Using Monadic Operations for std::optional in C++23

2023/08/21

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The article introduces new monadic operations for std::optional in C++23, inspired by functional programming concepts. These operations, including and_then(), transform(), and or_else(), provide a more concise and expressive way to work with optional values, reducing boilerplate and improving code readability. The traditional approach in C++20 often requires nested if/else code blocks, making the code verbose and harder to follow. The introduction of monadic operations in C++23 offers a more elegant solution to this challenge. The and_then() operation allows for chaining functions that return std::optional, the transform() operation wraps a plain value in a new std::optional, and the or_else() operation provides a fallback value if the std::optional is empty. These new functions simplify the code and make the intent clearer. Developers can now work with optional values more efficiently and enhance their code with the latest features in C++23.