CppCon 2017: Bjarne Stroustrup “Learning and Teaching Modern C++” 

Egoless teaching is so important! I love the fact that he touched on it!

I started learning programming in high school, but it was always simple maths or sorting algorhytms. At the university I started learning PRACTICAL programming on microcontrollers, databases or GUIs, and only then I got an understanding of how everything works. You have to have a purpose, otherwise it's useless and you'll probably forget everything anyway.

I can listen to him talk all day! Great presentation.

Thanks Bjarne for this video. Even at age 62 I still find myself as a Student. I am old C programmer and I found myself stuck on a problem and your advice on this video helped me guide in solving a coding problem. It does help to review the programming tools you use. Thanks again.

let's hope for the bright future of C++

1:29:00 I as someone how programs now for just over a year, can approve of this. At school, we don't do pointers or anything decently close to the hardware, which results that my classmates have a hard time getting arrays, classes etc. I taught myself basic (and with basics I mean just the basics) of C and a bit of C++, resulting in understanding other things actually quite quickly. Also, when we did arrays (after about 2 weeks of doing them some still didn't get it) I explained them what a pointer is and how things are saved in RAM (and what references are)...afterwards they understood it and all of that took about 30min... Please, to all teachers, don't start with object-orientated programming (which includes Java in general), if your students have never written even one line of code. They will just go and ask "What does public mean?", "What does class mean?", ... and because they are at a state where they don't even know what "if" means, they will just have either an information overload, or think of you (as a person) poorly (the latter is probably the worst which could happen btw, especially my generation will just make a fool out of you in such cases like this, but in a way you can barely punish them for it). Just start procedural (C is actually a good choice because you can teach them basic abstractions, if you write an own library you can also do VBA in for example Excel (drawing lines up and down, left and right to be exact). But for your students sake don't start object-orientated, most either will look stuff, where you say "You don't need to know that for now.", up anyway after class (and have a information overload) or drop out after some times (mostly because they are fed up with it, they don't want to feel treated like a child).

This man is so knowledgeable, and I could listen for hours.

His accent and calm & expressive presentation made it really easy to concentrate for 1 1/2 hours. Contrary to my uni lectures where I doze off after 15 minutes

"One of the problems with education, by the way, is that the previous occupation of most professors was student, and that, I don't think is just the right background for teaching people how to do". Finally someone to back me up.

I got inspired to use C++ again instead of rust.

I swear all programmers must watch his speeches, also this video too. He knows the wrong of all the books and lectures that teach only syntax. That's why half of students who majoring in CSE know syntax, but had problem on programming, at least in my country.

Enlightening way beyond the technical scope of the presentation.

I started a club which uses the Raspberry Pi platform to teach coding to my peers in school after listening to this talk.

CppCon 2017 YAY!!!

1000% greatest of all time. Pure REAL humbleness and passion. If only more ppl were like him society would be much better. And man why is nobody laughing at his jokes 🙁🙁 he’s so funny, good jokes without being annoying and straight to the point😂😂Thank u for sharing!!

The cpp I learned in school, and that I used in my first job, was largely on the cpp98 standard. Even though I started college 2015 lol. This introduced me to a lot of nice, new features of the language.

Been waiting all week for these.

Love his goofy and dry humor. I think that not just for C++, but every Computer Science/Engineering professor should watch this vid so that they would suck less.

1:29:30 Couldn't agree more. The fundamentals are of CRITICAL importance; if, as Mr. Stroustrup said, for nothing more than to appreciate, we do not necessarily need to be make those mistakes all over again.

Damnit, I am in Seattle right now. I want to go to CppCon so bad! :(

Thank u stroustrup. Art for programmers.

I'm teaching 7 of my friends and this is exactly what I have been looking for. I've been trying to teach through the experience of fun stuff rather than nitpick stuff

There is a new series coming from CrashToSmash Modern C++ . Hope that covers latest features

1:30:40 It is a difficult thing to comprehend for someone younger, I think it comes with age, and a bit of learned wisdom over the years. We don't know what we don't know. Does not mean the problem defies solution or cannot be solved; but there may already be a solution out there just waiting to be "found".

In school we used java for programming, and we never touched stuff of the standard library. Instead we spent most of the time to learn about and implement linked list and other similar data structures in an inefficient, object oriented, non-generic style based on inheritance.

... and hey the teachers on the internet, especially the guys, it is not a head start ..... thats the best thing about you guys ... it is head first!! (Rufus, that makes two of us ) ...:-)

The only courses, where I had to use C++ at university was about graphics programming and OpenGL

As a physicist I took introductory cpp course and then took computational physics course in python, its so easy to start working in guis using python simply import tkinter numpy matplot libraries...etc anything i wish to install just pip install...i wanted to try wxwidgets in cpp using code blocks, its really hard to set up !

55:44 Yes, INDEED! In fact, not only have I cast the PERIOD, but also at times the REPRESENTATION! ABSOLUTELY!

