From d067d0352bfc5a6979f477bc96c969b040437618 Mon Sep 17 00:00:00 2001
From: Michael Wright <mikerite@lavabit.com>
Date: Tue, 14 Jul 2020 08:18:15 +0200
Subject: [PATCH] Add test for `needless_range_loop` issue

Closes #2277

This was fixed when we fixed #2542.
---
 tests/ui/needless_range_loop2.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tests/ui/needless_range_loop2.rs b/tests/ui/needless_range_loop2.rs
index 2ed1b09bece7..a82b11591619 100644
--- a/tests/ui/needless_range_loop2.rs
+++ b/tests/ui/needless_range_loop2.rs
@@ -83,3 +83,13 @@ fn main() {
         println!("{}", arr[i]);
     }
 }
+
+mod issue2277 {
+    pub fn example(list: &[[f64; 3]]) {
+        let mut x: [f64; 3] = [10.; 3];
+
+        for i in 0..3 {
+            x[i] = list.iter().map(|item| item[i]).sum::<f64>();
+        }
+    }
+}