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-rw-r--r--tests/ui/macros/concat.rs6
1 files changed, 6 insertions, 0 deletions
diff --git a/tests/ui/macros/concat.rs b/tests/ui/macros/concat.rs
new file mode 100644
index 000000000..d7ab7d626
--- /dev/null
+++ b/tests/ui/macros/concat.rs
@@ -0,0 +1,6 @@
+fn main() {
+ concat!(b'f'); //~ ERROR: cannot concatenate a byte string literal
+ concat!(b"foo"); //~ ERROR: cannot concatenate a byte string literal
+ concat!(foo); //~ ERROR: expected a literal
+ concat!(foo()); //~ ERROR: expected a literal
+}