Kate Gregory's Blog

Yes, my C++ Precon will also be at Tech Ed North America

Kate Gregory — Thu, 12 Jan 2012 15:57:42 GMT

Perhaps not a great surprise, but today the precons for Tech Ed North America were announced and mine is there too. It's well described in the previous blog post and I'll be doing the same material at both events. So if Orlando, June 10th works better for you than Amsterdam, June 25th, terrific and I'll see you there! Registration is now open.

Kate

My C++ Precon at Tech Ed 2012 Amsterdam

Kate Gregory — Tue, 10 Jan 2012 01:29:14 GMT

Yay! Today I got news that registration is open for Tech Ed 2012 in Amsterdam, and with it confirmation that my preconference has been accepted! This is great news for anyone who loves C++, because it's a C++ all day preconference! The title is C++ in 2012: Modern, Readable, Safe, Fast and here's the abstract:

C++ is gaining momentum as a development language, so whether you’ve never used C++ or stopped using it a decade ago, it may be time to brush up on your skills. With a new standard release providing new keywords and capabilities, C++ is a featured language for many of the new Microsoft technologies and enables some amazing speed-ups of your application using libraries like PPL and C++ AMP. What’s more, Visual Studio offers tools to native developers that have only been available for managed developers in earlier versions. This all-day session will show you what all the fuss is about and give you the skills you need to understand the advantages of C++ today and how to start applying those benefits to your application.

Now, if you're an experienced and current C++ developer, you may not need to come to this session. But if you were thinking you needed a refresher, here's a great way to get one, and at the same time look at some of the cool new stuff that is available to you once you know C++. If you've never written a line of C++ code in your life, but you're solid in C# or Java so you know the basic syntax (if, while, etc) you should be able to follow this session, though it won't teach you all the fiddly bits of C++ syntax and make you a C++ developer from scratch. It should, however, give you the inspiration you might need to go and learn all that fiddly syntax, and understand why we have it. I am also hoping there will be a number of relevant breakout sessions you'll want to attend after getting a taste of what C++ developers can do, though we have to wait a little longer to find out about those.

I'm still working on the exact content, but my first draft outline looks something like this:

Modern C++ with the Standard Library (demo of strings, shared pointers)
Application Lifecycle Management for Visual C++ 11
Leveraging Lambdas for the PPL and C++ AMP
Best practices for C++ developers today

This is 9am - 5pm (all day) the Monday before Tech Ed Europe starts, June 25th. You can register for the precon and Tech Ed now. And tell your friends! I would love to see a TON of registrations to ensure continued C++ content at Tech Eds around the world.

Kate

PS: Yes, I know that Tech Ed US is a few weeks before Tech Ed Europe. You didn't miss the US announcement; you shouldn't have to wait much longer for it though.

Would you like an almost free Tech Ed Precon?

Kate Gregory — Wed, 21 Dec 2011 22:24:25 GMT

Work is underway on settling the agenda for Tech Ed, even though it's almost 6 months away. As Brandy explained a week ago or so, it starts with asking "the usual suspects" for session submissions. Tech Ed is a fairly closed conference - the call goes out to MVPs, RDs, some Microsoft employees and previous speakers. (How do you become a new speaker? Do a great job somewhere else first -Tech Ed is not a beginner's conference. The people who get the call for content can propose great speakers who didn't get the call.) Now they've announced the technical tracks, which gives you an idea of what you can expect to see covered. There are no huge surprises here: I'm most interested in Architecture & Practices, Developer Tools, Languages & Frameworks, Windows Client and Windows Phone.

What will be next? Announcing the precons. They've already announced the price: $400 if you're attending Tech Ed, and $500 if you're not. They'll say what the precon topics are in early January. But by then, the super early bird discount will have expired. That discount will save you $300. So registering now is like paying only $100 for the precon! If you can decide in January or February, when the precons are announced, you'll still save $200, so it's like your precon is half price. Either way, it's a great deal for a full day of deep training on something relevant to the kind of people who come to Tech Ed.

