From 89625360ec4fa11bdc073a74607c7ff0f624fb96 Mon Sep 17 00:00:00 2001
From: xizheyin <xizheyin@smail.nju.edu.cn>
Date: Wed, 26 Mar 2025 11:27:52 +0800
Subject: [PATCH] Add ui test cast-array-issue-138836

Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>
---
 tests/ui/cast/cast-array-issue-138836.rs     |  5 +++++
 tests/ui/cast/cast-array-issue-138836.stderr | 12 ++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 tests/ui/cast/cast-array-issue-138836.rs
 create mode 100644 tests/ui/cast/cast-array-issue-138836.stderr

diff --git a/tests/ui/cast/cast-array-issue-138836.rs b/tests/ui/cast/cast-array-issue-138836.rs
new file mode 100644
index 000000000000..6fd65d5878ac
--- /dev/null
+++ b/tests/ui/cast/cast-array-issue-138836.rs
@@ -0,0 +1,5 @@
+fn main() {
+    let a: [u8; 3] = [1,2,3];
+    let b = &a;
+    let c = b as *const [u32; 3]; //~ ERROR mismatched types [E0308]
+}
diff --git a/tests/ui/cast/cast-array-issue-138836.stderr b/tests/ui/cast/cast-array-issue-138836.stderr
new file mode 100644
index 000000000000..fe20d429a498
--- /dev/null
+++ b/tests/ui/cast/cast-array-issue-138836.stderr
@@ -0,0 +1,12 @@
+error[E0308]: mismatched types
+  --> $DIR/cast-array-issue-138836.rs:4:13
+   |
+LL |     let c = b as *const [u32; 3];
+   |             ^^^^^^^^^^^^^^^^^^^^ expected `[u8; 3]`, found `[u32; 3]`
+   |
+   = note: expected array `[u8; 3]`
+              found array `[u32; 3]`
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0308`.