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The text you quoted would convince me never to let anyone buy this book. && and || are not bitwise operators, they are logical operators. & and | are bitwise operators, and they are not short-circui …

Having a move constructor is just a (very useful) optimisation for situations where the language used to force you to have two objects for a short time, when you really only wanted one. For example, …

It seems that you are using the secondary mutexes not to lock access to an optimisation problem, but to determine whether an optimisation problem is being optimised right now or not. That is complet …

One big problem when changing compilers is undefined behaviour: If the code that you receive invokes undefined behaviour, then anything is possible - including that the code works just fine and passes …

The rule is: Every header file should be capable of being compiled on its own. If you have a file myheader.h, then a source file with a single line #include "myheader.h" should compile. If your head …

You assume that you will have one radio. Obviously you might have zero radios, and there is no reason to believe that there could never be multiple radios. To be future proof: Have a class that retu …

If you think you want to be able to modify counter, then you create a function setCounter(value). Not caring at the moment how you do it. Having a function returning the address of the variable is an …

As an example: operator<< has a return value that is depending on the call either absolutely needed or absolutely useless. (std::cout << x << y, the first is needed because it returns the stream, the …

“optional” should be used for things that are genuinely not there, and not for default values. So if it is possible that there are no print settings, make it optional. If you decided to use default va …

Before you go in deep, look at what “memory safe” in other languages means. A[i] = 0 with out of range i can overwrite a random memory location. Or it can instantly crash your software. Or it can thro …

You should stop using virtual calls if: This leads to a measurable speed improvement. For in-house software: Cost savings due to the speed improvement demonstrably outweigh the development cost. Fo …

How would you describe the function? “It takes an A object and extracts all the bits that it needs”, or “it takes an info object and extracts all the bits it needs”? What does the caller expect? That’ …

There are very few guarantees about the layout of instance variables in C++. For example, the presence of the "private" or "public" keyword means that the C guarantee about members have ascending memo …

Use all warnings that are useful or mostly useful. Try all the options. Turn one on, and look at the warnings. Then you decide: Do these warnings show situations where a bug might be hiding? Or do the …

I bet it doesn’t make a difference. If it does: Implement your function with a non virtual inline function named inline_f which has a T* pthis as the first argument and put it in the header file. Then …