Alan Watson scripsit: > Formal Comment
Ticket #372 filed for the Formal Comment; ticket #373 filed for the change. I support this proposal. Stefan Edwards scripsit: > Should it perhaps be similar to what is defined in section 6.3 (i.e. > similar to if's <Test>)? > > " Of all the Scheme values, only #f counts as false in condi- tional > expressions. All other Scheme values, including #t, count as true " > > and leave it as implementation defined if the value passed to exit is > actually returned to the OS/system below Scheme. I don't support this, because process exit is not like Scheme truth. In a process exit, there is only one kind of success (0 in Posix/Windows, "" in Plan 9, 2 in VMS, etc.), whereas there are many kinds of failure. So #t should map to conventional success, #f should map to some kind of failure, and any other object should be (as far as possible) passed to the OS. -- A poetical purist named Cowan [that's me: [email protected]] Once put the rest of us dowan. [on xml-dev] "Your verse would be sweeter http://www.ccil.org/~cowan If it only had metre And rhymes that didn't force me to frowan." [overpacked line!] --Michael Kay _______________________________________________ Scheme-reports mailing list [email protected] http://lists.scheme-reports.org/cgi-bin/mailman/listinfo/scheme-reports
