add operator bool() to Evoral::Beats

diff --git a/libs/evoral/evoral/Beats.hpp b/libs/evoral/evoral/Beats.hpp
index e0277c4b3d999d4aa36487df2935c46d82ba352f..c419c920f1a3a252d394ca11d1c2ad90039400cb 100644 (file)
--- a/libs/evoral/evoral/Beats.hpp
+++ b/libs/evoral/evoral/Beats.hpp
@@ -191,6 +191,8 @@ public:
 
        bool operator!() const { return _time == 0; }
 
+       operator bool() const { return _time != 0; }
+       
        static Beats min()  { return Beats(DBL_MIN); }
        static Beats max()  { return Beats(DBL_MAX); }
        static Beats tick() { return Beats(1.0 / PPQN); }