Merge pull request #2353 from anttsov:patch-1

PiperOrigin-RevId: 261198930
diff --git a/.travis.yml b/.travis.yml
index db199c8..6b4c5c7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,9 +12,9 @@
   include:
     - os: linux
       sudo: required
-      before_install: chmod -R +x ./ci/*platformio.sh 
+      before_install: chmod -R +x ./ci/*platformio.sh
       install: ./ci/install-platformio.sh
-      script: ./ci/build-platformio.sh      
+      script: ./ci/build-platformio.sh
     - os: linux
       dist: xenial
       compiler: gcc
@@ -29,7 +29,7 @@
       script: ./ci/build-linux-bazel.sh
     - os: linux
       compiler: gcc
-      env: BUILD_TYPE=Debug VERBOSE=1 CXX_FLAGS=-std=c++11 
+      env: BUILD_TYPE=Debug VERBOSE=1 CXX_FLAGS=-std=c++11
     - os: linux
       compiler: clang
       env: BUILD_TYPE=Release VERBOSE=1 CXX_FLAGS=-std=c++11 -Wgnu-zero-variadic-macro-arguments
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 3c8ad31..e8f77c9 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -21,7 +21,7 @@
 
 ## Are you a Googler?
 
-If you are a Googler, plese make an attempt to submit an internal change rather
+If you are a Googler, please make an attempt to submit an internal change rather
 than a GitHub Pull Request. If you are not able to submit an internal change a
 PR is acceptable as an alternative.
 
@@ -29,19 +29,19 @@
 
 1.  Submit an issue describing your proposed change to the
     [issue tracker](https://github.com/google/googletest).
-1.  Please don't mix more than one logical change per submittal, because it
+2.  Please don't mix more than one logical change per submittal, because it
     makes the history hard to follow. If you want to make a change that doesn't
     have a corresponding issue in the issue tracker, please create one.
-1.  Also, coordinate with team members that are listed on the issue in question.
+3.  Also, coordinate with team members that are listed on the issue in question.
     This ensures that work isn't being duplicated and communicating your plan
     early also generally leads to better patches.
-1.  If your proposed change is accepted, and you haven't already done so, sign a
+4.  If your proposed change is accepted, and you haven't already done so, sign a
     Contributor License Agreement (see details above).
-1.  Fork the desired repo, develop and test your code changes.
-1.  Ensure that your code adheres to the existing style in the sample to which
+5.  Fork the desired repo, develop and test your code changes.
+6.  Ensure that your code adheres to the existing style in the sample to which
     you are contributing.
-1.  Ensure that your code has an appropriate set of unit tests which all pass.
-1.  Submit a pull request.
+7.  Ensure that your code has an appropriate set of unit tests which all pass.
+8.  Submit a pull request.
 
 ## The Google Test and Google Mock Communities
 
diff --git a/googlemock/README.md b/googlemock/README.md
index ef6b7fc..183fdb8 100644
--- a/googlemock/README.md
+++ b/googlemock/README.md
@@ -28,10 +28,8 @@
 -   does not use exceptions, and
 -   is easy to learn and use.
 
-
 Details and examples can be found here:
 
-
 *   [gMock for Dummies](docs/for_dummies.md)
 *   [Legacy gMock FAQ](docs/gmock_faq.md)
 *   [gMock Cookbook](docs/cook_book.md)
diff --git a/googlemock/docs/cheat_sheet.md b/googlemock/docs/cheat_sheet.md
index 6441a7a..3bfc6dd 100644
--- a/googlemock/docs/cheat_sheet.md
+++ b/googlemock/docs/cheat_sheet.md
@@ -177,7 +177,8 @@
 To customize the default action for a particular method of a specific mock
 object, use `ON_CALL()`. `ON_CALL()` has a similar syntax to `EXPECT_CALL()`,
 but it is used for setting default behaviors (when you do not require that the
-mock method is called). See go/prefer-on-call for a more detailed discussion.
+mock method is called). See [here](cook_book.md#UseOnCall) for a more detailed
+discussion.
 
 ```cpp
 ON_CALL(mock-object, method(matchers))
@@ -332,8 +333,8 @@
 
 `ContainsRegex()` and `MatchesRegex()` take ownership of the `RE` object. They
 use the regular expression syntax defined
-[here](http://go/gunit-advanced-regex). `StrCaseEq()`, `StrCaseNe()`, `StrEq()`,
-and `StrNe()` work for wide strings as well.
+[here](advanced.md#regular-expression-syntax). `StrCaseEq()`, `StrCaseNe()`,
+`StrEq()`, and `StrNe()` work for wide strings as well.
 
 #### Container Matchers
 
@@ -599,10 +600,10 @@
 **Notes:**
 
 1.  The `MATCHER*` macros cannot be used inside a function or class.
-1.  The matcher body must be *purely functional* (i.e. it cannot have any side
+2.  The matcher body must be *purely functional* (i.e. it cannot have any side
     effect, and the result must not depend on anything other than the value
     being matched and the matcher parameters).
-1.  You can use `PrintToString(x)` to convert a value `x` of any type to a
+3.  You can use `PrintToString(x)` to convert a value `x` of any type to a
     string.
 
 ### Actions {#ActionList}
@@ -658,20 +659,20 @@
 :                                    : be any copyable value. Available since  :
 :                                    : v1.1.0.                                 :
 
-#### Using a Function, Functor, Lambda, or Callback as an Action
+#### Using a Function, Functor, or Lambda as an Action
 
 In the following, by "callable" we mean a free function, `std::function`,
-functor, lambda, or `google3`-style permanent callback.
+functor, or lambda.
 
 |                                     |                                        |
 | :---------------------------------- | :------------------------------------- |
 | `f`                                 | Invoke f with the arguments passed to  |
 :                                     : the mock function, where f is a        :
-:                                     : callable (except of google3 callback). :
+:                                     : callable.                              :
 | `Invoke(f)`                         | Invoke `f` with the arguments passed   |
 :                                     : to the mock function, where `f` can be :
 :                                     : a global/static function or a functor. :
-| `Invoke(object_pointer,             | Invoke the {method on the object with  |
+| `Invoke(object_pointer,             | Invoke the method on the object with   |
 : &class\:\:method)`                  : the arguments passed to the mock       :
 :                                     : function.                              :
 | `InvokeWithoutArgs(f)`              | Invoke `f`, which can be a             |
@@ -886,12 +887,12 @@
 using ::testing::Mock;
 ...
 // Verifies and removes the expectations on mock_obj;
-// returns true iff successful.
+// returns true if successful.
 Mock::VerifyAndClearExpectations(&mock_obj);
 ...
 // Verifies and removes the expectations on mock_obj;
 // also removes the default actions set by ON_CALL();
-// returns true iff successful.
+// returns true if successful.
 Mock::VerifyAndClear(&mock_obj);
 ```
 
diff --git a/googlemock/docs/cook_book.md b/googlemock/docs/cook_book.md
index 17c2645..676560b 100644
--- a/googlemock/docs/cook_book.md
+++ b/googlemock/docs/cook_book.md
@@ -1038,7 +1038,7 @@
 Have you noticed that a matcher is just a fancy predicate that also knows how to
 describe itself? Many existing algorithms take predicates as arguments (e.g.
 those defined in STL's `<algorithm>` header), and it would be a shame if gMock
-matchers are not allowed to participate.
+matchers were not allowed to participate.
 
 Luckily, you can use a matcher where a unary predicate functor is expected by
 wrapping it inside the `Matches()` function. For example,
@@ -1245,7 +1245,7 @@
 the pointer itself, has a certain property? Well, you can use the `Pointee(m)`
 matcher.
 
-`Pointee(m)` matches a pointer iff `m` matches the value the pointer points to.
+`Pointee(m)` matches a pointer if `m` matches the value the pointer points to.
 For example:
 
 ```cpp
@@ -2603,7 +2603,7 @@
 action object. Suppose you have an action factory `IncrementCounter(init)` which
 creates an action that increments and returns a counter whose initial value is
 `init`, using two actions created from the same expression and using a shared
-action will exihibit different behaviors. Example:
+action will exhibit different behaviors. Example:
 
 ```cpp
   EXPECT_CALL(foo, DoThis())
@@ -3548,7 +3548,7 @@
  public:
   virtual ~MatcherInterface();
 
-  // Returns true iff the matcher matches x; also explains the match
+  // Returns true if the matcher matches x; also explains the match
   // result to 'listener'.
   virtual bool MatchAndExplain(T x, MatchResultListener* listener) const = 0;
 
@@ -3702,10 +3702,10 @@
  public:
   virtual ~CardinalityInterface();
 
-  // Returns true iff call_count calls will satisfy this cardinality.
+  // Returns true if call_count calls will satisfy this cardinality.
   virtual bool IsSatisfiedByCallCount(int call_count) const = 0;
 
-  // Returns true iff call_count calls will saturate this cardinality.
+  // Returns true if call_count calls will saturate this cardinality.
   virtual bool IsSaturatedByCallCount(int call_count) const = 0;
 
