1 files changed, 12 insertions, 0 deletions
diff --git a/test/SemaCXX/format-strings-0x.cpp b/test/SemaCXX/format-strings-0x.cpp
index e7c5904..7b3aef1 100644
--- a/test/SemaCXX/format-strings-0x.cpp
+++ b/test/SemaCXX/format-strings-0x.cpp
@@ -12,4 +12,16 @@ void f(char **sp, float *fp) {
   scanf("%afoobar", fp);
   printf(nullptr);
   printf(*sp); // expected-warning {{not a string literal}}
+
+  // PR13099
+  printf(
+    R"foobar(%)foobar"
+    R"bazquux(d)bazquux" // expected-warning {{more '%' conversions than data arguments}}
+    R"xyzzy()xyzzy");
+
+  printf(u8"this is %d test", 0); // ok
+  printf(u8R"foo(
+      \u1234\U0010fffe
+      %d)foo" // expected-warning {{more '%' conversions than data arguments}}
+  );
 }