[jira] [Created] (ARROW-5036) [C++] Serialization tests resort to memcpy to check equality

["Francois Saint-Jacques (JIRA)" <ji...@apache.org>]

Francois Saint-Jacques created ARROW-5036:
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             Summary: [C++] Serialization tests resort to memcpy to check equality
                 Key: ARROW-5036
                 URL: https://issues.apache.org/jira/browse/ARROW-5036
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++ - Plasma
            Reporter: Francois Saint-Jacques
             Fix For: 0.14.0


{code:shell}
1: /tmp/arrow-0.13.0.Q4czW/apache-arrow-0.13.0/cpp/src/plasma/test/serialization_tests.cc:193: Failure
1: Expected equality of these values:
1:   memcmp(&plasma_objects[object_ids[0]], &plasma_objects_return[0], sizeof(PlasmaObject))
1:     Which is: 45
1:   0
1: [  FAILED  ] PlasmaSerialization.GetReply (0 ms)
{code}

The source of the problem is the random_plasma_object stack allocated object. As a fix, I propose that PlasmaObject implements the `operator==` method and drops the memcpy equality check.




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