Googletest export

Merge 7f4f58da20e1066a888d3e4bcbef541db798a605 into 90a443f9c2437ca8a682a1ac625eba64e1d74a8a

Closes #2395

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/googletest/pull/2395 from kuzkry:custom-type-traits-remove_reference 7f4f58da20e1066a888d3e4bcbef541db798a605
PiperOrigin-RevId: 266189044

2 files changed, 2 insertions, 41 deletions

diff --git a/googletest/include/gtest/internal/gtest-internal.h b/googletest/include/gtest/internal/gtest-internal.h
index 37daf21..3a98ce4 100644
--- a/googletest/include/gtest/internal/gtest-internal.h
+++ b/googletest/include/gtest/internal/gtest-internal.h
@@ -856,30 +856,16 @@ template <typename T>
 struct CompileAssertTypesEqual<T, T> {
 };
 
-// Removes the reference from a type if it is a reference type,
-// otherwise leaves it unchanged.  This is the same as
-// tr1::remove_reference, which is not widely available yet.
-template <typename T>
-struct RemoveReference { typedef T type; };  // NOLINT
-template <typename T>
-struct RemoveReference<T&> { typedef T type; };  // NOLINT
-
-// A handy wrapper around RemoveReference that works when the argument
-// T depends on template parameters.
-#define GTEST_REMOVE_REFERENCE_(T) \
-    typename ::testing::internal::RemoveReference<T>::type
-
 // Turns const U&, U&, const U, and U all into U.
 #define GTEST_REMOVE_REFERENCE_AND_CONST_(T) \
-  typename std::remove_const<GTEST_REMOVE_REFERENCE_(T)>::type
+  typename std::remove_const<typename std::remove_reference<T>::type>::type
 
 // IsAProtocolMessage<T>::value is a compile-time bool constant that's
 // true if T is type proto2::Message or a subclass of it.
 template <typename T>
 struct IsAProtocolMessage
     : public bool_constant<
-  std::is_convertible<const T*, const ::proto2::Message*>::value> {
-};
+          std::is_convertible<const T*, const ::proto2::Message*>::value> {};
 
 // When the compiler sees expression IsContainerTest<C>(0), if C is an
 // STL-style container class, the first overload of IsContainerTest
diff --git a/googletest/test/gtest_unittest.cc b/googletest/test/gtest_unittest.cc
index 5020d73..12c5a87 100644
--- a/googletest/test/gtest_unittest.cc
+++ b/googletest/test/gtest_unittest.cc
@@ -262,7 +262,6 @@ using testing::internal::OsStackTraceGetterInterface;
 using testing::internal::ParseInt32Flag;
 using testing::internal::RelationToSourceCopy;
 using testing::internal::RelationToSourceReference;
-using testing::internal::RemoveReference;
 using testing::internal::ShouldRunTestOnShard;
 using testing::internal::ShouldShard;
 using testing::internal::ShouldUseColor;
@@ -7110,30 +7109,6 @@ TEST(CompileAssertTypesEqual, CompilesWhenTypesAreEqual) {
   CompileAssertTypesEqual<int*, int*>();
 }
 
-// Tests that RemoveReference does not affect non-reference types.
-TEST(RemoveReferenceTest, DoesNotAffectNonReferenceType) {
-  CompileAssertTypesEqual<int, RemoveReference<int>::type>();
-  CompileAssertTypesEqual<const char, RemoveReference<const char>::type>();
-}
-
-// Tests that RemoveReference removes reference from reference types.
-TEST(RemoveReferenceTest, RemovesReference) {
-  CompileAssertTypesEqual<int, RemoveReference<int&>::type>();
-  CompileAssertTypesEqual<const char, RemoveReference<const char&>::type>();
-}
-
-// Tests GTEST_REMOVE_REFERENCE_.
-
-template <typename T1, typename T2>
-void TestGTestRemoveReference() {
-  CompileAssertTypesEqual<T1, GTEST_REMOVE_REFERENCE_(T2)>();
-}
-
-TEST(RemoveReferenceTest, MacroVersion) {
-  TestGTestRemoveReference<int, int>();
-  TestGTestRemoveReference<const char, const char&>();
-}
-
 // Tests GTEST_REMOVE_REFERENCE_AND_CONST_.
 
 template <typename T1, typename T2>