got rid of double-free conditions and segfault

2021-03-29 14:01:13 -05:00
parent bb2be9c16c
commit b0072dffa4
3 changed files with 44 additions and 12 deletions
--- a/yabDataStructures.cpp
+++ b/yabDataStructures.cpp
@@ -448,8 +448,11 @@ operands *expression::evaluate()
 	this->oper=O_TERM;
 	l->dispose();
 	delete left;
-	r->dispose();
-	delete right;
+	if (getRight()!=nullptr)
+	{
+		r->dispose();
+		delete right;
+	}
 	return this->op;
 }