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Bjarne Stroustrup - The Essence of C++: With Examples in C++84, C++98, C++11, and C++14

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C++11 is being deployed and the shape of C++14 is becoming clear. This talk examines the foundations of C++. What is essential? What sets C++ apart from other languages? How do new and old features support (or distract from) design and programming relying on this essence?

I focus on the abstraction mechanisms (as opposed to the mapping to the machine): Classes and templates. Fundamentally, if you understand vector, you understand C++.

Type safety and resource safety are key design aims for a program. These aims must be met without limiting the range of applications and without imposing significant run-time or space overheads. I address issues of resource management (garbage collection is not an ideal answer and pointers should not be used as resource handles), generic programming (we must make it simpler and safer), compile-time computation (how and when?), and type safety (casts belongs in the lowest-level hardware interface). I will touch upon move semantics, exceptions, concepts, type aliases, and more. My aim is not so much to present novel features and technique, but to explore how C++’s feature set supports a new and more effective design and programming style. 

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  • Will Going Native 2013 be streamed live like it was last year?

  • CharlesCharles Welcome Change

    @rdwells: Yes. It will stream live on the C9 homepage. We will take questions from the virtual audience, as well, although at a lower priority than the attendees in the room.

    C

  • Michael PriceMichael Price

    When will the live stream get going? Promptly at 9:00?

  • CharlesCharles Welcome Change

    @Michael Price: Yes...

    C

  • spasticDspasticD

    Are these being recorded and uploaded somewhere for those who are unable to attend the live event/stream?

  • CharlesCharles Welcome Change

    @spasticD: Yep. The videos will appear right here (on this event site on C9...).
    C

  • JacobJacob

    How long will the lag between live and the recording being posted be? Trying to plan a C++ party for tonight or tomorrow :)

  • Patel SanniPatel Sanni

    I am waiting

  • Click the Channel 9 icon at the top of the page to get to the live video.

  • courtcourt

    I believe the question was whether or not you had a ballpark estimate of the amount of time that will lapse between the completion of the real time talk and the availability of the recording. I am curious as well because, due to work, I was unable to watch the talks live with the exception of the tail of Jim's speech. If that was any indication of the relevance of this material then the sooner the better the better!! Not rushing you guys... just curious. -c

  • I believe the question was whether or not you had a ballpark estimate of the amount of time that will lapse between the completion of the real time talk and the availability of the recording. I am curious as well because, due to work, I was unable to watch the talks live with the exception of the tail of Jim's speech. If that was any indication of the relevance of this material then the sooner the better!! Not rushing you guys... just curious. -court

  • CharlesCharles Welcome Change
    Hi all, 24-48 hours after the event is typically the ballpark. C
  • Dorin Lazărdorinlazar Dorin

    @Charles: Looking forward to it. I managed to miss the keynote from Bjarne, and it went downhill from there.

  • i wanna see it too, I don't really do much with C++ but I find some of these talks interesting.  Im considering trying some of these new tools and spending some time to learn it now Tongue Out.  Anyone tried the newish C++ interpreters Cling or Cint from CERN?  is it anything like a python interpreter?

  • Frantically pressing F5 doesn't seem to make the video come up faster. Likely a Channel 9 bug Wink

  • Awesome, here come the downloads! Smiley Its offline grokking time! Smiley

  • JoshJosh

    I managed to watch the talks live on Day 3, I missed the rest of the talks. I have been waiting eagerly to watch them all, most especially Sean Parent's talk. It's been making airwaves on Twitter since the beginning of Going Native. Thanks guys.

  • linclinc

    IS there have PPT?

  • Concepts will change my life

  • Saeed Amrollahi BoyoukiSaeed Amrollahi Boyouki

    Awesome like always. Thank you Bjarne.
    -- Saeed Amrollahi

  • Dear Channel9 staff, High Quality WMV download link is broken. Please fix it.

  • @01:33:00 concerning efficient string handling: you can build a "constant string reference" class using constexpr and variadic char templates that at compile time can: get the string length; concatenate strings (no concatenation is actually done it's just a type); iterate over the string etc. This has already been done in production code! Maybe it could be a TR for C++14, once standardized it will be the nail in the coffin for null-terminated C strings.

  • Great talk.

    I would like to know more about cost of virtual functions vs generics, what are the estimates in typical scenarii, when is it really prohibitive, are there simple rules of thumbs that one can use.

    Also why isn't there any talk from Alexander A. Stepanov in Going native? Scheduling conflict? Not interested? I am wrong in thinking he is still actively involved in c++?

     

  • Going Naïve'13 Angel

     

  • DxtrDxtr

    Does the footer actually read "Going Naive'13" or is that due to the bad resolution? (Or was it intentional perhaps?)

    Still, awesome talk :)

  • Golnazgolnazal HEY HEY HEY

    @Dxtr: there was a typo on his decks. Herb Sutter jokingly mentions it in his talk.

  • BobBob

    The word excellent was used 3 times by the Microsoft guy in less than 30 seconds... I think he needs a dictionary.

  • IshanIshan

    does anyone know the link for Palo Alto TR (STL algo details) ?

  • @Ishan:The "Palo Alto TR" was the result of a workshop to revisit the design for Concepts after the feature was cut from C++11. The resulting paper can be found here <http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3351.pdf>.

  • I wonder how many times a day this guy has to shout "no you fracking idiot!!!!! you're doing it wrong!"  I know it has no relevance... he just looks the sort that when you mess with his baby.. he gets really peeved

  • CharlesCharles Welcome Change

    1

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