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By Marco Arena | Feb 1, 2023 11:44 PM | Tags: intermediate design c++20
That little extra we might equip builder classes with:
The Toggle Builder
by Marco Arena
From the article:
If intended for general usage, the builder can result a bit uncomfortable when we go through some configuration object to toggle features. This often leads to a bunch of ifs..
By Blog Staff | Feb 1, 2023 01:28 PM | Tags: None
As the blurb says, "The C++ integral and floating-types zoo"...
Numbers are not easy
by Šimon Tóth
From the article:
Arguably one of the most error-prone parts of C++ is integral and floating-point expressions. As this part of the language is inherited from C, it relies heavily on fairly complex implicit conversion rules and sometimes interacts unintuitively with more static parts of C++ language.
This article will cover the rules and several surprising corner cases one can encounter when working with integral and floating-point types and expressions...
By Blog Staff | Feb 1, 2023 10:26 AM | Tags: None
Speaking of off-by-six errors...
The Rule of Zero, or Six
by Rainer Grimm
From the article:
The rule of zero, or six, is one of the advanced rules in modern C++. I wrote in my current book "C++ Core Guidelines Explained: Best Practices for Modern C++" about them. Today, I want to quote the relevant parts of my book in this post...
By Blog Staff | Feb 1, 2023 08:23 AM | Tags: None
As opposed to quirky eccentric ones...
Regular Types
by Rainer Grimm
From the article:
The term concrete type is strongly related to the term regular type. Let me, therefore, start this post with the term concrete type...
By Blog Staff | Jan 31, 2023 08:20 PM | Tags: None
You've almost certainly heard about it. But if you haven't used it, read on...
All about UBSan (UndefinedBehaviorSanitizer)
... and then light it up today on your current project.
By Blog Staff | Jan 31, 2023 08:17 PM | Tags: None
Delving into the "how it works" and "why use it" of std::initializer_list...
std::initializer_list in C++, Internals and Use Cases
by Bartłomiej Filipek
From the article:
std::initializer_list<T>, is a lightweight proxy object that provides access to an array of objects of type const T.
The Standard shows the following example...
By Blog Staff | Jan 31, 2023 07:59 PM | Tags: None
A new year, a new wave of standards adoption...
C++ Ecosystem in 2022: Fast Adoption of C++17 and C++20, C++ Toolset Landscape, and Better Code Analysis Practices
by Anastasia Kazakova
From the article:
... In this post we’ll discuss the final results, review the trends, and learn which direction the C++ community is currently evolving in. We also invite you to read through the key takeaways and detailed data for many programming languages and areas of software development...
C++ standard: developers are moving fast to C++17 and C++20...
By Ansel Sermersheim | Jan 27, 2023 12:59 PM | Tags: None
New video on the CopperSpice YouTube Channel:
A Peek at C++23
by Barbara Geller and Ansel Sermersheim
About the video:
C++23 is about to be published and we selected five of the most interesting changes. Two of these are enhancements to Lambda Expressions and the other three add new functionality.
Watch our new video to find out how the C++23 standard can improve readability, maintainability, and performance.
Please take a look and remember to subscribe.
By Blog Staff | Jan 19, 2023 04:30 PM | Tags: None
You've got to know where to find them, know how to bind them, know when to ask for help, from a hidden friend...
Argument-Dependent Lookup and the Hidden Friend Idiom
by Rainer Grimm
From the article:
Have you ever wondered why the following program works?
#include <iostream> int main() { std::cout << "Hello world"; }Why should the program not work? The overloaded output operator
operator<<is defined in thestdnamespace. The question is, therefore: How is the appropriate overloaded output operator forstd::stringfound? You may already assume it...
By Blog Staff | Jan 19, 2023 04:28 PM | Tags: None
A little less primitive...
Making C++ primitive types meaningfully movable when they have sentinel values
by Raymond Chen
From the article:
C++ primitive types do not have special semantics for move constructor or move assignment. Their move operations are just copies. But what if you really want them to move, say, because they have a sentinel value that represents an "empty" state...?