std::variant holding lambdas with captures in C++17 results in compilation scenarios
I'm working through a tutorial and I'm building a feature where I tried several approaches but none seem to work..... I've been trying to use `std::variant` in C++17 to hold different types of functions, including lambdas that capture variables. However, I'm running into a compilation behavior that I need to seem to resolve. The behavior message states that my lambda type want to be converted to `std::function`, which is a part of my `std::variant` definition. Here's the relevant code snippet: ```cpp #include <variant> #include <iostream> #include <functional> using FuncType = std::variant<std::function<void()>, int>; int main() { int x = 10; FuncType func = [x]() { std::cout << "Captured value: " << x << std::endl; }; // Compilation behavior occurs on the line above return 0; } ``` I've read that lambdas with captures have unique, unnamed types, which makes it difficult to store them directly in `std::variant`. To work around this, I tried using `std::function`, but it seems like the type deduction isn't working as I expected. I've also tried explicitly capturing the lambda by using a `std::function<void()>` like this: ```cpp std::function<void()> func = [x]() { std::cout << "Captured value: " << x << std::endl; }; ``` But it leads to the same compilation scenario. Can anyone guide to understand how to correctly store a lambda with captures in `std::variant`? Is there a different approach I should be considering to achieve this in C++17? Thanks in advance! For reference, this is a production application.