rbe@yrloc.ipsa.reuter.COM (Robert Bernecky) (05/08/91)
MGF and LJD have been discussing how many branches can dance on the head
of one or more copulas. I see no essential difference between the
APL branch {label}
and the
J $.=. {label}
in terms of their theoretical wonderfulness, etc. J is perhaps a bit
simpler in this regard.
Howsomeever, I think that J opens a can of worms with regard to data flow
analysis, in allowing a non-item argument to $. It wouldn't be so bad, in
some senses, if the suite were guaranteed to execute, without the possibility
of short-circuiting the execution partway through with another assignment to
$.
But it sure do make things messy for compilers....
Bob
Robert Bernecky rbe@yrloc.ipsa.reuter.com bernecky@itrchq.itrc.on.ca
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