Constexpr FizzBuzz – An Exercise in Compile-Time Calculations
Recently, I have given a workshop about language features introduced in C++14 and C++17. Since a major part of those features includes constexpr things, I gave my trainees the task […]
Arne Mertz
algorithms and the KISS principle
You’ve probably heard about the rule to prefer standard algorithms over raw for loops. The major reason is that those algorithms say what is happening in the name and encapsulate […]
Cpp On Sea 2019 Trip Report
From February 3rd through February 6th I have been in Folkestone, UK, to visit the first C++ On Sea conference.
The pImpl Idiom
The pImpl idiom is a useful idiom in C++ to reduce compile-time dependencies. Here is a quick overview of what to keep in mind when we implement and use it.
Simple data structures
Keep simple data structures simple! There’s no need for artificial pseudo-encapsulation when all you have is a bunch of data.
std::string is not a Container for Raw Data
Sometimes we need unformatted data, simple byte sequences. At first glance, std::string might be a fitting data structure for that, but it is not.
C++ Quizzes and Trick Questions – Do we Have to Know the Answers?
If you follow some C++ social media accounts you will now and then encounter C++ quizzes and trick questions. Do we need to know the answers to be good C++ […]
Calling C Code from C++ With ‘extern “C”‘
Now and then we have the need to call functionality that was written in C from our C++ programs. For that, we need to use and understand extern “C”.
std::make_shared vs. the Normal std::shared_ptr Constructor
There are two different ways to create a std::shared_ptr: via one of its constructors and via std::make_shared. Both have their merits and different tradeoffs.
Same, same, but different: when different values compare equal
In C++, there are a few ways how values that we would consider different compare equal. A short overview.