From owner-freebsd-questions@FreeBSD.ORG Thu Jul 17 18:21:30 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CFB2C37B401 for ; Thu, 17 Jul 2003 18:21:30 -0700 (PDT) Received: from out003.verizon.net (out003pub.verizon.net [206.46.170.103]) by mx1.FreeBSD.org (Postfix) with ESMTP id E98EF43FB1 for ; Thu, 17 Jul 2003 18:21:29 -0700 (PDT) (envelope-from cswiger@mac.com) Received: from mac.com ([141.149.47.46]) by out003.verizon.net (InterMail vM.5.01.05.33 201-253-122-126-133-20030313) with ESMTP id <20030718012129.NQOT4805.out003.verizon.net@mac.com> for ; Thu, 17 Jul 2003 20:21:29 -0500 Message-ID: <3F174B93.3020706@mac.com> Date: Thu, 17 Jul 2003 21:21:23 -0400 From: Chuck Swiger Organization: The Courts of Chaos User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 X-Accept-Language: en-us, en MIME-Version: 1.0 To: freebsd-questions@freebsd.org References: In-Reply-To: X-Enigmail-Version: 0.76.1.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Authentication-Info: Submitted using SMTP AUTH at out003.verizon.net from [141.149.47.46] at Thu, 17 Jul 2003 20:21:29 -0500 Subject: Re: A couple of definitions X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Jul 2003 01:21:31 -0000 LLeweLLyn Reese wrote: > "Lin Jianfong" writes: >>As far as I know, objective C is sort of ancestor to C++, > > Not an ancestor. Objective C and C++ were seperately developed, in > different parts of the C community, and so far as I know there was > little or no communication or cross-fertilization. Your description is pretty decent; Objective-C came from a company called Stepstone, IIRC, and as you said, owed a lot to SmallTalk. > (Well, there > is a creature called 'Objective-C++', but I don't know much about > that, though I get the impression it is little used.) The primary purpose of Obj-C was to enable code to create interface classes between a C++ framework (say, a library for complex math operations) and Obj-C objects used by NEXTSTEP (Cocoa, GNUstep, etc) app-- such as a GUI app written using ProjectBuilder and InterfaceBuilder. -- -Chuck