On Fri, Jan 16, 2009 at 2:46 AM, Hoenir <mrmocool at gmx.de> wrote: > Thanks for your explanation. > Is there any good resource about that stuff other than > http://www.digitalmars.com/d/1.0/template.html > Yeah. http://www.digitalmars.com/d/1.0/expression.html#IsExpression