Export of internal Abseil changes.

--
ba4dd47492748bd630462eb68b7959037fc6a11a by Abseil Team <absl-team@google.com>:

Work around nvcc 9.0 compiler bug for open-source Tensorflow build.

With the current implementation, when I (unintentionally and transitively)
include absl/types/optional.h in a CUDA compilation unit, I get the following
nvcc error message:
  INFO: From Compiling tensorflow/core/kernels/crop_and_resize_op_gpu.cu.cc:
  external/com_google_absl/absl/types/optional.h: In member function 'void absl::optional_internal::optional_data_dtor_base<T, <anonymous> >::destruct()':
  external/com_google_absl/absl/types/optional.h:185:50: error: '__T0' was not declared in this scope
         data_.~T();

I've also seen similar compilation failures online, for flat_hash_map:
https://devtalk.nvidia.com/default/topic/1042599/nvcc-preprocessor-bug-causes-compilation-failure/

The bug is always around unnamed template parameters. Therefore, the workaround is to make them named.

PiperOrigin-RevId: 219208288

--
dad2f40cb2e8d5017660985ef6fb57f3c3cdcc80 by CJ Johnson <johnsoncj@google.com>:

Adds internal macros for catching and throwing unknown exception types

PiperOrigin-RevId: 219207362

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0a9840328d2d86e8420b853435fdbf1f7a19d931 by Abseil Team <absl-team@google.com>:

Fix typo in mutex.h comments.

PiperOrigin-RevId: 219199397

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0d576dc7597564210bfdf91518075064756f0bf4 by Matt Calabrese <calabrese@google.com>:

Internal change.

PiperOrigin-RevId: 219185475

--
66be156095571959fb19a76da8ad0b53ec37658e by Abseil Team <absl-team@google.com>:

Fix alignment conformance for VS 2017 >= 15.8 (fix #193)

PiperOrigin-RevId: 219129894

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a6e1825a12587945f8194677ccfdcaba6f7aad1d by Abseil Team <absl-team@google.com>:

Reapply PR #173

PiperOrigin-RevId: 219129361

--
cf72ade4881b25acc6ccaea468f69793a0fdce32 by Abseil Team <absl-team@google.com>:

Update .gitignore

PiperOrigin-RevId: 219127495

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0537490c6348a2cb489abe15638928ac5aa6982a by Jon Cohen <cohenjon@google.com>:

Small refactor and reformat of error messages from the exception safety test framework.

PiperOrigin-RevId: 218927773

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4c556ca45fa25698ad12002a00c713aeceefab73 by CJ Johnson <johnsoncj@google.com>:

Updates the inlined vector swap tests to check for number of moves that took place if available

PiperOrigin-RevId: 218900777

--
dcbfda0021a1e6dfa9586986b1269c06ec394053 by Mark Barolak <mbar@google.com>:

Add parens around calls to std::numeric_limits<>::min and
std::numeric_limits<>::max to prevent compilation errors on Windows platforms
where min and max are defined as macros.

PiperOrigin-RevId: 218888700
GitOrigin-RevId: ba4dd47492748bd630462eb68b7959037fc6a11a
Change-Id: I0e393958eb8cb501b85f6114979f6d4d86ed996c

2 files changed, 31 insertions, 14 deletions

diff --git a/absl/base/internal/exception_safety_testing.h b/absl/base/internal/exception_safety_testing.h
index 429f5c2f1bb9..0ecc4177d2d5 100644
--- a/absl/base/internal/exception_safety_testing.h
+++ b/absl/base/internal/exception_safety_testing.h
@@ -127,10 +127,8 @@ class ConstructorTracker {
       void* address = it.first;
       TrackedAddress& tracked_address = it.second;
       if (tracked_address.is_alive) {
-        ADD_FAILURE() << "Object at address " << address
-                      << " with countdown of " << countdown_
-                      << " was not destroyed [" << tracked_address.description
-                      << "]";
+        ADD_FAILURE() << ErrorMessage(address, tracked_address.description,
+                                      countdown_, "Object was not destroyed.");
       }
     }
   }
@@ -141,11 +139,11 @@ class ConstructorTracker {
     TrackedAddress& tracked_address =
         current_tracker_instance_->address_map_[address];
     if (tracked_address.is_alive) {
-      ADD_FAILURE() << "Object at address " << address << " with countdown of "
-                    << current_tracker_instance_->countdown_
-                    << " was re-constructed. Previously: ["
-                    << tracked_address.description << "] Now: [" << description
-                    << "]";
+      ADD_FAILURE() << ErrorMessage(
+          address, tracked_address.description,
+          current_tracker_instance_->countdown_,
+          "Object was re-constructed. Current object was constructed by " +
+              description);
     }
     tracked_address = {true, std::move(description)};
   }
@@ -159,10 +157,9 @@ class ConstructorTracker {
 
     TrackedAddress& tracked_address = it->second;
     if (!tracked_address.is_alive) {
-      ADD_FAILURE() << "Object at address " << address << " with countdown of "
-                    << current_tracker_instance_->countdown_
-                    << " was re-destroyed or created prior to construction "
-                    << "tracking [" << tracked_address.description << "]";
+      ADD_FAILURE() << ErrorMessage(address, tracked_address.description,
+                                    current_tracker_instance_->countdown_,
+                                    "Object was re-destroyed.");
     }
     tracked_address.is_alive = false;
   }
@@ -172,6 +169,16 @@ class ConstructorTracker {
     return current_tracker_instance_ != nullptr;
   }
 
+  static std::string ErrorMessage(void* address, const std::string& address_description,
+                             int countdown, const std::string& error_description) {
+    return absl::Substitute(
+        "With coundtown at $0:\n"
+        "  $1\n"
+        "  Object originally constructed by $2\n"
+        "  Object address: $3\n",
+        countdown, error_description, address_description, address);
+  }
+
   std::unordered_map<void*, TrackedAddress> address_map_;
   int countdown_;
 
@@ -709,7 +716,7 @@ class ThrowingAllocator : private exceptions_internal::TrackedObject {
   }
 
   size_type max_size() const noexcept {
-    return std::numeric_limits<difference_type>::max() / sizeof(value_type);
+    return (std::numeric_limits<difference_type>::max)() / sizeof(value_type);
   }
 
   ThrowingAllocator select_on_container_copy_construction() noexcept(
diff --git a/absl/base/macros.h b/absl/base/macros.h
index ca3d5edb6536..9e7ab375eed8 100644
--- a/absl/base/macros.h
+++ b/absl/base/macros.h
@@ -199,4 +199,14 @@ enum LinkerInitialized {
                              : [] { assert(false && #expr); }())  // NOLINT
 #endif
 
+#ifdef ABSL_HAVE_EXCEPTIONS
+#define ABSL_INTERNAL_TRY try
+#define ABSL_INTERNAL_CATCH_ANY catch (...)
+#define ABSL_INTERNAL_RETHROW do { throw; } while (false)
+#else  // ABSL_HAVE_EXCEPTIONS
+#define ABSL_INTERNAL_TRY if (true)
+#define ABSL_INTERNAL_CATCH_ANY else if (false)
+#define ABSL_INTERNAL_RETHROW do {} while (false)
+#endif  // ABSL_HAVE_EXCEPTIONS
+
 #endif  // ABSL_BASE_MACROS_H_