size as uint32

Author: scotthart

google/cloud/storage/internal/async/object_descriptor_reader_tracing.cc

@@ -57,7 +57,7 @@ class ObjectDescriptorReaderTracing : public ObjectDescriptorReader {
                 "gl-cpp.read-range",
                 {{/*sc::kRpcMessageType=*/"rpc.message.type", "RECEIVED"},
                  {sc::kThreadId, internal::CurrentThreadId()},
-                 {"message.size", std::to_string(payload.size())}});
+                 {"message.size", static_cast<std::uint32_t>(payload.size())}});
           } else {
             span->AddEvent(
                 "gl-cpp.read-range",

google/cloud/storage/internal/async/object_descriptor_reader_tracing_test.cc

@@ -65,7 +65,7 @@ TEST(ObjectDescriptorReaderTracing, Read) {
                          SpanHasEvents(AllOf(
                              EventNamed("gl-cpp.read-range"),
                              SpanEventAttributesAre(
-                                 OTelAttribute<std::size_t>("message.size", 10),
+                                 OTelAttribute<std::uint32_t>("message.size", 10),
                                  OTelAttribute<std::string>(sc::kThreadId, _),
                                  OTelAttribute<std::string>("rpc.message.type",
                                                             "RECEIVED")))))));