   // Describes self to an ostream.
diff --git a/googlemock/docs/for_dummies.md b/googlemock/docs/for_dummies.md
index 5551cd8..3bccd2b 100644
--- a/googlemock/docs/for_dummies.md
+++ b/googlemock/docs/for_dummies.md
@@ -695,4 +695,4 @@
 In gMock, if you are not interested in a method, just don't say anything about
 it. If a call to this method occurs, you'll see a warning in the test output,
 but it won't be a failure. This is called "naggy" behavior; to change, see
-[The Nice, the Strict, and the Naggy](#NiceStrictNaggy).
+[The Nice, the Strict, and the Naggy](cook_book.md#NiceStrictNaggy).
diff --git a/googlemock/docs/gmock_faq.md b/googlemock/docs/gmock_faq.md
index 8bc45b1..214aabf 100644
--- a/googlemock/docs/gmock_faq.md
+++ b/googlemock/docs/gmock_faq.md
@@ -81,7 +81,7 @@
 void Bar(const int* p);  // p is not const, but *p is.
 ```
 
-<<!-- GOOGLETEST_CM0030 DO NOT DELETE -->
+<!-- GOOGLETEST_CM0030 DO NOT DELETE -->
 
 ### I can't figure out why gMock thinks my expectations are not satisfied. What should I do?
 
@@ -91,9 +91,9 @@
 
 If you see the message "The mock function has no default action set, and its
 return type has no default value set.", then try
-[adding a default action](http://go/gmockguide#DefaultValue). Due to a known
-issue, unexpected calls on mocks without default actions don't print out a
-detailed comparison between the actual arguments and the expected arguments.
+[adding a default action](for_dummies.md#DefaultValue). Due to a known issue,
+unexpected calls on mocks without default actions don't print out a detailed
+comparison between the actual arguments and the expected arguments.
 
 ### My program crashed and `ScopedMockLog` spit out tons of messages. Is it a gMock bug?
 
diff --git a/googlemock/include/gmock/gmock-actions.h b/googlemock/include/gmock/gmock-actions.h
index 6895dfd..e921cf4 100644
--- a/googlemock/include/gmock/gmock-actions.h
+++ b/googlemock/include/gmock/gmock-actions.h
@@ -99,7 +99,7 @@
 template <typename T>
 class BuiltInDefaultValue {
  public:
-  // This function returns true iff type T has a built-in default value.
+  // This function returns true if type T has a built-in default value.
   static bool Exists() {
     return ::std::is_default_constructible<T>::value;
   }
@@ -208,7 +208,7 @@
     producer_ = nullptr;
   }
 
-  // Returns true iff the user has set the default value for type T.
+  // Returns true if the user has set the default value for type T.
   static bool IsSet() { return producer_ != nullptr; }
 
   // Returns true if T has a default return value set by the user or there
@@ -269,7 +269,7 @@
   // Unsets the default value for type T&.
   static void Clear() { address_ = nullptr; }
 
-  // Returns true iff the user has set the default value for type T&.
+  // Returns true if the user has set the default value for type T&.
   static bool IsSet() { return address_ != nullptr; }
 
   // Returns true if T has a default return value set by the user or there
@@ -375,7 +375,7 @@
   template <typename Func>
   explicit Action(const Action<Func>& action) : fun_(action.fun_) {}
 
-  // Returns true iff this is the DoDefault() action.
+  // Returns true if this is the DoDefault() action.
   bool IsDoDefault() const { return fun_ == nullptr; }
 
   // Performs the action.  Note that this method is const even though
@@ -395,7 +395,7 @@
   template <typename G>
   friend class Action;
 
-  // fun_ is an empty function iff this is the DoDefault() action.
+  // fun_ is an empty function if this is the DoDefault() action.
   ::std::function<F> fun_;
 };
 
diff --git a/googlemock/include/gmock/gmock-cardinalities.h b/googlemock/include/gmock/gmock-cardinalities.h
index 8fa25eb..4b269a3 100644
--- a/googlemock/include/gmock/gmock-cardinalities.h
+++ b/googlemock/include/gmock/gmock-cardinalities.h
@@ -70,10 +70,10 @@
   virtual int ConservativeLowerBound() const { return 0; }
   virtual int ConservativeUpperBound() const { return INT_MAX; }
 
-  // Returns true iff call_count calls will satisfy this cardinality.
+  // Returns true if call_count calls will satisfy this cardinality.
   virtual bool IsSatisfiedByCallCount(int call_count) const = 0;
 
-  // Returns true iff call_count calls will saturate this cardinality.
+  // Returns true if call_count calls will saturate this cardinality.
   virtual bool IsSaturatedByCallCount(int call_count) const = 0;
 
   // Describes self to an ostream.
@@ -98,17 +98,17 @@
   int ConservativeLowerBound() const { return impl_->ConservativeLowerBound(); }
   int ConservativeUpperBound() const { return impl_->ConservativeUpperBound(); }
 
-  // Returns true iff call_count calls will satisfy this cardinality.
+  // Returns true if call_count calls will satisfy this cardinality.
   bool IsSatisfiedByCallCount(int call_count) const {
     return impl_->IsSatisfiedByCallCount(call_count);
   }
 
-  // Returns true iff call_count calls will saturate this cardinality.
+  // Returns true if call_count calls will saturate this cardinality.
   bool IsSaturatedByCallCount(int call_count) const {
     return impl_->IsSaturatedByCallCount(call_count);
   }
 
-  // Returns true iff call_count calls will over-saturate this
+  // Returns true if call_count calls will over-saturate this
   // cardinality, i.e. exceed the maximum number of allowed calls.
   bool IsOverSaturatedByCallCount(int call_count) const {
     return impl_->IsSaturatedByCallCount(call_count) &&
diff --git a/googlemock/include/gmock/gmock-matchers.h b/googlemock/include/gmock/gmock-matchers.h
index fcf8cf2..7075082 100644
--- a/googlemock/include/gmock/gmock-matchers.h
+++ b/googlemock/include/gmock/gmock-matchers.h
@@ -361,7 +361,7 @@
 class TuplePrefix {
  public:
   // TuplePrefix<N>::Matches(matcher_tuple, value_tuple) returns true
-  // iff the first N fields of matcher_tuple matches the first N
+  // if the first N fields of matcher_tuple matches the first N
   // fields of value_tuple, respectively.
   template <typename MatcherTuple, typename ValueTuple>
   static bool Matches(const MatcherTuple& matcher_tuple,
@@ -420,7 +420,7 @@
                                      ::std::ostream* /* os */) {}
 };
 
-// TupleMatches(matcher_tuple, value_tuple) returns true iff all
+// TupleMatches(matcher_tuple, value_tuple) returns true if all
 // matchers in matcher_tuple match the corresponding fields in
 // value_tuple.  It is a compiler error if matcher_tuple and
 // value_tuple have different number of fields or incompatible field
@@ -2534,7 +2534,7 @@
           testing::SafeMatcherCast<const KeyType&>(inner_matcher)) {
   }
 
-  // Returns true iff 'key_value.first' (the key) matches the inner matcher.
+  // Returns true if 'key_value.first' (the key) matches the inner matcher.
   bool MatchAndExplain(PairType key_value,
                        MatchResultListener* listener) const override {
     StringMatchResultListener inner_listener;
@@ -2616,7 +2616,7 @@
     second_matcher_.DescribeNegationTo(os);
   }
 
-  // Returns true iff 'a_pair.first' matches first_matcher and 'a_pair.second'
+  // Returns true if 'a_pair.first' matches first_matcher and 'a_pair.second'
   // matches second_matcher.
   bool MatchAndExplain(PairType a_pair,
                        MatchResultListener* listener) const override {
@@ -3152,7 +3152,7 @@
 
 // Given a 2-tuple matcher tm of type Tuple2Matcher and a value second
 // of type Second, BoundSecondMatcher<Tuple2Matcher, Second>(tm,
-// second) is a polymorphic matcher that matches a value x iff tm
+// second) is a polymorphic matcher that matches a value x if tm
 // matches tuple (x, second).  Useful for implementing
 // UnorderedPointwise() in terms of UnorderedElementsAreArray().
 //
@@ -3217,7 +3217,7 @@
 
 // Given a 2-tuple matcher tm and a value second,
 // MatcherBindSecond(tm, second) returns a matcher that matches a
-// value x iff tm matches tuple (x, second).  Useful for implementing
+// value x if tm matches tuple (x, second).  Useful for implementing
 // UnorderedPointwise() in terms of UnorderedElementsAreArray().
 template <typename Tuple2Matcher, typename Second>
 BoundSecondMatcher<Tuple2Matcher, Second> MatcherBindSecond(
@@ -3710,7 +3710,7 @@
 // Creates a matcher that matches an object whose given field matches
 // 'matcher'.  For example,
 //   Field(&Foo::number, Ge(5))
-// matches a Foo object x iff x.number >= 5.
+// matches a Foo object x if x.number >= 5.
 template <typename Class, typename FieldType, typename FieldMatcher>
 inline PolymorphicMatcher<
   internal::FieldMatcher<Class, FieldType> > Field(
@@ -3737,7 +3737,7 @@
 // Creates a matcher that matches an object whose given property
 // matches 'matcher'.  For example,
 //   Property(&Foo::str, StartsWith("hi"))
-// matches a Foo object x iff x.str() starts with "hi".
+// matches a Foo object x if x.str() starts with "hi".
 template <typename Class, typename PropertyType, typename PropertyMatcher>
 inline PolymorphicMatcher<internal::PropertyMatcher<
     Class, PropertyType, PropertyType (Class::*)() const> >
@@ -3792,11 +3792,11 @@
           property_name, property, MatcherCast<const PropertyType&>(matcher)));
 }
 
-// Creates a matcher that matches an object iff the result of applying
+// Creates a matcher that matches an object if the result of applying
 // a callable to x matches 'matcher'.
 // For example,
 //   ResultOf(f, StartsWith("hi"))
-// matches a Foo object x iff f(x) starts with "hi".
+// matches a Foo object x if f(x) starts with "hi".
 // `callable` parameter can be a function, function pointer, or a functor. It is
 // required to keep no state affecting the results of the calls on it and make
 // no assumptions about how many calls will be made. Any state it keeps must be
@@ -4345,7 +4345,7 @@
   return internal::MatcherAsPredicate<M>(matcher);
 }
 
-// Returns true iff the value matches the matcher.
+// Returns true if the value matches the matcher.
 template <typename T, typename M>
 inline bool Value(const T& value, M matcher) {
   return testing::Matches(matcher)(value);
@@ -4551,7 +4551,7 @@
 
 // These macros allow using matchers to check values in Google Test
 // tests.  ASSERT_THAT(value, matcher) and EXPECT_THAT(value, matcher)
-// succeed iff the value matches the matcher.  If the assertion fails,
+// succeed if the value matches the matcher.  If the assertion fails,
 // the value and the description of the matcher will be printed.
 #define ASSERT_THAT(value, matcher) ASSERT_PRED_FORMAT1(\
     ::testing::internal::MakePredicateFormatterFromMatcher(matcher), value)
diff --git a/googlemock/include/gmock/gmock-spec-builders.h b/googlemock/include/gmock/gmock-spec-builders.h
index 255d6ad..81ee345 100644
--- a/googlemock/include/gmock/gmock-spec-builders.h
+++ b/googlemock/include/gmock/gmock-spec-builders.h
@@ -331,7 +331,7 @@
     return *this;
   }
 
-  // Returns true iff the given arguments match the matchers.
+  // Returns true if the given arguments match the matchers.
   bool Matches(const ArgumentTuple& args) const {
     return TupleMatches(matchers_, args) && extra_matcher_.Matches(args);
   }
@@ -389,7 +389,7 @@
       GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex);
 
   // Verifies all expectations on the given mock object and clears its
-  // default actions and expectations.  Returns true iff the
+  // default actions and expectations.  Returns true if the
   // verification was successful.
   static bool VerifyAndClear(void* mock_obj)
       GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex);
@@ -515,7 +515,7 @@
   // The compiler-generated copy ctor and operator= work exactly as
   // intended, so we don't need to define our own.
 
-  // Returns true iff rhs references the same expectation as this object does.
+  // Returns true if rhs references the same expectation as this object does.
   bool operator==(const Expectation& rhs) const {
     return expectation_base_ == rhs.expectation_base_;
   }
@@ -597,7 +597,7 @@
   // The compiler-generator ctor and operator= works exactly as
   // intended, so we don't need to define our own.
 
-  // Returns true iff rhs contains the same set of Expectation objects
+  // Returns true if rhs contains the same set of Expectation objects
   // as this does.
   bool operator==(const ExpectationSet& rhs) const {
     return expectations_ == rhs.expectations_;
@@ -759,7 +759,7 @@
   // by the subclasses to implement the .Times() clause.
   void SpecifyCardinality(const Cardinality& cardinality);
 
-  // Returns true iff the user specified the cardinality explicitly
+  // Returns true if the user specified the cardinality explicitly
   // using a .Times().
   bool cardinality_specified() const { return cardinality_specified_; }
 
@@ -776,7 +776,7 @@
   void RetireAllPreRequisites()
       GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex);
 
-  // Returns true iff this expectation is retired.
+  // Returns true if this expectation is retired.
   bool is_retired() const
       GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
     g_gmock_mutex.AssertHeld();
@@ -790,28 +790,28 @@
     retired_ = true;
   }
 
-  // Returns true iff this expectation is satisfied.
+  // Returns true if this expectation is satisfied.
   bool IsSatisfied() const
       GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
     g_gmock_mutex.AssertHeld();
     return cardinality().IsSatisfiedByCallCount(call_count_);
   }
 
-  // Returns true iff this expectation is saturated.
+  // Returns true if this expectation is saturated.
   bool IsSaturated() const
       GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
     g_gmock_mutex.AssertHeld();
     return cardinality().IsSaturatedByCallCount(call_count_);
   }
 
-  // Returns true iff this expectation is over-saturated.
+  // Returns true if this expectation is over-saturated.
   bool IsOverSaturated() const
       GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
     g_gmock_mutex.AssertHeld();
     return cardinality().IsOverSaturatedByCallCount(call_count_);
   }
 
-  // Returns true iff all pre-requisites of this expectation are satisfied.
+  // Returns true if all pre-requisites of this expectation are satisfied.
   bool AllPrerequisitesAreSatisfied() const
       GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex);
 
@@ -854,7 +854,7 @@
   const char* file_;          // The file that contains the expectation.
   int line_;                  // The line number of the expectation.
   const std::string source_text_;  // The EXPECT_CALL(...) source text.
-  // True iff the cardinality is specified explicitly.
+  // True if the cardinality is specified explicitly.
   bool cardinality_specified_;
   Cardinality cardinality_;            // The cardinality of the expectation.
   // The immediate pre-requisites (i.e. expectations that must be
@@ -868,7 +868,7 @@
   // This group of fields are the current state of the expectation,
   // and can change as the mock function is called.
   int call_count_;  // How many times this expectation has been invoked.
-  bool retired_;    // True iff this expectation has retired.
+  bool retired_;    // True if this expectation has retired.
   UntypedActions untyped_actions_;
   bool extra_matcher_specified_;
   bool repeated_action_specified_;  // True if a WillRepeatedly() was specified.
@@ -1086,14 +1086,14 @@
   // statement finishes and when the current thread holds
   // g_gmock_mutex.
 
-  // Returns true iff this expectation matches the given arguments.
+  // Returns true if this expectation matches the given arguments.
   bool Matches(const ArgumentTuple& args) const
       GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
     g_gmock_mutex.AssertHeld();
     return TupleMatches(matchers_, args) && extra_matcher_.Matches(args);
   }
 
-  // Returns true iff this expectation should handle the given arguments.
+  // Returns true if this expectation should handle the given arguments.
   bool ShouldHandleArguments(const ArgumentTuple& args) const
       GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
     g_gmock_mutex.AssertHeld();
diff --git a/googlemock/include/gmock/gmock.h b/googlemock/include/gmock/gmock.h
index 7096984..99c3d78 100644
--- a/googlemock/include/gmock/gmock.h
+++ b/googlemock/include/gmock/gmock.h
@@ -39,14 +39,14 @@
 
 // This file implements the following syntax:
 //
-//   ON_CALL(mock_object.Method(...))
+//   ON_CALL(mock_object, Method(...))
 //     .With(...) ?
 //     .WillByDefault(...);
 //
 // where With() is optional and WillByDefault() must appear exactly
 // once.
 //
-//   EXPECT_CALL(mock_object.Method(...))
+//   EXPECT_CALL(mock_object, Method(...))
 //     .With(...) ?
 //     .Times(...) ?
 //     .InSequence(...) *
diff --git a/googlemock/include/gmock/internal/gmock-internal-utils.h b/googlemock/include/gmock/internal/gmock-internal-utils.h
index 01e96cf..ee00479 100644
--- a/googlemock/include/gmock/internal/gmock-internal-utils.h
+++ b/googlemock/include/gmock/internal/gmock-internal-utils.h
@@ -176,11 +176,11 @@
   static_cast< ::testing::internal::TypeKind>( \
       ::testing::internal::KindOf<type>::value)
 
-// Evaluates to true iff integer type T is signed.
+// Evaluates to true if integer type T is signed.
 #define GMOCK_IS_SIGNED_(T) (static_cast<T>(-1) < 0)
 
 // LosslessArithmeticConvertibleImpl<kFromKind, From, kToKind, To>::value
-// is true iff arithmetic type From can be losslessly converted to
+// is true if arithmetic type From can be losslessly converted to
 // arithmetic type To.
 //
 // It's the user's responsibility to ensure that both From and To are
@@ -211,7 +211,7 @@
 struct LosslessArithmeticConvertibleImpl<kInteger, From, kBool, bool>
     : public false_type {};  // NOLINT
 
-// Converting an integer to another non-bool integer is lossless iff
+// Converting an integer to another non-bool integer is lossless if
 // the target type's range encloses the source type's range.
 template <typename From, typename To>
 struct LosslessArithmeticConvertibleImpl<kInteger, From, kInteger, To>
@@ -243,13 +243,13 @@
     : public false_type {};  // NOLINT
 
 // Converting a floating-point to another floating-point is lossless
-// iff the target type is at least as big as the source type.
+// if the target type is at least as big as the source type.
 template <typename From, typename To>
 struct LosslessArithmeticConvertibleImpl<
   kFloatingPoint, From, kFloatingPoint, To>
     : public bool_constant<sizeof(From) <= sizeof(To)> {};  // NOLINT
 
-// LosslessArithmeticConvertible<From, To>::value is true iff arithmetic
+// LosslessArithmeticConvertible<From, To>::value is true if arithmetic
 // type From can be losslessly converted to arithmetic type To.
 //
 // It's the user's responsibility to ensure that both From and To are
@@ -324,11 +324,11 @@
 // No logs are printed.
 const char kErrorVerbosity[] = "error";
 
-// Returns true iff a log with the given severity is visible according
+// Returns true if a log with the given severity is visible according
 // to the --gmock_verbose flag.
 GTEST_API_ bool LogIsVisible(LogSeverity severity);
 
-// Prints the given message to stdout iff 'severity' >= the level
+// Prints the given message to stdout if 'severity' >= the level
 // specified by the --gmock_verbose flag.  If stack_frames_to_skip >=
 // 0, also prints the stack trace excluding the top
 // stack_frames_to_skip frames.  In opt mode, any positive
@@ -355,11 +355,11 @@
 
 // Type traits.
 
-// is_reference<T>::value is non-zero iff T is a reference type.
+// is_reference<T>::value is non-zero if T is a reference type.
 template <typename T> struct is_reference : public false_type {};
 template <typename T> struct is_reference<T&> : public true_type {};
 
-// type_equals<T1, T2>::value is non-zero iff T1 and T2 are the same type.
+// type_equals<T1, T2>::value is non-zero if T1 and T2 are the same type.
 template <typename T1, typename T2> struct type_equals : public false_type {};
 template <typename T> struct type_equals<T, T> : public true_type {};
 
diff --git a/googlemock/src/gmock-internal-utils.cc b/googlemock/src/gmock-internal-utils.cc
index 1594662..1292e1d 100644
--- a/googlemock/src/gmock-internal-utils.cc
+++ b/googlemock/src/gmock-internal-utils.cc
@@ -123,7 +123,7 @@
 // Protects global resources (stdout in particular) used by Log().
 static GTEST_DEFINE_STATIC_MUTEX_(g_log_mutex);
 
-// Returns true iff a log with the given severity is visible according
+// Returns true if a log with the given severity is visible according
 // to the --gmock_verbose flag.
 GTEST_API_ bool LogIsVisible(LogSeverity severity) {
   if (GMOCK_FLAG(verbose) == kInfoVerbosity) {
@@ -139,7 +139,7 @@
   }
 }
 
-// Prints the given message to stdout iff 'severity' >= the level
+// Prints the given message to stdout if 'severity' >= the level
 // specified by the --gmock_verbose flag.  If stack_frames_to_skip >=
 // 0, also prints the stack trace excluding the top
 // stack_frames_to_skip frames.  In opt mode, any positive
diff --git a/googlemock/src/gmock-spec-builders.cc b/googlemock/src/gmock-spec-builders.cc
index ea8e173..f6705a3 100644
--- a/googlemock/src/gmock-spec-builders.cc
+++ b/googlemock/src/gmock-spec-builders.cc
@@ -126,7 +126,7 @@
   }
 }
 
-// Returns true iff all pre-requisites of this expectation have been
+// Returns true if all pre-requisites of this expectation have been
 // satisfied.
 bool ExpectationBase::AllPrerequisitesAreSatisfied() const
     GTEST_EXCLUSIVE_LOCK_REQUIRED_(g_gmock_mutex) {
@@ -384,7 +384,7 @@
     const CallReaction reaction =
         Mock::GetReactionOnUninterestingCalls(MockObject());
 
-    // True iff we need to print this call's arguments and return
+    // True if we need to print this call's arguments and return
     // value.  This definition must be kept in sync with
     // the behavior of ReportUninterestingCall().
     const bool need_to_report_uninteresting_call =
@@ -435,7 +435,7 @@
           &ss, &why);
   const bool found = untyped_expectation != nullptr;
 
-  // True iff we need to print the call's arguments and return value.
+  // True if we need to print the call's arguments and return value.
   // This definition must be kept in sync with the uses of Expect()
   // and Log() in this function.
   const bool need_to_report_call =
@@ -574,7 +574,7 @@
   int first_used_line;
   ::std::string first_used_test_suite;
   ::std::string first_used_test;
-  bool leakable;  // true iff it's OK to leak the object.
+  bool leakable;  // true if it's OK to leak the object.
   FunctionMockers function_mockers;  // All registered methods of the object.
 };
 
@@ -718,7 +718,7 @@
 }
 
 // Verifies all expectations on the given mock object and clears its
-// default actions and expectations.  Returns true iff the
+// default actions and expectations.  Returns true if the
 // verification was successful.
 bool Mock::VerifyAndClear(void* mock_obj)
     GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
diff --git a/googlemock/src/gmock.cc b/googlemock/src/gmock.cc
index 05566e2..ce926f2 100644
--- a/googlemock/src/gmock.cc
+++ b/googlemock/src/gmock.cc
@@ -34,7 +34,7 @@
 namespace testing {
 
 GMOCK_DEFINE_bool_(catch_leaked_mocks, true,
-                   "true iff Google Mock should report leaked mock objects "
+                   "true if Google Mock should report leaked mock objects "
                    "as failures.");
 
 GMOCK_DEFINE_string_(verbose, internal::kWarningVerbosity,
diff --git a/googlemock/test/gmock-cardinalities_test.cc b/googlemock/test/gmock-cardinalities_test.cc
index 60fd06a..66042d4 100644
--- a/googlemock/test/gmock-cardinalities_test.cc
+++ b/googlemock/test/gmock-cardinalities_test.cc
@@ -395,12 +395,12 @@
 
 class EvenCardinality : public CardinalityInterface {
  public:
-  // Returns true iff call_count calls will satisfy this cardinality.
+  // Returns true if call_count calls will satisfy this cardinality.
   bool IsSatisfiedByCallCount(int call_count) const override {
     return (call_count % 2 == 0);
   }
 
-  // Returns true iff call_count calls will saturate this cardinality.
+  // Returns true if call_count calls will saturate this cardinality.
   bool IsSaturatedByCallCount(int /* call_count */) const override {
     return false;
   }
diff --git a/googlemock/test/gmock-matchers_test.cc b/googlemock/test/gmock-matchers_test.cc
index 89ad335..74e9294 100644
--- a/googlemock/test/gmock-matchers_test.cc
+++ b/googlemock/test/gmock-matchers_test.cc
@@ -956,7 +956,7 @@
 
 // Tests that TypedEq<T>(v) has type Matcher<T>.
 
-// Type<T>::IsTypeOf(v) compiles iff the type of value v is T, where T
+// Type<T>::IsTypeOf(v) compiles if the type of value v is T, where T
 // is a "bare" type (i.e. not in the form of const U or U&).  If v's
 // type is not T, the compiler will generate a message about
 // "undefined reference".
@@ -2640,7 +2640,7 @@
 // For testing Truly().
 const int foo = 0;
 
-// This predicate returns true iff the argument references foo and has
+// This predicate returns true if the argument references foo and has
 // a zero value.
 bool ReferencesFooAndIsZero(const int& n) {
   return (&n == &foo) && (n == 0);
@@ -3594,7 +3594,7 @@
   GTEST_DISALLOW_COPY_AND_ASSIGN_(Uncopyable);
 };
 
-// Returns true iff x.value() is positive.
+// Returns true if x.value() is positive.
 bool ValueIsPositive(const Uncopyable& x) { return x.value() > 0; }
 
 MATCHER_P(UncopyableIs, inner_matcher, "") {
diff --git a/googlemock/test/gmock-spec-builders_test.cc b/googlemock/test/gmock-spec-builders_test.cc
index d362a90..95b4b8b 100644
--- a/googlemock/test/gmock-spec-builders_test.cc
+++ b/googlemock/test/gmock-spec-builders_test.cc
@@ -1952,12 +1952,12 @@
 
 class EvenNumberCardinality : public CardinalityInterface {
  public:
-  // Returns true iff call_count calls will satisfy this cardinality.
+  // Returns true if call_count calls will satisfy this cardinality.
   bool IsSatisfiedByCallCount(int call_count) const override {
     return call_count % 2 == 0;
   }
 
-  // Returns true iff call_count calls will saturate this cardinality.
+  // Returns true if call_count calls will saturate this cardinality.
   bool IsSaturatedByCallCount(int /* call_count */) const override {
     return false;
   }
diff --git a/googletest/docs/advanced.md b/googletest/docs/advanced.md
index edf3c08..f48e4b4 100644
--- a/googletest/docs/advanced.md
+++ b/googletest/docs/advanced.md
@@ -399,7 +399,8 @@
 
 ### More String Assertions
 
-(Please read the [previous](#AssertThat) section first if you haven't.)
+(Please read the [previous](#asserting-using-gmock-matchers) section first if
+you haven't.)
 
 You can use the gMock
 [string matchers](../../googlemock/docs/cheat_sheet.md#string-matchers) with
@@ -1150,9 +1151,9 @@
 
 1.  In your test fixture class (say `FooTest` ), declare as `static` some member
     variables to hold the shared resources.
-1.  Outside your test fixture class (typically just below it), define those
+2.  Outside your test fixture class (typically just below it), define those
     member variables, optionally giving them initial values.
-1.  In the same test fixture class, define a `static void SetUpTestSuite()`
+3.  In the same test fixture class, define a `static void SetUpTestSuite()`
     function (remember not to spell it as **`SetupTestSuite`** with a small
     `u`!) to set up the shared resources and a `static void TearDownTestSuite()`
     function to tear them down.
@@ -1407,7 +1408,10 @@
 given test suite, whether their definitions come before or *after* the
 `INSTANTIATE_TEST_SUITE_P` statement.
 
-You can see sample7_unittest.cc and sample8_unittest.cc for more examples.
+You can see [sample7_unittest.cc] and [sample8_unittest.cc] for more examples.
+
+[sample7_unittest.cc]: ../samples/sample7_unittest.cc "Parameterized Test example"
+[sample8_unittest.cc]: ../samples/sample8_unittest.cc "Parameterized Test example with multiple parameters"
 
 ### Creating Value-Parameterized Abstract Tests
 
@@ -1425,7 +1429,7 @@
 1.  Put the definition of the parameterized test fixture class (e.g. `FooTest`)
     in a header file, say `foo_param_test.h`. Think of this as *declaring* your
     abstract tests.
-1.  Put the `TEST_P` definitions in `foo_param_test.cc`, which includes
+2.  Put the `TEST_P` definitions in `foo_param_test.cc`, which includes
     `foo_param_test.h`. Think of this as *implementing* your abstract tests.
 
 Once they are defined, you can instantiate them by including `foo_param_test.h`,
@@ -1446,7 +1450,7 @@
 
 NOTE: test names must be non-empty, unique, and may only contain ASCII
 alphanumeric characters. In particular, they
-[should not contain underscores](https://github.com/google/googletest/blob/master/googletest/docs/faq.md#why-should-test-suite-names-and-test-names-not-contain-underscore)
+[should not contain underscores](faq.md#why-should-test-suite-names-and-test-names-not-contain-underscore)
 
