Function xmlHashAddEntry3 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn xmlHashAddEntry3(
    table: *mut c_void,
    name: *const xmlChar,
    name2: *const xmlChar,
    name3: *const xmlChar,
    userdata: *mut c_void,
) -> c_int

Add a 3-key entry.

UPSTREAM-PARITY

int xmlHashAddEntry3(xmlHashTablePtr table, const xmlChar *name,
                     const xmlChar *name2, const xmlChar *name3, void *userdata);