[plt-scheme] hash tables

From: John Clements (clements at brinckerhoff.org)
Date: Tue Jul 15 17:10:31 EDT 2008

On Jul 15, 2008, at 2:02 PM, Jens Axel Soegaard wrote:

> Ivanyi Peter wrote:
>> Eli Barzilay <eli at barzilay.org> írta:
>>> Use #lang scheme.  The mzscheme language uses the old names.
>> Thanks for every answer. However if I use the scheme language
>> then the if statement becomes "strange", as it says that the
>> if statement
>> must have an else part. (As I remember that was not a
>> requirement
>> in R5RS.)
>> So...
> Use when as a replacement for one armed if.
> It is easier to shoot yourself in the foot, if you only have one arm!

That is, the problem with having only one arm is that you may shoot  
yourself in the foot by adding more arms to yourself without  
considering the consequences.

This is a generally applicable medical principle, as well.  It's down  
in the small print of the Hippocratic oath.

John Clements

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