Andrew Brunner wrote:
Following Setup:
Ubuntu 8.10 x64
FPC 2.2.3 (latest and greatest)
Lazarus (Latest and greatest)
I'm seeing an anomaly with reading/writing to an Array[THandle] of Pointers.
TMyStruct=record
Index:integer;
end;
PMyStruct=^TMyStruct;
TMyList = Array[THandle] of PMyStruct;
If I declare a localized variable
procedure Test();
var
MyTest:TMyList;
hThread:THandle;
begin
hThread:=getCurrentThreadID;
if (MyTest[hThread])=nil then begin // <---- CRASH HERE EXTERNAL SIGBUS
end;
end;
This should not crash here. It should have been nil.
Any work being done in this area or should I report another bug?
I'm surprised it crashes there. A THandle is IIRC a Cardinal on unix, so
by defining a variable MyTest:TMyList, you allocate 4GB *
SizeOf(TMyStruct) = 16GB on your stack. Usually a process doens't have
that much space and I wonder if you wanted this.
(You may want to look at the lcl Maps unit)
Marc
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