Remove all uses of GTEST_DISALLOW_{MOVE_,}ASSIGN_.

None of these are strictly needed for correctness.
A large number of them (maybe all of them?) trigger `-Wdeprecated`
warnings on Clang trunk as soon as you try to use the implicitly
defaulted (but deprecated) copy constructor of a class that has
deleted its copy assignment operator.

By declaring a deleted copy assignment operator, the old code
also caused the move constructor and move assignment operator
to be non-declared. This means that the old code never got move
semantics -- "move-construction" would simply call the defaulted
(but deprecated) copy constructor instead. With the new code,
"move-construction" calls the defaulted move constructor, which
I believe is what we want to happen. So this is a runtime
performance optimization.

Unfortunately we can't yet physically remove the definitions
of these macros from gtest-port.h, because they are being used
by other code internally at Google (according to zhangxy988).
But no new uses should be added going forward.

11 files changed, 2 insertions, 162 deletions

diff --git a/googlemock/include/gmock/gmock-actions.h b/googlemock/include/gmock/gmock-actions.h
index 615651b3..58089e3c 100644
--- a/googlemock/include/gmock/gmock-actions.h
+++ b/googlemock/include/gmock/gmock-actions.h
@@ -570,13 +570,9 @@ class PolymorphicAction {
 
    private:
     Impl impl_;
-
-    GTEST_DISALLOW_ASSIGN_(MonomorphicImpl);
   };
 
   Impl impl_;
-
-  GTEST_DISALLOW_ASSIGN_(PolymorphicAction);
 };
 
 // Creates an Action from its implementation and returns it.  The
@@ -717,13 +713,9 @@ class ReturnAction {
    private:
     bool performed_;
     const std::shared_ptr<R> wrapper_;
-
-    GTEST_DISALLOW_ASSIGN_(Impl);
   };
 
   const std::shared_ptr<R> value_;
-
-  GTEST_DISALLOW_ASSIGN_(ReturnAction);
 };
 
 // Implements the ReturnNull() action.
@@ -784,13 +776,9 @@ class ReturnRefAction {
 
    private:
     T& ref_;
-
-    GTEST_DISALLOW_ASSIGN_(Impl);
   };
 
   T& ref_;
-
-  GTEST_DISALLOW_ASSIGN_(ReturnRefAction);
 };
 
 // Implements the polymorphic ReturnRefOfCopy(x) action, which can be
@@ -831,13 +819,9 @@ class ReturnRefOfCopyAction {
 
    private:
     T value_;
-
-    GTEST_DISALLOW_ASSIGN_(Impl);
   };
 
   const T value_;
-
-  GTEST_DISALLOW_ASSIGN_(ReturnRefOfCopyAction);
 };
 
 // Implements the polymorphic ReturnRoundRobin(v) action, which can be
@@ -894,8 +878,6 @@ class AssignAction {
  private:
   T1* const ptr_;
   const T2 value_;
-
-  GTEST_DISALLOW_ASSIGN_(AssignAction);
 };
 
 #if !GTEST_OS_WINDOWS_MOBILE
@@ -917,8 +899,6 @@ class SetErrnoAndReturnAction {
  private:
   const int errno_;
   const T result_;
-
-  GTEST_DISALLOW_ASSIGN_(SetErrnoAndReturnAction);
 };
 
 #endif  // !GTEST_OS_WINDOWS_MOBILE
@@ -1024,13 +1004,9 @@ class IgnoreResultAction {
         OriginalFunction;
 
     const Action<OriginalFunction> action_;
-
-    GTEST_DISALLOW_ASSIGN_(Impl);
   };
 
   const A action_;
-
-  GTEST_DISALLOW_ASSIGN_(IgnoreResultAction);
 };
 