To be clear, I don't know what the precons are going to be. I will blog as soon as I know. But if you think there's a chance that spending a whole day with someone who really knows their stuff on a topic you need to know (especially one you never got around to learning and feel you should) would be worthwhile, then why not make it official, register for Tech Ed, and see what gets announced in January?

Kate

Pictures and identity

Kate Gregory — Sat, 17 Dec 2011 22:02:44 GMT

Pluralsight, for whom I've done a lot of courses, has revamped their website recently. That includes having drawings or sketches in a lot of places where you might expect photographs. Here's the one they've been using for me, next to the photo it was made from:

I definitely like the sketch better, but lots of people recognize the photo because it's one of the few I use in the various places people want pictures. I also have this one I use on my public Facebook page:

I am not sure any of these will help you find me in a crowd. That's one of the reasons that on my business card (and my Twitter profile) you'll see this one:

More than one person has had an "oh, that's who you are!" moment when I hand them my business card. Yup, that's me!

Kate

My C++ Fundamentals course, part 2

Kate Gregory — Thu, 15 Dec 2011 21:51:31 GMT

The second part of my C++ Fundamentals course is now live on the Pluralsight site. This one covers:

The Standard Library - string, collections, and the like
Lambdas - perhaps my favourite C++ 11 feature
Exceptions - every C++ developer needs to understand exceptions
Understanding Legacy Code - here's where you'll find out how C++ earned its reputation

These four modules build on the material I covered in part 1:

Context - to set the stage
Tools - Visual Studio and Visual Studio Express
Fundamental Types
User Defined Types
Flow of Control
Operators
Templates
Pointers
Pointers, Inheritance, and Polymorphism

One of the things I like best about this material is that char* strings and all the special cases to deal with them don't show up until the last module of part 2. Ditto the kinds of arrays you may have first learned. The kinds of gyrations C-style arrays and C-style strings put C++ programmers through are a large part of why people think C++ is hard. With std::string, std:vector, and other goodies from the Standard Library, C++ really isn't hard. Honestly!

Kate

My Using Visual Studio course, free

Kate Gregory — Thu, 01 Dec 2011 18:56:22 GMT

I'm in the middle of writing a number of SUPER COOL things that I will blog about as they finish. But interesting things happen even when I'm too busy to blog, and an interesting one happened today.

You know you should have a Pluralsight subscription, don't you? All the training you can watch (some of it by me) for as little as $29/mo? You can't go wrong. And if you're an MVP, or an RD, or a member of BizSpark, you don't even have to pay that! But if you don't have a free subscription and haven't paid for one yet, taking a free course is a great way to see what all the fuss is about.

Well, starting right now, you can do just that! Pluralsight and the Visual Studio folks are providing my Using Visual Studio course completely free. Just visit the Learn Visual Studio page at Microsoft and use the links. And if you like the course, consider getting a subscription - there are scores more that you will like.

My week at BUILD

Kate Gregory — Sat, 17 Sep 2011 20:42:01 GMT

Oh my goodness. What a week that was!

Here's how I thought I would do my first summary. Links to videos, discussions of sessions I either went to or tried to go to (more on that in a moment) along with my tweets from the ground, as it were.

My first real tweet Tuesday morning (8:37 California time) was announcing that my PluralSight C++ Fundamentals course had gone live. Then the keynote started. Here are my tweets and retweets along with the time into the keynote I said them:

