diogo/yap-6.3
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make sure that undef within undef is really disallowed.

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git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1230 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
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vsc 2005-01-12 20:06:02 +00:00
parent 9d8f0e470d
commit c9307a5987
1 changed files with 4 additions and 4 deletions
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8
pl/boot.yap
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@ -753,12 +753,12 @@ not(G) :- \+ '$execute'(G).
'$do_undefp'(G,M) :-
\+ '$undefined'(unknown_predicate_handler(_,_,_), user),
'$system_catch'(unknown_predicate_handler(G,M,NG), user, _, fail), !,
'$exit_undefp',
'$execute'(user:NG).
'$execute'(user:NG),
'$exit_undefp'.
'$do_undefp'(G,M) :-
recorded('$unknown','$unknown'(M:G,US),_), !,
'$exit_undefp',
'$execute'(user:US).
'$execute'(user:US),
'$exit_undefp'.
'$do_undefp'(_,_) :-
'$exit_undefp',
fail.