Expressive code in C++

The classic GoF book shows code for design patterns in C++. But there are many more techniques in C++ that you can use to implement design patterns.

Here is a typical compilation error that occurs with dependent template types, and how to fix it.

The C++ core guidelines exort to use auto fo types, but to avoid them for concepts. We explore Herb Sutter explanations about why such a difference.

Read how to implement a map that you can query with 2 types of keys, and suggest other implementations if you think of any.

Expressive code in C++

Here is how lambdas can help you extract code from a long C++ function in a simple and safe way.

When a class contains a reference or a lambda, implementing operator= is difficult. Here is how to make the compiler generate operator= in those cases.

Here is the order in which you should put the elements of your class, to make its interface more readable.

Here is an attempt to write expressive code implementing a fallback: assigning the first valid value out of several possibilities.

THe CRTP is a powerful C++ idiom. Here is how concepts make it evolve in C++20.

Here is a generic algorithm to implmenet algorithms on sets that return a boolean.

To block the access of certain methods to a class, private inhertance is a practical option. Here is how to use it and the gotchas to avoid.

C++ offers 3 helpers to build a tuple: std::tie, std::make_tuple and std::forward_as_tuple. Understand when to use them and avoid undefined behaviour.

September is when you can make a plan for this year. Choose the right option and make your programming year a success.

std::exchange is a helper functions in the standard library. Here is what it does, and how to remember it once and for all.

Expressive code in C++

In this post we make the interface of a generic algorithm on sets more robust by using strong templates, and we use it to implement 8 algorithms on sets.

If your class can contain a lamba, then the compiler is not able to implement operator=. Here is how to solve that problem.

std::exchange is a underused function of the C++ standard library. Here is how it can make your code expressive.