6 minutes: #bldwin totally dominating my stream SS doing a good intro to lean back computing
37 minutes: RT @dseven WinRT API'S are natively built into Windows and built to reflect in different languages - C/C++ and .NET. #bldwin
42 minutes: Starting at 8PM today, Seattle time, you can download all of the code that attendees at BUILD received. t.co/nuTuwga
43 minutes: RT @wkrwk Did anyone notice the UI during the VSE 11 demo is the classic Windows UI? #bldwin
48 minutes: #bldwin VS vNext demo is breaking twitter = no hope of following it all
50 minutes: RT @andrewbrust Expression Blend is still Grey on Black. It could use a little "fast and fluid," frankly. #bldwin
51 minutes: Store menu in VS?? #bldwin #wholenewworld
58 minutes: RT @rhundhausen Desktop (#x86) apps can be listed in the #windows8 store as well #bldwin
61 minutes: RT @ayus :))) RT @timheuer The Red Shirt is dominant even when not present. #bldwin @scottgu
79 minutes, @EdgarSanchez retweeted @rickasaurus asking "I'm interested in hearing more about this new GPU offloading API. Any links? #bldwin" and I answered "Check my blog as the week goes on for GPU stuff"
80 minutes: RT @marypcbuk Sinofsky: that gaming PC looks like ice. Angiulo: more like lava, it converts 700w of power to 4.7 teraflops like 3,500 Cray XMPs #bldwinPlatform for Metro style apps
87 minutes: RT @Pete_Brown Dude just cracked open a laptop on stage and showed the electronics. Can't beat that #bldwin #geek
100 minutes: RT @andrewbrust When will we admit Sinofsky's doing a great job? He's working hard, not just presiding. #bldwin
120 minutes: RT @ronnipedersen If you have an iPad, don't watch the build keynote… It'll make you feel like you have bought a C64 #bldwin
127 minutes: RT @jonbrasted It is a great day to be a Windows developer. #bldwin #trbbuild

The download surprised me, I didn't think it would be ready for people to try on any old hardware. And the hardware demo was very very good. And sure, I was on instant messenger back to the office saying "it's official" when the rumour was finally confirmed that we were getting tablets. But mostly, I really liked what I saw and wanted to know more, which is what keynotes are all about.

After eating something completely unmemorable, I found my way to the overflow room, always a little more casual and a good place to find "the cool kids". I had already met a number of old friends in the huge keynote session and before it, but here were more. I'll just give you the links to the Big Picture sessions. They are all very good.

8 traits of great Metro style apps - a truly excellent session by a presenter who cares deeply about the topic. I tweeted a lot less during this one because it required more active listening.
Platform for Metro style apps - another very good session during which I just retweeted some other people's "Hey, this stuff is C++" reactions and a link to the session planner app for the phone, which I used heavily.

By this time people were starting to "get it" (including me) and the excitement level was rising. Here's just what I retweeted:

@coridrew #bldWin is really, really, really making me want to //BUILD/ Windows apps #BestConferenceNameEver #WhoKnew
@briannoyes Add ref from js project to C++ library - really empasizes this is running native #bldwin
+@fignewtron iPad limited in many ways to consumption - Windows 8 is production and consumption on many devices. Sales numbers decide winner. #bldwin
@mcakins Wow, the silence from Apple's camp is deafening! Windows rocks once more! Its 1995 all over again! #bldwin

One more session: Tools for building Metro style apps - I was getting tired at this point. It was a lot to take in. People were lined up the length of the convention centre for tablets. I knew there were enough for all of us, so I went back to my room to edit my pointers module for the PluralSight course so it could "tack on" to the end of the published course. While videos rendered, I had a little back and forth on Twitter with people who had noticed how much fun I was having, and others who were playing with their tablets already. I slipped out to pickup the tablet about 7:30 but didn't open it till the module was done. Then:

10:48 pm: got major piece of work done ... yielding to temptation ... tablet here i come #bldwin
10:57 pm: How's that for fast setup? Everything's installed.... Trying visual studio next
11:11 pm: Just wrote a Win8 C++ app on the tablet with touch keyboard. Built and ran first time. #winning

That's right, I didn't even set up the bluetooth keyboard. People cite Visual Studio as an app you couldn't possibly use with touch. I wouldn't want to do it all day, but I did it! Then I played a bit more.

