===================================================================
RCS file: /home/cvs/GiNaC/ginac/pseries.cpp,v
retrieving revision 1.75
diff -r1.75 pseries.cpp
790c790,794
< 		int real_ldegree = buf.expand().ldegree(sym-r.rhs());
---
> 		int real_ldegree = 0;
> 		try {
> 			real_ldegree = buf.expand().ldegree(sym-r.rhs());
> 		}
> 		catch (std::runtime_error) {}