Function r_core::r_diff_buffers_distance

pub unsafe extern "C" fn r_diff_buffers_distance(
    d: *mut RDiff, 
    a: *const c_uchar, 
    la: c_uint, 
    b: *const c_uchar, 
    lb: c_uint, 
    distance: *mut c_uint, 
    similarity: *mut f64
) -> bool