X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flibmarklin%2Fconstants.h;h=f68737dff6f60cf02ad6998691a72a029a3f5e2f;hb=48dff17ed3144d944965e7cb534e1f8fb92bd620;hp=a61972d304ebec920975bc08c9285be27eb64d6a;hpb=3e9c210ddc036cd015228504cc0803c909e27f84;p=r2c2.git

diff --git a/source/libmarklin/constants.h b/source/libmarklin/constants.h
index a61972d..f68737d 100644
--- a/source/libmarklin/constants.h
+++ b/source/libmarklin/constants.h
@@ -8,6 +8,8 @@ Distributed under the GPL
 #ifndef ERROR_H_
 #define ERROR_H_
 
+#include <ostream>
+
 namespace Marklin {
 
 enum Error
@@ -31,6 +33,8 @@ enum Error
 	ERR_UNKNOWN_ERROR=0xFF
 };
 
+std::ostream &operator<<(std::ostream &, const Error &);
+
 enum Cmd
 {
 	CMD_LOK=0x80,
@@ -55,6 +59,8 @@ enum Cmd
 	CMD_EVENT_SENSOR=0xCB
 };
 
+std::ostream &operator<<(std::ostream &, const Cmd &);
+
 } // namespace Marklin
 
 #endif