[racket] empty hash tables

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On 05/30/11 10:30, Marijn wrote:
> Hi Pierpaolo,
> 
> On 05/30/11 10:24, Pierpaolo Bernardi wrote:
>> BTW, since the topic of empty tables has been brought up: I am often
>> (mildly) annoyed by the fact that make-hash takes 0 or 1 argument,
>> while make-immutable-hash takes only 1 argument, forcing me to write
>> (make-immutable-hash '())..
> 
>> Is there a reason for this lack of simmetry?
> 
>> P.
> 
> `make-immutable-hash' is for constructing immutable hashes from
> association lists; `hash' is the immutable equivalent of `make-hash'.

Sorry for my hasty wrong reply; the docs say that `make-hash' and
friends also take association lists, so `hash' and friends are the odd
ones out, taking `key value' as alternating arguments...

Marijn
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