 template <typename InnerAction, size_t... I>
@@ -1467,13 +1443,7 @@ auto InvokeArgumentAdl(AdlTag, F f, Args... args) -> decltype(f(args...)) {
       template <GMOCK_ACTION_TEMPLATE_ARGS_NAMES_>                            \
       return_type gmock_PerformImpl(GMOCK_ACTION_ARG_TYPES_AND_NAMES_) const; \
       GMOCK_ACTION_FIELD_PARAMS_(params)                                      \
-                                                                              \
-     private:                                                                 \
-      GTEST_DISALLOW_ASSIGN_(gmock_Impl);                                     \
     };                                                                        \
-                                                                              \
-   private:                                                                   \
-    GTEST_DISALLOW_ASSIGN_(full_name);                                        \
   };                                                                          \
   template <GMOCK_ACTION_TYPENAME_PARAMS_(params)>                            \
   inline full_name<GMOCK_ACTION_TYPE_PARAMS_(params)> name(                   \
@@ -1512,13 +1482,7 @@ auto InvokeArgumentAdl(AdlTag, F f, Args... args) -> decltype(f(args...)) {
       }                                                                       \
       template <GMOCK_ACTION_TEMPLATE_ARGS_NAMES_>                            \
       return_type gmock_PerformImpl(GMOCK_ACTION_ARG_TYPES_AND_NAMES_) const; \
-                                                                              \
-     private:                                                                 \
-      GTEST_DISALLOW_ASSIGN_(gmock_Impl);                                     \
     };                                                                        \
-                                                                              \
-   private:                                                                   \
-    GTEST_DISALLOW_ASSIGN_(name##Action);                                     \
   };                                                                          \
   inline name##Action name() { return name##Action(); }                       \
   template <typename F>                                                       \
diff --git a/googlemock/include/gmock/gmock-generated-actions.h b/googlemock/include/gmock/gmock-generated-actions.h
index c78debef..0fe6acbc 100644
--- a/googlemock/include/gmock/gmock-generated-actions.h
+++ b/googlemock/include/gmock/gmock-generated-actions.h
@@ -435,16 +435,12 @@
       template <GMOCK_ACTION_TEMPLATE_ARGS_NAMES_>\
       return_type gmock_PerformImpl(GMOCK_ACTION_ARG_TYPES_AND_NAMES_) const;\
       GMOCK_INTERNAL_DEFN_##value_params\
-     private:\
-      GTEST_DISALLOW_ASSIGN_(gmock_Impl);\
     };\
     template <typename F> operator ::testing::Action<F>() const {\
       return ::testing::Action<F>(\
           new gmock_Impl<F>(GMOCK_INTERNAL_LIST_##value_params));\
     }\
     GMOCK_INTERNAL_DEFN_##value_params\
-   private:\
-    GTEST_DISALLOW_ASSIGN_(GMOCK_ACTION_CLASS_(name, value_params));\
   };\
   template <GMOCK_INTERNAL_DECL_##template_params\
             GMOCK_INTERNAL_DECL_TYPE_##value_params>\
diff --git a/googlemock/include/gmock/gmock-generated-actions.h.pump b/googlemock/include/gmock/gmock-generated-actions.h.pump
index be9d99fe..02fd9ff7 100644
--- a/googlemock/include/gmock/gmock-generated-actions.h.pump
+++ b/googlemock/include/gmock/gmock-generated-actions.h.pump
@@ -253,16 +253,12 @@ $range k 0..n-1
       template <GMOCK_ACTION_TEMPLATE_ARGS_NAMES_>\
       return_type gmock_PerformImpl(GMOCK_ACTION_ARG_TYPES_AND_NAMES_) const;\
       GMOCK_INTERNAL_DEFN_##value_params\
-     private:\
-      GTEST_DISALLOW_ASSIGN_(gmock_Impl);\
     };\
     template <typename F> operator ::testing::Action<F>() const {\
       return ::testing::Action<F>(\
           new gmock_Impl<F>(GMOCK_INTERNAL_LIST_##value_params));\
     }\
     GMOCK_INTERNAL_DEFN_##value_params\
-   private:\
-    GTEST_DISALLOW_ASSIGN_(GMOCK_ACTION_CLASS_(name, value_params));\
   };\
   template <GMOCK_INTERNAL_DECL_##template_params\
             GMOCK_INTERNAL_DECL_TYPE_##value_params>\
diff --git a/googlemock/include/gmock/gmock-matchers.h b/googlemock/include/gmock/gmock-matchers.h
index b5b662d4..c474e0b9 100644
--- a/googlemock/include/gmock/gmock-matchers.h
+++ b/googlemock/include/gmock/gmock-matchers.h
@@ -444,8 +444,6 @@ class MatcherCastImpl<T, Matcher<U> > {
 
    private:
     const Matcher<U> source_matcher_;
-
-    GTEST_DISALLOW_ASSIGN_(Impl);
   };
 };
 
