From 11197c507c8f64c267bcbb96f6d37af2278970b2 Mon Sep 17 00:00:00 2001
From: briankabiro <briankigondu@gmail.com>
Date: Wed, 31 Jul 2019 14:52:12 +0300
Subject: [PATCH] Add lint when comparing floats in an array

Finishes #4277
---
 clippy_lints/src/misc.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/clippy_lints/src/misc.rs b/clippy_lints/src/misc.rs
index d89f886a39b3..64aff1b5553b 100644
--- a/clippy_lints/src/misc.rs
+++ b/clippy_lints/src/misc.rs
@@ -519,7 +519,13 @@ fn is_signum(cx: &LateContext<'_, '_>, expr: &Expr) -> bool {
 }
 
 fn is_float(cx: &LateContext<'_, '_>, expr: &Expr) -> bool {
-    matches!(walk_ptrs_ty(cx.tables.expr_ty(expr)).sty, ty::Float(_))
+    let value = &walk_ptrs_ty(cx.tables.expr_ty(expr)).sty;
+
+    if let ty::Array(arr_ty, _) = value {
+        return matches!(arr_ty.sty, ty::Float(_));
+    };
+
+    matches!(value, ty::Float(_))
 }
 
 fn check_to_owned(cx: &LateContext<'_, '_>, expr: &Expr, other: &Expr) {