gprolog 1.0.0

Version of implementation GNU Prolog of programming language Prolog

Official release of GNU Prolog, released on April 16th, 1999.



  • fix bug in bc_supp.c to avoid aux pred name for unknown predicate
  • fix bug in pl2wam (:- set_prolog_flag(singleton_warning,off))
  • fix bug (type_list instead of instantiation error for Options)
  • fix bug setof (not sorted when comes down to findall)

New features and improvements:

  • rewrite DCG in C (unification optimized, avoid ill-balanced conjunctions)
  • current_prolog/1 conforms to ISO thanks to strict_iso flag