[plt-scheme] FFI and pointer manipulations

From: Matthew Flatt (mflatt at cs.utah.edu)
Date: Sun Feb 11 19:07:53 EST 2007

At Sun, 11 Feb 2007 18:44:09 -0500, "Geoffrey S. Knauth" wrote:
> On Feb 11, 2007, at 17:02, Matthew Flatt wrote:
> > C programmers have to know that all Scheme objects move.
> What is the period of time that a C program can be assured that a  
> Scheme object won't move?  Zero?  I can see that FFI is great, but if  
> a Scheme object could move during an FFI call...

This is described in the "Inside MzScheme" documentation:



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