Function leptonica_sys::pixWindowedVarianceOnLine

pub unsafe extern "C" fn pixWindowedVarianceOnLine(
    pixs: *mut PIX, 
    dir: l_int32, 
    loc: l_int32, 
    c1: l_int32, 
    c2: l_int32, 
    size: l_int32, 
    pnad: *mut *mut NUMA
) -> l_ok