/usr/share/Yap/pl/strict_iso.yap is in yap 6.2.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 | '$iso_check_goal'(V,G) :-
var(V), !,
'$do_error'(instantiation_error,call(G)).
'$iso_check_goal'(V,G) :-
number(V), !,
'$do_error'(type_error(callable,V),G).
'$iso_check_goal'(_:G,G0) :- !,
'$iso_check_goal'(G,G0).
'$iso_check_goal'((G1,G2),G0) :- !,
'$iso_check_a_goal'(G1,(G1,G2),G0),
'$iso_check_a_goal'(G2,(G1,G2),G0).
'$iso_check_goal'((G1;G2),G0) :- !,
'$iso_check_a_goal'(G1,(G1;G2),G0),
'$iso_check_a_goal'(G2,(G1;G2),G0).
'$iso_check_goal'((G1->G2),G0) :- !,
'$iso_check_a_goal'(G1,(G1->G2),G0),
'$iso_check_a_goal'(G2,(G1->G2),G0).
'$iso_check_goal'(!,_) :- !.
'$iso_check_goal'((G1|G2),G0) :-
'$access_yap_flags'(9,1), !,
'$do_error'(domain_error(builtin_procedure,(G1|G2)), call(G0)).
'$iso_check_goal'((G1|G2),G0) :- !,
'$iso_check_a_goal'(G1,(G1|G2),G0),
'$iso_check_a_goal'(G2,(G1|G2),G0).
'$iso_check_goal'(G,G0) :-
'$access_yap_flags'(9,1),
'$system_predicate'(G,0),
(
'$iso_builtin'(G)
->
true
;
'$do_error'(domain_error(builtin_procedure,G), call(G0))
).
'$iso_check_goal'(_,_).
'$iso_check_a_goal'(V,_,G) :-
var(V), !,
'$do_error'(instantiation_error,call(G)).
'$iso_check_a_goal'(V,E,G) :-
number(V), !,
'$do_error'(type_error(callable,E),call(G)).
'$iso_check_a_goal'(_:G,E,G0) :- !,
'$iso_check_a_goal'(G,E,G0).
'$iso_check_a_goal'((G1,G2),E,G0) :- !,
'$iso_check_a_goal'(G1,E,G0),
'$iso_check_a_goal'(G2,E,G0).
'$iso_check_a_goal'((G1;G2),E,G0) :- !,
'$iso_check_a_goal'(G1,E,G0),
'$iso_check_a_goal'(G2,E,G0).
'$iso_check_a_goal'((G1->G2),E,G0) :- !,
'$iso_check_a_goal'(G1,E,G0),
'$iso_check_a_goal'(G2,E,G0).
'$iso_check_a_goal'(!,_,_) :- !.
'$iso_check_a_goal'((_|_),E,G0) :-
'$access_yap_flags'(9,1), !,
'$do_error'(domain_error(builtin_procedure,E), call(G0)).
'$iso_check_a_goal'((_|_),_,_) :- !.
'$iso_check_a_goal'(G,_,G0) :-
'$access_yap_flags'(9,1),
'$system_predicate'(G,0),
(
'$iso_builtin'(G)
->
true
;
'$do_error'(domain_error(builtin_procedure,G), call(G0))
).
'$iso_check_a_goal'(_,_,_).
'$check_iso_strict_clause'((_:-B)) :- !,
'$check_iso_strict_body'(B).
'$check_iso_strict_clause'(_).
'$check_iso_strict_body'((B1,B2)) :- !,
'$check_iso_strict_body'(B1),
'$check_iso_strict_body'(B2).
'$check_iso_strict_body'((B1;B2)) :- !,
'$check_iso_strict_body'(B1),
'$check_iso_strict_body'(B2).
'$check_iso_strict_body'((B1->B2)) :- !,
'$check_iso_strict_body'(B1),
'$check_iso_strict_body'(B2).
'$check_iso_strict_body'(B) :-
'$check_iso_strict_goal'(B).
'$check_iso_strict_goal'(G) :-
'$system_predicate'(G,0), !,
'$check_iso_system_goal'(G).
'$check_iso_strict_goal'(_).
'$check_iso_system_goal'(G) :-
'$iso_builtin'(G), !.
'$check_iso_system_goal'(G) :-
'$do_error'(domain_error(builtin_procedure,G), G).
'$iso_builtin'(abolish(_)).
'$iso_builtin'(arg(_,_,_)).
'$iso_builtin'(_=:=_).
'$iso_builtin'(_=\=_).
'$iso_builtin'(_>_).
'$iso_builtin'(_>=_).
'$iso_builtin'(_<_).
'$iso_builtin'(_=<_).
'$iso_builtin'(asserta(_)).
'$iso_builtin'(assertz(_)).
'$iso_builtin'(at_end_of_stream).
