Appends element to the list and make the PlTail reference point to the new variable tail. If A is a variable, and this method is called on it using the argument "gnat", a list of the form [gnat|B] is created and the PlTail object now points to the new variable B. This method returns TRUE if the unification succeeded and FALSE otherwise. No exceptions are generated.

public bool Append(
	PlTerm term
)

Public Function Append ( 
	term As PlTerm
) As Boolean

public:
bool Append(
	PlTerm term
)

member Append : 
        term : PlTerm -> bool 

public void List_Append()
{
    PlTerm t = PlTerm.PlVar();
    PlTerm l = PlTerm.PlTail(t);

    Assert.IsTrue(l.Append(new PlTerm("one")), "append one");
    Assert.IsTrue(l.Append(new PlTerm("two")), "append two");
    Assert.IsTrue(l.Append(new PlTerm("three")), "append three");

    Assert.AreEqual(1, l.Close());

    Assert.AreEqual(3, list_length(t));
    Assert.AreEqual("[one,two,three]", t.ToString());
}