Fixed ports/xplained conversion of double warning. (#1004)

* Fixed ports/xplained conversion of double warning.

* Fixed BACNET_USE_DOUBLE usage in AVR ports.

* Fixed integer out-of-range in AVR port.

* Fixed missing function prototype for whois_request_encode().

src/bacnet/config.h

@@ -331,6 +331,34 @@
 #define MAX_OCTET_STRING_BYTES (MAX_APDU - 6)
 #endif
 
+/* Do we need any octet strings? */
+#ifndef BACNET_USE_OCTETSTRING
+#define BACNET_USE_OCTETSTRING 1
+#endif
+
+/* Do we need any doubles? */
+#ifndef BACNET_USE_DOUBLE
+#define BACNET_USE_DOUBLE 1
+#endif
+
+/* Do we need any signed integers */
+#ifndef BACNET_USE_SIGNED
+#define BACNET_USE_SIGNED 1
+#endif
+
+/* if a datatype is not enabled, the BACapp helper cannot use it */
+#if (BACNET_USE_OCTETSTRING == 0)
+#undef BACAPP_OCTET_STRING
+#endif
+
+#if (BACNET_USE_DOUBLE == 0)
+#undef BACAPP_DOUBLE
+#endif
+
+#if (BACNET_USE_SIGNED == 0)
+#undef BACAPP_SIGNED
+#endif
+
 /**
  * @note Control the selection of services etc to enable code size reduction
  * for those compiler suites which do not handle removing of unused functions
@@ -339,12 +367,16 @@
  * We will start with the A type services code first as these are least likely
  * to be required in embedded systems using the stack.
  */
-#ifndef BACNET_SVC_SERVER
+#if !(                                                          \
+    defined(BACNET_SVC_I_HAVE_A) || defined(BACNET_SVC_WP_A) || \
+    defined(BACNET_SVC_RP_A) || defined(BACNET_SVC_RPM_A) ||    \
+    defined(BACNET_SVC_DCC_A) || defined(BACNET_SVC_RD_A) ||    \
+    defined(BACNET_SVC_TS_A) || defined(BACNET_SVC_SERVER))
 /* default to client-server device for the example apps to build. */
 #define BACNET_SVC_SERVER 0
 #endif
 
-#if (BACNET_SVC_SERVER == 0)
+#if defined(BACNET_SVC_SERVER) && (BACNET_SVC_SERVER == 0)
 /* client-server device */
 #define BACNET_SVC_I_HAVE_A 1
 #define BACNET_SVC_WP_A 1
@@ -353,9 +385,6 @@
 #define BACNET_SVC_DCC_A 1
 #define BACNET_SVC_RD_A 1
 #define BACNET_SVC_TS_A 1
-#define BACNET_USE_OCTETSTRING 1
-#define BACNET_USE_DOUBLE 1
-#define BACNET_USE_SIGNED 1
 #endif
 
 /* Do them one by one */
@@ -383,16 +412,4 @@
 #define BACNET_SVC_RD_A 0
 #endif
 
-#ifndef BACNET_USE_OCTETSTRING /* Do we need any octet strings? */
-#define BACNET_USE_OCTETSTRING 0
-#endif
-
-#ifndef BACNET_USE_DOUBLE /* Do we need any doubles? */
-#define BACNET_USE_DOUBLE 0
-#endif
-
-#ifndef BACNET_USE_SIGNED /* Do we need any signed integers */
-#define BACNET_USE_SIGNED 0
-#endif
-
 #endif