 ```c++
 class MyTestSuite : public testing::TestWithParam<int> {};
@@ -1555,7 +1559,9 @@
 TYPED_TEST(FooTest, HasPropertyA) { ... }
 ```
 
-You can see sample6_unittest.cc
+You can see [sample6_unittest.cc] for a complete example.
+
+[sample6_unittest.cc]: ../samples/sample6_unittest.cc "Typed Test example"
 
 ## Type-Parameterized Tests
 
@@ -1630,7 +1636,7 @@
 INSTANTIATE_TYPED_TEST_SUITE_P(My, FooTest, int);
 ```
 
-You can see `sample6_unittest.cc` for a complete example.
+You can see [sample6_unittest.cc] for a complete example.
 
 ## Testing Private Code
 
@@ -1786,10 +1792,10 @@
 
 1.  You cannot stream a failure message to either macro.
 
-1.  `statement` in `EXPECT_FATAL_FAILURE{_ON_ALL_THREADS}()` cannot reference
+2.  `statement` in `EXPECT_FATAL_FAILURE{_ON_ALL_THREADS}()` cannot reference
     local non-static variables or non-static members of `this` object.
 
-1.  `statement` in `EXPECT_FATAL_FAILURE{_ON_ALL_THREADS}()` cannot return a
+3.  `statement` in `EXPECT_FATAL_FAILURE{_ON_ALL_THREADS}()` cannot return a
     value.
 