@@ -861,13 +859,9 @@ class RefMatcher<T&> {
 
    private:
     const Super& object_;
-
-    GTEST_DISALLOW_ASSIGN_(Impl);
   };
 
   T& object_;
-
-  GTEST_DISALLOW_ASSIGN_(RefMatcher);
 };
 
 // Polymorphic helper functions for narrow and wide string matchers.
@@ -970,8 +964,6 @@ class StrEqualityMatcher {
   const StringType string_;
   const bool expect_eq_;
   const bool case_sensitive_;
-
-  GTEST_DISALLOW_ASSIGN_(StrEqualityMatcher);
 };
 
 // Implements the polymorphic HasSubstr(substring) matcher, which
@@ -1026,8 +1018,6 @@ class HasSubstrMatcher {
 
  private:
   const StringType substring_;
-
-  GTEST_DISALLOW_ASSIGN_(HasSubstrMatcher);
 };
 
 // Implements the polymorphic StartsWith(substring) matcher, which
@@ -1083,8 +1073,6 @@ class StartsWithMatcher {
 
  private:
   const StringType prefix_;
-
-  GTEST_DISALLOW_ASSIGN_(StartsWithMatcher);
 };
 
 // Implements the polymorphic EndsWith(substring) matcher, which
@@ -1139,8 +1127,6 @@ class EndsWithMatcher {
 
  private:
   const StringType suffix_;
-
-  GTEST_DISALLOW_ASSIGN_(EndsWithMatcher);
 };
 
 // Implements a matcher that compares the two fields of a 2-tuple
@@ -1234,8 +1220,6 @@ class NotMatcherImpl : public MatcherInterface<const T&> {
 
  private:
   const Matcher<T> matcher_;
-
-  GTEST_DISALLOW_ASSIGN_(NotMatcherImpl);
 };
 
 // Implements the Not(m) matcher, which matches a value that doesn't
@@ -1254,8 +1238,6 @@ class NotMatcher {
 
  private:
   InnerMatcher matcher_;
-
-  GTEST_DISALLOW_ASSIGN_(NotMatcher);
 };
 
 // Implements the AllOf(m1, m2) matcher for a particular argument type
@@ -1317,8 +1299,6 @@ class AllOfMatcherImpl : public MatcherInterface<const T&> {
 
  private:
   const std::vector<Matcher<T> > matchers_;
-
-  GTEST_DISALLOW_ASSIGN_(AllOfMatcherImpl);
 };
 
 // VariadicMatcher is used for the variadic implementation of
@@ -1424,8 +1404,6 @@ class AnyOfMatcherImpl : public MatcherInterface<const T&> {
 
  private:
   const std::vector<Matcher<T> > matchers_;
-
-  GTEST_DISALLOW_ASSIGN_(AnyOfMatcherImpl);
 };
 
 // AnyOfMatcher is used for the variadic implementation of AnyOf(m_1, m_2, ...).
@@ -1453,8 +1431,6 @@ class SomeOfArrayMatcher {
 
  private:
   const ::std::vector<T> matchers_;
-
-  GTEST_DISALLOW_ASSIGN_(SomeOfArrayMatcher);
 };
 
 template <typename T>
@@ -1498,8 +1474,6 @@ class TrulyMatcher {
 
  private:
   Predicate predicate_;
-
-  GTEST_DISALLOW_ASSIGN_(TrulyMatcher);
 };
 
 // Used for implementing Matches(matcher), which turns a matcher into
@@ -1536,8 +1510,6 @@ class MatcherAsPredicate {
 
  private:
   M matcher_;
-
-  GTEST_DISALLOW_ASSIGN_(MatcherAsPredicate);
 };
 
 // For implementing ASSERT_THAT() and EXPECT_THAT().  The template
@@ -1588,8 +1560,6 @@ class PredicateFormatterFromMatcher {
 
  private:
   const M matcher_;
-
-  GTEST_DISALLOW_ASSIGN_(PredicateFormatterFromMatcher);
 };
 