'$iso_builtin'(at_end_of_stream(_)).
'$iso_builtin'(atom(_)).
'$iso_builtin'(atom_chars(_,_)).
'$iso_builtin'(atom_codes(_,_)).
'$iso_builtin'(atom_concat(_,_,_)).
'$iso_builtin'(atom_length(_,_)).
'$iso_builtin'(atomic(_)).
'$iso_builtin'(bagof(_,_,_)).
'$iso_builtin'(call(_)).
'$iso_builtin'(catch(_,_,_)).
'$iso_builtin'(char_code(_,_)).
'$iso_builtin'(char_conversion(_,_)).
'$iso_builtin'(clause(_,_)).
'$iso_builtin'(close(_)).
'$iso_builtin'(close(_,_)).
'$iso_builtin'(compound(_)).
'$iso_builtin'((_,_)).
'$iso_builtin'(copy_term(_,_)).
'$iso_builtin'(current_char_conversion(_,_)).
'$iso_builtin'(current_input(_)).
'$iso_builtin'(current_op(_,_,_)).
'$iso_builtin'(current_output(_)).
'$iso_builtin'(current_predicate(_)).
'$iso_builtin'(current_prolog_flag(_,_)).
'$iso_builtin'(!).
'$iso_builtin'((_;_)).
'$iso_builtin'(fail).
'$iso_builtin'(findall(_,_,_)).
'$iso_builtin'(float(_)).
'$iso_builtin'(abort).
'$iso_builtin'(flush_output).
'$iso_builtin'(flush_output(_)).
'$iso_builtin'(functor(_,_,_)).
'$iso_builtin'(get_byte(_)).
'$iso_builtin'(get_byte(_,_)).
'$iso_builtin'(get_char(_)).
'$iso_builtin'(get_char(_,_)).
'$iso_builtin'(get_code(_)).
'$iso_builtin'(get_code(_,_)).
'$iso_builtin'(halt).
'$iso_builtin'(halt(_)).
'$iso_builtin'((_->_)).
'$iso_builtin'(integer(_)).
'$iso_builtin'(_ is _).
'$iso_builtin'(nl).
'$iso_builtin'(nl(_)).
'$iso_builtin'(nonvar(_)).
'$iso_builtin'(\+(_)).
'$iso_builtin'(number(_)).
'$iso_builtin'(number_chars(_,_)).
'$iso_builtin'(number_codes(_,_)).
'$iso_builtin'(once(_)).
'$iso_builtin'(op(_,_,_)).
'$iso_builtin'(open(_,_,_)).
'$iso_builtin'(open(_,_,_,_)).
'$iso_builtin'(peek_byte(_)).
'$iso_builtin'(peek_byte(_,_)).
'$iso_builtin'(peek_char(_)).
'$iso_builtin'(peek_char(_,_)).
'$iso_builtin'(peek_code(_)).
'$iso_builtin'(peek_code(_,_)).
'$iso_builtin'(put_byte(_)).
'$iso_builtin'(put_byte(_,_)).
'$iso_builtin'(put_char(_)).
'$iso_builtin'(put_char(_,_)).
'$iso_builtin'(put_code(_)).
'$iso_builtin'(put_code(_,_)).
'$iso_builtin'(read(_)).
'$iso_builtin'(read(_,_)).
'$iso_builtin'(read_term(_,_)).
'$iso_builtin'(read_term(_,_,_)).
'$iso_builtin'(repeat).
'$iso_builtin'(retract(_)).
'$iso_builtin'(set_input(_)).
'$iso_builtin'(set_output(_)).
'$iso_builtin'(set_prolog_flag(_,_)).
'$iso_builtin'(set_stream_position(_,_)).
'$iso_builtin'(setof(_,_,_)).
'$iso_builtin'(stream_property(_,_)).
'$iso_builtin'(sub_atom(_,_,_,_,_)).
'$iso_builtin'(_@>_).
'$iso_builtin'(_@>=_).
'$iso_builtin'(_==_).
'$iso_builtin'(_@<_).
'$iso_builtin'(_@=<_).
'$iso_builtin'(_\==_).
'$iso_builtin'(throw(_)).
'$iso_builtin'(true).
'$iso_builtin'(_\=_).
'$iso_builtin'(_=_).
'$iso_builtin'(unify_with_occurs_check(_,_)).
'$iso_builtin'(_384=.._385).
'$iso_builtin'(var(_)).
'$iso_builtin'(write(_)).
'$iso_builtin'(write(_,_)).
'$iso_builtin'(write_canonical(_)).
'$iso_builtin'(write_canonical(_,_)).
'$iso_builtin'(write_term(_,_)).
'$iso_builtin'(write_term(_,_,_)).
'$iso_builtin'(writeq(_)).
'$iso_builtin'(writeq(_,_)).
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