The section to enumerations has eight rules. Since C++11, we have scoped enumerations which overcome a lot of the drawbacks of classical enumerations.
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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.
Just updated: The C++ Standard Library: What every professional C++ programmer should know about the C++ standard library.
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.
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