Function vips_sys::im_stdif

pub unsafe extern "C" fn im_stdif(
    in_: *mut VipsImage, 
    out: *mut VipsImage, 
    a: f64, 
    m0: f64, 
    b: f64, 
    s0: f64, 
    xwin: c_int, 
    ywin: c_int
) -> c_int