On Tue, May 24, 2016 at 08:40:37PM +0100, Rainer Weikusat wrote: > > ... and what the Lisp 1.5 FUNCTION was about was to enable solving the > so-called 'upward funarg problem': Assuming a function is returned > (passed upward) when evaluating an expression and later activated in a > different context, what are free variables used by the returned function > supposed to refer to, the values they had at the time when the function > was defined or the values they had when the function is activated? Eg, > assuming this code,
And by wrapping FUNCTION around every lambda-expression (which I did in those days) you oachieve lexical scoping. But it's messy, and there's no defense against accidentally leaving FUNCTION out. -- hendrik _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
