Paddy, >> Dijkstra's argument is obsolete, as it is based on >> how array length was computed many years ago -- if >> we have an array a = b..e, then the lenght of a >> is e-b (half open range). Good at low level >> programming. >> >> But a quarter of a century after we know concepts >> are much better than low level programming and >> explicit computations -- if we have an array >> a = b..e, then the length of a should be a.length() >> (or a.length(b,e)), and it is independent of
> Hi Javier, > You seem to have missed out array *indexing* > in your argument, or is array indexing obsolete? Of course, it isn't, but it has evolved over the past 25 years. When Djikstra wrote that, many people (including me) was using a Spectrum--- Now we have OO programming to deal with concepts and a more generic programming. So, to me it's clear his _argument_ is very outdated and cannot be applied directly and withot reservations to modern languages like Python. Javier ----------------------------- http://www.texytipografia.com -- http://mail.python.org/mailman/listinfo/python-list