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-rw-r--r--src/test/ui/const-generics/defaults/default-on-impl.rs6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/test/ui/const-generics/defaults/default-on-impl.rs b/src/test/ui/const-generics/defaults/default-on-impl.rs
new file mode 100644
index 000000000..9ce46aa09
--- /dev/null
+++ b/src/test/ui/const-generics/defaults/default-on-impl.rs
@@ -0,0 +1,6 @@
+struct Foo<const N: usize>;
+
+impl<const N: usize = 1> Foo<N> {}
+//~^ ERROR defaults for const parameters are only allowed
+
+fn main() {}