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fido7.su.softw > ðÒÁ×ÄÁ Ï C++
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Victor V. Metelitsa
25 Нояб. 1999 14:00   Показать параметры
Группы новостей: fido7.su.softw
От: "Victor V. Metelitsa" <Victor.V.Meteli...@f13.n5077.z2.fidonet.org> - Поиск сообщений этого автора
Дата: 1999/11/25
Тема: ðÒÁ×ÄÁ Ï C++
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:-)
   Gotta be a spoof, but amusing none the less...

   On the 1st of January, 1998, Bjarne Stroustrup gave an interview
   to the IEEE's 'Computer' magazine.

   Naturally, the editors thought he would be giving a retrospective
   view of seven years of object-oriented design, using the language
   he created.

   By the end of the interview, the interviewer got more than he had
   bargained for and, subsequently, the editor decided to suppress its
   contents, 'for the good of the industry' but, as with many of these
   things, there was a leak.

   Here is a complete transcript of what was was said, unedited, and
   unrehearsed, so it isn't as neat as planned interviews.

   You will find it interesting...

   __________________________________________________________________

   Interviewer:  Well, it's been a few years since you changed the
           world of software design, how does it feel, looking back?

   Stroustrup:  Actually, I was thinking about those days, just before
           you arrived. Do you remember?  Everyone was writing 'C'
           and, the trouble was, they were pretty damn good at it.
           Universities got pretty good at teaching it, too. They were
           turning out competent - I stress the word 'competent' -
           graduates at a phenomenal rate. That's what caused the
           problem.

   Interviewer:  Problem?

   Stroustrup:  Yes, problem. Remember when everyone wrote Cobol?

   Interviewer:  Of course, I did too

   Stroustrup:  Well, in the beginning, these guys were like demi-gods.
           Their salaries were high, and they were treated like royalty.

   Interviewer:  Those were the days, eh?

   Stroustrup:  Right. So what happened?  IBM got sick of it, and
           invested millions in training programmers, till they were a
           dime a dozen.

   Interviewer:  That's why I got out. Salaries dropped within a year,
           to the point where being a journalist actually paid better.

   Stroustrup:  Exactly. Well, the same happened with 'C' programmers.

   Interviewer:  I see, but what's the point?

   Stroustrup:  Well, one day, when I was sitting in my office, I
           thought of this little scheme, which would redress the
           balance a little. I thought 'I wonder what would happen, if
           there were a language so complicated, so difficult to learn,
           that nobody would ever be able to swamp the market with
           programmers?  Actually, I got some of the ideas from X10,
           you know, X windows. That was such a bitch of a graphics
           system, that it only just ran on those Sun 3/60 things.
           They had all the ingredients for what I wanted. A really
           ridiculously complex syntax, obscure functions, and
           pseudo-OO structure. Even now, nobody writes raw X-windows
           code. Motif is the only way to go if you want to retain
           your sanity.

   Interviewer:  You're kidding...?

   Stroustrup:  Not a bit of it. In fact, there was another problem.
           Unix was written in 'C', which meant that any 'C' programmer
           could very easily become a systems programmer. Remember
           what a mainframe systems programmer used to earn?

   Interviewer:  You bet I do, that's what I used to do.

   Stroustrup:  OK, so this new language had to divorce itself from
           Unix, by hiding all the system calls that bound the two
           together so nicely. This would enable guys who only knew
           about DOS to earn a decent living too.

   Interviewer:  I don't believe you said that...

   Stroustrup:  Well, it's been long enough, now, and I believe most
           people have figured out for themselves that C++ is a waste
           of time but, I must say, it's taken them a lot longer than I
           thought it would.

   Interviewer:  So how exactly did you do it?

   Stroustrup:  It was only supposed to be a joke, I never thought
           people would take the book seriously. Anyone with half a
           brain can see that object-oriented programming is
           counter-intuitive, illogical and inefficient.

   Interviewer:  What?

