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C++20 three-way comparison operator: Part 2--Gajendra Gulgulia

By Adrien Hamelin | Jun 30, 2021 12:20 PM | Tags: c++20

Simplifying your life.

C++20 three-way comparison operator: Part 2

by Gajendra Gulgulia

From the article:

In the first part of the tutorial series, I laid out the motivation behind C++20’s three way comparison operator: <=> and showcased the simplest use case how it can be useful to remove the boilerplate code for comparison operators : ==, >=, <=, !=, >, < if the semantics of the program requires us to implement them and how they can be gotten rid of by using the defaulted version of three way comparison operator...

Template Argument Deduction of Class Templates--Rainer Grimm

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).

Reversing words of a string with ranges--Marco Arena

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...

7 Top Tips for Debugging C++ -- Greg Law

By Anastasia Kazakova | Jun 21, 2021 01:32 PM | Tags: None

In this guest blog post, Greg will share a few top tips for debugging C++ code.

7 Top Tips for Debugging C++

by Greg Law

From the article:

Debugging is central to programming – you cannot be a great programmer without being great at debugging. Hopefully, my favorite C++ debugging tips will help you be as clever and productive debugging your code as you are writing it in the first place.

  • #1 Have a full kit of debugging tools
  • #2 Conditional breakpoints
  • #3 Watchpoints
  • #4 User-defined debugging commands in Python
  • #5 Pretty-print structures
  • #6 Time Travel Debugging
  • #7 Command find to search for a byte sequence

Transrangers: An Efficient, Composable Design Pattern for Range Processing -- Joaquín M López Muñoz

By Joaquín M López Muñoz | Jun 21, 2021 01:30 PM | Tags: c++20 advanced

Another twist on ranges.

Transrangers: An Efficient, Composable Design Pattern for Range Processing

by Joaquín M López Muñoz

From the article:

Transrangers are a new design pattern for efficient, composable range processing that can be faster than pull-based C++/Range-v3 views whithout losing any expressiveness. The underlying architecture combines ideas from push processing with the internalization of control flow. Transrangers can be used on their own or be leveraged as an implementation detail of range libraries to improve the performance of view-based operations.

 

C++ on Sea on Video

By philsquared | Jun 21, 2021 01:29 PM | Tags: None

In collaboration with Digital Medium, we've produced a video to showcase this year's event (ok, it was mostly Digital Medium, with some input from us)!

C++ on Sea on Video

Enjoy!

CopperSpice: char8_t

By Ansel Sermersheim | Jun 21, 2021 01:28 PM | Tags: None

New video on the CopperSpice YouTube Channel:

char8_t

by Barbara Geller and Ansel Sermersheim

About the video:

In this video we look at the new definition of char8_t in C++20. Since most developers use strings in their code, this is a big deal. This change caused a cascade and a ripple effect. Our video explains the controversy, confusion, and how your code will be affected.

Please take a look and remember to subscribe!

Painless C++ Coroutines--Gajendra Gulgulia

By Adrien Hamelin | Jun 21, 2021 11:56 AM | Tags: c++20

Another introduction.

Painless C++ Coroutines-Part 1

Painless C++ Coroutines-Part 2

Painless C++ Coroutines-Part 3

Painless C++ Coroutines-Part 4

Painless C++ Coroutines-Part 5

by Gajendra Gulgulia

From the article:

Incidentally I found the mechanics of coroutines quite obfuscating given the number of implicit and under-the-hood calls to several methods associated with coroutine and their return type objects. Even with tons of articles and posts on the web, I started to have a feeling that coroutines is an arcane feature that can be understood by the very few who are either in committee or are renowned authors of blogs, books and articles or experienced C++ library authors.
But after a month of arduous efforts and experiments, trials and errors to understand coroutine, I decided to write a tutorial series that can be used by any intermediate C++ developer to understand coroutine and in the effort I made sure that this article is the last that anyone should refer to, to learn, understand and demystify coroutines without being a super experienced C++ library author. If you’re impatient to get started, then directly jump to section 1: What are coroutines? Else read the Introduction section to get detailed highlight of the tutorial series...