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Re: Record Problem
>My problem is that sometimes when I call "dispose-record", I get the error:
>"Can't operate on free block." As a possible solution to this, I tried:
You get this error when you try to free a block that is already free.
You are probably attempting to dispose of the same record twice.
>(with-dereferenced-handles ((r rect)) ;; "rect" is a record of type :rect
> (dispose-rect r :rect))
As far as I can tell, you are just thrashing random memory when you do
this. The default storage allocation for records is :pointer, not
:handle, so unless you are overriding the default storage type, what you
are doing is treating a pointer like a handle. If you have a lot of
memory, you may be getting lucky, and only overwriting blocks that you
never use (like the pretty-printer or someting).
- Record Problem
- From: paul@informatics.WUstl.EDU (Terrance Paul McCartney)