // This file is fundamental to Google Test.  All other Google Test source
 // files are expected to #include this.  Therefore, it cannot #include
@@ -136,9 +139,30 @@
 #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.
+// Environment-describing macros
+// -----------------------------
+//
+// Google Test can be used in many different environments.  Macros in
+// this section tell Google Test what kind of environment it is being
+// used in, such that Google Test can provide environment-specific
+// features and implementations.
+//
+// Google Test tries to automatically detect the properties of its
+// environment, so users usually don't need to worry about these
+// macros.  However, the automatic detection is not perfect.
+// Sometimes it's necessary for a user to define some of the following
+// macros in the build script to override Google Test's decisions.
+//
+// If the user doesn't define a macro in the list, Google Test will
+// provide a default definition.  After this header is #included, all
+// macros in this list will be defined to either 1 or 0.
+//
+// Notes to maintainers:
+//   - Each macro here is a user-tweakable knob; do not grow the list
+//     lightly.
+//   - Use #if to key off these macros.  Don't use #ifdef or "#if
+//     defined(...)", which will not work as these macros are ALWAYS
+//     defined.
 //
 //   GTEST_HAS_CLONE          - Define it to 1/0 to indicate that clone(2)
 //                              is/isn't available.
@@ -182,10 +206,15 @@
 //                            - Define to 1 when compiling Google Test itself
 //                              as a shared library.
 
-// This header defines the following utilities:
+// Platform-indicating macros
+// --------------------------
 //
-// Macros indicating the current platform (defined to 1 if compiled on
-// the given platform; otherwise undefined):
+// Macros indicating the platform on which Google Test is being used
+// (a macro is defined to 1 if compiled on the given platform;
+// otherwise UNDEFINED -- it's never defined to 0.).  Google Test
+// defines these macros automatically.  Code outside Google Test MUST
+// NOT define them.
+//
 //   GTEST_OS_AIX      - IBM AIX
 //   GTEST_OS_CYGWIN   - Cygwin
 //   GTEST_OS_HPUX     - HP-UX
@@ -212,22 +241,50 @@
 // 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.
+// It is possible that none of the GTEST_OS_* macros are defined.
+
+// Feature-indicating macros
+// -------------------------
 //
-// Macros indicating available Google Test features (defined to 1 if
-// the corresponding feature is supported; otherwise undefined):
+// Macros indicating which Google Test features are available (a macro
+// is defined to 1 if the corresponding feature is supported;
+// otherwise UNDEFINED -- it's never defined to 0.).  Google Test
+// defines these macros automatically.  Code outside Google Test MUST
+// NOT define them.
+//
+// These macros are public so that portable tests can be written.
+// Such tests typically surround code using a feature with an #if
+// which controls that code.  For example:
+//
+// #if GTEST_HAS_DEATH_TEST
+//   EXPECT_DEATH(DoSomethingDeadly());
+// #endif
+//
 //   GTEST_HAS_COMBINE      - the Combine() function (for value-parameterized
 //                            tests)
 //   GTEST_HAS_DEATH_TEST   - death tests
 //   GTEST_HAS_PARAM_TEST   - value-parameterized tests
 //   GTEST_HAS_TYPED_TEST   - typed tests
 //   GTEST_HAS_TYPED_TEST_P - type-parameterized tests
+//   GTEST_IS_THREADSAFE    - Google Test is thread-safe.
 //   GTEST_USES_POSIX_RE    - enhanced POSIX regex is used. Do not confuse with
 //                            GTEST_HAS_POSIX_RE (see above) which users can
 //                            define themselves.
 //   GTEST_USES_SIMPLE_RE   - our own simple regex is used;
 //                            the above two are mutually exclusive.
 //   GTEST_CAN_COMPARE_NULL - accepts untyped NULL in EXPECT_EQ().
+
+// Misc public macros
+// ------------------
+//
+//   GTEST_FLAG(flag_name)  - references the variable corresponding to
+//                            the given Google Test flag.
+
+// Internal utilities
+// ------------------
+//
+// The following macros and utilities are for Google Test's INTERNAL
+// use only.  Code outside Google Test MUST NOT USE THEM DIRECTLY.
 //
 // Macros for basic C++ coding:
 //   GTEST_AMBIGUOUS_ELSE_BLOCKER_ - for disabling a gcc warning.
@@ -236,13 +293,18 @@
 //   GTEST_DISALLOW_ASSIGN_   - disables operator=.
 //   GTEST_DISALLOW_COPY_AND_ASSIGN_ - disables copy ctor and operator=.
 //   GTEST_MUST_USE_RESULT_   - declares that a function's result must be used.
+//   GTEST_INTENTIONAL_CONST_COND_PUSH_ - start code section where MSVC C4127 is
+//                                        suppressed (constant conditional).
+//   GTEST_INTENTIONAL_CONST_COND_POP_  - finish code section where MSVC C4127
+//                                        is suppressed.
+//
+// C++11 feature wrappers:
+//
+//   GTEST_MOVE_          - portability wrapper for std::move.
 //
 // 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.
+//                            - synchronization primitives.
 //
 // Template meta programming:
 //   is_pointer     - as in TR1; needed on Symbian and IBM XL C/C++ only.
@@ -278,7 +340,6 @@
 //   BiggestInt     - the biggest signed integer type.
 //
 // Command-line utilities:
-//   GTEST_FLAG()       - references a flag.
 //   GTEST_DECLARE_*()  - declares a flag.
 //   GTEST_DEFINE_*()   - defines a flag.
 //   GetInjectableArgvs() - returns the command line as a vector of strings.
@@ -307,6 +368,7 @@
 #include <iostream>  // NOLINT
 #include <sstream>  // NOLINT
 #include <string>  // NOLINT
+#include <utility>
 