 ## Registering tests programmatically
@@ -1998,7 +2004,9 @@
 ```
 
 Now, sit back and enjoy a completely different output from your tests. For more
-details, you can read this sample9_unittest.cc
+details, see [sample9_unittest.cc].
+
+[sample9_unittest.cc]: ../samples/sample9_unittest.cc "Event listener example"
 
 You may append more than one listener to the list. When an `On*Start()` or
 `OnTestPartResult()` event is fired, the listeners will receive it in the order
@@ -2015,7 +2023,7 @@
 
 1.  You cannot generate any failure in `OnTestPartResult()` (otherwise it will
     cause `OnTestPartResult()` to be called recursively).
-1.  A listener that handles `OnTestPartResult()` is not allowed to generate any
+2.  A listener that handles `OnTestPartResult()` is not allowed to generate any
     failure.
 
 When you add listeners to the listener list, you should put listeners that
@@ -2023,7 +2031,9 @@
 ensures that failures generated by the latter are attributed to the right test
 by the former.
 
-We have a sample of failure-raising listener sample10_unittest.cc
+See [sample10_unittest.cc] for an example of a failure-raising listener.
+
+[sample10_unittest.cc]: ../samples/sample10_unittest.cc "Failure-raising listener example"
 
 ## Running Test Programs: Advanced Options
 
diff --git a/googletest/docs/faq.md b/googletest/docs/faq.md
index 0e9cfee..9949fec 100644
--- a/googletest/docs/faq.md
+++ b/googletest/docs/faq.md
@@ -8,7 +8,7 @@
 compiler and the standard library:
 
 1.  any identifier that starts with an `_` followed by an upper-case letter, and
-1.  any identifier that contains two consecutive underscores (i.e. `__`)
+2.  any identifier that contains two consecutive underscores (i.e. `__`)
     *anywhere* in its name.
 
 User code is *prohibited* from using such identifiers.
@@ -22,11 +22,11 @@
 1.  If `TestSuiteName` starts with an `_` followed by an upper-case letter (say,
     `_Foo`), we end up with `_Foo_TestName_Test`, which is reserved and thus
     invalid.
-1.  If `TestSuiteName` ends with an `_` (say, `Foo_`), we get
+2.  If `TestSuiteName` ends with an `_` (say, `Foo_`), we get
     `Foo__TestName_Test`, which is invalid.
-1.  If `TestName` starts with an `_` (say, `_Bar`), we get
+3.  If `TestName` starts with an `_` (say, `_Bar`), we get
     `TestSuiteName__Bar_Test`, which is invalid.
-1.  If `TestName` ends with an `_` (say, `Bar_`), we get
+4.  If `TestName` ends with an `_` (say, `Bar_`), we get
     `TestSuiteName_Bar__Test`, which is invalid.
 
 So clearly `TestSuiteName` and `TestName` cannot start or end with `_`
@@ -263,7 +263,7 @@
 googletest has no limit on how deep the hierarchy can be.
 
 For a complete example using derived test fixtures, see
-[googletest sample](https://github.com/google/googletest/blob/master/googletest/samples/sample5_unittest.cc)
+[sample5_unittest.cc](../samples/sample5_unittest.cc).
 
 ## My compiler complains "void value not ignored as it ought to be." What does this mean?
 
@@ -524,8 +524,8 @@
     contaminating others, making debugging difficult. By using fixtures, each
     test has a fresh set of variables that's different (but with the same
     names). Thus, tests are kept independent of each other.
-1.  Global variables pollute the global namespace.
-1.  Test fixtures can be reused via subclassing, which cannot be done easily
+2.  Global variables pollute the global namespace.
+3.  Test fixtures can be reused via subclassing, which cannot be done easily
     with global variables. This is useful if many test suites have something in
     common.
 
diff --git a/googletest/docs/primer.md b/googletest/docs/primer.md
index 6bd6e9b..cbb48ec 100644
--- a/googletest/docs/primer.md
+++ b/googletest/docs/primer.md
@@ -15,26 +15,26 @@
     that succeeds or fails as a result of other tests. googletest isolates the
     tests by running each of them on a different object. When a test fails,
     googletest allows you to run it in isolation for quick debugging.
-1.  Tests should be well *organized* and reflect the structure of the tested
+2.  Tests should be well *organized* and reflect the structure of the tested
     code. googletest groups related tests into test suites that can share data
     and subroutines. This common pattern is easy to recognize and makes tests
     easy to maintain. Such consistency is especially helpful when people switch
     projects and start to work on a new code base.
-1.  Tests should be *portable* and *reusable*. Google has a lot of code that is
+3.  Tests should be *portable* and *reusable*. Google has a lot of code that is
     platform-neutral, its tests should also be platform-neutral. googletest
     works on different OSes, with different compilers, with or without
     exceptions, so googletest tests can work with a variety of configurations.
-1.  When tests fail, they should provide as much *information* about the problem
+4.  When tests fail, they should provide as much *information* about the problem
     as possible. googletest doesn't stop at the first test failure. Instead, it
     only stops the current test and continues with the next. You can also set up
     tests that report non-fatal failures after which the current test continues.
     Thus, you can detect and fix multiple bugs in a single run-edit-compile
     cycle.
-1.  The testing framework should liberate test writers from housekeeping chores
+5.  The testing framework should liberate test writers from housekeeping chores
     and let them focus on the test *content*. googletest automatically keeps
     track of all tests defined, and doesn't require the user to enumerate them
     in order to run them.
-1.  Tests should be *fast*. With googletest, you can reuse shared resources
+6.  Tests should be *fast*. With googletest, you can reuse shared resources
     across tests and pay for the set-up/tear-down only once, without making
     tests depend on each other.
 
@@ -51,26 +51,34 @@
 Historically, googletest started to use the term _Test Case_ for grouping
 related tests, whereas current publications including the International Software
 Testing Qualifications Board ([ISTQB](http://www.istqb.org/)) and various
-textbooks on Software Quality use the term _[Test
-Suite](http://glossary.istqb.org/search/test%20suite)_ for this.
+textbooks on Software Quality use the term _[Test Suite][istqb test suite]_ for
+this.
 
 The related term _Test_, as it is used in the googletest, is corresponding to
-the term _[Test Case](http://glossary.istqb.org/search/test%20case)_ of ISTQB
-and others.
+the term _[Test Case][istqb test case]_ of ISTQB and others.
 
 The term _Test_ is commonly of broad enough sense, including ISTQB's definition
 of _Test Case_, so it's not much of a problem here. But the term _Test Case_ as
 was used in Google Test is of contradictory sense and thus confusing.
 
-googletest recently started replacing the term _Test Case_ by _Test Suite_ The
-preferred API is TestSuite*. The older TestCase* API is being slowly deprecated
-and refactored away
+googletest recently started replacing the term _Test Case_ with _Test Suite_.
+The preferred API is *TestSuite*. The older TestCase API is being slowly
+deprecated and refactored away.
 
 So please be aware of the different definitions of the terms:
 
-Meaning                                                                              | googletest Term         | [ISTQB](http://www.istqb.org/) Term
-:----------------------------------------------------------------------------------- | :---------------------- | :----------------------------------
-Exercise a particular program path with specific input values and verify the results | [TEST()](#simple-tests) | [Test Case](http://glossary.istqb.org/search/test%20case)
+| Meaning           | googletest Term         | [ISTQB](http://www.istqb.org/) |
+:                   :                         : Term                           :
+| :---------------- | :---------------------- | :----------------------------- |
+| Exercise a        | [TEST()](#simple-tests) | [Test Case][istqb test case]   |
+: particular        :                         :                                :
+: program path with :                         :                                :
+: specific input    :                         :                                :
+: values and verify :                         :                                :
+: the results       :                         :                                :
+
+[istqb test case]: http://glossary.istqb.org/en/search/test%20case
+[istqb test suite]: http://glossary.istqb.org/en/search/test%20suite
 
 ## Basic Concepts
 
@@ -235,9 +243,8 @@
 **Availability**: Linux, Windows, Mac.
 
 **See also**: For more string comparison tricks (substring, prefix, suffix, and
-regular expression matching, for example), see
-[this](https://github.com/google/googletest/blob/master/googletest/docs/advanced.md)
-in the Advanced googletest Guide.
+regular expression matching, for example), see [this](advanced.md) in the
+Advanced googletest Guide.
 
 ## Simple Tests
 
@@ -245,9 +252,9 @@
 
 1.  Use the `TEST()` macro to define and name a test function, These are
     ordinary C++ functions that don't return a value.
-1.  In this function, along with any valid C++ statements you want to include,
+2.  In this function, along with any valid C++ statements you want to include,
     use the various googletest assertions to check values.
-1.  The test's result is determined by the assertions; if any assertion in the
+3.  The test's result is determined by the assertions; if any assertion in the
     test fails (either fatally or non-fatally), or if the test crashes, the
     entire test fails. Otherwise, it succeeds.
 
@@ -309,16 +316,16 @@
 
 1.  Derive a class from `::testing::Test` . Start its body with `protected:` as
     we'll want to access fixture members from sub-classes.
-1.  Inside the class, declare any objects you plan to use.
-1.  If necessary, write a default constructor or `SetUp()` function to prepare
+2.  Inside the class, declare any objects you plan to use.
+3.  If necessary, write a default constructor or `SetUp()` function to prepare
     the objects for each test. A common mistake is to spell `SetUp()` as
     **`Setup()`** with a small `u` - Use `override` in C++11 to make sure you
     spelled it correctly
-1.  If necessary, write a destructor or `TearDown()` function to release any
+4.  If necessary, write a destructor or `TearDown()` function to release any
     resources you allocated in `SetUp()` . To learn when you should use the
     constructor/destructor and when you should use `SetUp()/TearDown()`, read
     the [FAQ](faq.md).
-1.  If needed, define subroutines for your tests to share.
+5.  If needed, define subroutines for your tests to share.
 
 When using a fixture, use `TEST_F()` instead of `TEST()` as it allows you to
 access objects and subroutines in the test fixture:
@@ -422,11 +429,11 @@
 When these tests run, the following happens:
 
 1.  googletest constructs a `QueueTest` object (let's call it `t1` ).
-1.  `t1.SetUp()` initializes `t1` .
-1.  The first test ( `IsEmptyInitially` ) runs on `t1` .
-1.  `t1.TearDown()` cleans up after the test finishes.
-1.  `t1` is destructed.
-1.  The above steps are repeated on another `QueueTest` object, this time
+2.  `t1.SetUp()` initializes `t1` .
+3.  The first test ( `IsEmptyInitially` ) runs on `t1` .
+4.  `t1.TearDown()` cleans up after the test finishes.
+5.  `t1` is destructed.
+6.  The above steps are repeated on another `QueueTest` object, this time
     running the `DequeueWorks` test.
 
 **Availability**: Linux, Windows, Mac.
diff --git a/googletest/include/gtest/gtest-death-test.h b/googletest/include/gtest/gtest-death-test.h
index 0eb5b27..cec9629 100644
--- a/googletest/include/gtest/gtest-death-test.h
+++ b/googletest/include/gtest/gtest-death-test.h
@@ -276,7 +276,7 @@
 // This macro is used for implementing macros such as
 // EXPECT_DEATH_IF_SUPPORTED and ASSERT_DEATH_IF_SUPPORTED on systems where
 // death tests are not supported. Those macros must compile on such systems
-// iff EXPECT_DEATH and ASSERT_DEATH compile with the same parameters on
+// if EXPECT_DEATH and ASSERT_DEATH compile with the same parameters on
 // systems that support death tests. This allows one to write such a macro
 // on a system that does not support death tests and be sure that it will
 // compile on a death-test supporting system. It is exposed publicly so that
@@ -289,7 +289,7 @@
 //                for program termination. This macro has to make sure this
 //                statement is compiled but not executed, to ensure that
 //                EXPECT_DEATH_IF_SUPPORTED compiles with a certain
-//                parameter iff EXPECT_DEATH compiles with it.
+//                parameter if EXPECT_DEATH compiles with it.
 //   regex     -  A regex that a macro such as EXPECT_DEATH would use to test
 //                the output of statement.  This parameter has to be
 //                compiled but not evaluated by this macro, to ensure that
diff --git a/googletest/include/gtest/gtest-matchers.h b/googletest/include/gtest/gtest-matchers.h
index 6e73ba1..7711178 100644
--- a/googletest/include/gtest/gtest-matchers.h
+++ b/googletest/include/gtest/gtest-matchers.h
@@ -95,7 +95,7 @@
   // Returns the underlying ostream.
   ::std::ostream* stream() { return stream_; }
 
-  // Returns true iff the listener is interested in an explanation of
+  // Returns true if the listener is interested in an explanation of
   // the match result.  A matcher's MatchAndExplain() method can use
   // this information to avoid generating the explanation when no one
   // intends to hear it.
@@ -140,7 +140,7 @@
 template <typename T>
 class MatcherInterface : public MatcherDescriberInterface {
  public:
-  // Returns true iff the matcher matches x; also explains the match
+  // Returns true if the matcher matches x; also explains the match
   // result to 'listener' if necessary (see the next paragraph), in
   // the form of a non-restrictive relative clause ("which ...",
   // "whose ...", etc) that describes x.  For example, the
@@ -257,13 +257,13 @@
 template <typename T>
 class MatcherBase {
  public:
-  // Returns true iff the matcher matches x; also explains the match
+  // Returns true if the matcher matches x; also explains the match
   // result to 'listener'.
   bool MatchAndExplain(const T& x, MatchResultListener* listener) const {
     return impl_->MatchAndExplain(x, listener);
   }
 
-  // Returns true iff this matcher matches x.
+  // Returns true if this matcher matches x.
   bool Matches(const T& x) const {
     DummyMatchResultListener dummy;
     return MatchAndExplain(x, &dummy);
diff --git a/googletest/include/gtest/gtest-test-part.h b/googletest/include/gtest/gtest-test-part.h
index 1e1cb09..4f189b6 100644
--- a/googletest/include/gtest/gtest-test-part.h
+++ b/googletest/include/gtest/gtest-test-part.h
@@ -87,19 +87,19 @@
   // Gets the message associated with the test part.
   const char* message() const { return message_.c_str(); }
 
-  // Returns true iff the test part was skipped.
+  // Returns true if the test part was skipped.
   bool skipped() const { return type_ == kSkip; }
 
-  // Returns true iff the test part passed.
+  // Returns true if the test part passed.
   bool passed() const { return type_ == kSuccess; }
 
