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Add a matcher `testing::ReturnRoundRobin` which, on each call, returns the next element in the sequence, restarting at the beginning once it has reached the end.

PiperOrigin-RevId: 276312136

Fixed issue: 2471

Merge 4c9ef099b29d2c840c04643cd9662fd7be712f7b into 565f1b84

Closes #2403

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/googletest/pull/2403 from IYP-Programer-Yeah:remove-compile-assert-type-equal 4c9ef099b29d2c840c04643cd9662fd7be712f7b
PiperOrigin-RevId: 268681883

Due to confusion arisen from "iff" standing for "if and only if",
this commit uses the latter.

Remove special case for protocol buffers. It is no longer needed.

PiperOrigin-RevId: 246550795

Remove support for "global" ::string and ::wstring types.
This support existed for legacy codebases that existed from before namespaces
where a thing. It is no longer necessary.

PiperOrigin-RevId: 241335738

Remove mention of unused type ProtocolMessage.

PiperOrigin-RevId: 239242706

Refactor the `Invoke` and `InvokeWithoutArgs` actions:
 - Replace pump'd classes and functions with templates.
 - Make the polymorphic actions be polymorphic functors instead.
 - Fix Invoke(Callback*) to work with subclasses of the callbacks, instead of trying to diagnose that in gmock_doctor.

PiperOrigin-RevId: 229604112

Deduplicate testing::ReferenceWrapper with std::reference_wrapper.
Minor cleanups in matchers_test.

PiperOrigin-RevId: 229022872

Remove the #ifs for old, unsupported and buggy compilers:
* old versions of GCC & MSVC
* Symbian

PiperOrigin-RevId: 227116941

Use std::function to implement type erasure in Action, wrapping the legacy
ActionInterface if necessary.

This makes functors / std::function the primary way to implement Action; the
existing ActionInterface implementations are handled through ActionAdaptor.
The existing actions are not (yet) migrated though; they'll pay the cost of one
additional indirection - but that should be negligible.

PiperOrigin-RevId: 226126137

Unifdef c++11-related macros from googletest now that it requires C++11.

PiperOrigin-RevId: 225905601

Replace pump'd code for DoAll with variadic templates.

PiperOrigin-RevId: 225584656

Applied fixes for ClangTidy modernize-use-override and modernize-use-using.

PiperOrigin-RevId: 223800219

Silence C4100 msvc warning

PiperOrigin-RevId: 222242329

Upgrade WithArgs family of actions to C++11.

PiperOrigin-RevId: 221671690

Remove linked_ptr and use std::shared_ptr instead

PiperOrigin-RevId: 219129336

Remove linked_ptr and use std::shared_ptr instead

PiperOrigin-RevId: 218618184

Remove linked_ptr and use std::shared_ptr instead

PiperOrigin-RevId: 218571466

C++11 code cleanup.

PiperOrigin-RevId: 217364243

Remove all mention of TR1 tuple and our own implementation of tuple.

PiperOrigin-RevId: 216395043

Now that googletest has moved to C++11, it should no longer
use NULL or 0 for the null pointer. This patch converts all
such usages to nullptr using clang-tidy.

This prevents LLVM from issuing -Wzero-as-null-pointer-constant
warnings.

PiperOrigin-RevId: 215814400

Comments changes, no functionality changes

Formatting changes for automatic code management

This upstreams a Google-internal change (141765019).

This guards use of <type_traits> and its features with
GTEST_HAS_STD_TYPE_TRAITS_, and std::function with
GTEST_HAS_STD_FUNCTION_.

constructible return a default-constructed value by default.

Pull in gtest 696.