What are some use cases for C++11 std::set?

What are some use cases for C++11 std::set?

C++11 std::set is useful for storing unique elements in a sorted order. Common use cases include managing collections of unique items, such as user IDs or product SKUs.

Can you give me an example of how to use std::set in code?

Sure! Here's a simple example:

#include <set>
#include <iostream>

int main() {
    std::set<int> mySet;
    mySet.insert(5);
    mySet.insert(3);
    mySet.insert(8);

    for (int num : mySet) {
        std::cout << num << " "; // Outputs: 3 5 8
    }
    return 0;
}

What are the performance benefits of using std::set?

The performance benefits include logarithmic time complexity for insertions, deletions, and lookups, which is efficient for large datasets.

Are there any limitations to using std::set?

Yes, std::set does not allow duplicate elements and has higher memory overhead compared to other containers like std::vector.