I'll Build Myself -- Phil Nash
A new instant classic for the new year, by the great Phil Nash of C++ on Sea...
News
An interview that went viral -- Rainer Grimm
Sending us straight into the new year with cash, cars, and games:
An interview that went viral
by Rainer Grimm
From the article:
I gave the interview for the e-finance-blog "efinancialcareers". I essentially stated the following:
- C++ is heavily used in the finance industry, for game developers, and in the automotive industry.
- When you want to learn C++, start at least with C++11.
- C++ is often used to build infrastructure.
- C++ is too big to fall.
... In total, I got almost 2000 comments. Today, I want to present the main points about the final interview, because this is my motivation for writing articles, posts, and books, recording videos, and teaching and mentoring C++...
libstdc++ gets C++20 chrono
Imagine Jonathan Wakely in a red suit with his helper elves, delivering presents:
libstdc++ gets C++20 <chrono>
As seen on Reddit:
It looks like Jonathan Wakely has just today contributed a huge amount of effort towards
<chrono>.He's added the time zones, leap seconds, all that good stuff.
He's even added GDB pretty printers for inevitable date time debugging!
And these features are supported in <format>, which libstdc++13 has, if you weren't already aware. He's also made many other various improvements. Lets give a round of applause to Jonathan Wakely!
Using modules in the big three compilers
With detailed step by step instructions on how to make it work...
Using modules in the big three compilers: a small experiment
From the article:
The goal of my experiment was to see how easy it is to write code that a) uses C++20 modules, b) can be compiled by GCC, Clang and MSVC without using conditional compilation, c) imports something from the standard library, d) exports at least one templated function, e) has a peculiarity that makes the module harder to find (in my case, the module is named b but the file that contains it is named a.cppm).
The experiment sort of succeeded...
Reddit: C++ Tokyo Meetup with JF Bastien, Jason Turner, Chris DiBella
Far east (const?) panel, starting right off with modules:
C++ Tokyo Meetup with JF Bastien, Jason Turner, Chris DiBella
The Strategy Pattern -- Rainer Grimm
A canonical example:
The Strategy Pattern
by Rainer Grimm
From the article:
Purpose: Defines a family of algorithms and encapsulates them in objects
Also known as: Policy
Use case:
- Different variations of an algorithm are needed
- The client does not need to know the algorithm
- The algorithm should be exchangeable at the run time of a program...
AMA with Inbal Levi - Meeting C++ 2022
Hot off the video press:
The Template Method -- Rainer Grimm
With or without actual templates:
The Template Method
by Rainer Grimm
From the article:
The key idea of the Template Method is easy to get. You define the skeleton of an algorithm that consists of a few typical steps. Implementation classes can only override the steps but cannot change the skeleton. The steps are often called hook methods...
AMA with Bjarne Stroustrup @ Meeting C++ 2022
ABSA == Ask Bjarne Stroustrup Anything:
High-confidence Lifetime Checks in Visual Studio version 17.5 Preview 2 -- Gabor Horvath
More safety please:
High-confidence Lifetime Checks in Visual Studio version 17.5 Preview 2
by Gabor Horvath
From the article:
The C++ Core Guidelines’ Lifetime Profile, aims to detect lifetime problems, like dangling pointers and references, in C++ code. ... Lately, there has been an increased push in the C++ community to introduce lifetime-related safety features, which has led us to revisit the lifetime analysis in MSVC.
We spent the last couple of months looking into the results of using the lifetime analysis on real world code. This blog post summarizes our experience and the improvements we made along the way. The biggest change is the introduction of a new set of warnings. These warnings are the high-confidence versions of the existing warnings. Users who want less noise can enable only the high-confidence warnings, while users who want more rigorous checks at the cost of noise can enable both the old and the new warnings. As of 17.5, the high-confidence warnings are still experimental, but depending on the feedback we might include them in some of the recommended profiles in future versions...