Tuples allow either types or constants to be used as arguments.

template tuple(T...);
tuple!(int, 35);

Is there any way to safely tell if a tuple argument is a type or a constant without getting an error from the compiler?

"Xinok" <xnknet@gmail.com> wrote in message news:ep91ad$sno$1@digitaldaemon.com...
> Tuples allow either types or constants to be used as arguments.
>
> template tuple(T...);
> tuple!(int, 35);
>
> Is there any way to safely tell if a tuple argument is a type or a constant without getting an error from the compiler?

If you use std.typetraits, there is a metafunction isExpressionTuple().  If that returns true, then it's constants; otherwise, it's, well, I guess any mix of types and expressions.  But hopefully just types.  (this is kind of an ugly thing with tuples, no?)