1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/ui/const-generics/uninferred-consts-during-codegen-1.rs b/src/test/ui/const-generics/uninferred-consts-during-codegen-1.rs
new file mode 100644
index 000000000..c7270e835
--- /dev/null
+++ b/src/test/ui/const-generics/uninferred-consts-during-codegen-1.rs
@@ -0,0 +1,15 @@
+// run-pass
+
+use std::fmt;
+
+struct Array<T, const N: usize>([T; N]);
+
+impl<T: fmt::Debug, const N: usize> fmt::Debug for Array<T, N> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        f.debug_list().entries(self.0.iter()).finish()
+    }
+}
+
+fn main() {
+    assert_eq!(format!("{:?}", Array([1, 2, 3])), "[1, 2, 3]");
+}