 #define GTEST_DEV_EMAIL_ "googletestframework@@googlegroups.com"
 #define GTEST_FLAG_PREFIX_ "gtest_"
@@ -378,6 +440,38 @@
 # endif
 #endif
 
+// C++11 specifies that <initializer_list> provides std::initializer_list. Use
+// that if gtest is used in C++11 mode and libstdc++ isn't very old (binaries
+// targeting OS X 10.6 can build with clang but need to use gcc4.2's
+// libstdc++).
+#if GTEST_LANG_CXX11 && (!defined(__GLIBCXX__) || __GLIBCXX__ > 20110325)
+# define GTEST_HAS_STD_INITIALIZER_LIST_ 1
+#endif
+
+// C++11 specifies that <tuple> provides std::tuple.
+// Some platforms still might not have it, however.
+#if GTEST_LANG_CXX11
+# define GTEST_HAS_STD_TUPLE_ 1
+# if defined(__clang__)
+// Inspired by http://clang.llvm.org/docs/LanguageExtensions.html#__has_include
+#  if defined(__has_include) && !__has_include(<tuple>)
+#   undef GTEST_HAS_STD_TUPLE_
+#  endif
+# elif defined(_MSC_VER)
+// Inspired by boost/config/stdlib/dinkumware.hpp
+#  if defined(_CPPLIB_VER) && _CPPLIB_VER < 520
+#   undef GTEST_HAS_STD_TUPLE_
+#  endif
+# elif defined(__GLIBCXX__)
+// Inspired by boost/config/stdlib/libstdcpp3.hpp,
+// http://gcc.gnu.org/gcc-4.2/changes.html and
+// http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt01ch01.html#manual.intro.status.standard.200x
+#  if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
+#   undef GTEST_HAS_STD_TUPLE_
+#  endif
+# endif
+#endif
+
 // Brings in definitions for functions used in the testing::internal::posix
 // namespace (read, write, close, chdir, isatty, stat). We do not currently
 // use them on Windows Mobile.
@@ -694,6 +788,14 @@
    private:
 #endif
 
+// Visual Studio 2010, 2012, and 2013 define symbols in std::tr1 that conflict
+// with our own definitions. Therefore using our own tuple does not work on
+// those compilers.
+#if defined(_MSC_VER) && _MSC_VER >= 1600  /* 1600 is Visual Studio 2010 */
+# error "gtest's tuple doesn't compile on Visual Studio 2010 or later. \
+GTEST_USE_OWN_TR1_TUPLE must be set to 0 on those compilers."
+#endif
+
 // GTEST_n_TUPLE_(T) is the type of an n-tuple.
 #define GTEST_0_TUPLE_(T) tuple<>
 #define GTEST_1_TUPLE_(T) tuple<T##0, void, void, void, void, void, void, \
@@ -1845,6 +1947,31 @@
 # define GTEST_MUST_USE_RESULT_
 #endif  // __GNUC__ && (GTEST_GCC_VER_ >= 30400) && !COMPILER_ICC
 
