Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 29 insertions, 0 deletions

diff --git a/src/test/ui/const-generics/generic_const_exprs/nested_uneval_unification-2.rs b/src/test/ui/const-generics/generic_const_exprs/nested_uneval_unification-2.rs
new file mode 100644
index 000000000..d45a6465b
--- /dev/null
+++ b/src/test/ui/const-generics/generic_const_exprs/nested_uneval_unification-2.rs
@@ -0,0 +1,29 @@
+// run-pass
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features, unused_parens, unused_braces)]
+
+fn zero_init<const N: usize>() -> Substs1<{ (N) }>
+where
+    [u8; { (N) }]: ,
+{
+    Substs1([0; { (N) }])
+}
+
+struct Substs1<const N: usize>([u8; { (N) }])
+where
+    [(); { (N) }]: ;
+
+fn substs2<const M: usize>() -> Substs1<{ (M) }> {
+    zero_init::<{ (M) }>()
+}
+
+fn substs3<const L: usize>() -> Substs1<{ (L) }> {
+    substs2::<{ (L) }>()
+}
+
+fn main() {
+    assert_eq!(substs3::<2>().0, [0; 2]);
+}
+
+// Test that the implicit ``{ (L) }`` bound on ``substs3`` satisfies the
+// ``{ (N) }`` bound on ``Substs1``