Bug 2869 – alias type not equal to origin type when typeof called on it

alias type not equel to origin type when typeof call on it only occur on the basic type such as: alias int inttype; if(is(typeof(int)) //complier error if(is(typeof(inttype))//OK

The compiler is behaving correctly. http://www.digitalmars.com/d/2.0/declaration.html#Typeof Typeof: typeof ( Expression ) typeof ( return ) "int" is not parseable as an expression, therefore "typeof(int)" correctly fails to compile. "inttype" is, OTOH, parseable as an expression, just not semantically valid as one. Therefore the IsExpression correctly evaluates to false.