[racket] Override primitive operations

Not map, no. But you can do this with printing and the function call
operation using struct properties (ie you create a new struct and then
attach a property to it that shows how the operations should treat
instances of your new struct).

Robby

2011/5/21 José Lopes <jose.lopes at ist.utl.pt>:
> Hello,
>
> Is it possible to override primitive operations, such as map, to work with
> user-defined types? If affirmative, is it also possible to reference the
> default operation after override?
>
> Regards,
> José
>
> --
> José António Branquinho de Oliveira Lopes
> 58612 - MEIC-A
> jose.lopes at ist.utl.pt
>
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