-  // Returns true iff the test part non-fatally failed.
+  // Returns true if the test part non-fatally failed.
   bool nonfatally_failed() const { return type_ == kNonFatalFailure; }
 
-  // Returns true iff the test part fatally failed.
+  // Returns true if the test part fatally failed.
   bool fatally_failed() const { return type_ == kFatalFailure; }
 
-  // Returns true iff the test part failed.
+  // Returns true if the test part failed.
   bool failed() const { return fatally_failed() || nonfatally_failed(); }
 
  private:
diff --git a/googletest/include/gtest/gtest.h b/googletest/include/gtest/gtest.h
index ff77075..fbff73e 100644
--- a/googletest/include/gtest/gtest.h
+++ b/googletest/include/gtest/gtest.h
@@ -308,7 +308,7 @@
     return *this;
   }
 
-  // Returns true iff the assertion succeeded.
+  // Returns true if the assertion succeeded.
   operator bool() const { return success_; }  // NOLINT
 
   // Returns the assertion's negation. Used with EXPECT/ASSERT_FALSE.
@@ -412,6 +412,8 @@
   // test in test case Foo.  Hence a sub-class can define its own
   // SetUpTestSuite() method to shadow the one defined in the super
   // class.
+  // Failures that happen during SetUpTestSuite are logged but otherwise
+  // ignored.
   static void SetUpTestSuite() {}
 
   // Tears down the stuff shared by all tests in this test suite.
@@ -420,6 +422,8 @@
   // test in test case Foo.  Hence a sub-class can define its own
   // TearDownTestSuite() method to shadow the one defined in the super
   // class.
+  // Failures that happen during TearDownTestSuite are logged but otherwise
+  // ignored.
   static void TearDownTestSuite() {}
 
   // Legacy API is deprecated but still available
@@ -428,16 +432,16 @@
   static void SetUpTestCase() {}
 #endif  // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
 
-  // Returns true iff the current test has a fatal failure.
+  // Returns true if the current test has a fatal failure.
   static bool HasFatalFailure();
 
-  // Returns true iff the current test has a non-fatal failure.
+  // Returns true if the current test has a non-fatal failure.
   static bool HasNonfatalFailure();
 
-  // Returns true iff the current test was skipped.
+  // Returns true if the current test was skipped.
   static bool IsSkipped();
 
-  // Returns true iff the current test has a (either fatal or
+  // Returns true if the current test has a (either fatal or
   // non-fatal) failure.
   static bool HasFailure() { return HasFatalFailure() || HasNonfatalFailure(); }
 
@@ -468,7 +472,7 @@
   virtual void TearDown();
 
  private:
-  // Returns true iff the current test has the same fixture class as
+  // Returns true if the current test has the same fixture class as
   // the first test in the current test suite.
   static bool HasSameFixtureClass();
 
@@ -570,19 +574,19 @@
   // Returns the number of the test properties.
   int test_property_count() const;
 
-  // Returns true iff the test passed (i.e. no test part failed).
+  // Returns true if the test passed (i.e. no test part failed).
   bool Passed() const { return !Skipped() && !Failed(); }
 
-  // Returns true iff the test was skipped.
+  // Returns true if the test was skipped.
   bool Skipped() const;
 
-  // Returns true iff the test failed.
+  // Returns true if the test failed.
   bool Failed() const;
 
-  // Returns true iff the test fatally failed.
+  // Returns true if the test fatally failed.
   bool HasFatalFailure() const;
 
-  // Returns true iff the test has a non-fatal failure.
+  // Returns true if the test has a non-fatal failure.
   bool HasNonfatalFailure() const;
 
   // Returns the elapsed time, in milliseconds.
@@ -746,7 +750,7 @@
   // contains the character 'A' or starts with "Foo.".
   bool should_run() const { return should_run_; }
 
-  // Returns true iff this test will appear in the XML report.
+  // Returns true if this test will appear in the XML report.
   bool is_reportable() const {
     // The XML report includes tests matching the filter, excluding those
     // run in other shards.
@@ -805,8 +809,8 @@
   const std::unique_ptr<const ::std::string> value_param_;
   internal::CodeLocation location_;
   const internal::TypeId fixture_class_id_;   // ID of the test fixture class
-  bool should_run_;                 // True iff this test should run
-  bool is_disabled_;                // True iff this test is disabled
+  bool should_run_;                 // True if this test should run
+  bool is_disabled_;                // True if this test is disabled
   bool matches_filter_;             // True if this test matches the
                                     // user-specified filter.
   bool is_in_another_shard_;        // Will be run in another shard.
@@ -881,10 +885,10 @@
   // Gets the number of all tests in this test suite.
   int total_test_count() const;
 
-  // Returns true iff the test suite passed.
+  // Returns true if the test suite passed.
   bool Passed() const { return !Failed(); }
 
-  // Returns true iff the test suite failed.
+  // Returns true if the test suite failed.
   bool Failed() const { return failed_test_count() > 0; }
 
   // Returns the elapsed time, in milliseconds.
@@ -952,33 +956,33 @@
     }
   }
 
-  // Returns true iff test passed.
+  // Returns true if test passed.
   static bool TestPassed(const TestInfo* test_info) {
     return test_info->should_run() && test_info->result()->Passed();
   }
 
-  // Returns true iff test skipped.
+  // Returns true if test skipped.
   static bool TestSkipped(const TestInfo* test_info) {
     return test_info->should_run() && test_info->result()->Skipped();
   }
 
-  // Returns true iff test failed.
+  // Returns true if test failed.
   static bool TestFailed(const TestInfo* test_info) {
     return test_info->should_run() && test_info->result()->Failed();
   }
 
-  // Returns true iff the test is disabled and will be reported in the XML
+  // Returns true if the test is disabled and will be reported in the XML
   // report.
   static bool TestReportableDisabled(const TestInfo* test_info) {
     return test_info->is_reportable() && test_info->is_disabled_;
   }
 
-  // Returns true iff test is disabled.
+  // Returns true if test is disabled.
   static bool TestDisabled(const TestInfo* test_info) {
     return test_info->is_disabled_;
   }
 
-  // Returns true iff this test will appear in the XML report.
+  // Returns true if this test will appear in the XML report.
   static bool TestReportable(const TestInfo* test_info) {
     return test_info->is_reportable();
   }
@@ -1010,7 +1014,7 @@
   internal::SetUpTestSuiteFunc set_up_tc_;
   // Pointer to the function that tears down the test suite.
   internal::TearDownTestSuiteFunc tear_down_tc_;
-  // True iff any test in this test suite should run.
+  // True if any test in this test suite should run.
   bool should_run_;
   // The start time, in milliseconds since UNIX Epoch.
   TimeInMillis start_timestamp_;
@@ -1345,10 +1349,10 @@
   // Gets the elapsed time, in milliseconds.
   TimeInMillis elapsed_time() const;
 
-  // Returns true iff the unit test passed (i.e. all test suites passed).
+  // Returns true if the unit test passed (i.e. all test suites passed).
   bool Passed() const;
 
-  // Returns true iff the unit test failed (i.e. some test suite failed
+  // Returns true if the unit test failed (i.e. some test suite failed
   // or something outside of all tests failed).
   bool Failed() const;
 
@@ -2263,7 +2267,7 @@
 
 
 // Compile-time assertion for type equality.
-// StaticAssertTypeEq<type1, type2>() compiles iff type1 and type2 are
+// StaticAssertTypeEq<type1, type2>() compiles if type1 and type2 are
 // the same type.  The value it returns is not interesting.
 //
 // Instead of making StaticAssertTypeEq a class template, we make it a
diff --git a/googletest/include/gtest/internal/gtest-filepath.h b/googletest/include/gtest/internal/gtest-filepath.h
index ae38d95..5d21bbc 100644
--- a/googletest/include/gtest/internal/gtest-filepath.h
+++ b/googletest/include/gtest/internal/gtest-filepath.h
@@ -110,7 +110,7 @@
                                          const FilePath& base_name,
                                          const char* extension);
 
-  // Returns true iff the path is "".
+  // Returns true if the path is "".
   bool IsEmpty() const { return pathname_.empty(); }
 
   // If input name has a trailing separator character, removes it and returns
diff --git a/googletest/include/gtest/internal/gtest-internal.h b/googletest/include/gtest/internal/gtest-internal.h
index 2732660..08531d8 100644
--- a/googletest/include/gtest/internal/gtest-internal.h
+++ b/googletest/include/gtest/internal/gtest-internal.h
@@ -189,7 +189,7 @@
 //   expected_value:      "5"
 //   actual_value:        "6"
 //
-// The ignoring_case parameter is true iff the assertion is a
+// The ignoring_case parameter is true if the assertion is a
 // *_STRCASEEQ*.  When it's true, the string " (ignoring case)" will
 // be inserted into the message.
 GTEST_API_ AssertionResult EqFailure(const char* expected_expression,
@@ -318,14 +318,14 @@
   // Returns the sign bit of this number.
   Bits sign_bit() const { return kSignBitMask & u_.bits_; }
 
-  // Returns true iff this is NAN (not a number).
+  // Returns true if 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
+  // Returns true if 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.
@@ -848,7 +848,7 @@
 };
 
 // Defining a variable of type CompileAssertTypesEqual<T1, T2> will cause a
-// compiler error iff T1 and T2 are different types.
+// compiler error if T1 and T2 are different types.
 template <typename T1, typename T2>
 struct CompileAssertTypesEqual;
 
@@ -895,7 +895,7 @@
     GTEST_REMOVE_CONST_(GTEST_REMOVE_REFERENCE_(T))
 
 // IsAProtocolMessage<T>::value is a compile-time bool constant that's
-// true iff T is type proto2::Message or a subclass of it.
+// true if T is type proto2::Message or a subclass of it.
 template <typename T>
 struct IsAProtocolMessage
     : public bool_constant<
diff --git a/googletest/include/gtest/internal/gtest-port.h b/googletest/include/gtest/internal/gtest-port.h
index 0a9a331..4f887c5 100644
--- a/googletest/include/gtest/internal/gtest-port.h
+++ b/googletest/include/gtest/internal/gtest-port.h
@@ -362,7 +362,7 @@
 #  include <android/api-level.h>  // NOLINT
 #endif
 
-// Defines this to true iff Google Test can use POSIX regular expressions.
+// Defines this to true if Google Test can use POSIX regular expressions.
 #ifndef GTEST_HAS_POSIX_RE
 # if GTEST_OS_LINUX_ANDROID
 // On Android, <regex.h> is only available starting with Gingerbread.
@@ -403,7 +403,7 @@
 // The user didn't tell us whether exceptions are enabled, so we need
 // to figure it out.
 # if defined(_MSC_VER) && defined(_CPPUNWIND)
-// MSVC defines _CPPUNWIND to 1 iff exceptions are enabled.
+// MSVC defines _CPPUNWIND to 1 if exceptions are enabled.
 #  define GTEST_HAS_EXCEPTIONS 1
 # elif defined(__BORLANDC__)
 // C++Builder's implementation of the STL uses the _HAS_EXCEPTIONS
@@ -414,8 +414,8 @@
 #  endif  // _HAS_EXCEPTIONS
 #  define GTEST_HAS_EXCEPTIONS _HAS_EXCEPTIONS
 # elif defined(__clang__)
-// clang defines __EXCEPTIONS iff exceptions are enabled before clang 220714,
-// but iff cleanups are enabled after that. In Obj-C++ files, there can be
+// clang defines __EXCEPTIONS if exceptions are enabled before clang 220714,
+// but if cleanups are enabled after that. In Obj-C++ files, there can be
 // cleanups for ObjC exceptions which also need cleanups, even if C++ exceptions
 // are disabled. clang has __has_feature(cxx_exceptions) which checks for C++
 // exceptions starting at clang r206352, but which checked for cleanups prior to
@@ -423,7 +423,7 @@
 // __EXCEPTIONS && __has_feature(cxx_exceptions).
 #  define GTEST_HAS_EXCEPTIONS (__EXCEPTIONS && __has_feature(cxx_exceptions))
 # elif defined(__GNUC__) && __EXCEPTIONS
-// gcc defines __EXCEPTIONS to 1 iff exceptions are enabled.
+// gcc defines __EXCEPTIONS to 1 if exceptions are enabled.
 #  define GTEST_HAS_EXCEPTIONS 1
 # elif defined(__SUNPRO_CC)
 // Sun Pro CC supports exceptions.  However, there is no compile-time way of
@@ -431,7 +431,7 @@
 // they are enabled unless the user tells us otherwise.
 #  define GTEST_HAS_EXCEPTIONS 1
 # elif defined(__IBMCPP__) && __EXCEPTIONS
-// xlC defines __EXCEPTIONS to 1 iff exceptions are enabled.
+// xlC defines __EXCEPTIONS to 1 if exceptions are enabled.
 #  define GTEST_HAS_EXCEPTIONS 1
 # elif defined(__HP_aCC)
 // Exception handling is in effect by default in HP aCC compiler. It has to
@@ -472,13 +472,13 @@
 
 # ifdef _MSC_VER
 
-#  ifdef _CPPRTTI  // MSVC defines this macro iff RTTI is enabled.
+#  ifdef _CPPRTTI  // MSVC defines this macro if RTTI is enabled.
 #   define GTEST_HAS_RTTI 1
 #  else
 #   define GTEST_HAS_RTTI 0
 #  endif
 
-// Starting with version 4.3.2, gcc defines __GXX_RTTI iff RTTI is enabled.
+// Starting with version 4.3.2, gcc defines __GXX_RTTI if RTTI is enabled.
 # elif defined(__GNUC__)
 
 #  ifdef __GXX_RTTI
@@ -909,9 +909,9 @@
   // Returns the string representation of the regex.
   const char* pattern() const { return pattern_; }
 
-  // FullMatch(str, re) returns true iff regular expression re matches
+  // FullMatch(str, re) returns true if regular expression re matches
   // the entire str.
-  // PartialMatch(str, re) returns true iff regular expression re
+  // PartialMatch(str, re) returns true if regular expression re
   // matches a substring of str (including str itself).
   static bool FullMatch(const ::std::string& str, const RE& re) {
     return FullMatch(str.c_str(), re);
@@ -1266,7 +1266,7 @@
   void Reset(Handle handle);
 
  private:
-  // Returns true iff the handle is a valid handle object that can be closed.
+  // Returns true if the handle is a valid handle object that can be closed.
   bool IsCloseable() const;
 
   Handle handle_;
@@ -1368,7 +1368,7 @@
   // When non-NULL, used to block execution until the controller thread
   // notifies.
   Notification* const thread_can_start_;
-  bool finished_;  // true iff we know that the thread function has finished.
+  bool finished_;  // true if we know that the thread function has finished.
   pthread_t thread_;  // The native thread object.
 
   GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadWithParam);
diff --git a/googletest/include/gtest/internal/gtest-string.h b/googletest/include/gtest/internal/gtest-string.h
index 884b1e1..26d8407 100644
--- a/googletest/include/gtest/internal/gtest-string.h
+++ b/googletest/include/gtest/internal/gtest-string.h
@@ -94,7 +94,7 @@
   static const char* Utf16ToAnsi(LPCWSTR utf16_str);
 #endif
 
-  // Compares two C strings.  Returns true iff they have the same content.
+  // Compares two C strings.  Returns true if they have the same content.
   //
   // Unlike strcmp(), this function can handle NULL argument(s).  A
   // NULL C string is considered different to any non-NULL C string,
@@ -107,7 +107,7 @@
   // returned.
   static std::string ShowWideCString(const wchar_t* wide_c_str);
 
-  // Compares two wide C strings.  Returns true iff they have the same
+  // Compares two wide C strings.  Returns true if they have the same
   // content.
   //
   // Unlike wcscmp(), this function can handle NULL argument(s).  A
@@ -115,7 +115,7 @@
   // including the empty string.
   static bool WideCStringEquals(const wchar_t* lhs, const wchar_t* rhs);
 
