Function leptonica_sys::grayInterHistogramStats

pub unsafe extern "C" fn grayInterHistogramStats(
    naa: *mut NUMAA, 
    wc: l_int32, 
    pnam: *mut *mut NUMA, 
    pnams: *mut *mut NUMA, 
    pnav: *mut *mut NUMA, 
    pnarv: *mut *mut NUMA
) -> l_ok