1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/warn/Wchar-subscripts-2.C b/gcc/testsuite/g++.dg/warn/Wchar-subscripts-2.C
new file mode 100644
index 000000000..2170cb206
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/Wchar-subscripts-2.C
@@ -0,0 +1,15 @@
+/* PR c++/16307 */
+// { dg-do compile }
+// { dg-options "-Wchar-subscripts" }
+
+extern volatile char bla;
+
+char foo (const char *s)
+{
+    return s [bla];          // { dg-warning "array subscript" }
+}
+
+int main ()
+{
+    foo ("\x80");
+}