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From "Jens Geyer (JIRA)" <j...@apache.org>
Subject [jira] [Created] (THRIFT-4454) Large writes may cause range check errors in debug mode
Date Fri, 12 Jan 2018 20:34:00 GMT
Jens Geyer created THRIFT-4454:
----------------------------------

             Summary: Large writes may cause range check errors in debug mode
                 Key: THRIFT-4454
                 URL: https://issues.apache.org/jira/browse/THRIFT-4454
             Project: Thrift
          Issue Type: Bug
          Components: Delphi - Library
    Affects Versions: 0.11.0
            Reporter: Jens Geyer
            Assignee: Jens Geyer
             Fix For: 0.12.0


The pipes code contains a few casts using the {{PByteArray}} pointer type. The underlying
array {{TByteArray}} is defined as {code}
type TByteArray = array [0..32767] of Byte;
{code}

With range checks enabled, any access to indices > 32767, even correct ones, result in
an range check exception. It may be worth noting that the code is otherwise entirely correct
(i.e. no buffer overruns). It is really only the type cast that introduces the failing constraint.




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