Function libxml::bindings::xmlCtxtReadIO

pub unsafe extern "C" fn xmlCtxtReadIO(
    ctxt: xmlParserCtxtPtr,
    ioread: xmlInputReadCallback,
    ioclose: xmlInputCloseCallback,
    ioctx: *mut c_void,
    URL: *const c_char,
    encoding: *const c_char,
    options: c_int
) -> xmlDocPtr