From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=0.2 required=5.0 tests=BAYES_00,INVALID_MSGID, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: fac41,b87849933931bc93 X-Google-Attributes: gidfac41,public X-Google-Thread: 114809,b87849933931bc93 X-Google-Attributes: gid114809,public X-Google-Thread: 1108a1,b87849933931bc93 X-Google-Attributes: gid1108a1,public X-Google-Thread: 103376,b87849933931bc93 X-Google-Attributes: gid103376,public From: Rolf Breuning Subject: Re: Static vs. Dynamic typing again (was Re: OO, C++, and something much better!) Date: 1997/01/23 Message-ID: <32E7E51A.516E@post.rwth-aachen.de>#1/1 X-Deja-AN: 211788472 references: <32DF458F.4D5C@concentric.net> <32DF94DC.6FF8@watson.ibm.com> <32DFD972.37E4@concentric.net> <32E4FC5B.242C@watson.ibm.com> <32E6862D.608B@parcplace.com> <32E764D0.23D9@calfp.com> <32E7A686.56D@parcplace.com> <32E7BD57.2558@calfp.com> content-type: text/plain; charset=us-ascii organization: Aachen University of Technology / Rechnerbetrieb Informatik mime-version: 1.0 reply-to: breu@eecs.rwth-aachen.de newsgroups: comp.lang.smalltalk,comp.lang.eiffel,comp.lang.ada,comp.object x-mailer: Mozilla 2.02E (OS/2; I) Date: 1997-01-23T00:00:00+00:00 List-Id: Richie Bielak wrote: > > Eric Clayberg wrote: > > > > Richie Bielak wrote: > > > but static typing _proves_ absence of certain kinds of errors. > > > > That's all well and good, but if the percentage of those kinds of errors > > is absurdly low in your application to begin with, it doesn't buy you > > very much. > What also wanted to say in my previous post is that static typing > proves that there is no call in the program that will cause > the "message not understood" error. > > Is the chance of this kind of error "absurdly low"? Yes, it is, if you don't count sending messages to nil. [ I've been programming in Smalltalk for over 6 years now. As Eric stated, the usual reason for a "message not understood" is a message send to nil ] ********************************************************************** * Rolf Breuning breu@eecs.rwth-aachen.de * * Bahnhofstr.7 using OS/2 Warp 4 * * D-52064 Aachen - standard disclaimer - * **********************************************************************