+#if GTEST_LANG_CXX11
+# define GTEST_MOVE_(x) ::std::move(x)  // NOLINT
+#else
+# define GTEST_MOVE_(x) x
+#endif
+
+// MS C++ compiler emits warning when a conditional expression is compile time
+// constant. In some contexts this warning is false positive and needs to be
+// suppressed. Use the following two macros in such cases:
+//
+// GTEST_INTENTIONAL_CONST_COND_PUSH_
+// while (true) {
+// GTEST_INTENTIONAL_CONST_COND_POP_
+// }
+#if defined(_MSC_VER)
+# define GTEST_INTENTIONAL_CONST_COND_PUSH_ \
+    __pragma(warning(push)) \
+    __pragma(warning(disable: 4127))
+# define GTEST_INTENTIONAL_CONST_COND_POP_ \
+    __pragma(warning(pop))
+#else
+# define GTEST_INTENTIONAL_CONST_COND_PUSH_
+# define GTEST_INTENTIONAL_CONST_COND_POP_
+#endif
+
 // Determine whether the compiler supports Microsoft's Structured Exception
 // Handling.  This is supported by several Windows compilers but generally
 // does not exist on any other system.
@@ -1889,6 +2016,31 @@
 # define GTEST_HAS_CXXABI_H_ 0
 #endif
 
+// A function level attribute to disable checking for use of uninitialized
+// memory when built with MemorySanitizer.
+#if defined(__clang__)
+# if __has_feature(memory_sanitizer)
+#  define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_ \
+       __attribute__((no_sanitize_memory))
+# else
+#  define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_
+# endif  // __has_feature(memory_sanitizer)
+#else
+# define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_
+#endif  // __clang__
+
+// A function level attribute to disable AddressSanitizer instrumentation.
+#if defined(__clang__)
+# if __has_feature(address_sanitizer)
+#  define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_ \
+       __attribute__((no_sanitize_address))
+# else
+#  define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
+# endif  // __has_feature(address_sanitizer)
+#else
+# define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
+#endif  // __clang__
+
 namespace testing {
 
 class Message;
@@ -1904,8 +2056,8 @@
 // expression is true. For example, you could use it to verify the
 // size of a static array:
 //
-//   GTEST_COMPILE_ASSERT_(ARRAYSIZE(content_type_names) == CONTENT_NUM_TYPES,
-//                         content_type_names_incorrect_size);
+//   GTEST_COMPILE_ASSERT_(GTEST_ARRAY_SIZE_(names) == NUM_NAMES,
+//                         names_incorrect_size);
 //
 // or to make sure a struct is smaller than a certain size:
 //
@@ -1973,6 +2125,9 @@
 template <typename T>
 struct StaticAssertTypeEqHelper<T, T> {};
 
+// Evaluates to the number of elements in 'array'.
+#define GTEST_ARRAY_SIZE_(array) (sizeof(array) / sizeof(array[0]))
+
 #if GTEST_HAS_GLOBAL_STRING
 typedef ::string string;
 #else
@@ -2231,7 +2386,9 @@
   // for compile-time type checking, and has no overhead in an
   // optimized build at run-time, as it will be optimized away
   // completely.
+  GTEST_INTENTIONAL_CONST_COND_PUSH_
   if (false) {
+  GTEST_INTENTIONAL_CONST_COND_POP_
     const To to = NULL;
     ::testing::internal::ImplicitCast_<From*>(to);
   }
@@ -7744,7 +7901,7 @@
   // MakeFrom() is an expression whose type is From.  We cannot simply
   // use From(), as the type From may not have a public default
   // constructor.
-  static From MakeFrom();
+  static typename AddReference<From>::type MakeFrom();
 
   // These two functions are overloaded.  Given an expression
   // Helper(x), the compiler will pick the first version if x can be
@@ -9294,6 +9451,10 @@
 #include <utility>
 #include <vector>
 