 // A helper function for converting a matcher to a predicate-formatter
@@ -1741,8 +1711,6 @@ class FloatingEqMatcher {
     const bool nan_eq_nan_;
     // max_abs_error will be used for value comparison when >= 0.
     const FloatType max_abs_error_;
-
-    GTEST_DISALLOW_ASSIGN_(Impl);
   };
 
   // The following 3 type conversion operators allow FloatEq(expected) and
@@ -1771,8 +1739,6 @@ class FloatingEqMatcher {
   const bool nan_eq_nan_;
   // max_abs_error will be used for value comparison when >= 0.
   const FloatType max_abs_error_;
-
-  GTEST_DISALLOW_ASSIGN_(FloatingEqMatcher);
 };
 
 // A 2-tuple ("binary") wrapper around FloatingEqMatcher:
@@ -1902,13 +1868,9 @@ class PointeeMatcher {
 
    private:
     const Matcher<const Pointee&> matcher_;
-
-    GTEST_DISALLOW_ASSIGN_(Impl);
   };
 
   const InnerMatcher matcher_;
-
-  GTEST_DISALLOW_ASSIGN_(PointeeMatcher);
 };
 
 #if GTEST_HAS_RTTI
@@ -1945,8 +1907,6 @@ class WhenDynamicCastToMatcherBase {
   static void GetCastTypeDescription(::std::ostream* os) {
     *os << "when dynamic_cast to " << GetToName() << ", ";
   }
-
-  GTEST_DISALLOW_ASSIGN_(WhenDynamicCastToMatcherBase);
 };
 
 // Primary template.
@@ -2044,8 +2004,6 @@ class FieldMatcher {
   // Contains either "whose given field " if the name of the field is unknown
   // or "whose field `name_of_field` " if the name is known.
   const std::string whose_field_;
-
-  GTEST_DISALLOW_ASSIGN_(FieldMatcher);
 };
 
 // Implements the Property() matcher for matching a property
@@ -2114,8 +2072,6 @@ class PropertyMatcher {
   // Contains either "whose given property " if the name of the property is
   // unknown or "whose property `name_of_property` " if the name is known.
   const std::string whose_property_;
-
-  GTEST_DISALLOW_ASSIGN_(PropertyMatcher);
 };
 
 // Type traits specifying various features of different functors for ResultOf.
@@ -2205,14 +2161,10 @@ class ResultOfMatcher {
     // how many times the callable will be invoked.
     mutable CallableStorageType callable_;
     const Matcher<ResultType> matcher_;
-
-    GTEST_DISALLOW_ASSIGN_(Impl);
   };  // class Impl
 
   const CallableStorageType callable_;
   const InnerMatcher matcher_;
-
-  GTEST_DISALLOW_ASSIGN_(ResultOfMatcher);
 };
 
 // Implements a matcher that checks the size of an STL-style container.
@@ -2257,12 +2209,10 @@ class SizeIsMatcher {
 
    private:
     const Matcher<SizeType> size_matcher_;
-    GTEST_DISALLOW_ASSIGN_(Impl);
   };
 
  private:
   const SizeMatcher size_matcher_;
-  GTEST_DISALLOW_ASSIGN_(SizeIsMatcher);
 };
 
 // Implements a matcher that checks the begin()..end() distance of an STL-style
@@ -2314,12 +2264,10 @@ class BeginEndDistanceIsMatcher {
 
    private:
     const Matcher<DistanceType> distance_matcher_;
-    GTEST_DISALLOW_ASSIGN_(Impl);
   };
 
  private:
   const DistanceMatcher distance_matcher_;
-  GTEST_DISALLOW_ASSIGN_(BeginEndDistanceIsMatcher);
 };
 
 // Implements an equality matcher for any STL-style container whose elements
@@ -2412,8 +2360,6 @@ class ContainerEqMatcher {
 
  private:
   const StlContainer expected_;
-
-  GTEST_DISALLOW_ASSIGN_(ContainerEqMatcher);
 };
 
 // A comparator functor that uses the < operator to compare two values.
@@ -2495,8 +2441,6 @@ class WhenSortedByMatcher {
  private:
   const Comparator comparator_;
   const ContainerMatcher matcher_;
-
-  GTEST_DISALLOW_ASSIGN_(WhenSortedByMatcher);
 };
 
