Export of internal Abseil changes

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51e9291d9bc385082b4061fe760b236ba59c79c3 by Abseil Team <absl-team@google.com>:

Cast to uint64_t using braces instead of parentheses.

PiperOrigin-RevId: 372475909

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939fc409855da2639dcaf2d1d4971ca0e0568d03 by Martijn Vels <mvels@google.com>:

Expand # flat nodes into size detailed counters.

PiperOrigin-RevId: 372474608

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54b158c99b32f8a14821ce74fed0f9f836525ce7 by Martijn Vels <mvels@google.com>:

Make copies of sampled cords sampled as well

This applies to the following methods:
- Cord(const Cord&)
- operator=(const Cord&)
- Subcord(...)

PiperOrigin-RevId: 372468160

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876c2581ce008871464e8b471efbb967d150f83b by Andy Getzendanner <durandal@google.com>:

Document the type of an ABSL_FLAGS.OnUpdate() callback.

PiperOrigin-RevId: 372406390
GitOrigin-RevId: 51e9291d9bc385082b4061fe760b236ba59c79c3
Change-Id: Ifb75122cae56b66c28128aee90a63bbb28d93817

1 files changed, 10 insertions, 0 deletions

diff --git a/absl/strings/internal/cord_internal.h b/absl/strings/internal/cord_internal.h
index c7ae0104..813b3f35 100644
--- a/absl/strings/internal/cord_internal.h
+++ b/absl/strings/internal/cord_internal.h
@@ -366,6 +366,16 @@ class InlineData {
     return as_tree_.cordz_info != kNullCordzInfo;
   }
 
+  // Returns true if either of the provided instances hold a cordz_info value.
+  // This method is more efficient than the equivalent `data1.is_profiled() ||
+  // data2.is_profiled()`. Requires both arguments to hold a tree.
+  static bool is_either_profiled(const InlineData& data1,
+                                 const InlineData& data2) {
+    assert(data1.is_tree() && data2.is_tree());
+    return (data1.as_tree_.cordz_info | data2.as_tree_.cordz_info) !=
+           kNullCordzInfo;
+  }
+
   // Returns the cordz_info sampling instance for this instance, or nullptr
   // if the current instance is not sampled and does not have CordzInfo data.
   // Requires the current instance to hold a tree value.