On 2006-jun-07, at 00:58, Jack Unrue wrote:
The changes in 060215's version of cffi-lispworks.lisp are
that the following have been added:

defun convert-foreign-typed-aref-type
defun pointer-and-index
compiler macros for %mem-ref and %mem-set

Bingo.


Hopefully this code spelunking can help track down what's
happened :-)

Yeah, those compiler macros were calling fli:foreign-typed-aref incorrectly. I remember James and I discussing this optimization and we were both tricked by the documentation that suggests this function takes an array index, not an offset in bytes.

I've pushed a fix to the darcs repository. Thank you for the report and test case. And thank you and Luke for tracking the down the changes that introduced this bug. :-)

--
Luís Oliveira
http://student.dei.uc.pt/~lmoliv/


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