[jira] [Updated] (THRIFT-4454) Large writes/reads may cause range check errors in debug mode

["Jens Geyer (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/THRIFT-4454?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jens Geyer updated THRIFT-4454:
-------------------------------
    Summary: Large writes/reads may cause range check errors in debug mode  (was: Large writes may cause range check errors in debug mode)

> Large writes/reads 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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