[M3devel] Potential bug in RTAllocator.Clone, was: Fwd: Auto-discard notification

[Olaf Wagner]

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Date: Fri, 27 Aug 2010 15:39:23 +0100
Subject: Potential bug in RTAllocator.Clone
From: Raja Mukherji <rajamukherji at gmail.com>
To: m3devel at elegosoft.com
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Hi, this is my first post to the Modula-3 mailing list...

While using RTAllocator.Clone in a project, I kept getting errors
related to the type of the returned object. The debugger m3gdb
returned a TYPECODE of 0.
I think the cause is line 84 in RTAllocator.m3 which currently reads

res := AllocTraced(dataSize, def.dataAlignment, thread^);

which doesn't seem to set the header of the clone. Changing it to

res := LOOPHOLE(GetTraced(def), ADDRESS);

seems to fix the problems, but since I'm not that familiar with the
object representation I thought I should ask here first.

Thanks,
Raja

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