Bug fix null-pointer deref

opencog · Mar 26, 2024 · 99c6645 · 99c6645
1 parent d21132c
commit 99c6645
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diff --git a/link-grammar/dict-atomese/lookup-atomese.cc b/link-grammar/dict-atomese/lookup-atomese.cc
@@ -725,7 +725,7 @@ Dict_node * as_lookup_list(Dictionary dict, const char *s)
 		}
 	}
 
-	// If we are here, then thre are only pairs, no sections.
+	// If we are here, then there are only pairs, no sections.
 	if (cpr)
 	{
 		Dict_node * dn = dict_node_new();

diff --git a/link-grammar/dict-atomese/word-pairs.cc b/link-grammar/dict-atomese/word-pairs.cc
@@ -337,6 +337,7 @@ static Exp* get_sent_pair_exprs(Dictionary dict, const Handle& germ,
                                 const HandleSeq& sent_words)
 {
 	Exp* allexp = get_pair_exprs(dict, germ);
+	if (nullptr == allexp) return allexp;
 
 	// Wrap the pair-expressions with a solitary AND-node from the
 	// temporary Sentance::Exp_pool, as otherwise the operand_next