Subject: Re: (let) and (let*)
From: rpw3@rigden.engr.sgi.com (Rob Warnock)
Date: 2000/04/11
Newsgroups: comp.lang.scheme
Message-ID: <8cuojh$2bp71$1@fido.engr.sgi.com>
Daniel C. Wang <danwang+news@cs.princeton.edu> wrote:
+---------------
| Ahh but my point is that LET is like an unsafe cast/#paragma. You're telling
| the compiler that your program doesn't depend on the order of evaluation.
+---------------

Like, so *what*, dude?  The Scheme standard doesn't specify
order of evaluation for *any* procedure call... and "let" is
just a macro for a procedure call.

+---------------
| you get it wrong then your code breaks when you move it to a compiler that
| uses a different order of evaluation. Undefined order of evaluation is just
| a semantic misfeature that encourages bugs. 
+---------------

Then all of Scheme is a "semantic misfeature"?  [NOT!]


-Rob

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Rob Warnock, 41L-955		rpw3@sgi.com
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