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term_variables could store local variable in global.

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git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@2199 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
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vsc
2008-04-03 10:50:28 +00:00
parent 2462596050
commit 92d26f604e
2 changed files with 16 additions and 3 deletions
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12
C/utilpreds.c
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@@ -742,7 +742,11 @@ p_term_variables(void) /* variables in term t */
do {
Term t = Deref(ARG1);
if (IsVarTerm(t)) {
return Yap_unify(MkPairTerm(t,TermNil), ARG2);
Term out = Yap_MkNewPairTerm();
return
Yap_unify(t,HeadOfTerm(out)) &&
Yap_unify(TermNil, TailOfTerm(out)) &&
Yap_unify(out, ARG2);
} else if (IsPrimitiveTerm(t)) {
return Yap_unify(TermNil, ARG2);
} else if (IsPairTerm(t)) {
@@ -771,7 +775,11 @@ p_term_variables3(void) /* variables in term t */
do {
Term t = Deref(ARG1);
if (IsVarTerm(t)) {
return Yap_unify(MkPairTerm(t,ARG3), ARG2);
Term out = Yap_MkNewPairTerm();
return
Yap_unify(t,HeadOfTerm(out)) &&
Yap_unify(ARG3, TailOfTerm(out)) &&
Yap_unify(out, ARG2);
} else if (IsPrimitiveTerm(t)) {
return Yap_unify(ARG2, ARG3);
} else if (IsPairTerm(t)) {