Throwing exceptions

Hi,

I need a way to throw a message in a function, when an exception occurs, but I
don't want to write again and again the same message in every place I need to
throw it. So, is there a way to handle this situation in a more general
manner?

Thanks in advance,

--
Germán Hüttemann Arza
CNC - Centro Nacional de Computación
UNA - Universidad Nacional de Asunción
Campus Universitario, San Lorenzo - Paraguay
http://www.cnc.una.py - Tel.: +595 21 585550