Somebody, probably Brian, apparently wrote: >> Take data abstraction. Scheme lets you define abstract data types. >> It also lets you not define abstract data types. The students who >> learn to do the former spend less time debugging. This is a >> learning experience. If Scheme forced you to define abstract data >> types, programs would arguably be safer, but students would learn >> less.
Unless Scheme is only intended to be a teaching language, it doesn't seem necessary to have training features as a permanent feature of the language, particularly when it has a pervasive effect on the language semantics, as is the case with mutable pairs. The PLT/Racket teaching dialect approach seems relevant here. Anton _______________________________________________ Scheme-reports mailing list Scheme-reports@scheme-reports.org http://lists.scheme-reports.org/cgi-bin/mailman/listinfo/scheme-reports
