From 2beb87136b5defd7a88caadc3e3183616eea6cd3 Mon Sep 17 00:00:00 2001
From: Benoit Blanchon <github@benoitblanchon.fr>
Date: Tue, 11 Nov 2014 17:15:53 +0100
Subject: [PATCH] Fixed writeTo() of invalid and undefined value

---
 src/JsonVariant.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/JsonVariant.cpp b/src/JsonVariant.cpp
index df66bc99..8e365f69 100644
--- a/src/JsonVariant.cpp
+++ b/src/JsonVariant.cpp
@@ -112,6 +112,10 @@ void JsonVariant::writeTo(JsonWriter &writer) const {
       writer.writeBoolean(_content.asBoolean);
       break;
 
+    case JSON_INVALID:
+    case JSON_UNDEFINED:
+      break;
+
     default:  // >= JSON_DOUBLE_0_DECIMALS
       uint8_t decimals = static_cast<uint8_t>(_type - JSON_DOUBLE_0_DECIMALS);
       writer.writeDouble(_content.asDouble, decimals);