Do you apply the new features introduced in the C++17 standard in your projects?

Yes, in my projects I have used some features of the C++17 standard that simplify the code and improve its safety and readability. For example:

• std::optional for safely representing values that may be absent.
• std::variant for storing a value of one of several types.
• if constexpr for compile-time conditional code.
• structured bindings for convenient unpacking of tuples and pairs.

An example of using structured bindings:

std::map<int, std::string> m = {{1, "one"}, {2, "two"}};
for (const auto& [key, value] : m) {
    std::cout << key << ": " << value << std::endl;
}

This makes the code more concise and understandable.