RIOT: Add in cplusplus wrappers to example header files

examples/riot/examples_libcoap_client/client-coap.h

@@ -9,8 +9,21 @@
  * of use.
  */
 
+#ifndef CLIENT_COAP_H
+#define CLIENT_COAP_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include "coap_config.h"
 #include <coap3/coap.h>
 
 /* Start up the CoAP Client */
 void client_coap_init(int argc, char **argv);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CLIENT_COAP_H */

examples/riot/examples_libcoap_server/server-coap.h

@@ -9,8 +9,21 @@
  * of use.
  */
 
+#ifndef SERVER_COAP_H
+#define SERVER_COAP_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include "coap_config.h"
 #include <coap3/coap.h>
 
 /* Start up the CoAP Server */
 void server_coap_init(int argc, char **argv);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SERVER_COAP_H */