By Adrien Hamelin | Jul 2, 2015 01:00 PM | Tags: c++11 basics
Bitesize Modern C++: nullptr
by Glennan Carnie
From the article:
What’s the value of a null pointer?
- 0
- NULL
- NUL
No doubt you’ve been involved in the (always heated) discussions about which is the correct one (By the way, if you said NUL you need to take yourself to one side and give yourself a stern talking to)...
By Adrien Hamelin | Jul 2, 2015 12:57 PM | Tags: c++14 advanced
More rapid-fire “now write this using lambdas” problem-solution drill with Sumant Tambe:
Fun with Lambdas: C++14 Style (Part 4)
by Sumant Tambe
From the article:
C++14 has a number of features that support functional-style design. By "functional-style" I mean heavy use of higher-order functions (functions that take other functions as arguments). Quite often arguments to the higher-order functions are lambdas (closures, to be precise). With automatic return type deduction for normal functions, writing higher-order function becomes very easy and seamless in C++14...
By Adrien Hamelin | Jul 2, 2015 12:52 PM | Tags: performance intermediate
Set-up and tear-down
by Andrzej Krzemieński
From the article:
Recently as part of program run-time performance optimization effort, I was scanning through the code for occurrences of keyword new. The goal was to find unnecessary memory allocations. I was surprised to find most of news in the unit test module. Not that there was any particular need for memory allocation: it is just that the framework that was chosen (a fairly popular one) enforces on the programmers bad practices of manually controlling the life-time of their objects...
By robwirving | Jul 2, 2015 05:56 AM | Tags: None
Episode 18 of CppCast the only podcast by C++ developers for C++ developers.In this episode Rob and Jason are joined by Aleksandar Fabijanic to discuss the C++ Portable Components project.
CppCast Episode 18: POCO Project with Aleksandar Fabijanic
by Rob Irving and Jason Turner
About the interviewee:
Alex holds two undergraduate degrees in mechanical engineering from Faculty of Engineering (University of Rijeka, Croatia) and the master's degree in software engineering from Citadel Graduate College in Charleston, South Carolina. Alex is a IEEE Computer Society Certified Software Development Professional. He's been seriously programming computers since 1992 and developing steel manufacturing automation and process control software using C and C++ since 1998. He used to compete in rowing on World Championship/Olympic Games level. Nowadays, he spends his free time reading, exercising and occasionally woodworking.
By Adrien Hamelin | Jul 1, 2015 11:21 AM | Tags: performance
Another video coming from NDC:
C++ on the Web: ponies for developers without pwn’ing users
by JF Bastien
What you will find in the video:
Delivering a program through a web browser really shouldn't force it to be slower than executing it directly on your OS. Similarly, doing so shouldn't force you to rewrite programs that target venerable, cornerstone native programming APIs—modern C++ STL, OpenGL, files and processes—nor should it forbid you from taking advantage of C++’s concurrency and parallelism in order to meet programming challenges like resource-constrained devices, battery-starved devices, and high performance code. Oh, and the browser should keep users secure from malicious sites.
In this presentation we'll showcase some resource-intensive applications that have been compiled for the PNaCl platform and, unsurprisingly, worked just like native code. These include a full development environment, complete with LLVM and your favorite build system and editor, all in an architecture- and OS-agnostic packaging. Then, we'll describe how we deliver native code on the web securely, so developers get their C++ ponies and users don’t get pwn’d. We’ll also touch on the fuzzing, code randomization and sandboxing that keep 1B+ users safe.
By Meeting C++ | Jul 1, 2015 08:32 AM | Tags: community basics advanced
The monthly overview on upcoming C++ User Group Meetings, this time its 18 User Groups who are meeting during summer!
