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By Felix Petriconi | Jan 26, 2015 05:49 AM | Tags: None
Eric Niebler picked up the Sean Parent's challenge regarding his for_each_argument tweet.
for_each_arg
by Eric Niebler
And after several iterations between Sean and Eric this is the beautiful result:
template<class F, class...Ts> F for_each_arg(F f, Ts&&...a) { return (void)initializer_list<int>{(ref(f)((Ts&&)a),0)...}, f; }
By Andrey Karpov | Jan 25, 2015 11:53 PM | Tags: c++11 64-bit
Developing 64-bit applications in C/C++ requires much attention from a programmer. There are a number of reasons for 32-bit code to fail to work properly when recompiled for the 64-bit platform. Let's find out if the new features introduced in C++11 have made 64-bit software programmers' life any better and easier.
C++11 and 64-bit Issues
by Andrey Karpov
From the article:
Extensive use of the C++11 language's new constructs in your code doesn't guarantee that you will avoid 64-bit errors. However, the language does offer a number of useful features to help make your code shorter and safer.
By Blog Staff | Jan 24, 2015 05:03 PM | Tags: None
New WG21 papers are available. If you are not a committee member, please use the comments section below or the std-proposals forum for public discussion.
Document number: N4349
Date: 2015-01-24
WG21 2014-12-05 Ballot Resolution Telecon Minutes
by Jonathan Wakely
By Felix Petriconi | Jan 23, 2015 03:53 PM | Tags: intermediate c++11
Inspired by Sean Parent's recent Tweet I came up with this idea:
A Small Set-Algorithm For Enum Values
by Felix Petriconi
From the article:
Often we have in our own production code statements like this:
auto predicate = [](State state) { return state == MyEnumClass::ValueA || state == MyEnumClass::ValueD || state == MyEnumClass::ValueEWithAVeryLongName; };A better readable solution with less typing is described there.
By ltorje | Jan 23, 2015 10:49 AM | Tags: None
A picture is worth a thousand words, a graph even more:
The Growth of Modern C++ Support
by Jonathan Adamczewski
From the article:
I’ve charted the numbers from Christophe’s data for C++11, C++11 Concurrency, C++14 and C++17.
By Andrey Karpov | Jan 23, 2015 10:35 AM | Tags: None
This small post is for those programmers who use Twitter or are just about to start doing this. I'm sure developers will find some useful information here.
Twitter for C++ Programmers
by Andrey Karpov
From the article:
So, you are a C++ programmer. If you are wondering if you can find something interesting for yourself on Twitter, I have a few tips for you.
By Adrien Hamelin | Jan 23, 2015 08:00 AM | Tags: c++11 advanced
While we wait for CppCon 2015 in September, we’re featuring videos of some of the 100+ talks from CppCon 2014. Here is today’s feature:
The Canonical Class
by Michael Caisse
Summary of the talk:
It was a simpler time. A period in which every college student and learn-C++-in-a-weekend duffer could write a class with the assuredness that it would behave as desired when assigned and copied. There was a check list. Complete the checklist, add some domain specific behaviour, bake in the regression oven, and you were done.
Enter C++11 with its fancy new use of the delete keyword, additional applications of explicit, rvalue references, and some perfect forwarding. How are you to write a "simple" class? Should you include a swap? What does movable mean and are there expected semantics? When is the noexcept specifier used?
During this session we will explore the boilerplate of a C++11 class. The session will touch on rvalue references, move semantics, perfect forwarding, explicit, noexcept, initializer lists, and more as it applies to producing the desired semantics for our classes and structs.
By Meeting C++ | Jan 23, 2015 06:47 AM | Tags: templates performance parallelism intermediate generic experimental concurrency c++11 advanced
A new video from Meeting C++ 2014:
Generic parallel programming for scientific and technical applications
by Guntram Berti
From the talk description:
Technical and scientific applications dealing with a high computational load today face the challenge to match the increasingly parallel nature of current and future hardware. The talk shows how the increased complexity of software can be controlled by using generic programming technologies. The process and its advantages are introduced using many concrete examples...
By Felix Petriconi | Jan 23, 2015 12:25 AM | Tags: intermediate c++11
Sean Parent just published via Twitter this amazing short piece of code.
for_each_argument
by Sean Parent
The code is:
template <class F, class... Args>
void for_each_argument(F f, Args&&... args) {
[](...){}((f(std::forward<Args>(args)), 0)...);
}
By Felix Petriconi | Jan 22, 2015 11:57 PM | Tags: intermediate basics
In this next article Arne Mertz describes different type casts.
A Casting Show
by Arne Mertz
From the article:
In C++ there are two ways of type conversions: implicit and explicit type conversions. The latter are called type casts and they are what this post is about.