+#if GTEST_HAS_STD_TUPLE_
+# include <tuple>
+#endif
+
 namespace testing {
 
 // Definitions in the 'internal' and 'internal2' name spaces are
@@ -9671,14 +9832,16 @@
 }
 #endif  // GTEST_HAS_STD_WSTRING
 
-#if GTEST_HAS_TR1_TUPLE
-// Overload for ::std::tr1::tuple.  Needed for printing function arguments,
-// which are packed as tuples.
-
+#if GTEST_HAS_TR1_TUPLE || GTEST_HAS_STD_TUPLE_
 // Helper function for printing a tuple.  T must be instantiated with
 // a tuple type.
 template <typename T>
 void PrintTupleTo(const T& t, ::std::ostream* os);
+#endif  // GTEST_HAS_TR1_TUPLE || GTEST_HAS_STD_TUPLE_
+
+#if GTEST_HAS_TR1_TUPLE
+// Overload for ::std::tr1::tuple.  Needed for printing function arguments,
+// which are packed as tuples.
 
 // Overloaded PrintTo() for tuples of various arities.  We support
 // tuples of up-to 10 fields.  The following implementation works
@@ -9752,6 +9915,13 @@
 }
 #endif  // GTEST_HAS_TR1_TUPLE
 
+#if GTEST_HAS_STD_TUPLE_
+template <typename... Types>
+void PrintTo(const ::std::tuple<Types...>& t, ::std::ostream* os) {
+  PrintTupleTo(t, os);
+}
+#endif  // GTEST_HAS_STD_TUPLE_
+
 // Overload for std::pair.
 template <typename T1, typename T2>
 void PrintTo(const ::std::pair<T1, T2>& value, ::std::ostream* os) {
@@ -9947,16 +10117,65 @@
   UniversalPrinter<T1>::Print(value, os);
 }
 
-#if GTEST_HAS_TR1_TUPLE
 typedef ::std::vector<string> Strings;
 
+// TuplePolicy<TupleT> must provide:
+// - tuple_size
+//     size of tuple TupleT.
+// - get<size_t I>(const TupleT& t)
+//     static function extracting element I of tuple TupleT.
+// - tuple_element<size_t I>::type
+//     type of element I of tuple TupleT.
+template <typename TupleT>
+struct TuplePolicy;
+
+#if GTEST_HAS_TR1_TUPLE
+template <typename TupleT>
+struct TuplePolicy {
+  typedef TupleT Tuple;
+  static const size_t tuple_size = ::std::tr1::tuple_size<Tuple>::value;
+
+  template <size_t I>
+  struct tuple_element : ::std::tr1::tuple_element<I, Tuple> {};
+
+  template <size_t I>
+  static typename AddReference<
+      const typename ::std::tr1::tuple_element<I, Tuple>::type>::type get(
+      const Tuple& tuple) {
+    return ::std::tr1::get<I>(tuple);
+  }
+};
+template <typename TupleT>
+const size_t TuplePolicy<TupleT>::tuple_size;
+#endif  // GTEST_HAS_TR1_TUPLE
+
+#if GTEST_HAS_STD_TUPLE_
+template <typename... Types>
+struct TuplePolicy< ::std::tuple<Types...> > {
+  typedef ::std::tuple<Types...> Tuple;
+  static const size_t tuple_size = ::std::tuple_size<Tuple>::value;
+
+  template <size_t I>
+  struct tuple_element : ::std::tuple_element<I, Tuple> {};
+
+  template <size_t I>
+  static const typename ::std::tuple_element<I, Tuple>::type& get(
+      const Tuple& tuple) {
+    return ::std::get<I>(tuple);
+  }
+};
+template <typename... Types>
+const size_t TuplePolicy< ::std::tuple<Types...> >::tuple_size;
+#endif  // GTEST_HAS_STD_TUPLE_
+
+#if GTEST_HAS_TR1_TUPLE || GTEST_HAS_STD_TUPLE_
 // This helper template allows PrintTo() for tuples and
 // UniversalTersePrintTupleFieldsToStrings() to be defined by
 // induction on the number of tuple fields.  The idea is that
 // TuplePrefixPrinter<N>::PrintPrefixTo(t, os) prints the first N
 // fields in tuple t, and can be defined in terms of
 // TuplePrefixPrinter<N - 1>.
-
+//
 // The inductive case.
 template <size_t N>
 struct TuplePrefixPrinter {
@@ -9964,9 +10183,14 @@
   template <typename Tuple>
   static void PrintPrefixTo(const Tuple& t, ::std::ostream* os) {
     TuplePrefixPrinter<N - 1>::PrintPrefixTo(t, os);
-    *os << ", ";
-    UniversalPrinter<typename ::std::tr1::tuple_element<N - 1, Tuple>::type>
-        ::Print(::std::tr1::get<N - 1>(t), os);
+    GTEST_INTENTIONAL_CONST_COND_PUSH_
+    if (N > 1) {
+    GTEST_INTENTIONAL_CONST_COND_POP_
+      *os << ", ";
+    }
+    UniversalPrinter<
+        typename TuplePolicy<Tuple>::template tuple_element<N - 1>::type>
+        ::Print(TuplePolicy<Tuple>::template get<N - 1>(t), os);
   }
 
