C++ Set: Using Lambda Functions for Iteration

Here's an example of how to use a lambda function with a C++ set:

#include <iostream>
#include <set>

int main() {
    std::set<int> myset;

    // Insert values into the set
    for (int i = 0; i < 10; i++) {
        myset.insert(i);
    }

    // Use a lambda function to print each value in the set
    std::for_each(myset.begin(), myset.end(), [](int value) {
        std::cout << value << ' '; 
    });

    return 0;
}

In this example, we create a set of integers and insert values into it using a for loop. We then use the std::for_each algorithm to iterate over the set and print each value using a lambda function. The lambda function takes an integer value as its argument and simply prints it to the console.