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