- int PL_compare(term_t
t1, term_t t2)
- Compares two terms using the standard order of terms and returns -1, 0
or 1. See also compare/3.
- bool PL_same_compound(term_t
t1, term_t t2)
- Yields
TRUE if t1 and t2 refer to
physically the same compound term and FALSE otherwise.