Function vips_sys::im_wraptwo

pub unsafe extern "C" fn im_wraptwo(
    in1: *mut VipsImage, 
    in2: *mut VipsImage, 
    out: *mut VipsImage, 
    fn_: im_wraptwo_fn, 
    a: *mut c_void, 
    b: *mut c_void
) -> c_int