[Openmcl-devel] defloadvar and def-ccl-pointers

Alan Ruttenberg alanr-l at mumble.net
Fri Nov 26 19:06:59 PST 2004

When you are going to do a save-application and you need to 
reinitialize a variable when the lisp image starts again. For instance 
you might open a stream to a log file in your defvar. When you save a 
lisp image and exit, that stream gets closed. When the lisp application 
you saved starts again, if you try to write to the closed stream, you 
get an error.  Same deal if you allocate some non-lisp memory structure 
for use with a system call. In these cases use defloadvar and the 
variable initialization forms are run again when the lisp image 


On Nov 26, 2004, at 3:16 PM, alex crain wrote:

> What is the purpose of DEF-CCL-POINTERS?
> I can get a handle on what it does, but it's not clear why.
> Put another way, when and why should I use DEFLOADVAR instead of 
> :alex
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