[plt-scheme] Question about map

I think that's a different problem. If you do this:

  #lang r5rs
  (map caadr (list '(lambda (x) x)))

it seems to work fine.

Robby

On Thu, Jul 3, 2008 at 2:26 PM, Felix Klock's PLT scheme proxy
<pltscheme at pnkfx.org> wrote:
> Robby-
>
> Marco failed to indicate what language is working in.
>
> I was able to create a similar problem this way:
>
> #lang r5rs
> (map caadr '(lambda (x) x))
>
> -Felix
>
> On Jul 3, 2008, at 3:20 PM, Robby Findler wrote:
>
>> Someone else might be able to guess the right thing here, but I'd need
>> more info to help. For example, this works fine:
>>
>>  #lang scheme
>>  (define localdefs (list '(lambda (x) x)))
>>  (map caadr localdefs)
>>
>> Robby
>>
>> On Thu, Jul 3, 2008 at 2:16 PM, Marco Morazan <morazanm at gmail.com> wrote:
>>>
>>> Hi All,
>>>
>>> I am using v4.0.1.
>>>
>>> This code: (map caadr localdefs)
>>>
>>> Produces this error:
>>>
>>> mcar: expects argument of type <mutable-pair>; given #<undefined>
>>>
>>> My code does not use mcar anywhere. I must assume it has to do with
>>> the implementation of map (?).
>>>
>>> Any pointers much appreciated.
>>>
>>> Cheers,
>>>
>>> Marco
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>
>
>