   Stroustrup:  And as for 're-useable code' - when did you ever hear
           of a company re-using its code?

   Interviewer:  Well, never, actually, but...

   Stroustrup:  There you are then. Mind you, a few tried, in the
           early days. There was this Oregon company - Mentor
           Graphics, I think they were called - really caught a cold
           trying to rewrite everything in C++ in about '90 or '91. I
           felt sorry for them really, but I thought people would learn
           from their mistakes.

   Interviewer:  Obviously, they didn't?

   Stroustrup:  Not in the slightest. Trouble is, most companies
           hush-up all their major blunders, and explaining a $30
           million loss to the shareholders would have been difficult.
           Give them their due, though, they made it work in the end.

   Interviewer:  They did?  Well, there you are then, it proves O-O works.

   Stroustrup:  Well, almost. The executable was so huge, it took
           five minutes to load, on an HP workstation, with 128MB of
           RAM. Then it ran like treacle. Actually, I thought this
           would be a major stumbling-block, and I'd get found out
           within a week, but nobody cared. Sun and HP were only too
           glad to sell enormously powerful boxes, with huge resources
           just to run trivial programs. You know, when we had our
           first C++ compiler, at AT&T, I compiled 'Hello World', and
           couldn't believe the size of the executable. 2.1MB

   Interviewer:  What?  Well, compilers have come a long way, since then.

   Stroustrup:  They have?  Try it on the latest version of g++ - you
           won't get much change out of half a megabyte. Also, there
           are several quite recent examples for you, from all over the
           world. British Telecom had a major disaster on their hands
           but, luckily, managed to scrap the whole thing and start
           again. They were luckier than Australian Telecom. Now I
           hear that Siemens is building a dinosaur, and getting more
           and more worried as the size of the hardware gets bigger, to
           accommodate the executables. Isn't multiple inheritance a joy?

   Interviewer:  Yes, but C++ is basically a sound language.

   Stroustrup:  You really believe that, don't you?  Have you ever sat
           down and worked on a C++ project?  Here's what happens:
           First, I've put in enough pitfalls to make sure that only
           the most trivial projects will work first time. Take
           operator overloading. At the end of the project, almost
           every module has it, usually, because guys feel they really
           should do it, as it was in their training course. The same
           operator then means something totally different in every
           module. Try pulling that lot together, when you have a
           hundred or so modules. And as for data hiding. God, I
           sometimes can't help laughing when I hear about the problems
           companies have making their modules talk to each other. I
           think the word 'synergistic' was specially invented to twist
           the knife in a project manager's ribs.

   Interviewer:  I have to say, I'm beginning to be quite appalled at
           all this. You say you did it to raise programmers'
           salaries?  That's obscene.

   Stroustrup:  Not really. Everyone has a choice. I didn't expect
           the thing to get so much out of hand. Anyway, I basically
           succeeded. C++ is dying off now, but programmers still get
           high salaries - especially those poor devils who have to
           maintain all this crap. You do realise, it's impossible to
           maintain a large C++ software module if you didn't actually
           write it?

   Interviewer:  How come?

   Stroustrup:  You are out of touch, aren't you?  Remember the typedef?

   Interviewer:  Yes, of course.

   Stroustrup:  Remember how long it took to grope through the header
           files only to find that 'RoofRaised' was a double precision
           number?  Well, imagine how long it takes to find all the
           implicit typedefs in all the Classes in a major project.

   Interviewer:  So how do you reckon you've succeeded?

   Stroustrup:  Remember the length of the average-sized 'C' project?
           About 6 months. Not nearly long enough for a guy with a
           wife and kids to earn enough to have a decent standard of
           living. Take the same project, design it in C++ and what do
           you get?  I'll tell you. One to two years. Isn't that
           great?  All that job security, just through one mistake of
           judgement. And another thing. The universities haven't
           been teaching 'C' for such a long time, there's now a
           shortage of decent 'C' programmers. Especially those who
           know anything about Unix systems programming. How many guys
           would know what to do with 'malloc', when they've used 'new'
           all these years - and never bothered to check the return
           code. In fact, most C++ programmers throw away their return
           codes. Whatever happened to good ol' '-1'?  At least you
           knew you had an error, without bogging the thing down in all
           that 'throw' 'catch' 'try' stuff.

