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constexpr Lambda Functions

Explore how C++17 allows lambda functions to be marked as constexpr, enabling compile-time evaluation. Understand the limitations and practical usage of constexpr lambdas to write efficient and expressive modern C++ code.

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Lambda expressions were introduced in C++11, and since that moment they’ve become an essential part of modern C++. Another significant feature of C++11 is the constexpr specifier, which is used to express that a function or value can be computed at compile-time.

In C++17, the two elements are allowed to exist together, so your lambda can be invoked in a constant ...