--- /dev/null
+// +build ignore
+
+package D1
+
+import "fmt"
+
+func example() {
+ fmt.Println(123, "a") // match
+ fmt.Println(0x7b, `a`) // match
+ fmt.Println(0173, "\x61") // match
+ fmt.Println(100+20+3, "a"+"") // no match: constant expressions, but not basic literals
+}