November 14-16, Berlin, Germany
November 18-23, Wrocław, Poland
November 25, Wrocław, Poland
February 10-15, Hagenberg, Austria
March 19-21, Madrid, Spain
April 1-4, Bristol, UK
June 16-21, Sofia, Bulgaria
By Adrien Hamelin | Jun 30, 2021 12:24 PM | Tags: intermediate
The series continue.
Template Specialization
by Rainer Grimm
From the article:
Templates define the behavior of families of classes or functions. Often it is required that special types or non-types may be treated special. To support this use case, you can specialize templates.
By Adrien Hamelin | Jun 23, 2021 12:33 PM | Tags: intermediate
The series continue.
Template Argument Deduction of Class Templates
by Rainer Grimm
From the article:
In my last post Template Arguments, I wrote about function template type deduction (C++98) and auto type deduction (C++11). Today I wear more modern hats. I start with automatic type deduction of non-type template parameters and class templates (C++17) and finish with automatic type deduction of concepts (C++20).
By Marco Arena | Jun 23, 2021 03:59 AM | Tags: ranges intermediate community
A new interpretation of a classical problem:
Reversing words of a string with ranges
by Marco Arena
From the article:
In this post I share the story of a “C++ aha-moment”, hence I use the hashtag #thatsarotate (resumed last Saturday at the Italian C++ Conference 2021 to honor our keynote speaker Sean Parent). Why not sharing your own stories of “C++ aha-moments” adding the same hashtag to your tweets, posts, or whatever? It would be really appreciated...
By Adrien Hamelin | Jun 15, 2021 09:47 AM | Tags: intermediate
The series continue.
Alias Templates and Template Parameters
by Rainer Grimm
From the article:
Today, I write about two topics: alias templates and template parameters. Alias templates are a way to give a name to a family of types. Template parameters can be types, non-types, and templates themselves.
By Adrien Hamelin | Jun 7, 2021 12:26 PM | Tags: intermediate
Back to the basics.
Surprise Included: Inheritance and Member Functions of Class Templates
by Rainer Grimm
From the article:
In my last post "Class Templates", I presented the basics about those. Today, I may surprise you with the inheritance of class templates and the instantiation of member functions of class templates...
By Adrien Hamelin | Jun 7, 2021 12:14 PM | Tags: intermediate
Quick A: the better match is picked, and an error generated if there none.
Recently on SO:
Overload resolution between object, rvalue reference, const reference
As there is only one parameter, the rule is that one of the three viable parameter initializations of that parameter must be a better match than both the other two. When two initializations are compared, either one is better than the other, or neither is better (they are indistinguishable).
Without special rules about direct reference binding, all three initializations mentioned would be indistinguishable (in all three comparisons)...
By Adrien Hamelin | May 31, 2021 02:36 PM | Tags: intermediate
How do you do it?
How to Insert Several Elements in a Vector (With No Memory Errors)
by Jonathan Boccara
From the article:
Inserting elements in a vector sounds like the most basic use case we can think of when it comes to using collections in C++.
Nevertheless, this is a complex topic in itself, because std::vector offers various ways to insert several elements. Choosing the most appropriate depending on your exact use case allows to write more expressive code. And misusing the interface of std::vector can lead to memory errors.
Let’s navigate the various ways to insert several elements in a vector in a safe way, so that you can choose the one that fits best for your code...
By Adrien Hamelin | May 24, 2021 12:16 PM | Tags: intermediate
The series continue.
Function Templates - More Details about Explicit Template Arguments and Concepts
by Rainer Grimm
From the article:
In the last post "Function Templates", I wrote about the overloading of function templates and automatically deducing the return type of a function template. Today, I dive deeper and specify explicitly the template arguments of a function template and bring concepts into the play...
By Adrien Hamelin | Mar 3, 2021 03:01 PM | Tags: intermediate
Clarifying.
return first example
by Marius Elvert
From the article:
It seems my “return first” post was not as enlightening as I had hoped. It was posted on reddit, and while the majority of commenters completely missed the point, it wasn’t really clear for those that did not just read the title. Either way, I am to blame for that – the examples and my reasoning were not very conclusive. So let me try clearing up the confusion with a better example...
By Adrien Hamelin | Feb 8, 2021 01:44 PM | Tags: intermediate c++20
Many ways.
12 Different Ways to Filter Containers in Modern C++
by Bartlomiej Filipek
From the article:
Do you know how many ways we can implement a filter function in C++?
While the problem is relatively easy to understand - take a container, copy elements that match a predicate and the return a new container - it’s good to exercise with the Standard Library and check a few ideas. We can also apply some Modern C++ techniques.
Let’s start!