   Interviewer:  But, surely, inheritance does save a lot of time?

   Stroustrup:  Does it?  Have you ever noticed the difference between
           a 'C' project plan, and a C++ project plan?  The planning
           stage for a C++ project is three times as long. Precisely
           to make sure that everything which should be inherited is,
           and what shouldn't isn't. Then, they still get it wrong.
           Whoever heard of memory leaks in a 'C' program?  Now finding
           them is a major industry. Most companies give up, and send
           the product out, knowing it leaks like a sieve, simply to
           avoid the expense of tracking them all down.

   Interviewer:  There are tools...

   Stroustrup:  Most of which were written in C++.

   Interviewer:  If we publish this, you'll probably get lynched, you
           do realise that?

   Stroustrup:  I doubt it. As I said, C++ is way past its peak now,
           and no company in its right mind would start a C++ project
           without a pilot trial. That should convince them that it's
           the road to disaster. If not, they deserve all they get. You
           know, I tried to convince Dennis Ritchie to rewrite Unix in C++.

   Interviewer:  Oh my God. What did he say?

   Stroustrup:  Well, luckily, he has a good sense of humor. I think
           both he and Brian figured out what I was doing, in the early
           days, but never let on. He said he'd help me write a C++
           version of DOS, if I was interested.

   Interviewer:  Were you?

   Stroustrup:  Actually, I did write DOS in C++, I'll give you a demo
           when we're through. I have it running on a Sparc 20 in the
           computer room. Goes like a rocket on 4 CPU's, and only
           takes up 70 megs of disk.

   Interviewer:  What's it like on a PC?

   Stroustrup:  Now you're kidding. Haven't you ever seen Windows '95?
           I think of that as my biggest success. Nearly blew the game
           before I was ready, though.

   Interviewer:  You know, that idea of a Unix++ has really got me
           thinking. Somewhere out there, there's a guy going to try it.

   Stroustrup:  Not after they read this interview.

   Interviewer:  I'm sorry, but I don't see us being able to publish
           any of this.

   Stroustrup:  But it's the story of the century. I only want to be
           remembered by my fellow programmers, for what I've done for
           them. You know how much a C++ guy can get these days?

   Interviewer:  Last I heard, a really top guy is worth $70 - $80 an
           hour.

   Stroustrup:  See?  And I bet he earns it. Keeping track of all the
           gotchas I put into C++ is no easy job. And, as I said
           before, every C++ programmer feels bound by some mystic
           promise to use every damn element of the language on every
           project. Actually, that really annoys me sometimes, even
           though it serves my original purpose. I almost like the
           language after all this time.

   Interviewer:  You mean you didn't before?

   Stroustrup:  Hated it. It even looks clumsy, don't you agree?  But
           when the book royalties started to come in... well, you get
           the picture.

   Interviewer:  Just a minute. What about references?  You must
           admit, you improved on 'C' pointers.

   Stroustrup:  Hmm. I've always wondered about that. Originally, I
           thought I had. Then, one day I was discussing this with a
           guy who'd written C++ from the beginning. He said he could
           never remember whether his variables were referenced or
           dereferenced, so he always used pointers. He said the
           little asterisk always reminded him.

   Interviewer:  Well, at this point, I usually say 'thank you very
           much' but it hardly seems adequate.

   Stroustrup:  Promise me you'll publish this. My conscience is
           getting the better of me these days.

   Interviewer:  I'll let you know, but I think I know what my editor
           will say.

   Stroustrup:  Who'd believe it anyway?  Although, can you send me a
           copy of that tape?

   Interviewer:  I can do that.

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