Function xmlReaderNewMemory 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn xmlReaderNewMemory(
    reader: *mut XmlTextReader,
    buffer: *const c_char,
    size: c_int,
    URL: *const c_char,
    encoding: *const c_char,
    options: c_int,
) -> c_int

int xmlReaderNewMemory(xmlTextReaderPtr reader, const char *buffer, int size, const char *URL, const char *encoding, int options).