Function xmlNewCharEncodingHandler 

#[unsafe(no_mangle)]
pub extern "C" fn xmlNewCharEncodingHandler(
    name: *const c_char,
    input: xmlCharEncodingInputFunc,
    output: xmlCharEncodingOutputFunc,
) -> *mut c_void

Create a new encoding handler (upstream encoding.h).

UPSTREAM-PARITY

xmlCharEncodingHandlerPtr xmlNewCharEncodingHandler(
    const char *name, xmlCharEncodingInputFunc input,
    xmlCharEncodingOutputFunc output);