From 201047a12c3522e3ae90c42c1c42f0bad5c89927 Mon Sep 17 00:00:00 2001
From: skarg <skarg@1e814d3a-8a88-4260-be86-c0dc25669c1e>
Date: Sun, 21 May 2006 12:16:43 +0000
Subject: [PATCH] Added proprietary signed property for testing Ethereal and
 signed encoding and decoding.

---
 bacnet-stack/demo/object/ai.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/bacnet-stack/demo/object/ai.c b/bacnet-stack/demo/object/ai.c
index f5f63de8..185248ce 100644
--- a/bacnet-stack/demo/object/ai.c
+++ b/bacnet-stack/demo/object/ai.c
@@ -121,6 +121,10 @@ int Analog_Input_Encode_Property_APDU(uint8_t * apdu,
     case PROP_UNITS:
         apdu_len = encode_tagged_enumerated(&apdu[0], UNITS_PERCENT);
         break;
+    /* test case for signed encoding and decoding negative value correctly */
+    case 9999:
+        apdu_len = encode_tagged_signed(&apdu[0], -200);
+        break;
     default:
         *error_class = ERROR_CLASS_PROPERTY;
         *error_code = ERROR_CODE_UNKNOWN_PROPERTY;