C++ User Group Meetings in July
by Jens Weller
The list of meetings:
7.7 C++ UG Chicago - Memory Management in C++14 and Beyond
8.7 C++ UG San Francisco/ Bay area - HPX, C++ parallel programming framework
8.7 C++ UG Bristol - The Anatomy of Exceptional Engineers
9.7 C++ UG New York - July C++ Meetup
9.7 C++ UG Amsterdam - Hot C++, Part 2
9.7 C++ UG Dresden - Lazy generating non-integral values in range-based for loops
15.7 C++ UG Utah - Embedded Scripting with ChaiScript
15.7 C++ UG Bristol - Save the date
15.7 C++ UG Washington, DC - Q & A / Info Sharing
15.7 C++ UG Düsseldorf - Traveling for C++, a trip report
21.7 C++ UG Berlin - Ingo Josopait - Introducing the Goopax compiler for GPUs and Barb
21.7 C++ UG Portland - PDXCPP July Meeting-- feat. Jon Kalb
22.7 C++ UG San Francisco/ Bay area - Workshop and Discussion Group
23.7 C++ UG Rhein-Neckar - Presenting for Geeks
28.7 C++ UG Cologne - Monthly meeting
29.7 C++ UG Washington, DC - Q & A / Info Sharing
29.7 C++ UG Hamburg - Protocol Buffers
30.7 C++ UG Bremen - C++ Testframeworks
By Adrien Hamelin | Jul 1, 2015 08:00 AM | Tags: efficiency advanced
Have you registered for CppCon 2015 in September? Don’t delay – Early Bird registration is open now.
While we wait for this year’s event, we’re featuring videos of some of the 100+ talks from CppCon 2014 for you to enjoy. Here is today’s feature:
Common-sense acceleration of your MLOC build
Matt Hargett
Summary of the talk:
In this talk, I lay out detailed examples of steps I took to dramatically improve build times, and ultimately developer productivity, in very large, legacy C/C++ codebases. Is it worth the extra money for SSD or a 15K RPM SAS? How do I make ccache and distcc work together? How do I profile-optimize my toolchain? What network topology issues come into play? These questions, and more, are addressed in detail so you can immediately apply what you've learned to shorten the timeline between when you make a change to your code and when you see it in action.
By Blog Staff | Jun 30, 2015 02:55 PM | Tags: None
Another longtime committee member just posted his trip report for last month's meeting:
On Games(SG14) and TM(SG5) from The View at the May 2015 C++ Standard meeting in Lenexa
by Michael Wong
From the article:
The yellow brick road starts here in Kansas (actually Lenexa) hosted by Perceptive Software, and it is called C++17. At this meeting, it led with a major evening discussion on the philosophy of C++17 on a Monday night full session...
By Adrien Hamelin | Jun 30, 2015 11:36 AM | Tags: performance intermediate
Second part of a discussion about designing a type storing character strings of length N (known at compile-time and sufficiently small).
Handling short codes - part II
by Andrzej Krzemieński
From the article:
Today, we will continue with the implementation of a type capable of storing short codes. For the previous post on the subject see here. This time, we will focus on type safety...
By Adrien Hamelin | Jun 30, 2015 11:27 AM | Tags: intermediate
See the talk Kevlin Henney gave at the NDC this june:
Functional C++
by Kevlin Henney
What you will find in the video:
Functional C++? As opposed to what - dysfunctional? Well, kind of, yeah. Sure, in C++ the principal unit of composition is called a function, but that doesn't mean it's a functional language. And the idea of restricting mutability of state gets a nod with const, but it's a nod not a hug. And the STL shows influences of functional programming, although it falls short of being compositional. And, yes, sure, C++11 has lambdas, but then again, these days, who doesn't? Lambda calculus was invented in the 1930s.
This talk looks at how to express functional programming ideas in (post)modern C++ in a way that can be considered idiomatic to C++, rather than trying to use the power of overloading and metaprogramming to pretend C++ is Haskell or Lisp. In short, immutability beyond const and into shared and persistent data structures, concurrency beyond threading and locks, and thinking about functions as transformations and units of composition rather than actions.