-  // Compares two C strings, ignoring case.  Returns true iff they
+  // Compares two C strings, ignoring case.  Returns true if they
   // have the same content.
   //
   // Unlike strcasecmp(), this function can handle NULL argument(s).
@@ -124,7 +124,7 @@
   static bool CaseInsensitiveCStringEquals(const char* lhs,
                                            const char* rhs);
 
-  // Compares two wide C strings, ignoring case.  Returns true iff they
+  // Compares two wide C strings, ignoring case.  Returns true if they
   // have the same content.
   //
   // Unlike wcscasecmp(), this function can handle NULL argument(s).
@@ -139,7 +139,7 @@
   static bool CaseInsensitiveWideCStringEquals(const wchar_t* lhs,
                                                const wchar_t* rhs);
 
-  // Returns true iff the given string ends with the given suffix, ignoring
+  // Returns true if the given string ends with the given suffix, ignoring
   // case. Any string is considered to end with an empty suffix.
   static bool EndsWithCaseInsensitive(
       const std::string& str, const std::string& suffix);
diff --git a/googletest/include/gtest/internal/gtest-type-util.h b/googletest/include/gtest/internal/gtest-type-util.h
index 4cd1cf3..5f9a056 100644
--- a/googletest/include/gtest/internal/gtest-type-util.h
+++ b/googletest/include/gtest/internal/gtest-type-util.h
@@ -105,7 +105,7 @@
 
 #if GTEST_HAS_TYPED_TEST || GTEST_HAS_TYPED_TEST_P
 
-// AssertyTypeEq<T1, T2>::type is defined iff T1 and T2 are the same
+// AssertyTypeEq<T1, T2>::type is defined if T1 and T2 are the same
 // type.  This can be used as a compile-time assertion to ensure that
 // two types are equal.
 
diff --git a/googletest/include/gtest/internal/gtest-type-util.h.pump b/googletest/include/gtest/internal/gtest-type-util.h.pump
index eb014ee..3a3896b 100644
--- a/googletest/include/gtest/internal/gtest-type-util.h.pump
+++ b/googletest/include/gtest/internal/gtest-type-util.h.pump
@@ -104,7 +104,7 @@
 
 #if GTEST_HAS_TYPED_TEST || GTEST_HAS_TYPED_TEST_P
 
-// AssertyTypeEq<T1, T2>::type is defined iff T1 and T2 are the same
+// AssertyTypeEq<T1, T2>::type is defined if T1 and T2 are the same
 // type.  This can be used as a compile-time assertion to ensure that
 // two types are equal.
 
diff --git a/googletest/samples/prime_tables.h b/googletest/samples/prime_tables.h
index 119545a..4178e70 100644
--- a/googletest/samples/prime_tables.h
+++ b/googletest/samples/prime_tables.h
@@ -43,7 +43,7 @@
  public:
   virtual ~PrimeTable() {}
 
-  // Returns true iff n is a prime number.
+  // Returns true if n is a prime number.
   virtual bool IsPrime(int n) const = 0;
 
   // Returns the smallest prime number greater than p; or returns -1
diff --git a/googletest/samples/sample1.cc b/googletest/samples/sample1.cc
index 13cec1d..58dbf17 100644
--- a/googletest/samples/sample1.cc
+++ b/googletest/samples/sample1.cc
@@ -41,7 +41,7 @@
   return result;
 }
 
-// Returns true iff n is a prime number.
+// Returns true if n is a prime number.
 bool IsPrime(int n) {
   // Trivial case 1: small numbers
   if (n <= 1) return false;
diff --git a/googletest/samples/sample1.h b/googletest/samples/sample1.h
index 2c3e9f0..a90eae4 100644
--- a/googletest/samples/sample1.h
+++ b/googletest/samples/sample1.h
@@ -35,7 +35,7 @@
 // Returns n! (the factorial of n).  For negative n, n! is defined to be 1.
 int Factorial(int n);
 
-// Returns true iff n is a prime number.
+// Returns true if n is a prime number.
 bool IsPrime(int n);
 
 #endif  // GTEST_SAMPLES_SAMPLE1_H_
diff --git a/googletest/samples/sample9_unittest.cc b/googletest/samples/sample9_unittest.cc
index c0d8ff2..e502d08 100644
--- a/googletest/samples/sample9_unittest.cc
+++ b/googletest/samples/sample9_unittest.cc
@@ -135,10 +135,10 @@
   // This is an example of using the UnitTest reflection API to inspect test
   // results. Here we discount failures from the tests we expected to fail.
   int unexpectedly_failed_tests = 0;
-  for (int i = 0; i < unit_test.total_test_case_count(); ++i) {
-    const TestCase& test_case = *unit_test.GetTestCase(i);
-    for (int j = 0; j < test_case.total_test_count(); ++j) {
-      const TestInfo& test_info = *test_case.GetTestInfo(j);
+  for (int i = 0; i < unit_test.total_test_suite_count(); ++i) {
+    const testing::TestSuite& test_suite = *unit_test.GetTestSuite(i);
+    for (int j = 0; j < test_suite.total_test_count(); ++j) {
+      const TestInfo& test_info = *test_suite.GetTestInfo(j);
       // Counts failed tests that were not meant to fail (those without
       // 'Fails' in the name).
       if (test_info.result()->Failed() &&
diff --git a/googletest/src/gtest-death-test.cc b/googletest/src/gtest-death-test.cc
index 2b1b419..e5ec287 100644
--- a/googletest/src/gtest-death-test.cc
+++ b/googletest/src/gtest-death-test.cc
@@ -563,7 +563,7 @@
 //   status_ok: true if exit_status is acceptable in the context of
 //              this particular death test, which fails if it is false
 //
-// Returns true iff all of the above conditions are met.  Otherwise, the
+// Returns true if all of the above conditions are met.  Otherwise, the
 // first failing condition, in the order given above, is the one that is
 // reported. Also sets the last death test message string.
 bool DeathTestImpl::Passed(bool status_ok) {
diff --git a/googletest/src/gtest-internal-inl.h b/googletest/src/gtest-internal-inl.h
index 53cd22b..e29d992 100644
--- a/googletest/src/gtest-internal-inl.h
+++ b/googletest/src/gtest-internal-inl.h
@@ -99,14 +99,14 @@
 // A valid random seed must be in [1, kMaxRandomSeed].
 const int kMaxRandomSeed = 99999;
 
-// g_help_flag is true iff the --help flag or an equivalent form is
+// g_help_flag is true if the --help flag or an equivalent form is
 // specified on the command line.
 GTEST_API_ extern bool g_help_flag;
 
 // Returns the current time in milliseconds.
 GTEST_API_ TimeInMillis GetTimeInMillis();
 
-// Returns true iff Google Test should use colors in the output.
+// Returns true if Google Test should use colors in the output.
 GTEST_API_ bool ShouldUseColor(bool stdout_is_tty);
 
 // Formats the given time in milliseconds as seconds.
@@ -266,7 +266,7 @@
 GTEST_API_ Int32 Int32FromEnvOrDie(const char* env_var, Int32 default_val);
 
 // Given the total number of shards, the shard index, and the test id,
-// returns true iff the test should be run on this shard. The test id is
+// returns true if the test should be run on this shard. The test id is
 // some arbitrary but unique non-negative integer assigned to each test
 // method. Assumes that 0 <= shard_index < total_shards.
 GTEST_API_ bool ShouldRunTestOnShard(
@@ -352,7 +352,7 @@
   // TestPropertyKeyIs has NO default constructor.
   explicit TestPropertyKeyIs(const std::string& key) : key_(key) {}
 
-  // Returns true iff the test name of test property matches on key_.
+  // Returns true if the test name of test property matches on key_.
   bool operator()(const TestProperty& test_property) const {
     return test_property.key() == key_;
   }
@@ -385,14 +385,14 @@
 
   // Functions for processing the gtest_filter flag.
 
-  // Returns true iff the wildcard pattern matches the string.  The
+  // Returns true if the wildcard pattern matches the string.  The
   // first ':' or '\0' character in pattern marks the end of it.
   //
   // This recursive algorithm isn't very efficient, but is clear and
   // works well enough for matching test names, which are short.
   static bool PatternMatchesString(const char *pattern, const char *str);
 
-  // Returns true iff the user-specified filter matches the test suite
+  // Returns true if the user-specified filter matches the test suite
   // name and the test name.
   static bool FilterMatchesTest(const std::string& test_suite_name,
                                 const std::string& test_name);
@@ -577,10 +577,10 @@
   // Gets the elapsed time, in milliseconds.
   TimeInMillis elapsed_time() const { return elapsed_time_; }
 
-  // Returns true iff the unit test passed (i.e. all test suites passed).
+  // Returns true if the unit test passed (i.e. all test suites passed).
   bool Passed() const { return !Failed(); }
 
-  // Returns true iff the unit test failed (i.e. some test suite failed
+  // Returns true if the unit test failed (i.e. some test suite failed
   // or something outside of all tests failed).
   bool Failed() const {
     return failed_test_suite_count() > 0 || ad_hoc_test_result()->Failed();
@@ -911,7 +911,7 @@
   // desired.
   OsStackTraceGetterInterface* os_stack_trace_getter_;
 
-  // True iff PostFlagParsingInit() has been called.
+  // True if PostFlagParsingInit() has been called.
   bool post_flag_parse_init_performed_;
 
   // The random number seed used at the beginning of the test run.
diff --git a/googletest/src/gtest-port.cc b/googletest/src/gtest-port.cc
index 74daaaa..9024f03 100644
--- a/googletest/src/gtest-port.cc
+++ b/googletest/src/gtest-port.cc
@@ -715,7 +715,7 @@
   free(const_cast<char*>(pattern_));
 }
 
-// Returns true iff regular expression re matches the entire str.
+// Returns true if regular expression re matches the entire str.
 bool RE::FullMatch(const char* str, const RE& re) {
   if (!re.is_valid_) return false;
 
@@ -723,7 +723,7 @@
   return regexec(&re.full_regex_, str, 1, &match, 0) == 0;
 }
 
-// Returns true iff regular expression re matches a substring of str
+// Returns true if regular expression re matches a substring of str
 // (including str itself).
 bool RE::PartialMatch(const char* str, const RE& re) {
   if (!re.is_valid_) return false;
@@ -764,13 +764,13 @@
 
 #elif GTEST_USES_SIMPLE_RE
 
-// Returns true iff ch appears anywhere in str (excluding the
+// Returns true if ch appears anywhere in str (excluding the
 // terminating '\0' character).
 bool IsInSet(char ch, const char* str) {
   return ch != '\0' && strchr(str, ch) != nullptr;
 }
 
-// Returns true iff ch belongs to the given classification.  Unlike
+// Returns true if ch belongs to the given classification.  Unlike
 // similar functions in <ctype.h>, these aren't affected by the
 // current locale.
 bool IsAsciiDigit(char ch) { return '0' <= ch && ch <= '9'; }
@@ -784,12 +784,12 @@
       ('0' <= ch && ch <= '9') || ch == '_';
 }
 
-// Returns true iff "\\c" is a supported escape sequence.
+// Returns true if "\\c" is a supported escape sequence.
 bool IsValidEscape(char c) {
   return (IsAsciiPunct(c) || IsInSet(c, "dDfnrsStvwW"));
 }
 
-// Returns true iff the given atom (specified by escaped and pattern)
+// Returns true if the given atom (specified by escaped and pattern)
 // matches ch.  The result is undefined if the atom is invalid.
 bool AtomMatchesChar(bool escaped, char pattern_char, char ch) {
   if (escaped) {  // "\\p" where p is pattern_char.
@@ -828,7 +828,7 @@
 
   bool is_valid = true;
 
-  // True iff ?, *, or + can follow the previous atom.
+  // True if ?, *, or + can follow the previous atom.
   bool prev_repeatable = false;
   for (int i = 0; regex[i]; i++) {
     if (regex[i] == '\\') {  // An escape sequence
@@ -904,7 +904,7 @@
   return false;
 }
 
-// Returns true iff regex matches a prefix of str.  regex must be a
+// Returns true if regex matches a prefix of str.  regex must be a
 // valid simple regular expression and not start with "^", or the
 // result is undefined.
 bool MatchRegexAtHead(const char* regex, const char* str) {
@@ -935,7 +935,7 @@
   }
 }
 
-// Returns true iff regex matches any substring of str.  regex must be
+// Returns true if regex matches any substring of str.  regex must be
 // a valid simple regular expression, or the result is undefined.
 //
 // The algorithm is recursive, but the recursion depth doesn't exceed
@@ -964,12 +964,12 @@
   free(const_cast<char*>(full_pattern_));
 }
 
-// Returns true iff regular expression re matches the entire str.
+// Returns true if regular expression re matches the entire str.
 bool RE::FullMatch(const char* str, const RE& re) {
   return re.is_valid_ && MatchRegexAnywhere(re.full_pattern_, str);
 }
 
-// Returns true iff regular expression re matches a substring of str
+// Returns true if regular expression re matches a substring of str
 // (including str itself).
 bool RE::PartialMatch(const char* str, const RE& re) {
   return re.is_valid_ && MatchRegexAnywhere(re.pattern_, str);
@@ -1330,7 +1330,7 @@
 // Reads and returns the Boolean environment variable corresponding to
 // the given flag; if it's not set, returns default_value.
 //
-// The value is considered true iff it's not "0".
+// The value is considered true if it's not "0".
 bool BoolFromGTestEnv(const char* flag, bool default_value) {
 #if defined(GTEST_GET_BOOL_FROM_ENV_)
   return GTEST_GET_BOOL_FROM_ENV_(flag, default_value);
diff --git a/googletest/src/gtest.cc b/googletest/src/gtest.cc
index d6b5630..a74041e 100644
--- a/googletest/src/gtest.cc
+++ b/googletest/src/gtest.cc
@@ -177,7 +177,7 @@
 // stack trace.
 const char kStackTraceMarker[] = "\nStack trace:\n";
 
-// g_help_flag is true iff the --help flag or an equivalent form is
+// g_help_flag is true if the --help flag or an equivalent form is
 // specified on the command line.
 bool g_help_flag = false;
 
@@ -217,12 +217,12 @@
 GTEST_DEFINE_bool_(
     break_on_failure,
     internal::BoolFromGTestEnv("break_on_failure", false),
-    "True iff a failed assertion should be a debugger break-point.");
+    "True if a failed assertion should be a debugger break-point.");
 
 GTEST_DEFINE_bool_(
     catch_exceptions,
     internal::BoolFromGTestEnv("catch_exceptions", true),
-    "True iff " GTEST_NAME_
+    "True if " GTEST_NAME_
     " should catch exceptions and treat them as test failures.");
 
 GTEST_DEFINE_string_(
@@ -273,13 +273,13 @@
 GTEST_DEFINE_bool_(
     print_time,
     internal::BoolFromGTestEnv("print_time", true),
-    "True iff " GTEST_NAME_
+    "True if " GTEST_NAME_
     " should display elapsed time in text output.");
 
 GTEST_DEFINE_bool_(
     print_utf8,
     internal::BoolFromGTestEnv("print_utf8", true),
-    "True iff " GTEST_NAME_
+    "True if " GTEST_NAME_
     " prints UTF8 characters as text.");
 
 GTEST_DEFINE_int32_(
@@ -296,13 +296,13 @@
 
 GTEST_DEFINE_bool_(
     show_internal_stack_frames, false,
-    "True iff " GTEST_NAME_ " should include internal stack frames when "
+    "True if " GTEST_NAME_ " should include internal stack frames when "
     "printing test failure stack traces.");
 
 GTEST_DEFINE_bool_(
     shuffle,
     internal::BoolFromGTestEnv("shuffle", false),
-    "True iff " GTEST_NAME_
+    "True if " GTEST_NAME_
     " should randomize tests' order on every run.");
 
 GTEST_DEFINE_int32_(
@@ -354,7 +354,7 @@
   return state_ % range;
 }
 
-// GTestIsInitialized() returns true iff the user has initialized
+// GTestIsInitialized() returns true if the user has initialized
 // Google Test.  Useful for catching the user mistake of not initializing
 // Google Test before calling RUN_ALL_TESTS().
 static bool GTestIsInitialized() { return GetArgvs().size() > 0; }
@@ -371,17 +371,17 @@
   return sum;
 }
 
-// Returns true iff the test suite passed.
+// Returns true if the test suite passed.
 static bool TestSuitePassed(const TestSuite* test_suite) {
   return test_suite->should_run() && test_suite->Passed();
 }
 
-// Returns true iff the test suite failed.
+// Returns true if the test suite failed.
 static bool TestSuiteFailed(const TestSuite* test_suite) {
