1 files changed, 13 insertions, 0 deletions
diff --git a/src/test/ui/const-generics/different_generic_args.rs b/src/test/ui/const-generics/different_generic_args.rs
new file mode 100644
index 000000000..9ee0e0747
--- /dev/null
+++ b/src/test/ui/const-generics/different_generic_args.rs
@@ -0,0 +1,13 @@
+// Check that types with different const arguments are different.
+// revisions: full min
+
+#![cfg_attr(full, feature(generic_const_exprs))]
+#![cfg_attr(full, allow(incomplete_features))]
+
+struct ConstUsize<const V: usize> {}
+
+fn main() {
+    let mut u = ConstUsize::<3> {};
+    u = ConstUsize::<4> {};
+    //~^ ERROR mismatched types
+}