[Sbcl-devel] bug with ppc sbcl and iterate

[Robert S. <rd...@me...>]

Hi everyone,

Has anyone had any luck using the iterate package with sbcl on darwin?

With iterate 1.0.2 and sbcl 0.8.7.52 (and also 0.8.5.something) I get a
"TYPE-ERROR in thread 914: The value 2 is not of type LIST."
when I
"""
* (in-package :iterate)
#<PACKAGE "ITERATE">
* (iter (for i from 0 below 10)
	  (collect (* 4 i)))
"""

This code works in openmcl and in sbcl on x86.

Poking around a little it looks like something screwy is going on with 
the multiple-value-bind in the function walk-list-nconcing in 
iterate.lisp.  Something which should be nil gets set to something 
random (in this case 2).

I haven't been able to come up with a self-contained example of the 
problem, but I was wondering if this was a known bug with sbcl on ppc.  
Of course, it could also be the result of some non-ansi-ism somewhere 
in iterate.

Thanks,
Robbie