   return test_suite->should_run() && test_suite->Failed();
 }
 
-// Returns true iff test_suite contains at least one test that should
+// Returns true if test_suite contains at least one test that should
 // run.
 static bool ShouldRunTestSuite(const TestSuite* test_suite) {
   return test_suite->should_run();
@@ -482,7 +482,7 @@
   return result.string();
 }
 
-// Returns true iff the wildcard pattern matches the string.  The
+// Returns true if the wildcard pattern matches the string.  The
 // first ':' or '\0' character in pattern marks the end of it.
 //
 // This recursive algorithm isn't very efficient, but is clear and
@@ -525,7 +525,7 @@
   }
 }
 
-// Returns true iff the user-specified filter matches the test suite
+// Returns true if the user-specified filter matches the test suite
 // name and the test name.
 bool UnitTestOptions::FilterMatchesTest(const std::string& test_suite_name,
                                         const std::string& test_name) {
@@ -910,7 +910,7 @@
 
 #endif  // GTEST_OS_WINDOWS_MOBILE
 
-// Compares two C strings.  Returns true iff they have the same content.
+// Compares two C strings.  Returns true if they have the same content.
 //
 // Unlike strcmp(), this function can handle NULL argument(s).  A NULL
 // C string is considered different to any non-NULL C string,
@@ -1320,7 +1320,7 @@
 //   lhs_value:      "5"
 //   rhs_value:      "6"
 //
-// The ignoring_case parameter is true iff the assertion is a
+// The ignoring_case parameter is true if the assertion is a
 // *_STRCASEEQ*.  When it's true, the string "Ignoring case" will
 // be inserted into the message.
 AssertionResult EqFailure(const char* lhs_expression,
@@ -1563,7 +1563,7 @@
 
 // Helper functions for implementing IsSubString() and IsNotSubstring().
 
-// This group of overloaded functions return true iff needle is a
+// This group of overloaded functions return true if needle is a
 // substring of haystack.  NULL is considered a substring of itself
 // only.
 
@@ -1865,7 +1865,7 @@
   return internal::WideStringToUtf8(wide_c_str, -1);
 }
 
-// Compares two wide C strings.  Returns true iff they have the same
+// Compares two wide C strings.  Returns true if they have the same
 // content.
 //
 // Unlike wcscmp(), this function can handle NULL argument(s).  A NULL
@@ -1910,7 +1910,7 @@
                             << " vs " << PrintToString(s2);
 }
 
-// Compares two C strings, ignoring case.  Returns true iff they have
+// Compares two C strings, ignoring case.  Returns true if they have
 // the same content.
 //
 // Unlike strcasecmp(), this function can handle NULL argument(s).  A
@@ -1922,7 +1922,7 @@
   return posix::StrCaseCmp(lhs, rhs) == 0;
 }
 
-  // Compares two wide C strings, ignoring case.  Returns true iff they
+  // Compares two wide C strings, ignoring case.  Returns true if they
   // have the same content.
   //
   // Unlike wcscasecmp(), this function can handle NULL argument(s).
@@ -1949,14 +1949,14 @@
   // Other unknown OSes may not define it either.
   wint_t left, right;
   do {
-    left = towlower(*lhs++);
-    right = towlower(*rhs++);
+    left = towlower(static_cast<wint_t>(*lhs++));
+    right = towlower(static_cast<wint_t>(*rhs++));
   } while (left && left == right);
   return left == right;
 #endif  // OS selector
 }
 
-// Returns true iff str ends with the given suffix, ignoring case.
+// Returns true if str ends with the given suffix, ignoring case.
 // Any string is considered to end with an empty suffix.
 bool String::EndsWithCaseInsensitive(
     const std::string& str, const std::string& suffix) {
@@ -2198,12 +2198,12 @@
   return result.skipped();
 }
 
-// Returns true iff the test was skipped.
+// Returns true if the test was skipped.
 bool TestResult::Skipped() const {
   return !Failed() && CountIf(test_part_results_, TestPartSkipped) > 0;
 }
 
-// Returns true iff the test failed.
+// Returns true if the test failed.
 bool TestResult::Failed() const {
   for (int i = 0; i < total_part_count(); ++i) {
     if (GetTestPartResult(i).failed())
@@ -2212,22 +2212,22 @@
   return false;
 }
 
-// Returns true iff the test part fatally failed.
+// Returns true if the test part fatally failed.
 static bool TestPartFatallyFailed(const TestPartResult& result) {
   return result.fatally_failed();
 }
 
-// Returns true iff the test fatally failed.
+// Returns true if the test fatally failed.
 bool TestResult::HasFatalFailure() const {
   return CountIf(test_part_results_, TestPartFatallyFailed) > 0;
 }
 
-// Returns true iff the test part non-fatally failed.
+// Returns true if the test part non-fatally failed.
 static bool TestPartNonfatallyFailed(const TestPartResult& result) {
   return result.nonfatally_failed();
 }
 
-// Returns true iff the test has a non-fatal failure.
+// Returns true if the test has a non-fatal failure.
 bool TestResult::HasNonfatalFailure() const {
   return CountIf(test_part_results_, TestPartNonfatallyFailed) > 0;
 }
@@ -2523,18 +2523,18 @@
       this, &Test::TearDown, "TearDown()");
 }
 
-// Returns true iff the current test has a fatal failure.
+// Returns true if the current test has a fatal failure.
 bool Test::HasFatalFailure() {
   return internal::GetUnitTestImpl()->current_test_result()->HasFatalFailure();
 }
 
-// Returns true iff the current test has a non-fatal failure.
+// Returns true if the current test has a non-fatal failure.
 bool Test::HasNonfatalFailure() {
   return internal::GetUnitTestImpl()->current_test_result()->
       HasNonfatalFailure();
 }
 
-// Returns true iff the current test was skipped.
+// Returns true if the current test was skipped.
 bool Test::IsSkipped() {
   return internal::GetUnitTestImpl()->current_test_result()->Skipped();
 }
@@ -2633,7 +2633,7 @@
   explicit TestNameIs(const char* name)
       : name_(name) {}
 
-  // Returns true iff the test name of test_info matches name_.
+  // Returns true if the test name of test_info matches name_.
   bool operator()(const TestInfo * test_info) const {
     return test_info && test_info->name() == name_;
   }
@@ -2992,7 +2992,7 @@
 
 #endif  // GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MOBILE
 
-// Returns true iff Google Test should use colors in the output.
+// Returns true if Google Test should use colors in the output.
 bool ShouldUseColor(bool stdout_is_tty) {
   const char* const gtest_color = GTEST_FLAG(color).c_str();
 
@@ -3117,11 +3117,22 @@
   void OnTestIterationStart(const UnitTest& unit_test, int iteration) override;
   void OnEnvironmentsSetUpStart(const UnitTest& unit_test) override;
   void OnEnvironmentsSetUpEnd(const UnitTest& /*unit_test*/) override {}
-  void OnTestCaseStart(const TestSuite& test_suite) override;
+#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
+  void OnTestCaseStart(const TestCase& test_case) override;
+#else
+  void OnTestSuiteStart(const TestSuite& test_suite) override;
+#endif  // OnTestCaseStart
+
   void OnTestStart(const TestInfo& test_info) override;
+
   void OnTestPartResult(const TestPartResult& result) override;
   void OnTestEnd(const TestInfo& test_info) override;
-  void OnTestCaseEnd(const TestSuite& test_suite) override;
+#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
+  void OnTestCaseEnd(const TestCase& test_case) override;
+#else
+  void OnTestSuiteEnd(const TestSuite& test_suite) override;
+#endif  // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
+
   void OnEnvironmentsTearDownStart(const UnitTest& unit_test) override;
   void OnEnvironmentsTearDownEnd(const UnitTest& /*unit_test*/) override {}
   void OnTestIterationEnd(const UnitTest& unit_test, int iteration) override;
@@ -3175,7 +3186,22 @@
   fflush(stdout);
 }
 
-void PrettyUnitTestResultPrinter::OnTestCaseStart(const TestSuite& test_suite) {
+#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
+void PrettyUnitTestResultPrinter::OnTestCaseStart(const TestCase& test_case) {
+  const std::string counts =
+      FormatCountableNoun(test_case.test_to_run_count(), "test", "tests");
+  ColoredPrintf(COLOR_GREEN, "[----------] ");
+  printf("%s from %s", counts.c_str(), test_case.name());
+  if (test_case.type_param() == nullptr) {
+    printf("\n");
+  } else {
+    printf(", where %s = %s\n", kTypeParamLabel, test_case.type_param());
+  }
+  fflush(stdout);
+}
+#else
+void PrettyUnitTestResultPrinter::OnTestSuiteStart(
+    const TestSuite& test_suite) {
   const std::string counts =
       FormatCountableNoun(test_suite.test_to_run_count(), "test", "tests");
   ColoredPrintf(COLOR_GREEN, "[----------] ");
@@ -3187,6 +3213,7 @@
   }
   fflush(stdout);
 }
+#endif  // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
 
 void PrettyUnitTestResultPrinter::OnTestStart(const TestInfo& test_info) {
   ColoredPrintf(COLOR_GREEN,  "[ RUN      ] ");
@@ -3233,7 +3260,19 @@
   fflush(stdout);
 }
 
-void PrettyUnitTestResultPrinter::OnTestCaseEnd(const TestSuite& test_suite) {
+#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
+void PrettyUnitTestResultPrinter::OnTestCaseEnd(const TestCase& test_case) {
+  if (!GTEST_FLAG(print_time)) return;
+
+  const std::string counts =
+      FormatCountableNoun(test_case.test_to_run_count(), "test", "tests");
+  ColoredPrintf(COLOR_GREEN, "[----------] ");
+  printf("%s from %s (%s ms total)\n\n", counts.c_str(), test_case.name(),
+         internal::StreamableToString(test_case.elapsed_time()).c_str());
+  fflush(stdout);
+}
+#else
+void PrettyUnitTestResultPrinter::OnTestSuiteEnd(const TestSuite& test_suite) {
   if (!GTEST_FLAG(print_time)) return;
 
   const std::string counts =
@@ -3243,6 +3282,7 @@
          internal::StreamableToString(test_suite.elapsed_time()).c_str());
   fflush(stdout);
 }
+#endif  // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
 
 void PrettyUnitTestResultPrinter::OnEnvironmentsTearDownStart(
     const UnitTest& /*unit_test*/) {
@@ -3367,17 +3407,17 @@
   void OnEnvironmentsSetUpStart(const UnitTest& unit_test) override;
   void OnEnvironmentsSetUpEnd(const UnitTest& unit_test) override;
 //  Legacy API is deprecated but still available
-#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI
+#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
   void OnTestCaseStart(const TestSuite& parameter) override;
-#endif  //  GTEST_REMOVE_LEGACY_TEST_CASEAPI
+#endif  //  GTEST_REMOVE_LEGACY_TEST_CASEAPI_
   void OnTestSuiteStart(const TestSuite& parameter) override;
   void OnTestStart(const TestInfo& test_info) override;
   void OnTestPartResult(const TestPartResult& result) override;
   void OnTestEnd(const TestInfo& test_info) override;
 //  Legacy API is deprecated but still available
-#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI
-  void OnTestCaseEnd(const TestSuite& parameter) override;
-#endif  //  GTEST_REMOVE_LEGACY_TEST_CASEAPI
+#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
+  void OnTestCaseEnd(const TestCase& parameter) override;
+#endif  //  GTEST_REMOVE_LEGACY_TEST_CASEAPI_
   void OnTestSuiteEnd(const TestSuite& parameter) override;
   void OnEnvironmentsTearDownStart(const UnitTest& unit_test) override;
   void OnEnvironmentsTearDownEnd(const UnitTest& unit_test) override;
@@ -4669,10 +4709,10 @@
   return impl()->elapsed_time();
 }
 
-// Returns true iff the unit test passed (i.e. all test suites passed).
+// Returns true if the unit test passed (i.e. all test suites passed).
 bool UnitTest::Passed() const { return impl()->Passed(); }
 
-// Returns true iff the unit test failed (i.e. some test suite failed
+// Returns true if the unit test failed (i.e. some test suite failed
 // or something outside of all tests failed).
 bool UnitTest::Failed() const { return impl()->Failed(); }
 
@@ -5111,7 +5151,7 @@
   // Constructor.
   explicit TestSuiteNameIs(const std::string& name) : name_(name) {}
 
-  // Returns true iff the name of test_suite matches name_.
+  // Returns true if the name of test_suite matches name_.
   bool operator()(const TestSuite* test_suite) const {
     return test_suite != nullptr &&
            strcmp(test_suite->name(), name_.c_str()) == 0;
@@ -5182,7 +5222,7 @@
 // All other functions called from RunAllTests() may safely assume that
 // parameterized tests are ready to be counted and run.
 bool UnitTestImpl::RunAllTests() {
-  // True iff Google Test is initialized before RUN_ALL_TESTS() is called.
+  // True if Google Test is initialized before RUN_ALL_TESTS() is called.
   const bool gtest_is_initialized_before_run_all_tests = GTestIsInitialized();
 
   // Do not run any test if the --help flag was specified.
@@ -5198,7 +5238,7 @@
   // protocol.
   internal::WriteToShardStatusFileIfNeeded();
 
-  // True iff we are in a subprocess for running a thread-safe-style
+  // True if we are in a subprocess for running a thread-safe-style
   // death test.
   bool in_subprocess_for_death_test = false;
 
@@ -5231,7 +5271,7 @@
   random_seed_ = GTEST_FLAG(shuffle) ?
       GetRandomSeedFromFlag(GTEST_FLAG(random_seed)) : 0;
 
-  // True iff at least one test has failed.
+  // True if at least one test has failed.
   bool failed = false;
 
   TestEventListener* repeater = listeners()->repeater();
@@ -5429,7 +5469,7 @@
 }
 
 // Given the total number of shards, the shard index, and the test id,
-// returns true iff the test should be run on this shard. The test id is
+// returns true if the test should be run on this shard. The test id is
 // some arbitrary but unique non-negative integer assigned to each test
 // method. Assumes that 0 <= shard_index < total_shards.
 bool ShouldRunTestOnShard(int total_shards, int shard_index, int test_id) {
@@ -6003,7 +6043,7 @@
 void ParseGoogleTestFlagsOnly(int* argc, char** argv) {
   ParseGoogleTestFlagsOnlyImpl(argc, argv);
 
-  // Fix the value of *_NSGetArgc() on macOS, but iff
+  // Fix the value of *_NSGetArgc() on macOS, but if
   // *_NSGetArgv() == argv
   // Only applicable to char** version of argv
 #if GTEST_OS_MAC
diff --git a/googletest/test/googletest-death-test-test.cc b/googletest/test/googletest-death-test-test.cc
index 272b9c3..6c71fd8 100644
--- a/googletest/test/googletest-death-test-test.cc
+++ b/googletest/test/googletest-death-test-test.cc
@@ -139,7 +139,7 @@
       DieInside("MemberFunction");
   }
 
-  // True iff MemberFunction() should die.
+  // True if MemberFunction() should die.
   bool should_die_;
   const FilePath original_dir_;
 };
@@ -156,7 +156,7 @@
   }
 
  private:
-  // True iff MemberFunction() should die.
+  // True if MemberFunction() should die.
   bool should_die_;
 };
 
@@ -551,7 +551,7 @@
   }, "died but not with expected error");
 }
 
-// On exit, *aborted will be true iff the EXPECT_DEATH() statement
+// On exit, *aborted will be true if the EXPECT_DEATH() statement
 // aborted the function.
 void ExpectDeathTestHelper(bool* aborted) {
   *aborted = true;
diff --git a/googletest/test/googletest-listener-test.cc b/googletest/test/googletest-listener-test.cc
index f50faaf..10457af 100644
--- a/googletest/test/googletest-listener-test.cc
+++ b/googletest/test/googletest-listener-test.cc
@@ -35,6 +35,7 @@
 #include <vector>
 
 #include "gtest/gtest.h"
+#include "gtest/internal/custom/gtest.h"
 
 using ::testing::AddGlobalTestEnvironment;
 using ::testing::Environment;
@@ -76,10 +77,11 @@
   void OnEnvironmentsSetUpEnd(const UnitTest& /*unit_test*/) override {
     g_events->push_back(GetFullMethodName("OnEnvironmentsSetUpEnd"));
   }
-
+#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
