From 0af3ef008109e84a57bda8d7b0ee3e37bbf1c905 Mon Sep 17 00:00:00 2001
From: Gabriel Terwesten <gabriel@terwesten.net>
Date: Wed, 28 Sep 2022 15:03:29 +0200
Subject: [PATCH] Fix assert to handle `nan`

---
 Fleece/Mutable/ValueSlot.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Fleece/Mutable/ValueSlot.cc b/Fleece/Mutable/ValueSlot.cc
index a21d7fbd..591f5d22 100644
--- a/Fleece/Mutable/ValueSlot.cc
+++ b/Fleece/Mutable/ValueSlot.cc
@@ -16,6 +16,7 @@
 #include "Encoder.hh"
 #include "varint.hh"
 #include <algorithm>
+#include <cmath>
 
 namespace fleece { namespace impl {
     using namespace std;
@@ -176,7 +177,7 @@ namespace fleece { namespace impl {
         } else {
             setPointer(HeapValue::create(d)->asValue());
         }
-        assert_postcondition(asValue()->asDouble() == d);
+        assert_postcondition(asValue()->asDouble() == d || (isnan(asValue()->asDouble()) && isnan(d)));
     }