A union is a special data type where all members start at the same address. A union can hold only one type at a time; therefore, you can save memory. A tagged union is a union which keeps track of its types.
I started in the last post my journey through the rules for overloading of functions and operators. Let me continue and finish my journey with this post.
There are ten rules for overloading and overload operators in the C++ core guidelines. Lots of them are quite obvious but if you don't follow them, your software may become very unintuitive.
There are nine rules to access objects in class hierarchies. Let's have a closer look.
I needed three posts to present the 20 rules for class hierarchies in the C++ core guidelines. Here are the seven remaining rules.
In the last post, I started our journey with the rules to class hierarchies in modern C++. The first rules had a quite general focus. This time, I will continue our journey. Now, the rules have a closer focus.
Let's talk in this post about rules for class hierarchies in general and in particular. The C++ core guidelines have about thirty rules in total; therefore, I have a lot to talk about.
I can not think about modern C++ without lambda expressions. So my wrong assumption was that they are a lot of rules for lambda expressions. Wrong! There are less than ten rules. But as ever I learned something new.
This post will be about comparisons, swap and hash. That means I conclude with his post my treatise about default operations rules in C++.
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