"Nobody can do everything... but do something.."

~ 1:33:00 the question about the smart person in the room is to ask them to independently research it and present in 10 minutes. They'll opt-out at the next class

Did anyone start such a library? I would be really interested to contribute!

Damn this guy is flatly amazing

One of the biggest risks in a development project is what I call "Swelled Head Syndrome"...where a programmer writes something that is simply cool/intricate...but you could have written it much simpler. I've been guilty for sure!

I like this!

what an amazing guy...

I think the Unity engine is a great tool for teaching programming. It doesn't have to specifically be a video game application, but Unity is simple enough to add 2D sprites and create an interesting simulation without having to go over the details of how Unity is making everything work. If I ever teach an intro to programming course, I would probably use a tool like Unity where I would first start off with 2D applications, and I'd try to generalize things without going into too much detail. Although Unity provides C#, JavaScript and Boo, and not C++, my goal would be to teach students to see a language as a tool; rather than using one language over all others because it's "easier to learn". A good programmer isn't someone who is really good at one language, or even someone who is better than everyone at using C++ (whatever that means). A good programmer is someone who is willing to help others who are struggling with problems to think through their code and figure out the bugs, no matter what their skill level, as well as seek help when necessary. We can't know everything, life is too short for that.

The topic doesn't matter. if Bjarne stroustrup is presenting, I have to watch.

I would love the opportunity to meet Bjarne.

We are all teachers, we are all students :)

We can. Please update programming. For me.

I can't find the slide by following the link in the description.

What's book he means?

cant wait to learn the new c++20 and read your new books... I got nothing else to do! lol

24:50 OHhh, that's very importante moment.

Can somebody link me to the part where he talks about range for loops and why are they better ? Thank you

28:40 is soooo relate-able

thanks bjarne 🙂

Can someone help out: Dr Bjarne in his book "A Tour of C++" says: "Interface inheritance: An object of a derived class can be used wherever an object of a base class is required. That is, the base class acts as an interface for the derived class." Is this really what he meant? Shouldn't not be: the derived class acts as an interface to base class ?

Amen to the build and package system. My job as a sysadmin for a HPC cluster involves building tons of scientific software. Save for a handful of relatively well behaved codes, it's a total crapshoot of build methods, compile time options/configurations, patching and hacking that keeps this fragile mess together.

is Bjarne writing any new books?

I currently have a professor for a couple programming centric classes, and it seems he watched this video, and decided to purposely do the opposite of what is suggested here 😂 although I suppose that the archetype described here is a result of many professors choosing to teach in this way.

which Swan book is he talking?

Smartest man of computers.

Imagine he teaches me C++... I will never quit

All we know c++ is the best. i can program from chips to workstations or gpu farms with c++ language.

What's swan book?

Any recommendations for a good simple GUI or gaming library to teach kids C++?

He is right about people think its a good thing to not understand how the underlining system works or how the library works. especially people that write web stuff most annoying people i've met .

Guy trying to teach his daughter probably got triggered hard when Bjarne suggested what he needed was a library targeted at "non-CS majors".

Cant imagine filling out paper made by the creator

46:00 so true.

Basics

Cross-Platform network programming please... 😍

Imperial Units don't even suck!

53:53 I use this case study ALL-THE-TIME, as a $300M (or something like that) program that UTTERLY FAILED, literally BURNED UP in the Mars atmo, all on account of what? A stupid UNIT CONVERSION ERROR somewhere between ground control and one of the integrated APIs. That so say: I like to learn from my industry's and forebears mistakes. 55:00 I'm not sure I TOTALLY agree they didn't deliver ANYTHING. They delivered this: how you MUST be PRECISE, in not only VALUE, but also in UNITS OF MEASURE. It's like saying to someone; see you in a few. A few what? Nanoseconds?

It should always be as easy as ./configure make make install

Goethe, nietzsche wagner. c++ java

By the way, here is my C++11 super easy, very convenient, header only library for random (wrapper over C++11 stuff) github.com/effolkronium/random

I'm not keen on the packaging idea, cpan and pip already trample my OS package manager

Cout is frensh

French and c++ learn about cout.

I cant say it if is a glass ceiling or stake out in the opposite building really ...I'd go with the glass celing :-) Teachers over the internet really get you started and leave you respectful at them, their compassion, motivation and knowledge. But finally it is application....nice though ....the snoots pointing me to the Billionaire's Pledge are trolleys ...... leave me hell and priority jiffy .....:-) ... why is that one looking at me?

AND THAN U RIDE!!!!!

c++ as c with programming skills.

Time Just time

C++ : we should be as simple as possible Also C++ : yeah so that's a const pointer to a const value but things change given the position of the damn asterisk and good luck with that

I need to say it.. today, education on University is making student some lazy, those high level language programming they are using to teach do not convinced me, I think a true engineer NEEDs to dominate C or C++, this language is not dead, is growing a lot, is so much important...

I watch this talk and I'm again thinking that I know nothing about C++.

