[plt-scheme] (typeof obj)

On 6/11/07, Shriram Krishnamurthi <sk at cs.brown.edu> wrote:
> I assume you mean 'procedure (-:.
>
> So you don't really want the type at all: you just want the run-time
> tag on a value.  (That's what *you* want -- is that what the OP
> wants?)  I don't find that very useful.  What you want you can write
> just as well in Scheme:
>
> (define (run-time-tag-of v)
>   (cond
>     [(number? v) 'number]
>     [(string? v) 'string]
>     ...
>     [(procedure? v) 'procedure]))
>
> Fill in the ... lines (about ten of them), and make a SRFI -- done!
>
> Shriram
>
> PS: I can guess the counter-argument you will give.

Structs?

> I have my
>     counter-counter-argment ready. <-;
> _________________________________________________
>   For list-related administrative tasks:
>   http://list.cs.brown.edu/mailman/listinfo/plt-scheme
>