Function leptonica_sys::freadHeaderPnm

pub unsafe extern "C" fn freadHeaderPnm(
    fp: *mut FILE,
    pw: *mut l_int32,
    ph: *mut l_int32,
    pd: *mut l_int32,
    ptype: *mut l_int32,
    pbps: *mut l_int32,
    pspp: *mut l_int32
) -> l_ok