--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/warn/Wformat-ranges-c++11.C	Thu Oct 25 07:37:49 2018 +0900
@@ -0,0 +1,18 @@
+// { dg-do compile { target c++11 } }
+/* { dg-options "-Wformat -fdiagnostics-show-caret" } */
+
+/* C++11-specific format tests. */
+
+#define printf __builtin_printf
+
+void test_u8 (const char *msg)
+{
+  printf(u8"hello %i", msg);/* { dg-warning "format '%i' expects argument of type 'int', but argument 2 has type 'const char\\*' " } */
+/* { dg-begin-multiline-output "" }
+   printf(u8"hello %i", msg);
+                   ~^   ~~~
+                    |   |
+                    int const char*
+                   %s
+   { dg-end-multiline-output "" } */
+}