Disallow negative timeouts for Timer::tick

diff --git a/source/time/timer.cpp b/source/time/timer.cpp
index be1d1ed3291482b453ab03d228f5961eb80b8cab..e0af57cc78fcc41363632e169e33a8219653e9f1 100644 (file)
--- a/source/time/timer.cpp
+++ b/source/time/timer.cpp
@@ -69,6 +69,9 @@ void Timer::tick()
 
 void Timer::tick(const TimeDelta &timeout)
 {
+       if(timeout<zero)
+               throw invalid_argument("Timer::tick");
+
        do_tick(timeout);
 }