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++ […]
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.
Modern C++ Features – Quality-of-Life Features
With the new C++ standards, we got a lot of features that feel like “quality-of-life” features. They make things easier for the programmer but do not add functionality that wasn’t […]
“Modern C++” != “New(est) Standard”
The term “Modern C++” is often used interchangeably with “Code using the new C++ standard”. Here, “new” may be anything from C++11 to C++17 or even whatever is available of […]
Functions of Variants are Covariant
Today I am happy to present a guest post by Alfredo Correa about covariant visitors for std::variant. Alfredo works at Lawrence Livermore National Laboratory where he uses C++ to develop […]
Modern C++ Features – std::optional
Sometimes we want to express the state of “nothing meaningful” instead of a value. This is the use case for C++17’s std::optional.
Overload: Build a Variant Visitor on the Fly
Having written about std::variant and std::visit last week, it’s time to string together some modern C++ features to build a naive basic implementation of overload, a proposed C++ feature.
Modern C++ Features – std::variant and std::visit
std::variant is a library addition in C++17 for sum types, and std::visit is one of the ways to process the values in a std::variant.