1 files changed, 14 insertions, 0 deletions
diff --git a/src/test/ui/const-generics/defaults/generic-expr-default-concrete.rs b/src/test/ui/const-generics/defaults/generic-expr-default-concrete.rs
new file mode 100644
index 00000000000..52cea51aae1
--- /dev/null
+++ b/src/test/ui/const-generics/defaults/generic-expr-default-concrete.rs
@@ -0,0 +1,14 @@
+#![feature(generic_const_exprs, const_generics_defaults)]
+#![allow(incomplete_features)]
+
+struct Foo<const N: usize, const M: usize = { N + 1 }>;
+fn no_constraining() -> Foo<10> {
+    Foo::<10, 11>
+}
+
+pub fn different_than_default() -> Foo<10> {
+    Foo::<10, 12>
+    //~^ error: mismatched types
+}
+
+fn main() {}