 // Implements Pointwise(tuple_matcher, rhs_container).  tuple_matcher
@@ -2612,15 +2556,11 @@ class PointwiseMatcher {
    private:
     const Matcher<InnerMatcherArg> mono_tuple_matcher_;
     const RhsStlContainer rhs_;
-
-    GTEST_DISALLOW_ASSIGN_(Impl);
   };
 
  private:
   const TupleMatcher tuple_matcher_;
   const RhsStlContainer rhs_;
-
-  GTEST_DISALLOW_ASSIGN_(PointwiseMatcher);
 };
 
 // Holds the logic common to ContainsMatcherImpl and EachMatcherImpl.
@@ -2663,8 +2603,6 @@ class QuantifierMatcherImpl : public MatcherInterface<Container> {
 
  protected:
   const Matcher<const Element&> inner_matcher_;
-
-  GTEST_DISALLOW_ASSIGN_(QuantifierMatcherImpl);
 };
 
 // Implements Contains(element_matcher) for the given argument type Container.
@@ -2691,9 +2629,6 @@ class ContainsMatcherImpl : public QuantifierMatcherImpl<Container> {
                        MatchResultListener* listener) const override {
     return this->MatchAndExplainImpl(false, container, listener);
   }
-
- private:
-  GTEST_DISALLOW_ASSIGN_(ContainsMatcherImpl);
 };
 
 // Implements Each(element_matcher) for the given argument type Container.
@@ -2720,9 +2655,6 @@ class EachMatcherImpl : public QuantifierMatcherImpl<Container> {
                        MatchResultListener* listener) const override {
     return this->MatchAndExplainImpl(true, container, listener);
   }
-
- private:
-  GTEST_DISALLOW_ASSIGN_(EachMatcherImpl);
 };
 
 // Implements polymorphic Contains(element_matcher).
@@ -2739,8 +2671,6 @@ class ContainsMatcher {
 
  private:
   const M inner_matcher_;
-
-  GTEST_DISALLOW_ASSIGN_(ContainsMatcher);
 };
 
 // Implements polymorphic Each(element_matcher).
@@ -2757,8 +2687,6 @@ class EachMatcher {
 
  private:
   const M inner_matcher_;
-
-  GTEST_DISALLOW_ASSIGN_(EachMatcher);
 };
 
 struct Rank1 {};
@@ -2829,8 +2757,6 @@ class KeyMatcherImpl : public MatcherInterface<PairType> {
 
  private:
   const Matcher<const KeyType&> inner_matcher_;
-
-  GTEST_DISALLOW_ASSIGN_(KeyMatcherImpl);
 };
 
 // Implements polymorphic Key(matcher_for_key).
@@ -2847,8 +2773,6 @@ class KeyMatcher {
 
  private:
   const M matcher_for_key_;
-
-  GTEST_DISALLOW_ASSIGN_(KeyMatcher);
 };
 
 // Implements Pair(first_matcher, second_matcher) for the given argument pair
@@ -2934,8 +2858,6 @@ class PairMatcherImpl : public MatcherInterface<PairType> {
 
   const Matcher<const FirstType&> first_matcher_;
   const Matcher<const SecondType&> second_matcher_;
-
-  GTEST_DISALLOW_ASSIGN_(PairMatcherImpl);
 };
 
 // Implements polymorphic Pair(first_matcher, second_matcher).
@@ -2954,8 +2876,6 @@ class PairMatcher {
  private:
   const FirstMatcher first_matcher_;
   const SecondMatcher second_matcher_;
-
-  GTEST_DISALLOW_ASSIGN_(PairMatcher);
 };
 
 // Implements ElementsAre() and ElementsAreArray().
@@ -3101,8 +3021,6 @@ class ElementsAreMatcherImpl : public MatcherInterface<Container> {
   size_t count() const { return matchers_.size(); }
 
   ::std::vector<Matcher<const Element&> > matchers_;
-
-  GTEST_DISALLOW_ASSIGN_(ElementsAreMatcherImpl);
 };
 