Day 2 started with another whole keynote. C++ was front and centre here. Some tweets:

17 minutes: RT @seesharp 3D graphics debugging at the pixel level in DirectX. Unreal. #bldwin
33 minutes: RT @bgervin killer strategy for MS to help developers make HTML apps for iOS and Android #bldwin
34 minutes: RT @tpdorsey RT @EisenbergEffect […] in C++, you can write your own WinRT library, which when built, can be used by C++, C#, VB and JS.
34 minutes: RT @jmorrill This new COM and C++ version is not _anything_ like what you think it is. From what I can tell so far...effing amazing!!!!
49 minutes: Loved it RT @MichaelDesmond Zander shows off the new image editor in VS11 as he works on a C++ DirectX game.
54 minutes: RT @shycohen Moving a VHD while the machine is running is cool. Moving a live VHD is even cooler! :) Will enable amazing things in the future. #bldwin
82 minutes: most tattoos ever in an MS keynote
95 minutes: RT @seesharp WOAH. Did not expect Steve Ballmer today. Everyone was starting to leave already. Woah! #bldwin
97 minutes: RT @carafone 500,000 downloads of #win8 already! #bldwin
98 minutes: RT @LACanuck And #Win8 was downloaded 500K times in 12 hrs RT @mashable: RIM Has Sold Just 490,000 PlayBooks - on.mash.to/nEu0dU #bldwin
102 minutes: That's what these keynotes were missing! Turns out it's a great time to be a developer. I was worrying, no-one had told me yet #bldwin
105 minutes: I've been paid to program since 1979. Keynotes tell me at least once a year it's a great time to be a developer. And they're right. #bldwin

Then it was time for simultaneous breakouts, and that meant choices. You can search the sessions list as well as I can. The C++ ones are not to be missed. These are happy people who are delighted to tell us what's been going on, and they're proud of it, too. At 3:13 I tweeted "Went quiet because i am massively engaged with C++ content in packed rooms. Small break between sessions to say "wow!" #bldwin #happycamper". The remainder of the afternoon was super confusing. People were jumping to conclusions, correcting each other, having opinions about the death of this that and the other. Because C++/Cx (the language extension you use to call WinRT) looks a lot like C++/CLI, people thought it was managed, but it's not, it's all native code and C++ Metro apps get a perf boost from that. The understanding that something amazing and powerful still has COM at the core began to grow. People were reporting trying to use Windows 8 gestures on their iPads and on nontouch screens, showing that the team has made some very intuitive choices. One tweet of mine I want to repeat: "Big props to Aleš Holeček for joining in the Q&A in the last C++ talk of the day when the questions got really Windows-y. Impressed. #bldwin". Even if you're not a C++ developer, download that session and watch the Q & A.

Day 3 started with being turned away from a C++ session, and so going to a different C++ session that was on at the same time. Several people from the C++ team made the trip with me, giving me a chance to tell them how impressive all this was. Meanwhile on mailing lists, people who weren't onsite and were 12 - 24 hours behind as they waited for session videos to go live were echoing the confusion and dismay of yesterday. It was hard to be patient with them. It's going to make sense, I wanted to tell them. Just hang in there! I took a small break from sessions to watch (and help with) the C++ part of Channel 9 Live (I am still waiting for links to the recording, because I couldn't hear everything they said and I want to) and then to Herb's second talk - again the room jammed full and dozens turned away, Don Box (who had earlier reminded us COM is still love) blurting out his admiration for Herb as a speaker and the great content, and the terrific line, "We protect against Murphy, not Machiavelli". What a time to be a C++ developer!

Day 4 kicked off with kind words from Daniel and a chance to hand out paper copies of the whitepaper I recently blogged. I got some quiet time with various smart people who told me their thoughts on all this. I'm still synthesizing it all. I also was downloading videos like a mad thing. I came home with 22 hours of video to watch and since then have grabbed another 15 or so. Some people began to realize they had over-reacted. Some excellent blogs began to appear - Doug Seven, for example, had several sensible things to say.

