Function guile_sys::scm_bitvector_elements

pub unsafe extern "C" fn scm_bitvector_elements(
    vec: SCM, 
    h: *mut scm_t_array_handle, 
    offp: *mut size_t, 
    lenp: *mut size_t, 
    incp: *mut ssize_t
) -> *const scm_t_uint32