From 4525c5d1363631c782e84111af9ff588096292fb Mon Sep 17 00:00:00 2001
From: "Ralf W. Grosse-Kunstleve" <rwgk@google.com>
Date: Thu, 8 Dec 2022 22:41:37 -0800
Subject: [PATCH] Apply suggestion by @Skylion007, with additional trivial
 simplification.

---
 include/pybind11/stl_bind.h | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/include/pybind11/stl_bind.h b/include/pybind11/stl_bind.h
index f520651191..0c634597ec 100644
--- a/include/pybind11/stl_bind.h
+++ b/include/pybind11/stl_bind.h
@@ -667,13 +667,7 @@ struct KeysViewImpl : public KeysView {
     explicit KeysViewImpl(Map &map) : map(map) {}
     size_t len() override { return map.size(); }
     iterator iter() override { return make_key_iterator(map.begin(), map.end()); }
-    bool contains(const typename Map::key_type &k) override {
-        auto it = map.find(k);
-        if (it == map.end()) {
-            return false;
-        }
-        return true;
-    }
+    bool contains(const typename Map::key_type &k) override { return map.find(k) != map.end(); }
     bool contains(const object &) override { return false; }
     Map &map;
 };