 // Connectivity matrix of (elements X matchers), in element-major order.
@@ -3205,8 +3123,6 @@ class GTEST_API_ UnorderedElementsAreMatcherImplBase {
  private:
   UnorderedMatcherRequire::Flags match_flags_;
   MatcherDescriberVec matcher_describers_;
-
-  GTEST_DISALLOW_ASSIGN_(UnorderedElementsAreMatcherImplBase);
 };
 
 // Implements UnorderedElementsAre, UnorderedElementsAreArray, IsSubsetOf, and
@@ -3302,8 +3218,6 @@ class UnorderedElementsAreMatcherImpl
   }
 
   ::std::vector<Matcher<const Element&> > matchers_;
-
-  GTEST_DISALLOW_ASSIGN_(UnorderedElementsAreMatcherImpl);
 };
 
 // Functor for use in TransformTuple.
@@ -3341,7 +3255,6 @@ class UnorderedElementsAreMatcher {
 
  private:
   const MatcherTuple matchers_;
-  GTEST_DISALLOW_ASSIGN_(UnorderedElementsAreMatcher);
 };
 
 // Implements ElementsAre.
@@ -3371,7 +3284,6 @@ class ElementsAreMatcher {
 
  private:
   const MatcherTuple matchers_;
-  GTEST_DISALLOW_ASSIGN_(ElementsAreMatcher);
 };
 
 // Implements UnorderedElementsAreArray(), IsSubsetOf(), and IsSupersetOf().
@@ -3393,8 +3305,6 @@ class UnorderedElementsAreArrayMatcher {
  private:
   UnorderedMatcherRequire::Flags match_flags_;
   ::std::vector<T> matchers_;
-
-  GTEST_DISALLOW_ASSIGN_(UnorderedElementsAreArrayMatcher);
 };
 
 // Implements ElementsAreArray().
@@ -3416,8 +3326,6 @@ class ElementsAreArrayMatcher {
 
  private:
   const ::std::vector<T> matchers_;
-
-  GTEST_DISALLOW_ASSIGN_(ElementsAreArrayMatcher);
 };
 
 // Given a 2-tuple matcher tm of type Tuple2Matcher and a value second
@@ -3479,8 +3387,6 @@ class BoundSecondMatcher {
    private:
     const Matcher<const ArgTuple&> mono_tuple2_matcher_;
     const Second second_value_;
-
-    GTEST_DISALLOW_ASSIGN_(Impl);
   };
 
   const Tuple2Matcher tuple2_matcher_;
@@ -3553,12 +3459,10 @@ class OptionalMatcher {
 
    private:
     const Matcher<ValueType> value_matcher_;
-    GTEST_DISALLOW_ASSIGN_(Impl);
   };
 
  private:
   const ValueMatcher value_matcher_;
-  GTEST_DISALLOW_ASSIGN_(OptionalMatcher);
 };
 
 namespace variant_matcher {
diff --git a/googlemock/include/gmock/gmock-spec-builders.h b/googlemock/include/gmock/gmock-spec-builders.h
index 4b5fc661..2baec446 100644
--- a/googlemock/include/gmock/gmock-spec-builders.h
+++ b/googlemock/include/gmock/gmock-spec-builders.h
@@ -879,8 +879,6 @@ class GTEST_API_ ExpectationBase {
   Clause last_clause_;
   mutable bool action_count_checked_;  // Under mutex_.
   mutable Mutex mutex_;  // Protects action_count_checked_.
-
-  GTEST_DISALLOW_ASSIGN_(ExpectationBase);
 };  // class ExpectationBase
 
 // Impements an expectation for the given function type.
@@ -1295,8 +1293,6 @@ class MockSpec {
   internal::FunctionMocker<F>* const function_mocker_;
   // The argument matchers specified in the spec.
   ArgumentMatcherTuple matchers_;
-
-  GTEST_DISALLOW_ASSIGN_(MockSpec);
 };  // class MockSpec
 