   void OnTestCaseStart(const TestCase& /*test_case*/) override {
     g_events->push_back(GetFullMethodName("OnTestCaseStart"));
   }
+#endif  // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
 
   void OnTestStart(const TestInfo& /*test_info*/) override {
     g_events->push_back(GetFullMethodName("OnTestStart"));
@@ -93,9 +95,11 @@
     g_events->push_back(GetFullMethodName("OnTestEnd"));
   }
 
+#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
   void OnTestCaseEnd(const TestCase& /*test_case*/) override {
     g_events->push_back(GetFullMethodName("OnTestCaseEnd"));
   }
+#endif  // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
 
   void OnEnvironmentsTearDownStart(const UnitTest& /*unit_test*/) override {
     g_events->push_back(GetFullMethodName("OnEnvironmentsTearDownStart"));
@@ -283,6 +287,9 @@
   ::testing::GTEST_FLAG(repeat) = 2;
   int ret_val = RUN_ALL_TESTS();
 
+#ifndef GTEST_REMOVE_LEGACY_TEST_CASEAPI_
+
+  // The deprecated OnTestSuiteStart/OnTestCaseStart events are included
   const char* const expected_events[] = {"1st.OnTestProgramStart",
                                          "2nd.OnTestProgramStart",
                                          "3rd.OnTestProgramStart",
@@ -393,6 +400,110 @@
                                          "3rd.OnTestProgramEnd",
                                          "2nd.OnTestProgramEnd",
                                          "1st.OnTestProgramEnd"};
+#else
+  const char* const expected_events[] = {"1st.OnTestProgramStart",
+                                         "2nd.OnTestProgramStart",
+                                         "3rd.OnTestProgramStart",
+                                         "1st.OnTestIterationStart(0)",
+                                         "2nd.OnTestIterationStart(0)",
+                                         "3rd.OnTestIterationStart(0)",
+                                         "1st.OnEnvironmentsSetUpStart",
+                                         "2nd.OnEnvironmentsSetUpStart",
+                                         "3rd.OnEnvironmentsSetUpStart",
+                                         "Environment::SetUp",
+                                         "3rd.OnEnvironmentsSetUpEnd",
+                                         "2nd.OnEnvironmentsSetUpEnd",
+                                         "1st.OnEnvironmentsSetUpEnd",
+                                         "3rd.OnTestSuiteStart",
+                                         "ListenerTest::SetUpTestSuite",
+                                         "1st.OnTestStart",
+                                         "2nd.OnTestStart",
+                                         "3rd.OnTestStart",
+                                         "ListenerTest::SetUp",
+                                         "ListenerTest::* Test Body",
+                                         "1st.OnTestPartResult",
+                                         "2nd.OnTestPartResult",
+                                         "3rd.OnTestPartResult",
+                                         "ListenerTest::TearDown",
+                                         "3rd.OnTestEnd",
+                                         "2nd.OnTestEnd",
+                                         "1st.OnTestEnd",
+                                         "1st.OnTestStart",
+                                         "2nd.OnTestStart",
+                                         "3rd.OnTestStart",
+                                         "ListenerTest::SetUp",
+                                         "ListenerTest::* Test Body",
+                                         "1st.OnTestPartResult",
+                                         "2nd.OnTestPartResult",
+                                         "3rd.OnTestPartResult",
+                                         "ListenerTest::TearDown",
+                                         "3rd.OnTestEnd",
+                                         "2nd.OnTestEnd",
+                                         "1st.OnTestEnd",
+                                         "ListenerTest::TearDownTestSuite",
+                                         "3rd.OnTestSuiteEnd",
+                                         "1st.OnEnvironmentsTearDownStart",
+                                         "2nd.OnEnvironmentsTearDownStart",
+                                         "3rd.OnEnvironmentsTearDownStart",
+                                         "Environment::TearDown",
+                                         "3rd.OnEnvironmentsTearDownEnd",
+                                         "2nd.OnEnvironmentsTearDownEnd",
+                                         "1st.OnEnvironmentsTearDownEnd",
+                                         "3rd.OnTestIterationEnd(0)",
+                                         "2nd.OnTestIterationEnd(0)",
+                                         "1st.OnTestIterationEnd(0)",
+                                         "1st.OnTestIterationStart(1)",
+                                         "2nd.OnTestIterationStart(1)",
+                                         "3rd.OnTestIterationStart(1)",
+                                         "1st.OnEnvironmentsSetUpStart",
+                                         "2nd.OnEnvironmentsSetUpStart",
+                                         "3rd.OnEnvironmentsSetUpStart",
+                                         "Environment::SetUp",
+                                         "3rd.OnEnvironmentsSetUpEnd",
+                                         "2nd.OnEnvironmentsSetUpEnd",
+                                         "1st.OnEnvironmentsSetUpEnd",
+                                         "3rd.OnTestSuiteStart",
+                                         "ListenerTest::SetUpTestSuite",
+                                         "1st.OnTestStart",
+                                         "2nd.OnTestStart",
+                                         "3rd.OnTestStart",
+                                         "ListenerTest::SetUp",
+                                         "ListenerTest::* Test Body",
+                                         "1st.OnTestPartResult",
+                                         "2nd.OnTestPartResult",
+                                         "3rd.OnTestPartResult",
+                                         "ListenerTest::TearDown",
+                                         "3rd.OnTestEnd",
+                                         "2nd.OnTestEnd",
+                                         "1st.OnTestEnd",
+                                         "1st.OnTestStart",
+                                         "2nd.OnTestStart",
+                                         "3rd.OnTestStart",
+                                         "ListenerTest::SetUp",
+                                         "ListenerTest::* Test Body",
+                                         "1st.OnTestPartResult",
+                                         "2nd.OnTestPartResult",
+                                         "3rd.OnTestPartResult",
+                                         "ListenerTest::TearDown",
+                                         "3rd.OnTestEnd",
+                                         "2nd.OnTestEnd",
+                                         "1st.OnTestEnd",
+                                         "ListenerTest::TearDownTestSuite",
+                                         "3rd.OnTestSuiteEnd",
+                                         "1st.OnEnvironmentsTearDownStart",
+                                         "2nd.OnEnvironmentsTearDownStart",
+                                         "3rd.OnEnvironmentsTearDownStart",
+                                         "Environment::TearDown",
+                                         "3rd.OnEnvironmentsTearDownEnd",
+                                         "2nd.OnEnvironmentsTearDownEnd",
+                                         "1st.OnEnvironmentsTearDownEnd",
+                                         "3rd.OnTestIterationEnd(1)",
+                                         "2nd.OnTestIterationEnd(1)",
+                                         "1st.OnTestIterationEnd(1)",
+                                         "3rd.OnTestProgramEnd",
+                                         "2nd.OnTestProgramEnd",
+                                         "1st.OnTestProgramEnd"};
+#endif  // GTEST_REMOVE_LEGACY_TEST_CASEAPI_
 
   VerifyResults(events,
                 expected_events,
diff --git a/googletest/test/googletest-throw-on-failure-test.py b/googletest/test/googletest-throw-on-failure-test.py
index 7e4b158..a38cd33 100755
--- a/googletest/test/googletest-throw-on-failure-test.py
+++ b/googletest/test/googletest-throw-on-failure-test.py
@@ -86,7 +86,7 @@
                         variable; None if the variable should be unset.
       flag_value:       value of the --gtest_break_on_failure flag;
                         None if the flag should not be present.
-      should_fail:      True iff the program is expected to fail.
+      should_fail:      True if the program is expected to fail.
     """
 
     SetEnvVar(THROW_ON_FAILURE, env_var_value)
diff --git a/googletest/test/gtest_environment_test.cc b/googletest/test/gtest_environment_test.cc
index fea542a..58908e6 100644
--- a/googletest/test/gtest_environment_test.cc
+++ b/googletest/test/gtest_environment_test.cc
@@ -116,7 +116,7 @@
   }
 }
 
-// Runs the tests.  Return true iff successful.
+// Runs the tests.  Return true if successful.
 //
 // The 'failure' parameter specifies the type of failure that should
 // be generated by the global set-up.
diff --git a/googletest/test/gtest_pred_impl_unittest.cc b/googletest/test/gtest_pred_impl_unittest.cc
index 049ef98..4d77896 100644
--- a/googletest/test/gtest_pred_impl_unittest.cc
+++ b/googletest/test/gtest_pred_impl_unittest.cc
@@ -144,10 +144,10 @@
     }
   }
 
-  // true iff the test function is expected to run to finish.
+  // true if the test function is expected to run to finish.
   static bool expected_to_finish_;
 
-  // true iff the test function did run to finish.
+  // true if the test function did run to finish.
   static bool finished_;
 
   static int n1_;
@@ -539,10 +539,10 @@
     }
   }
 
-  // true iff the test function is expected to run to finish.
+  // true if the test function is expected to run to finish.
   static bool expected_to_finish_;
 
-  // true iff the test function did run to finish.
+  // true if the test function did run to finish.
   static bool finished_;
 
   static int n1_;
@@ -976,10 +976,10 @@
     }
   }
 
-  // true iff the test function is expected to run to finish.
+  // true if the test function is expected to run to finish.
   static bool expected_to_finish_;
 
-  // true iff the test function did run to finish.
+  // true if the test function did run to finish.
   static bool finished_;
 
   static int n1_;
@@ -1455,10 +1455,10 @@
     }
   }
 
-  // true iff the test function is expected to run to finish.
+  // true if the test function is expected to run to finish.
   static bool expected_to_finish_;
 
-  // true iff the test function did run to finish.
+  // true if the test function did run to finish.
   static bool finished_;
 
   static int n1_;
@@ -1976,10 +1976,10 @@
     }
   }
 
-  // true iff the test function is expected to run to finish.
+  // true if the test function is expected to run to finish.
   static bool expected_to_finish_;
 
-  // true iff the test function did run to finish.
+  // true if the test function did run to finish.
   static bool finished_;
 
   static int n1_;
diff --git a/googletest/test/gtest_premature_exit_test.cc b/googletest/test/gtest_premature_exit_test.cc
index 0920a97..777a8bf 100644
--- a/googletest/test/gtest_premature_exit_test.cc
+++ b/googletest/test/gtest_premature_exit_test.cc
@@ -45,7 +45,7 @@
 
 class PrematureExitTest : public Test {
  public:
-  // Returns true iff the given file exists.
+  // Returns true if the given file exists.
   static bool FileExists(const char* filepath) {
     StatStruct stat;
     return Stat(filepath, &stat) == 0;
@@ -61,7 +61,7 @@
     }
   }
 
-  // Returns true iff the premature-exit file exists.
+  // Returns true if the premature-exit file exists.
   bool PrematureExitFileExists() const {
     return FileExists(premature_exit_file_path_);
   }
diff --git a/googletest/test/gtest_test_utils.py b/googletest/test/gtest_test_utils.py
index 9a4dcb8..abd56ec 100755
--- a/googletest/test/gtest_test_utils.py
+++ b/googletest/test/gtest_test_utils.py
@@ -215,10 +215,10 @@
     Returns:
       An object that represents outcome of the executed process. It has the
       following attributes:
-        terminated_by_signal   True iff the child process has been terminated
+        terminated_by_signal   True if the child process has been terminated
                                by a signal.
         signal                 Sygnal that terminated the child process.
-        exited                 True iff the child process exited normally.
+        exited                 True if the child process exited normally.
         exit_code              The code with which the child process exited.
         output                 Child process's stdout and stderr output
                                combined in a string.
diff --git a/googletest/test/gtest_unittest.cc b/googletest/test/gtest_unittest.cc
index d481056..2b00b70 100644
--- a/googletest/test/gtest_unittest.cc
+++ b/googletest/test/gtest_unittest.cc
@@ -2016,10 +2016,11 @@
 
 void ExpectNonFatalFailureRecordingPropertyWithReservedKeyForCurrentTestSuite(
     const char* key) {
-  const TestCase* test_case = UnitTest::GetInstance()->current_test_case();
-  ASSERT_TRUE(test_case != nullptr);
+  const testing::TestSuite* test_suite =
+      UnitTest::GetInstance()->current_test_suite();
+  ASSERT_TRUE(test_suite != nullptr);
   ExpectNonFatalFailureRecordingPropertyWithReservedKey(
-      test_case->ad_hoc_test_result(), key);
+      test_suite->ad_hoc_test_result(), key);
 }
 
 void ExpectNonFatalFailureRecordingPropertyWithReservedKeyOutsideOfTestSuite(
@@ -2049,8 +2050,10 @@
         "time");
 
     Test::RecordProperty("test_case_key_1", "1");
+
     const testing::TestSuite* test_suite =
-        UnitTest::GetInstance()->current_test_case();
+        UnitTest::GetInstance()->current_test_suite();
+
     ASSERT_TRUE(test_suite != nullptr);
 
     ASSERT_EQ(1, test_suite->ad_hoc_test_result().test_property_count());
@@ -2167,12 +2170,12 @@
 
 // First, some predicates and predicate-formatters needed by the tests.
 
-// Returns true iff the argument is an even number.
+// Returns true if the argument is an even number.
 bool IsEven(int n) {
   return (n % 2) == 0;
 }
 
-// A functor that returns true iff the argument is an even number.
+// A functor that returns true if the argument is an even number.
 struct IsEvenFunctor {
   bool operator()(int n) { return IsEven(n); }
 };
@@ -2216,12 +2219,12 @@
   }
 };
 
-// Returns true iff the sum of the arguments is an even number.
+// Returns true if the sum of the arguments is an even number.
 bool SumIsEven2(int n1, int n2) {
   return IsEven(n1 + n2);
 }
 
-// A functor that returns true iff the sum of the arguments is an even
+// A functor that returns true if the sum of the arguments is an even
 // number.
 struct SumIsEven3Functor {
   bool operator()(int n1, int n2, int n3) {