1 files changed, 10 insertions, 0 deletions
diff --git a/tests/ui/suggestions/raw-c-string-prefix.rs b/tests/ui/suggestions/raw-c-string-prefix.rs
new file mode 100644
index 00000000000..6af72df4024
--- /dev/null
+++ b/tests/ui/suggestions/raw-c-string-prefix.rs
@@ -0,0 +1,10 @@
+// `rc` and `cr` are easy to confuse; check that we issue a suggestion to help.
+
+//@ edition:2021
+
+fn main() {
+    rc"abc";
+    //~^ ERROR: prefix `rc` is unknown
+    //~| HELP: use `cr` for a raw C-string
+    //~| ERROR: expected one of
+}