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Bjarne Stroustrup on the Problems With Programming

Hobart writes "MIT's Technology Review has a Q&A with C++ inventor Bjarne Stroustrup. Highlights include Bjarne's answers on the trade-offs involved in the design of C++, and how they apply today, and his thoughts on the solution to the problems. From the interview: 'Software developers have become adept at the difficult art of building reasonably reliable systems out of unreliable parts. The snag is that often we do not know exactly how we did it.'"

7 of 605 comments (clear)

  1. Problems with Programming by pchan- · · Score: 5, Insightful

    I wouldn't take programming advice from a guy who overloads the bit-shift operator to perform I/O.

  2. Code Structure vs. Function by Salvance · · Score: 5, Insightful
    Bjarne says:
    Think of the Mars Rovers, Google, and the Human Genome Project. That's quality software
    but then goes on to say:
    On the other hand, looking at "average" pieces of code can make me cry. The structure is appalling, and the programmers clearly didn't think deeply about correctness, algorithms, data structures, or maintainability
    I doubt he has seen the code to the Mars Rovers, Google, or many other applications that he/we consider quality. He's judging it based on the software's function. If we were to judge software purely on how it worked, quite a bit of software could be considered quality. But if you were to look at the same software's code, you'd probably "cry" like Bjarne. Look at Firefox. That is a Quality application, but programmers I've spoken to said the code is a mess.
    --
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  3. "On the other hand, ..." by TransEurope · · Score: 5, Insightful

    "...looking at "average" pieces of code can make me cry. The structure is appalling, and the programmers clearly didn't think deeply about correctness, algorithms, data structures, or maintainability."

    Maybe it's because the average programmer is enslaved in company business. They don't have the
    time to create masterpieces or art in programming. Instead of that they are forced to create
    something adequate in a given time. Happens almost everytime, when science becomes business.
    I don't like that, you don't like that, no one likes that, but that's the way commercial industries
    are working (at the moment).

  4. Re:In my experience... by Garridan · · Score: 5, Insightful

    VB is a rapid prototyping environment. And just like an RP machine, it makes a flimsy product that you can send back to the drawing board without much expense. But you don't ship a product you've made on an RP machine -- it's crap. You take your prototype, and make a real product out of it using sturdy materials. Same goes for VB. You make something that works the way you expect, then you make it work in a real language. Good thing about VB is that you can replace pieces at a time with DLLs compiled from C++. If that isn't a part of the VB curriculum, it's a waste of time.

  5. Re:Its crazy by EvanED · · Score: 5, Insightful

    C++ is like a sharp scalpel. Yes you can hurt yourself if you're unskilled, inexperienced or sloppy

    "C++ gives you enough rope to shoot yourself in the foot"

    Java and C# are like those scissors with rounded ends for kids. Totally inefficent but safe for beginners.

    I'm not convinced of the "totally inefficient" bit. I think you'd be pressing it to do time-critical systems (indeed, current GC is more or less incompatible with realtime systems), OSs, etc., but I'm not convinced that they're not just fine for applications. This especially applies to C#, because C# GUIs are actually responsive. (Swing and to a lesser extent SWT lag a little.)

    But there's a reason why surgeons don't use plastic scissors.

    There's also a reason carpenters don't use scalpels. It's because different tools are good for different jobs.

  6. Re:In my experience... by $pearhead · · Score: 5, Insightful

    I disagree. Programming isn't something you learn from someone else. Programming is something you learn by yourself. Of course, you can get excellent help/lectures/tips/advice/insights/whatnot at an university for example, but my point is that in the end you have to sit down and think and then write some code (and figure out why it doesn't work) by yourself. I would say it doesn't matter if you start with Visual Basic or Pascal; if you haven't got the ambition/derive/whatever to really sit down by yourself and figure things out, you will never be a (good) programmer.

  7. Re:In my experience... by Flodis · · Score: 5, Insightful
    VB is a rapid prototyping environment. And just like an RP machine, it makes a flimsy product that you can send back to the drawing board without much expense. But you don't ship a product you've made on an RP machine -- it's crap. You take your prototype, and make a real product out of it using sturdy materials. Same goes for VB. You make something that works the way you expect, then you make it work in a real language. Good thing about VB is that you can replace pieces at a time with DLLs compiled from C++. If that isn't a part of the VB curriculum, it's a waste of time.
    Sigh... To me, this sounds like a typical rant from someone who doesn't have any actual experience.

    Anyway... I think the problem may be that VB is too easy to use. People who would not be able to write the makefile for their 'Hello World' program in C++, are able to write working but very rickety/ flimsy VB programs.

    I happen to make a living as a computer consultant. This means I get to see a lot of different organizations and their in-house software... This means a LOT of VB code... And of that VB code, a lot (maybe 90%) is written by people who may know their business but don't have a clue about programming. I can definitely see how that would create the reputation that VB programmers are bad, but not how it makes the LANGUAGE bad.

    As for stability, I can promise you that some of my VB programs are a hell of a lot stabler than the memory-leaking SEGF/GPF-ing C++ hacks they replaced. In case you didn't know - it's perfectly possible to write shitty C++ code too. It's just that you have to get above a certain level to even get the compiler to work, so most of the would-be self-made computer wizards turn to something easier instead.. Like VB.

    The big question here is: Is it better to have a flimsy but functioning VB program or a defunct makefile? I'm not sure of the answer myself. A defunct makefile is a 5-minute job to fix, whereas some of the VB messes I've seen would literally take years to get straightened out. (I hate people who think they can program just because their $h!+ compiles.)