added string method

sortedList.go

@@ -1,5 +1,7 @@
 package sortedList
 
+import "fmt"
+
 type num float64
 type elem interface{}
 
@@ -71,6 +73,18 @@ func (sl *SortedList) Nearest(value num) (elem, error) {
 	panic("reached unreachable statement")
 }
 
+func (sl *SortedList) String() string {
+	str := "["
+	for i, v := range sl.elems {
+		if i != 0 {
+			str += " "
+		}
+		str += fmt.Sprintf("%v", v.elem)
+	}
+	str += "]"
+	return str
+}
+
 func (sl *SortedList) Elems() []*listElem {
 	return sl.elems
 }

sortedList_test.go

@@ -24,4 +24,6 @@ func TestSortedList(t *testing.T) {
 	value, err = list.Nearest(2);	if err != nil {tools.WrapErr(err, "could not get element from list", t)}
 	tools.Test(value == "b", "did not get corrent element", t)
 
+	t.Log(list.String())
+
 }