June 8-13, Brno, Czechia
June 17-20, Folkestone, UK
September 12-18, Aurora, CO, USA
November 16-21, Búzios, Rio De Janeiro, Brazil
November 26-28, Berlin, Germany
By Blog Staff | Apr 14, 2014 03:02 PM | Tags: intermediate
Today from the desk of Andrzej:
Common Optimizations
by Andrzej Krzemieński
From the article:
Language designers, compiler and library vendors make a great effort to make your programs run faster and faster. This post is a tour of some common performance optimizations in C++.
Consider the following code that deals with
std::string: ...
By matt | Apr 10, 2014 02:26 PM | Tags: xml performance parsing intermediate efficiency advanced
Some high-performance techniques that you an use for more than just parsing, including this week's darling of memory management:
Parsing XML at the Speed of Light
a chapter from "The Performance of Open Source Applications"
by Arseny Kapoulkine
From the chapter:
This chapter describes various performance tricks that allowed the author to write a very high-performing parser in C++: pugixml. While the techniques were used for an XML parser, most of them can be applied to parsers of other formats or even unrelated software (e.g., memory management algorithms are widely applicable beyond parsers). ...
Optimizing software is hard. In order to be successful, optimization efforts almost always involve a combination of low-level micro-optimizations, high-level performance-oriented design decisions, careful algorithm selection and tuning, balancing among memory, performance, implementation complexity, and more. Pugixml is an example of a library that needs all of these approaches to deliver a very fast production-ready XML parser–even though compromises had to be made to achieve this. A lot of the implementation details can be adapted to different projects and tasks, be it another parsing library or something else entirely.
By Blog Staff | Apr 7, 2014 09:05 AM | Tags: intermediate advanced
Today on the C++ and Beyond blog, Scott Meyers announced that registration is now open for a C&B event in Germany this fall, largely repeating the C&B December 2013 material for the benefit of those who were not able to attend the sold-out event in December.
C&B 2014: September 29 - October 1 in Stuttgart!
with Scott Meyers, Herb Sutter, Andrei Alexandrescu
Maritim Hotel, Stuttgart, Germany
September 29 - October 1, 2014
Note: The web page for the event is in German, but the seminar itself will be given in English.
From the announcement:
You can think of this event as the C&B Road Show, because the organization is a little different from how we’ve done things in the past: Most of the talks will be updated versions of the presentations we gave at C&B 2013. (See the schedule here.) If you were unable to attend C&B this past December, this is your chance to see what you missed. ... [See the] web page for C&B 2014 for all the details of this event.
This will be the only C&B in 2014, so we hope to see you in Stuttgart at the end of September for the first-ever C&B in Europe!
By Blog Staff | Apr 4, 2014 11:09 AM | Tags: performance intermediate efficiency basics
A recording of yesterday's //build/ talk by Herb Sutter is now available on Channel 9:
Modern C++: What You Need to Know
by Herb Sutter
This talk will give an update on recent progress and near-future directions for C++, both at Microsoft and across the industry. This is a great introduction to the current state of the language, including a glimpse into the future of general purpose, performance-intensive, power-friendly, powerful native programming.
From the advance description on Herb's blog:
I was asked to give a "foundational talk" about C++, and I decided that meant I should focus on addressing two questions that I get a lot these days:
- FAQ #1 (1-2 slides): When should I use C++ compared to another language -- on all platforms in general, and on Microsoft platforms in particular?
- FAQ #2 (lots of slides): What should I know about C++ if I’m a {Java|C#|JavaScript|Python|...} developer?
Even if you're a seasoned C++ developer, there are some nuggets and data points in the middle of the talk that I think you will find useful in your own work...
By Blog Staff | Apr 1, 2014 12:50 AM | Tags: intermediate
From the desk of an author going by the name Pubby, a nice short article showing off "yield return" using Boost's coroutines library:
Multi-step iterators using coroutines
by Pubby
Note: The short article is serious. The author's favorite image, maybe not so much.
By Blog Staff | Mar 31, 2014 10:17 PM | Tags: intermediate c++11 basics
A recently posted talk by BitTorrent's chief architect:
C++ in the 21st Century
by Arvid Norberg
From the announcement:
In this edition of Tech Talks: an overview of some C++ gems. I threw this talk together because my team was about to start a new project in C++11. Since it’s fairly new, I figured some of it might not be as well-known as it should. Fundamentally, I’m pretty excited about all the new possibilities in C++11. Even higher-level abstractions, at even lower cost than C++98.
In the video below, we go over for-loops, automatic type deduction, lambda functions and more.
By matt | Mar 21, 2014 08:33 AM | Tags: intermediate c++14 c++11 basics
Peter Sommerlad on C++11 and C++14 Standard(s) and Standardization:
Peter Sommerlad on C++11 and C++14 Standard(s) and Standardization
Created by Peter Sommerlad March 6, 2014
From the presentation:
Why is C++ in again?
• more computing per Watt!
• mobile - battery powered
• servers - cloud computing
• high-performance computing & GPUs
• better abstractions than C
• without performance price (e.g. of a VM)
• embedded (higher-level type safety)
• security (buffer overruns, pointers)
By Blog Staff | Mar 21, 2014 08:20 AM | Tags: intermediate basics
Scott Meyers' work on his new "Effective C++" book, tentatively titled Effective Modern C++, progresses with an updated draft table of contents and sample Item available:
Book Report: New Title, New TOC, New Sample Item
by Scott Meyers
Highlights from the article:
I recently finished the 32nd Item for the book, thus giving me drafts of five full chapters. The math still shows that about 40 Items will fit in the book's allotted 300 pages, so yesterday I took a hatchet to the prospective table of contents and chopped the number of Items down from 51 to 41. (Why 41? Because I have a feeling that one of the Items I've written will eventually get jettisoned as not being important enough to make the final cut.) Here's the current draft TOC....
[Table of Contents -- read it, just the titles give useful guidance]
... The most recent Item I wrote was "Distinguish
()and{}when creating objects." I blogged about one aspect of this topic here, and I thought you might be interested to see what I came up with. I've therefore made the current draft of this Item available, and I welcome your comments on it. Like almost all Items I've written, it's too long, so I'm especially interested in suggestions on how I can make it shorter, but I welcome all suggestions for improvement.
By Blog Staff | Mar 21, 2014 08:11 AM | Tags: intermediate
Scott Meyers has announced upcoming talks for 2014:
Upcoming Public Presentations
by Scott Meyers
2014 is shaping up to be a year with more public presentations than usual. As always, you can find links to all my scheduled talks at my Upcoming Talks page, but here are the ones scheduled so far: ... there will be more to come.
Highlights from the article:
May 22, Menlo Park, CA, USA: "The Last Thing D Needs"
June 4, Oslo, Norway: "Effective Modern C++," "Type Deduction and Why You Care," "The Most Important Design Guideline," and "CPU Caches and Why You Care"
September 17, Pennsylvania, USA: "CPU Caches and Why You Care"
October 7-8, London, UK: Two-day "Effective C++11/14 Programming" seminar
By Blog Staff | Mar 20, 2014 02:13 PM | Tags: intermediate
Today from the desk of Andrzej:
String's Length
by Andrzej Krzemieński
From the article:
Let’s start with a small test. Is the invariant expressed with the following assertion correct?
void test_length(std::string const& s) { assert(s.length() == strlen(s.c_str())); }It is not; otherwise I wouldn’t be mentioning this in the post; but do you know why it is wrong? ...