Segmentation error at the end problem (148 line program listing)

[Charles Hixson]

Gide Nwawudu wrote:
> On Tue, 27 Jan 2009 22:48:33 -0800, Charles Hixson
> <charleshixsn at earthlink.net> wrote:
> 
>> Main routine:
>>
>> void	main()
>> {
>>    try
>>    {  BlockFile	bf;
>>       bf  =  new BlockFile ("test.bf", 4096);
>>       writefln ("before close");
>>       bf.close;
>>       bf  =  null;
>>       writefln ("after close");
>>       BlockFile	cf  =  new  BlockFile ("test.bf", 4096);
>>       writefln ("after second open");
>>    }
>>    catch (Exception e)
>>    {  writefln ("Caught Exception ", e);  }
>> }
>>
>> Results in:
>> Exiting BlockFile::this
>> before close
>> after close
>> Exiting BlockFile::this
>> after second open
>> Segmentation fault
>>
>> I could post all the code.  It's only 146 lines.  But perhaps this is 
>> enough?
> 
> I'm thinking it might be an issue with close and the dtor being called
> on the same object. If you add std.gc.fullCollect() after the bf =
> null. Does that make the code seg fault before 'after close' is
> written? 
> 
> Gide
I had to wriggle the code around a bit. (It's D2 not D1.)  However it 
didn't make any difference to do:
void	main()
{
	try
	{	BlockFile	bf;
		bf	=	new	BlockFile ("test.bf", 4096);
		writefln ("before close");
		bf.close;
		bf	=	null;
		GC.collect;
		writefln ("after close");
		BlockFile	cf	=	new	BlockFile ("test.bf", 4096);
		writefln ("after second open");
	}
	catch (Exception e)
	{	writefln ("Caught Exception ", e);	}
}

   -------------------
And the docs say that GC.collect does a full collect;

P.S.:  Attached is the full listing
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