Fwd: SRFI-60 integer->list and list->integer

Gauche list->integer function does not check for negative numbers either:

gosh> (integer->list 0)
()
gosh> (integer->list -1)
()
gosh> (list->integer (integer->list -1))
0

---------- Forwarded message ----------
From: Aubrey Jaffer <agj <at> alum.mit.edu>
Date: 2012/1/10
Subject: Re: SRFI-60 integer->list and list->integer
To: Sascha Ziemann <ceving <at> gmail.com>

 | Date: Tue, 10 Jan 2012 15:56:14 +0100
 | From: Sascha Ziemann <ceving <at> gmail.com>
 |
 | Hello,
 |
 | I have a question about the integer->list function in SRFI-60.
 |
 | The function list->integer does not seem to be the reverse function
 | for integer->list:
 |
 | $ scm
 | > (list->integer (integer->list -1))
 | 0
 |
 | Is this the intended behavior?