with guile version 2.1.0.89-c5ea7 on an x86_64 GNU/Linux system and the following code (use-modules (srfi srfi-4) (rnrs bytevectors)) (define a (make-f32vector 2 0)) (define b (bytevector-copy a)) (write (list a b))
"b" turns out to be an f32vector with length 8, 4 times the length of "a". i expected the result to have the same length as the argument see also http://lists.gnu.org/archive/html/guile-devel/2014-10/msg00064.html