cowan at ccil.org
Thu Sep 21 23:21:57 EDT 2006
Anton van Straaten scripsit:
> A value named "unspecified" (or #<unspecified>, #!unspecified etc.) is
> used by Chicken, Larceny, and SCM, at least. Others (in addition to
> Scheme 48) use some variant such as "unspecific". Others, of course,
> use a variation on "void", apparently borrowed from C.
The current implementation of Chicken does not have any such read-syntax.
If forced to (as by display), the unspecified value will print as
#<unspecified>, but it can't be reread. However, the core procedure
"void" returns the unspecified value when invoked.
That you can cover for the plentiful John Cowan
and often gaping errors, misconstruals, http://www.ccil.org/~cowan
and disinformation in your posts cowan at ccil.org
through sheer volume -- that is another
misconception. --Mike to Peter
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