And then it was time to go. Glenn Ferrie tweeted "Writing C++ in the airport #bldwin #WinRT" and that summed up the week for me. I have a lot of watching, coding, thinking, reading and talking to do so I can establish what all this means. But hey, why not join me? It's a great time to be a developer!

Kate

Did you notice C++ AMP? You really need to

Kate Gregory — Thu, 15 Sep 2011 13:15:16 GMT

Word is starting to get out about C++ AMP, which appeared out of nowhere at a conference remarkably few Microsoft developers were paying attention to, because it was a hardware conference. There was information available in June, enough to get some of us excited:

An announcement on the VC++ team blog
A keynote video and blog from Herb Sutter
A deep dive video from Daniel Moth (it's hard to see the slides, so download them)

I got into this right away and have been playing with code and doing a little writing. This is the kind of technology that changes things more than you might think. By leveraging the GPU, your code might run 10x faster, 50x faster, or even 100x faster. And for you to be able to do that from C++, using familiar C++ constructs, and a debugger and profiler in Visual Studio? That means everyone can do it.

Well, not quite everyone. You do have to learn how to parallelize your algorithms. The syntax of using the GPU (or some other heterogeneous computing resource) is not hard at all. The computer science of knowing your work is data parallel can be hard. But let me show you "not hard". Consider this code to add a pair of one-dimensional array:

void AddArrays(int n, int* pA, int* pB, int* pC)
{
    for (int i=0; i<n; i++)
    {
            pC[i] = pA[i] + pB[i];
    }
}

Compare that to this:

#include <amp.h>
using namespace concurrency;

void AddArrays(int n, int * pA, int * pB, int * pC)
{
    array_view<int,1> a(n, pA);
    array_view<int,1> b(n, pB);
    array_view<int,1> c(n, pC);

    parallel_for_each(
        c.grid,
        [=](index<1> idx) restrict(direct3d)
        {
            c[idx] = a[idx] + b[idx];
        }
     );
}

It's all C++ and it's all pretty readable. And this code runs on the GPU and can be WAY faster (and use less power, meaning your data centre is cheaper or your battery lasts longer) just like that.

Recently Daniel Moth has published ten blog posts drilling into some details. They will help if you've decided to start using AMP and want to know how. But before you do that, you might like to read a little background on why heterogeneous computing matters, what other options you might have for doing it, and why C++ AMP is what you want to use. I've done a small whitepaper on just that and would love you to read it and let me know what you think.

Kate

My Pluralsight C++ Fundamentals course is live! (and free for a little while)

Kate Gregory — Tue, 13 Sep 2011 16:41:14 GMT

I've been writing a course for Pluralsight that covers the fundamentals of C++ - types, expressions, basic syntax stuff, templates, pointers, polymorphism - and it has gone live! During BUILD access to it is free. It uses Visual C++ Express, so you don't need to buy any tools to follow along. Lots of buzz at BUILD about C++, so if you want to see if it's a language you could use, here's a great way to find out.

I have more material coming on this, and some Windows 8 - specific material. This is just background. If you think you need to get up to speed on C++, here's how to do it. Let me know what you think.

Kate

Which compilers support which C++11 features?

Kate Gregory — Mon, 29 Aug 2011 20:08:39 GMT

For a long time now, whenever anyone asks me about support for particular C++0x (oh sorry C++11 :-) ) features in a given compiler, I've sent them to the list Scott Meyers maintains. The format is kind of strange because it's exported from a spreadsheet, but the information is invaluable. If you'd like to see more compilers covered, try the wiki at apache. Scott does gcc and Microsoft Visual C++; the wiki adds compilers from Intel, IBM, Oracle, and so on. You might be surprised to see the variations in coverage. Expect new versions to continue to add support as soon as possible.

Kate