Hello all, I was (mis)using the interval library for time intervals. However the equality operator fails for a simple test: boost::numeric::interval<int> intv1(1, 3); boost::numeric::interval<int> intv2 = intv1; //throws bool b = (intv1 == intv2); probably i don't understand the whole idea about this interval arithmetic library then. Could somebody tell me what I do wrong?