Fixed "pointless integer comparison" warning on IAR (issue bblanchon#1233)

Author: bblanchon

CHANGELOG.md

@@ -6,6 +6,7 @@ HEAD
 
 * Fixed "maybe-uninitialized" warning (issue #1217)
 * Fixed "statement is unreachable" warning on IAR (issue #1233)
+* Fixed "pointless integer comparison" warning on IAR (issue #1233)
 
 v6.15.0 (2020-03-22)
 -------

src/ArduinoJson/MsgPack/MsgPackSerializer.hpp

@@ -125,7 +125,13 @@ class MsgPackSerializer {
     } else if (value <= 0xFFFF) {
       writeByte(0xCD);
       writeInteger(uint16_t(value));
-    } else if (value <= 0xFFFFFFFF) {
+    }
+#if ARDUINOJSON_USE_LONG_LONG
+    else if (value <= 0xFFFFFFFF)
+#else
+    else
+#endif
+    {
       writeByte(0xCE);
       writeInteger(uint32_t(value));
     }