Re: syntax-rules problem

William D Clinger <[email protected]>
Newsgroups gmane.lisp.scheme.scheme48
Message-ID <[email protected]>
Helmut Eller wrote:

> BTW, the same code example, when evaluated in Ikarus or Larceny,
> returns 0 without complaining.

In R5RS mode, Larceny uses an initial environment in
which all possible variables are bound to locations,
most of which contain undefined values.  This semantics,
which is explicitly permitted by R5RS 5.2.1, avoids many
of the semantic problems that arise in implementations
that attempt to treat top-level definition as a binding
construct.

> Sorry, for asking newbie questions.

It wasn't a newbie question.  There are still a lot of
experienced Schemers who don't understand this stuff.

Will
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