February 11, 2013

Video of C++ and Beyond 2012: Herb Sutter - atomic Weapons

Posted by Lisa Wells under Videos | Tags: , , , , , , |
Comments Off on Video of C++ and Beyond 2012: Herb Sutter - atomic Weapons 

Channel 9 has posted a two-part video  - Herb Sutter’s “atomic<> Weapons” presented at C++ and Beyond 2012 last summer in Asheville, NC. Here are the links: atomic<> Weapons, 1 of 2 and atomic<> Weapons, 2 of 2.

atomicweaponspart1atomicweaponspart2

Here is the abstract:

This session in one word: Deep.

It’s a session that includes topics I’ve publicly said for years is Stuff You Shouldn’t Need To Know and I Just Won’t Teach, but it’s becoming achingly clear that people do need to know about it. Achingly, heartbreakingly clear, because some hardware incents you to pull out the big guns to achieve top performance, and C++ programmers just are so addicted to full performance that they’ll reach for the big red levers with the flashing warning lights. Since we can’t keep people from pulling the big red levers, we’d better document the A to Z of what the levers actually do, so that people don’t SCRAM unless they really, really, really meant to.

Enjoy!

 

January 7, 2013

Video of C++ and Beyond 2012: You don’t know [blank] and [blank]

Posted by Lisa Wells under Videos | Tags: , , , , , |
Comments Off on Video of C++ and Beyond 2012: You don’t know [blank] and [blank] 

Channel 9 has posted another video  - Herb Sutter’s “You don’t know [blank] and [blank]” presented at C++ and Beyond 2012 last summer in Asheville, NC. Here’s the link: You don’t know [blank] and [blank].

youdontknow

Here is the abstract:

In addition to the many new C++11 features that everyone’s listing, it has dawned on me over the winter that there’s actually another major change that isn’t being talked about anywhere, or even being listed as a change in C++11 at all as far as I know, because I and other key experts and committee members I’ve asked didn’t fully realize that we altered the basic meaning of not one but two fundamental keywords in C++. It’s a change that has profound consequences, that rewrites and/or invalidates several pieces of pre-C++11 design guidance, and that’s directly related to writing solid code in a concurrent and parallel world. This isn’t just an academic change, either — everyone is going to have to learn and apply the new C++11 guidance that we’ll cover in this session.

I plan to talk about it first at C&B, in a session tentatively titled as above — I’ll fill in the keywords later. You may already guess a few keyword candidates based on the description above, and here’s a final hint: You’ll hardly find two C++ keywords that are older, or whose meanings are more changed from C++98 to C++11. (No, they aren’t auto and register.)

Enjoy!