1 files changed, 34 insertions, 0 deletions
diff --git a/tests/ui/repeat-expr/repeat_count.rs b/tests/ui/repeat-expr/repeat_count.rs
new file mode 100644
index 00000000000..96abff4ab41
--- /dev/null
+++ b/tests/ui/repeat-expr/repeat_count.rs
@@ -0,0 +1,34 @@
+// Regression test for issue #3645
+
+fn main() {
+    let n = 1;
+    let a = [0; n];
+    //~^ ERROR attempt to use a non-constant value in a constant [E0435]
+    let b = [0; ()];
+    //~^ ERROR mismatched types
+    //~| expected `usize`, found `()`
+    let c = [0; true];
+    //~^ ERROR mismatched types
+    //~| expected `usize`, found `bool`
+    let d = [0; 0.5];
+    //~^ ERROR mismatched types
+    //~| expected `usize`, found floating-point number
+    let e = [0; "foo"];
+    //~^ ERROR mismatched types
+    //~| expected `usize`, found `&str`
+    let f = [0; -4_isize];
+    //~^ ERROR mismatched types
+    //~| expected `usize`, found `isize`
+    let f = [0_usize; -1_isize];
+    //~^ ERROR mismatched types
+    //~| expected `usize`, found `isize`
+    let f = [0; 4u8];
+    //~^ ERROR mismatched types
+    //~| expected `usize`, found `u8`
+    struct G {
+        g: (),
+    }
+    let g = [0; G { g: () }];
+    //~^ ERROR mismatched types
+    //~| expected `usize`, found struct `G`
+}