 // Wrapper type for generically holding an ordinary value or lvalue reference.
diff --git a/googlemock/src/gmock-matchers.cc b/googlemock/src/gmock-matchers.cc
index 4f73e0a6..dded437a 100644
--- a/googlemock/src/gmock-matchers.cc
+++ b/googlemock/src/gmock-matchers.cc
@@ -218,8 +218,6 @@ class MaxBipartiteMatchState {
   // right_[left_[i]] = i.
   ::std::vector<size_t> left_;
   ::std::vector<size_t> right_;
-
-  GTEST_DISALLOW_ASSIGN_(MaxBipartiteMatchState);
 };
 
 const size_t MaxBipartiteMatchState::kUnused;
diff --git a/googlemock/test/gmock-actions_test.cc b/googlemock/test/gmock-actions_test.cc
index d1229ac9..a252825a 100644
--- a/googlemock/test/gmock-actions_test.cc
+++ b/googlemock/test/gmock-actions_test.cc
@@ -575,8 +575,6 @@ class FromType {
 
  private:
   bool* const converted_;
-
-  GTEST_DISALLOW_ASSIGN_(FromType);
 };
 
 class ToType {
diff --git a/googlemock/test/gmock-matchers_test.cc b/googlemock/test/gmock-matchers_test.cc
index 186d8aae..5db0a7ae 100644
--- a/googlemock/test/gmock-matchers_test.cc
+++ b/googlemock/test/gmock-matchers_test.cc
@@ -3746,17 +3746,11 @@ struct AStruct {
   const double y;  // A const field.
   Uncopyable z;    // An uncopyable field.
   const char* p;   // A pointer field.
-
- private:
-  GTEST_DISALLOW_ASSIGN_(AStruct);
 };
 
 // A derived struct for testing Field().
 struct DerivedStruct : public AStruct {
   char ch;
-
- private:
-  GTEST_DISALLOW_ASSIGN_(DerivedStruct);
 };
 
 // Tests that Field(&Foo::field, ...) works when field is non-const.
diff --git a/googletest/include/gtest/internal/gtest-internal.h b/googletest/include/gtest/internal/gtest-internal.h
index 7f1a5b00..fabc8042 100644
--- a/googletest/include/gtest/internal/gtest-internal.h
+++ b/googletest/include/gtest/internal/gtest-internal.h
@@ -1120,8 +1120,6 @@ class NativeArray {
   const Element* array_;
   size_t size_;
   void (NativeArray::*clone_)(const Element*, size_t);
-
-  GTEST_DISALLOW_ASSIGN_(NativeArray);
 };
 
 // Backport of std::index_sequence.
diff --git a/googletest/include/gtest/internal/gtest-port.h b/googletest/include/gtest/internal/gtest-port.h
index 21fcf822..44307a13 100644
--- a/googletest/include/gtest/internal/gtest-port.h
+++ b/googletest/include/gtest/internal/gtest-port.h
@@ -682,7 +682,7 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // This should be used in the private: declarations for a class.
 #define GTEST_DISALLOW_COPY_AND_ASSIGN_(type) \
   type(type const &) = delete; \
-  GTEST_DISALLOW_ASSIGN_(type)
+  type& operator=(type const &) = delete
 
 // A macro to disallow move operator=
 // This should be used in the private: declarations for a class.
@@ -693,7 +693,7 @@ typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
 // This should be used in the private: declarations for a class.
 #define GTEST_DISALLOW_MOVE_AND_ASSIGN_(type) \
   type(type &&) noexcept = delete; \
-  GTEST_DISALLOW_MOVE_ASSIGN_(type)
+  type& operator=(type &&) noexcept = delete
 
 // Tell the compiler to warn about unused return values for functions declared
 // with this macro.  The macro should be used on function declarations
@@ -920,8 +920,6 @@ class GTEST_API_ RE {
   const char* full_pattern_;  // For FullMatch();
 
 # endif
-
-  GTEST_DISALLOW_ASSIGN_(RE);
 };
 
 #endif  // GTEST_USES_PCRE
diff --git a/googletest/test/googletest-port-test.cc b/googletest/test/googletest-port-test.cc
index 60d637c3..2af75c20 100644
--- a/googletest/test/googletest-port-test.cc
+++ b/googletest/test/googletest-port-test.cc
@@ -1180,8 +1180,6 @@ class DestructorTracker {
     return DestructorCall::List().size() - 1;
   }
   const size_t index_;
-
-  GTEST_DISALLOW_ASSIGN_(DestructorTracker);
 };
 
 typedef ThreadLocal<DestructorTracker>* ThreadParam;