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C++17 in Detail: A Deep Dive

Inline Variables

Explore the concept of inline variables introduced in C++17 and understand how they improve code readability and flexibility by allowing static variable definitions in multiple translation units. Learn why inline variables are more versatile than constexpr variables and see practical examples of their use to simplify your C++ code.

We'll cover the following...

With Non-Static Data Member Initialization introduced in C++11, you can now declare and initialize member variables in one place:

C++
class User
{
  int _age {0};
  std::string _name {"unknown"};
};

Still, with static variables (or const static), you need a declaration and then a definition in the implementation file.

C++11 with constexpr keyword ...