skaller wrote:
> should work. Or perhaps:
>
> const inf: double = "1.0/0.0";
I'd prefer that. I wish we could do this, but it doesn't compile because
of the "virtual const".
************************
typeclass Floating[T] {
virtual const inf: T;
virtual fun isinf: T -> bool;
}
instance Floating[float] {
const inf: float = "1.0f/0.0f";
fun isinf (x:float) : bool => (abs x) == inf;
}
open Floating[float];
var x = inf[float];
************************
>> I could see it useful to be able to have a numeric_limits-like typeclass
>> to provide this kind of metadata about types.
>
> C++ numeric limits are singularly useless because they can't
> be accessed during pre-processing .. which is where they're
> usually needed. C macros don't have this problem .. and
> are available at run time too.
We can't do that yet, right? That would require something like MetaOCaml?
-e
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