I do think C++ should just get completely overhauled and re-written with all the best features thus far included, with easy support for additional features in the future, and an easy way to add or subtract libraries, perhaps through 'packages' or whatever they decide to call it. It's unlikely the very low level mechanics of computer programming are going to change, only the speed of hardware and quantity of memory, unless quantum computing actually takes off, of course. :D

I fucking love him! I wish I was his son!

Goethe

Why should we learn to use IDEs? I don't really like IDEs. Most are not that good, I think.

Topology book. RAII the book people. READ A TOPOLOGY BOOK!!!!!

1:05:18 Criticizes unsafe bloatware and asserts that »the world« won’t accept unsafe bloat - yet, uses Microsoft as guide, positive example and reference. *smh* (Edited to add: gave the video a thumbs-up because of valuable rules mentioned.)

Robots soon. Shittt. wat een strijd.

I feel I ruined myself studing in university. The last year !! cmon I can finnist it.. But already 25yo and know so less :"(

i think i'll wait til im bald on top and hair on the back before i attempt learning C++

In my experience C++ is in most cases much too complicated to solve a user-centered-problem. And this talk shows, that it is a language from the past. If you have ever used other languages and you see how easy it is to get a library and install it and it works on any OS/Architecture. In C++ everybody tends to solve each problem again, as it is too hard to build a libary, which depends on other libraries without having issues, when updating libraries to a new version or having conflicts. Don't get me started about static vs shared, debug symbols, conventions for naming of header files etc. Now take a look at JavaScript: If you start a simple Angular4 project you already have a project which automatically downloads and updates >1000 NPM libraries from the Internet, without any problems. (Each library sometimes contains only a few small classes/functions which solve one problem, e.g. array-egal github.com/component/array-equal or content-type-parsing www.npmjs.com/package/content-type-parser ) Every modern programming language has a good packaging/build system (which is also supported by local artifact servers like nexus/artifactory): - JavaScript / TypeScript etc. -> NPM / Bower www.npmjs.com/ - Python -> PyPi - GoLang -> GoPM etc. github.com/golang/go/wiki/Projects - Java/Scala/Kotlin/Groovy -> Maven, Gradle, SBT, Ant, Ivy mvnrepository.com/ - C# -> NuGet www.nuget.org/packages - Dart -> Pub pub.dartlang.org/packages - Julia -> Julia PDK pkg.julialang.org/ - Perl -> CPAN - Lua -> LuaRocks luarocks.org/ see www.modulecounts.com/ For C++ there is: - CMake, which is really helpful but also some kind of workaround - Conan, which is in a very early state: Most of the libraries you find there are only working on windows OR linux, not all compiler flags work etc. - OS specific versions: e.g. apt-get, brew or vcpkg by Microsoft - The developers of C++ libraries tend to make it very hard for the user to use it. They don't provide Conan / VCPKG packages. So my advice for everyone: Make sure, that you really need C++ to solve your problem (e.g. CUDA stuff) or if you could use another language. Performance of JIT compiled languages can be very good as well especially without performance tuning knowledge.

С++ and GUI? I don't think they are from the same World. Qt is lame. I would use for it C#, JS whatever, but not C++!

C++ is complex and confusing. There are several reason as follow:- 1. To do same Task 10 million option available. 2. Traditional thinking .. delete keyword cause for memory leak so Why u not remove this from C++ compiler.

insaniteit.

...a man should have a purpose in life ... lmao .....

Apollo was smarter than ur teacher. MEDITATIE AAN APOLLO!!!

1:36:20 damn she's hot! o_o Tell me more about Bash Films please o_o

Unfortunately C++ uses the same messimporting system like C do. I have to waste too much time on this preprocessor-include bullshit. Especially if I split files in header and source. In my opinion Stroustrup and co should take a look at Python importing system. Ofc it's not the best compare. But that signals that preprocessor can be a pain in the ass to deal with. Instead of focusing in coding.

Numpy more or less negates all fears of python being slow, and means you don't have to spend half your damn time writing idiotic boiler plate code, as you must do in C++!

这丹麦口音听的好辛苦啊，还各种停顿。要有人工翻译，有大佬出资就好了。

C++ needs to retire and make way for Rust. Sorry, but it has been resuscitated four times at least and now has admittedly, even by the original author’s standard, become too complicated to reasonably understand best practice even for a well motivated college level student. Still dangling pointers, ownership, and multi threading all are problems, not to mention the build system, and a well defined repository of modules or libraries. Just stop writing fresh C++ people. Maintain it if you must, but learn Rust and live better lives.

What's with Bjarne's obsession with GUIs? Anyone uses a GUI to install Python, JavaScript, Haskell packages? Anyone uses a GUI to build Cmake projects? You can, but it's much easier done from the command line. Besides, you learn a thing or two while doing it "the hard way." If you want GUIs go with Microsoft products. They have it covered. You won't learn anything beyond clicking GUI buttons though.