By Meeting C++ | May 26, 2022 07:36 AM | Tags: speaking meetingcpp events community basics
Meeting C++ organized an event centered around sharing material on creating better talks and presentations for C++:
Technical Speaking about C++
by Jens Weller
About the article:
This event will focus on the process of creating technical talks for the C++ community. Various speakers will share their views on how to submit, prepare and give talks to the C++ community in the form of lightning talks.
By Adrien Hamelin | May 17, 2022 12:57 PM | Tags: None
The series continue.
Should I pay attention to the warning that I’m std::move‘ing from a trivial type? Part 2
by Raymond Chen
From the article:
Last time, we looked at motivations for std::move‘ing from a trivial type. Our investigation looked at the problem through the eyes of the object moved from, but there’s another way to look at the problem, and that’s from the point of view of the object being moved to...
By Adrien Hamelin | May 17, 2022 12:52 PM | Tags: intermediate
What do you think?
Should I pay attention to the warning that I’m std::move‘ing from a trivial type? Part 1
by Raymond Chen
From the article:
Say you have a class that is trivial...
By Adrien Hamelin | May 13, 2022 01:23 PM | Tags: community
What do you think?
Dawn of a new C++ cycle
by Jens Weller
From the article:
It was 10 years ago when one would realize that a new era for C++ was in its beginning: C++11 was a fundamental change. Many things that one wanted to have in the language or standard library suddenly became available, if one had the right compiler in the newest version. And in this time 10 years ago, the first C++now happend in Aspen, as it has again in the beginning of May...
By Adrien Hamelin | May 13, 2022 01:17 PM | Tags: c++20 c++17
Interested?
Speeding up Pattern Searches with Boyer-Moore Algorithm from C++17
by Bartlomiej Filipek
From the article:
With C++17, you can now use more sophisticated algorithms for pattern searches! You’ll have more control and a promising performance boost for many use cases. This article shows primary usage and runs a benchmark comparing the new techniques.
May 2022 Updates: added notes about C++20 and constexpr algorithms, updated the benchmark and compared against std::ranges::search and custom strchr versions.
By Giovanni Dicanio | May 11, 2022 01:58 PM | Tags: None
Continuing from the previous Adventures with string_view post, in this new article I show how you can achieve massive performance gains using code characterized by O(1) constant-time asymptotic complexity.
Adventures with string_view: Optimizing Code with O(1) Operations
by Giovanni Dicanio
From the article:
While this code works fine, it’s possible to optimize it.
As the saying goes, first make things work, then make things fast.
Replacing a O(N) operation with a O(1) operation in this case gives a performance boost of 88 ms vs. 445 ms, which is an 80% performance gain!
By Adrien Hamelin | May 11, 2022 01:35 PM | Tags: c++20
The series continue.
Check Types with Concepts - The Motivation
by Rainer Grimm
From the article:
static_assert allows you to check at compile time if a type T fulfills the Concept: static_assert(Concept<T>).
By Adrien Hamelin | May 11, 2022 01:25 PM | Tags: c++20
Surprising but useful.
C++20 Coroutines back to basics — Restrictions and rules for legal coroutines
by Gajendra Gulgulia
From the article:
In my previous articles on coroutines, I attempted to explain the mechanics of coroutine suspension, resuming it, promise_type, awaiters and awaitables. In this article, I would like to answer two very basic questions:
- What are the restrictions on coroutines ?
- When can a coroutine usage be legal in terms of member, non-member functions of class/structs, lambda expressions and so on ?
By Adrien Hamelin | May 11, 2022 01:23 PM | Tags: c++20
The series continue.
Using Requires Expression in C++20 as a Standalone Feature
by Rainer Grimm
From the article:
In my last post "Defining Concepts with Requires Expressions", I exemplified how you can use requires expressions to define concepts. Requires expressions can also be used as a standalone feature when a compile-time predicate is required...
By Jens Maurer | May 9, 2022 12:02 AM | Tags: None
Moves
Modern C++ In-Depth — Move Semantics, Part 2
by Phani Adusumilli
From the article
In this installment, we'll take a look at how we might go about defining move semantics for our own custom types, should we need them.