   // Tersely prints the first N fields of a tuple to a string vector,
@@ -9975,12 +10199,12 @@
   static void TersePrintPrefixToStrings(const Tuple& t, Strings* strings) {
     TuplePrefixPrinter<N - 1>::TersePrintPrefixToStrings(t, strings);
     ::std::stringstream ss;
-    UniversalTersePrint(::std::tr1::get<N - 1>(t), &ss);
+    UniversalTersePrint(TuplePolicy<Tuple>::template get<N - 1>(t), &ss);
     strings->push_back(ss.str());
   }
 };
 
-// Base cases.
+// Base case.
 template <>
 struct TuplePrefixPrinter<0> {
   template <typename Tuple>
@@ -9989,34 +10213,13 @@
   template <typename Tuple>
   static void TersePrintPrefixToStrings(const Tuple&, Strings*) {}
 };
-// We have to specialize the entire TuplePrefixPrinter<> class
-// template here, even though the definition of
-// TersePrintPrefixToStrings() is the same as the generic version, as
-// Embarcadero (formerly CodeGear, formerly Borland) C++ doesn't
-// support specializing a method template of a class template.
-template <>
-struct TuplePrefixPrinter<1> {
-  template <typename Tuple>
-  static void PrintPrefixTo(const Tuple& t, ::std::ostream* os) {
-    UniversalPrinter<typename ::std::tr1::tuple_element<0, Tuple>::type>::
-        Print(::std::tr1::get<0>(t), os);
-  }
 
-  template <typename Tuple>
-  static void TersePrintPrefixToStrings(const Tuple& t, Strings* strings) {
-    ::std::stringstream ss;
-    UniversalTersePrint(::std::tr1::get<0>(t), &ss);
-    strings->push_back(ss.str());
-  }
-};
-
-// Helper function for printing a tuple.  T must be instantiated with
-// a tuple type.
-template <typename T>
-void PrintTupleTo(const T& t, ::std::ostream* os) {
+// Helper function for printing a tuple.
+// Tuple must be either std::tr1::tuple or std::tuple type.
+template <typename Tuple>
+void PrintTupleTo(const Tuple& t, ::std::ostream* os) {
   *os << "(";
-  TuplePrefixPrinter< ::std::tr1::tuple_size<T>::value>::
-      PrintPrefixTo(t, os);
+  TuplePrefixPrinter<TuplePolicy<Tuple>::tuple_size>::PrintPrefixTo(t, os);
   *os << ")";
 }
 
@@ -10026,11 +10229,11 @@
 template <typename Tuple>
 Strings UniversalTersePrintTupleFieldsToStrings(const Tuple& value) {
   Strings result;
-  TuplePrefixPrinter< ::std::tr1::tuple_size<Tuple>::value>::
+  TuplePrefixPrinter<TuplePolicy<Tuple>::tuple_size>::
       TersePrintPrefixToStrings(value, &result);
   return result;
 }
-#endif  // GTEST_HAS_TR1_TUPLE
+#endif  // GTEST_HAS_TR1_TUPLE || GTEST_HAS_STD_TUPLE_
 
 }  // namespace internal