From a191f57408817d669bf31adc4436ed0760fc2875 Mon Sep 17 00:00:00 2001
From: islander <mikudehuane@gmail.com>
Date: Wed, 24 Jan 2024 00:04:33 +0800
Subject: [PATCH] [FIX] fix the behavior of flatbuffers::Optional to match
 std::optional when lhs and rhs are both nullopt

---
 include/flatbuffers/stl_emulation.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/flatbuffers/stl_emulation.h b/include/flatbuffers/stl_emulation.h
index 5f19eaf8d41..67c6768cbf2 100644
--- a/include/flatbuffers/stl_emulation.h
+++ b/include/flatbuffers/stl_emulation.h
@@ -273,7 +273,7 @@ template<class T, class U>
 FLATBUFFERS_CONSTEXPR_CPP11 bool operator==(const Optional<T>& lhs, const Optional<U>& rhs) FLATBUFFERS_NOEXCEPT {
   return static_cast<bool>(lhs) != static_cast<bool>(rhs)
               ? false
-              : !static_cast<bool>(lhs) ? false : (*lhs == *rhs);
+              : !static_cast<bool>(lhs) ? true : (*lhs == *rhs);
 }
 #endif // FLATBUFFERS_USE_STD_OPTIONAL